Method and device for reproducing from a recording medium having a first management area for managing the first attribute and the second management area for managing the second attribute of the program recorded in the recording area

 

(57) Abstract:

The invention relates to a recording medium in the form of a disk having a management and program area. When playing back a disc determine the initial position of the second control area on the basis of the time information that specifies the second control region and which is contained in the first control information. The data recorded in the program area are audio data. Information about the attributes managed the second management area is at least one of the group, which included information about the disc title, artist, title, and the kinds of programs, number of the identification code of the recording medium in the form of a disc and program-related information message or the levels and frequency level of the program. You can display the first and the second control information. The technical result - providing the reader with the character information without the use of specialized chips. 7 C. and 1 C.p. f-crystals, 22 ill.

The technical field to which the invention relates

The invention relates to a recording medium in the form of a disk having at least one programme area and babsolute time for the program. The invention relates also to a method and playback device with a recording medium having a disk shape.

Art

The format for recording data on such an optical disc includes the region table of contents 91 as a region, the control program area program 92 and the target area 93 in the quality area, closing the program, when viewed from the inner region to the outer edge of the optical disk, as shown in Fig.1.

In the optical disc having recorded audio data, the audio data recorded in the program area 92, and the playback time for each program recorded on the optical disk, the number of programs and total playback time are determined by region table of contents 91.

When reading apparatus playback from disk audio data of the program area 92 is coming to an end and the optical read head reaches the output area 93, the playback device with the drive terminates the playback operation with audio CD.

In accordance with Fig. 2, the playback device with the drive reads audio data from the optical audio CD 61 using an optical reader 62 and obray received playback data to the output 75 of the digital signal or analog outputs right channel R and the left channel L. Servo signals for focus and tracking (movement of the read head on the information track), received from the playback device from the disk is transferred to witness focusing system 70 and tracking system 71 for tracing the track of the record, respectively, while the signals of the tracking error is transmitted only on the tracking system the tracking and maintenance of tracks 71.

In this device, playback of the disc playback signal read from the optical audio CD 61 optical reader 62 and transmitted to the processing unit of the analog signal 64, which converts the signals play in a two-level signals at block 65 the selection of the synchronization signals and the processing unit clock signal (timer) 67.

The block selection signal synchronization 65 selects the synchronization signal frames of two-level signals based on the clock signal from the processing unit clock signal 67, and transmits this signal to the frame synchronization and clock signals to the processing unit digital signal 66. Duplex signals of which was allocated to the law of synchronization frames, served on devices is Denia on the basis of the reference clock signal oscillator 69 and clock signals of the timer 67. The clock signal of the timer 67 are received at block 65 the selection of the synchronization signals and the processing unit digital signal 66, and the rotary servo-mechanism 72.

Device digital signal processing 66 decodes the audio signal, from which were selected personnel synchronization signals based on the clock signal from the block 67 and the reference clock signal oscillator 69, and passes the decoded digital signals to the detection unit incremental code 68, digital-to-analog Converter (DAC) 73 and the output 75 of the digital signal.

DAC 73 converts the digital signal into analog signals, which are fed to the amplifier 74. This amplifier 74 amplifies the analog audio signals from the DAC output 73 and outputs the amplified signal to a digital signal output 75 or analog outputs right channel R and the left channel L.

The detecting device extension code 68 selects the data of the P - and Q-channels, as will be explained hereinafter, of the digital signals from the output of the processing unit digital signal 66 and sends the data of the respective channels to the controller 76. This controller controls the device tracking and maintenance of tracks 71 on the basis of the data of the P - and Q-channels, which not only is Nala management focusing on the basis of error signals of the focus from the optical reader 62 and sends the control signals a focus on optical reader 62 to move vertically of the objective lens.

The rotary servo-mechanism 72 generates the control signals by rotation on the basis of the clock signal processing unit clock signal 67 and the reference clock signal oscillator 69 and transmits the control signal by the rotation of the motor 63 of the drive to control the rotation of the engine.

Device tracking and maintenance of tracks 71 generates the control signals tracking (automatic adjustment of the read head on the information track) on the basis of the signals of the tracking error from the optical reader 62 and sends control signals to the optical reading device 62 for controlling the tracking operation of this device.

Control signals for the positioning of the program produced by the control device 76 on the basis of the data extension code from P - and Q-channels. The signals of the motion control program is sent to the optical reader 62. The positioning control program of the device 62 in the programming mode, as will be hereinafter explained, is performed on the basis of the signals of the motion control program.

The programming mode is one of several modes play sannich in the program area 92 reorganized in the play sequence.

In programming mode, the control unit 76 performs control so that the control signals positioning program was developed on the basis of data incremental code P - and Q-channels sent from the unit determine incremental code 68, while the management device tracking and maintenance of tracks 71 based on the control signal positioning programs and sample programs in the program area in the prescribed sequence of read audio data.

The data of the P - and Q-channels are discussed below. The signals recorded on the optical disc, is discretized with a sampling frequency of 44.1 kHz playback device from the disk, and then discretized data are combined in blocks of six samples each.

As shown in Fig.3, the format of the signals combined in block, includes for each block 85 24-bit region 81 synchronization data, 14-bit region 82 incremental code, area 83 program data consisting of 16 14-bit fields D0... D15 for the program's data area 84 parity data, consisting of 4 14-bit fields P0...P3 data parity, another area 83 program data and other area 84 data about chenost block contains 85 588 bits.

Fig. 4 shows 98 described above blocks 85, in which the relevant area or part of the data is linked and reordered with the formation of the block 89. Each block consists of partition blocks synchronisatie 86, section extension codes 87 and section data parity 88.

Data extension codes containing data of the P - and Q-channels sent from the device 68 detection of extension code in Fig.2, recorded in section 87, shown in Fig.4. Section 87 extension code is formed of 98 units from 01 to 98 producing one unit or block the extension code, as shown in Fig. 5.

Blocks 01 and 02 contain codes code (block) synchronization and represent samples S0, S1, formed the "no rules" modulated "from 8 to 14" (EFM). Block 68 detection of extension code in Fig. 2 detects synchronization codes as section 87 of incremental codes for one block. The appropriate bits of the blocks 98 01...contain channels P...W. for Example, the channel P consists of parts of S0 and S1, and P01...R98.

Still 6-channel channel data R...W was used for special purposes, such as still images or displays lyrics for karaoke. The data of the P - and Q-channels are used to control the positioning is: exclusively for recording a signal "0" in the region table of contents 91, signals "0" and "1" between the audio data and the audio data otherwise in the programme area 92, and the signal repetition "0" or "1" by a pre-determined period in the trailing region, as shown in Fig. 7. Information of the P-channel is used to determine the location of the program.

Information Q-channel is used as address information for the optical reader 62 in Fig.2 to perform the above operations provide access. As shown in Fig.6, each block incremental encoding Q-channel consists of a block of bits 111 synchronization block 112 bits of the control unit 113 bits of the address block 114 data bits and block 115 bits cyclic redundancy code (CRC).

Block 111 synchronization bits is two bits as the synchronization code. Block 112 bits control has four bits for the data records to determine the number of audio channels. Chetyrehpostovye data control block 112 are explained with reference to Fig.8.

Bit data 121 management define the 2-channel audio without predistortion, and bit data 122 management determine the 4-channel audio without predistortion. Bit data 123 management define the 2-channel audio data with n is 5 management define the program data, non-audio data, such as optical data disk or CD-ROM. Bit block 113 address consists of 4 bits for recording the control signal that defines the format of the data in block 114 bit data. The bit data block 114 is a 72-bit data, as shown in Fig.9. If the bit address is equal to "0001", then the bit data block 114 contains part 51 of the track number index part 52, part 53 minute component of the elapsed time, part 54 of the second component of the elapsed time, part 55 the number of blocks (frames) of the elapsed time, the zero part 56, part 57 minute component of absolute time, section 58 of the second component of the elapsed time, part 59 of the number of bits of the absolute time. Each section represents the 8-bit data. Note that the unit of the number of blocks recorded in the part 55 of the number of blocks of the elapsed time, and in part 59 of the number of blocks of absolute time, define the above block incremental encoding.

Part 51 of Fig.9 presents two digits in the binary-decimal (DD) view. For example, "00" indicates the initial region or area table of contents, while "01" to "99" indicate the number of programs, and "HH" indicates the ending position of SGAs is pricescope disk having recorded four programs. In part 51 of the programme are recorded data "00", the data "01" and data "AA" for the table of contents, program number 1 on the outermost track, respectively, as shown in Fig.7C. Data indicating the program number increases from "01" in accordance with the program number.

Index part 52 in Fig.9 presents in DD two digit representation. For example, "00" indicates a temporary stop or rest, while "01" to "99" to indicate units of the program, i.e. the subroutine. Program number 2 is divided into three parts, so that in the index section IX recorded "01-03", while the program number 3 is divided into two parts, and in the index section IX recorded "01-02", as shown in Fig.7D.

Part 53 minute component of the elapsed time, part 54 of the second component of elapsed time and part 55 the number of blocks elapsed time indicates the elapsed time in the program, two digits each, a total of 6 digits, as shown in Fig.9. Part 55 of the block number of the elapsed time represented by the numbers from "00" to "74". The number of blocks elapsed time is reduced in part of the P-channel between programs begins with a zero in each position is each number a music track. Part 57 minute component of absolute time, part 58 second component of elapsed time and part 59 of the number of blocks of absolute time, as shown in Fig.9, are determined by two digits each, a total of six digits, DD view. If in the field of 91 table of contents in Fig. 1 index part 52 is A0 or A1, the part 57 of the component of absolute time specifies the first or last number of the program, respectively.

Part 58 of the second component absolute time and part 59 of the number of blocks of absolute time equal to "0" regardless of whether the part 52 A0 or A1. If the index portion 52 is A2, then the absolute time at which to start the trailing region 93 (Fig.1), is recorded in the portion 57 of the minute component of absolute time, part 58 second component of elapsed time and part 59 of the number of blocks of absolute time.

In addition, in the program area 92 (Fig.1) absolute time is recorded in the portion 57 of the minute components of absolute time, part 58 second component of elapsed time and part 59 of the number of blocks of absolute time after the starting position pause the first program for each upcoming "0".

Finally, the bit section 115 alcoho redundant code (CRC code).

For programming mode information using the above data the Q-channel is determined by the block 68 incremental encoding device playback from disk and decoded, as shown in Fig.2. The controller 76 then controls the device 71 tracking and maintenance of track, signal-based decoding for performing fetch operation with optical reader 62.

Since temporal information regarding the number and content of the programs recorded in the information, using data from the Q-channel, this information is displayed on the display, such as liquid crystal, so that the elapsed playback time, the absolute time from the beginning or the number of the program on the optical disc that is being played can be displayed visually.

Recently began to be used in the playback device with the ROM, working with removable drives, while playing one desired disc from the set of disks located inside such a device. It is desirable to determine the optical disk for audiocassette, which must be played disc reproducing apparatus with removable drives. However, since si is th information these types of data may not be reproduced on the display device.

Still the name of the program can be recorded on the optical disc by recording the name of each program in the channels R to W in the form of information additional codes or using part of the main signals for writing data to the CD-ROM. However, enter the name of each program is rather time-consuming operation.

In the case of the playback device with the audio data recorded using a data format of a CD-ROM can only be decoded using the decoding devices this format and cannot be read without the use of specialized chips.

As a result, the playback device from CDs becomes expensive. Required symbol information is about 2 KB in size, leading to unproductive expenditures.

The invention

The purpose of this invention is to provide a recording medium that can record the character information, which can be read without the use of specific means of decoding, the method of reproducing from the disk device and the playback IMEI: the t of the recording medium in the form of a disk, having the software area in which recorded at least one program, the first control region, which recorded information about the absolute address of each program recorded in the program area, and the first control information, including information about absolute addressing all of the programs recorded in the program area, and the second control information, which is separated from the first control area, and in which is recorded the second control information includes information that defines the attributes of each program or the recording medium in the form of a disk.

Preferably, the first management area, program area and a second management area are in the order on the recording medium in the form of a disc from the inner edge to the outer, and the address information identifying the position of the entry of the second management area is recorded in the first management area.

Preferably the data recorded in the program area are audio data, and the attribute information managed second management area is information of at least one of the following: the name of the disk recording medium, information about the artist, razvedovatelnoy information regarding the program.

It is preferable that the data recorded in the program area are audio data, and the attribute information managed second management area is at least one of the following: the minimum level, maximum level, middle level and the maximum frequency level of the program.

In another aspect the present invention provides a method for reproducing from a disk, having a first control area, utility area in which is recorded the program, managed by the first management area and the second management region, which recorded the second management information including attribute information that defines the program recorded in the program area. The first management area has recorded therein information about absolute addressing for each program recorded in the program area, information about absolute addressing for all programs recorded in the program area, and address information that identifies the second control region. The method includes the steps of access (fetch) to the first control area for reading first management information recorded in the first upray, determining the second control region when reading the first control information during reading, and access to the initial position of the second control area based on the result of detection by the phase detection to read the second control information.

Preferably the method includes the steps of sampling program area of the disk recording medium to read the program and display the first control information read at the step of reading the first control information and second control information read at the step of reading the second control information when the reproduction of the program is read during reading program.

In another aspect the invention provides a playback device to perform the above defined operations playback.

The above and other objectives, features and advantages of this invention will be better understood from the following detailed description of preferred embodiments of the present invention illustrated by the drawings.

List of figures

Fig.1 illustrates a data region for recording data on a conventional optical disk for Ista playback from disk.

Fig. 3 illustrates data information incremental encoding for one block.

Fig. 4 illustrates a block format incremental encoding having a layered structure of the blocks 98, shown in Fig.3.

Fig. 5 illustrates a section 87 incremental coding according to Fig.4 in cross section.

Fig.6 illustrates the data structure of the Q-channel.

Fig. 7a schematically shows an optical disk having four programs recorded on his recording environment.

Fig.7b schematically shows a P-channel optical disk recording medium having recorded four on her program.

Fig.7c schematically shows a section of the track number of the Q-channel optical disk on the recording medium with four written on it programs.

Fig. 7d schematically shows the index part of the Q-channel optical disk on the recording medium with four programs.

Fig. 7E schematically shows the elapsed time of the Q-channel optical disk on the recording medium with recorded four programs.

Fig.7f schematically shows the absolute time of the Q-channel optical disk on the recording medium with recorded four programs the Q-channel of the usual tables of contents.

Fig. 10 schematically shows an optical disc as a disc recording medium in accordance with the present invention.

Fig.11 illustrates the scope of the data recorded on the optical disc.

Fig.12 shows an example of data in the first region table of contents optical audio CD for playback.

Fig. 13 shows an example of data in the second region table of contents optical audio CD for playback.

Fig.14 illustrates the format of data bits having the character data of the second region table of contents optical audio.

Fig. 15 illustrates the second control information of the optical disk for audiocassette.

Fig. 16 is a flowchart to illustrate the operation of the playback device from the disk in accordance with the present invention.

Fig. 17 is a block diagram showing the basic elements of the playback device with the disk in accordance with the present invention.

Information confirming the possibility of carrying out the invention

In accordance with the drawings, in particular Fig.10 and 11, will be described in detail an optical disk recorded with the IC 100 has a Central hole 101, as shown in Fig.10. The optical disk has a first region table of contents (TOC) as the first control area from the temporary address ANDtbefore the temporary address ANDothe first programme area 2 from the temporary address AND1before the temporary address AND2the first closing region 3, i.e., the end region of the first program area from the temporary address AND2before the temporary address AND3the second region CBT 4 as the second control area from the temporary address AND3before the temporary address AND5the second software area 5 of the provisional address AND5before the temporary addresses A6and the second end region 3 of the temporary addresses A6before the temporary address AND7temporary address ANDocorresponds to the beginning point.

The first TOC area contains the recorded first control information about the audio data recorded in the first program area 2, such as the playback time of each of the audio data, the absolute time from the position of the first audio data and the time information that defines the second TOC area 4. The first programme area 2 has many of the audio data located before the initial point of the first marginal area of the first program area 2, as the second control information, such as codes names/indetification optical disc 100, the information about the name of each program, information about artist name of each program, information about the genre of each program or additional information concerning the above-mentioned names or audio data.

The second TOC area also manages the attribute information of a program, such as the maximum level, middle level, the maximum frequency level and a minimum sound pressure level of the audio data, as well as the second control information. Second control information is controlled by the Q-channel of the second TOC area 4. The data structure of the Q-channel for each block contains a block 111 bits synchronization unit 112 of the control bits, the block 113 address bits, the block 114 data bits and bit block CRC, as previously explained and shown in Fig.6. The said block can be considered as a unit incremental encoding, which was also described above.

If the data address bits of the block 113 address bits correspond to "1", which means "0001" in binary notation, the block 114 data bits contains a section 51, program number index section 52, section 53 of the minute component of the por and, 0 section 56, section 57 minute component of absolute time, section 58 of the second component absolute time section 59 of the number of blocks of absolute time, as was described above and shown in Fig.9. The first TOC area 1, the first region 2 and the first closing region 3 recorded in this format.

It should be noted that the unit of the number of blocks recorded in section 55 of the block number of the elapsed time, and section 59 of the number of blocks of absolute time, determines the above-mentioned block incremental encoding.

Each second is divided, for example, 75 blocks extension code.

Fig. 3 shows based on the block data of the Q-channel TOC area 1. In Fig.12, only the index number IX is represented in hexadecimal, and all other numeric symbols represented in decimal.

If the address data matches "1", i.e., "0001" in binary, and the index number IX is "A0", it means that the number of the first program recorded in the minute component PMIN absolute time, and if the index number IX is "A1", it means that the last number of the program recorded in the minute component PMIN absolute time. On the other hand, if indicates AND2in Fig.11 recorded in the minute component PMIN absolute time.

Thus, it is clear that on the optical disc with the contents of CBT such as shown in Fig.12, the first seven programs are audio programs, and the execution continues until its completion 31:06 seconds: 50 unit after the temporary address ANDo. I.e. this position corresponds to the temporary address AND2in Fig.11.

On the other hand, the index number I1 from "01" to "07" corresponds to the programs from the first to the seventh, and the absolute time of each program is recorded in PMIN, PSEC, and PFR. Absolute time is specified in minutes, seconds and blocks from the temporary address ANDobefore the start of each program.

Below the block that contains the index number IX, equal, "07", contains the block address data of "5" or "0101" in binary notation. The address data of this block are the identifying data for decision-making whether or not the second TOC area 4 and the second closing region 6 shown in Fig.11. If the data recorded in the second TOC area 4, the block corresponding to "IN", recorded by the index number IX.

In Fig. 11 the starting point of the second TOC area 4 is located near Polo particular, position corresponding reduced by one minute from the A4 position towards the inner edge, and represents the starting point AND3the second TOC area 4. The starting point of A3the second TOC area 4 can be calculated from the start address AND2the first TOC area. Position corresponding to the start address of the first TOC area is summed with a fixed time of 1 minute 30 seconds, representing the starting point AND3the second TOC area 4.

In conventional optical discs is no absolute time for the first TOC area is not set. On a disk recording medium according to the present invention, the block for which the index number IX is equal to "C0" is an absolute time, determining the starting position of the first TOC area 1 shown in Fig.11. Therefore, the value of 97 minutes:22 seconds: 74 block is written to a temporary address ANDt. The end position of the first TOC area 1, which is a temporary address ANDoin Fig.11, is located at position 99 minutes: 59 seconds: 74 block. Temporary address ANDoalso specifies the absolute time is 0 minutes:0 seconds: 0 blocks.

The maximum playing time for a CD is 74 m is to be placed, that you can get from a regular CD by recording time, where not recorded any data. The area from the temporary address ANDtbefore the temporary address ANDothat is the region from position 97 minutes:22 seconds:74 block up to 99 minutes, 59 seconds:74 block located on the inside of the far side with respect to the temporary address ANDo.

If the first TOC area 1 indicates that the data should be recorded in the second TOC area 4, the optical disc playback has an area corresponding to the address bit data "6", or "0110" in binary notation. This field specifies the data recorded in the second TOC area 4. If the data recorded in the second TOC area 4, are grouped into blocks, all data different from the audio data, the number "4" or "0100" in binary notation, is used as control bits for the control bit block 112 of the second TOC area 4 shown in Fig.6.

Unit that uses a "1" or "0001" in binary notation, as address data, indicates that it is time information relating to the second program area 5 and the second trailing region, and the block for which ispolzuya about the attributes of the program the first program area.

In accordance with Fig.13, four blocks have the address code "1" as the absolute temporal components PMIN block having the index number IX, equal to "A0", and the block having the index number IX, equal to "A1", both equal to "8", the number of programs recorded in the second program area 5, is equal to one, i.e., is the eighth program, counting from the first program area 2.

As component PMIN, component PSEC absolute time and the number of blocks PFRM absolute time index number IX, equal to "A2" is equal to "64: 13: 02", it is clear that the second closing region 6 begins in positions for which the provisional value of 64 minutes:13 seconds:02 unit determines the elapsed time from the temporary address ANDo. This position corresponds to the temporary address of A6in Fig.11.

As component PMIN, component PSEC absolute time and the number of blocks PFRM absolute time index number IX, equal to "08" correspond to a time value of "33: 38:50", it is clear that the second closing region 5 starts at the position to which it is a temporary value 33 minutes 38 seconds: 50 unit determines the elapsed time from the temporary address ANDo. This position corresponds to the temporary address AND5in Fig.11. Yasenytsia with Fig.11 this optical disk for audiocassette an optical disk, in which the temporary address ANDois a reference point, a temporary address AND1corresponds to the position for which the elapsed time is 2 seconds:0 units; temporary address AND2corresponds to the position for which the elapsed time is 31 minutes:6 seconds:50 unit; a temporary address AND4corresponds to the position for which the elapsed time is 33 minutes 36 seconds: 50 unit; a temporary address AND5corresponds to the position for which the elapsed time is 33 minutes 38 seconds:50 units; temporary address (A6corresponds to the position for which the elapsed time is 64 minutes: 13 seconds:2 units; temporary address AND7corresponds to the position for which the elapsed time is 65 minutes:43 seconds:2 unit; and in which the area from 97 minutes:22 seconds:74 block up to 99 minutes, 59 seconds:74 block is located on the inner edge with respect to the temporary address ANDothis position 97 minutes:22 seconds:74 block is used as a temporary address ANDowhile the scope of this up to 99 minutes, 59 seconds:74 block to a temporary address AND7used as the first TOC area 1.

Because there is a second closing module 6 duration 1 minute 30 seconds, then Vremea Fig.14, if the address data matches "6", then the data block 114 Q-channel contains a section 11-program section attributes 12 and seven sections 13 character data. Each section contains an 8-bit code.

Section 11 program number specifies the starting block and the target block character string information about software attribute.

The most significant bit (MSB) of section 11 of the programme indicates that the block is the last block of the character string information about software attribute. As for the remaining seven bits of "1" to "99" provided for numbers corresponding to the numbers of programs in the field of CBT 1, while "0" and the number "100" to "126" serve to classify the attributes of character strings, as explained below. If the MSB is "1", "128" summed to obtain the number of programs R.

For example, the block having the program number "01" in Fig.13 indicates that a character string formed by multiple sections 13 character data represent the name of the first program in the first program area 2, and the program number of the last block of the character string represents "129". If the character string represents data up to seven character data sections 13, the software number of the character is with the program number "131" has fewer than seven characters of character data track number block with the data, not equal "03",, "131".

A number of programs to "0" and "100" to "126" determines the classification of attributes of character strings for the corresponding numbers of programs, as shown in Fig. 15.

If the program number is equal to "100", the character string of this block specifies the name of the drive or the disc title, so "DISC Title ("DISC TITLE") is displayed as shown in Fig.13.

If you see a "DISC Title", you must write scope for nine characters. As only seven characters can be recorded in each block, the block in which there are two symbol "1" is written in the block having the program number "228", as shown in Fig.13.

The reason that number becomes "228", is that the number of the program recorded in the "100" to "DISC Title" and if there is a communication unit, "1" is set for the eighth bit (i.e. 100+2=228), so that the program number block, which must be bound in the following, stanitsa equal to 228.

In the block program number "101" of the identification number is displayed, as shown in Fig.15. However, when writing a character string to be displayed "DISC 1234567" as a number that defines the disk requires is ingelow recorded in the block, with software number equal "229".

The unit has a software number equal to "102", there is written the character string representing the genre, recorded on the disc, "JAZZ" (jazz). Since this character string is less than seven characters, the program number for the unit that has this character string is not "102", "230". Therefore, if a character string has fewer than seven characters, you only need one unit for its records, and, therefore, not required blocks for communication.

Section 12 of the attributes in Fig.14 has the first 4 bits indicate character codes, and the subsequent 4 bits representing a character sequence number. I.e. the index number IX (attribute number) in Fig.14 room, presents the first hexadecimal digit is the data representing the character codes, while the next hexadecimal digit is data representing the sequential number of characters.

Data representing the character code that indicates whether the data recorded in the character section 13 of the data block in the code Japanese Industrial standard (JIS) or in code, American National standard for International Information Interchange (ASCII). Sixteen types of character codes can be defined by the data defining the codes with the data presents the numbers of tracks, if the character string is located in lot of units. Using data indicating the sequence number of characters for each character string becomes possible extension up to a maximum of 16 blocks, which is 112 characters.

In Fig. 13 shows two blocks whose number of programs represented by the number "100". Data section 12 attributes of a character string equal to "00". The block with the program number "228", with the last character string that is the second block so that the data section 12 attribute equal to "01".

Section 13 character data in Fig.14 is data to specify characters by section 13 character data using the character code specified data representing character codes section of the 12 attributes.

In Fig. 13 the corresponding symbols are represented by characters in the font Roman or Arabic numerals to facilitate understanding. Each block has seven character pieces 13 of the data.

As in the case of conventional audio CDs, data are recorded in three copies in the first TOC area on the basis of the data, and the data thus recorded three times repeated. In the second TOC area data written once, povtorayutz is a similar recording medium in accordance with the present invention begins with a step S1, on which the reading device to read from disk, such as an optical reading device, accesses the first TOC area 1, as shown in Fig.2. The program then proceeds to step S2.

At step S2 played first TOC area 1. The program then proceeds to step S3, where the reproduced content is stored in the first storage device (RAM 33, Fig.17). The program then proceeds to step S4.

At step S4 on the basis of the reproduced content, the first TOC area 1 is determined whether there are any blocks in the index section 52 shown in Fig.9 recorded "IN". If not, the program then proceeds to step S5 for playback from an optical disc in normal mode.

If in step S4 it is determined that such blocks there are, the program determines that the disk is present in the second TOC area, and proceeds to step S6. At step S6, the reader reads the temporary address 33:36:50, as represented by the minute component MIN elapsed time second component SEC of elapsed time and number of block FRM elapsed time for a block whose index section 52 recorded data "IN" (see Fig.12). The program then proceeds to stage the implementation of the temporary address AND4is a temporary address, which was one minute from the temporary address AND3. At step S7 is set in advance in time, i.e., in this case 1 minute is subtracted from the temporary address AND4(see Fig.11), thereby determining the temporary address AND3that is the starting position of the second TOC area 4.

The program then proceeds to step S8, at which the reader selects (reads) the initial position of the second TOC area 4 to play the second TOC area 4.

The program then proceeds to step S9. At this stage the contents of the second TOC area 4 is stored in the second storage device (RAM 34, Fig. 17), different from the first storage device. The program then proceeds to step S10.

At step S10, the reader gains access to the initial position of the first program stored in the first program area 2 in Fig. 11, and stops waiting for a command input. The program then proceeds to step S11.

At step S11 enter the playback mode and the program of the first program area 2 begins to play. The program then proceeds to step S12.

At step S12 plays second management the e in the second storage device, displayed on the display device.

Fig. 17 illustrates a playback device with a drive to implement the above method of reproduction from the optical disk on which writing/formatting were performed as described above.

The playback device includes an optical reading device 22 as a reader and a controller 35. Optical reading device 22 provides access to the first TOC area 1 as in the first management area in the optical audio disc is shown in Fig.10 and 11, and the initial positions of the second TOC area 4 as in the second control area for reading first management information recorded in the first management area and the second management information recorded in the second TOC area 4. The controller 35 determines the starting position of the second TOC area 4, based on the address information to specify the second TOC area 4 in the first control area, a few optical reading unit 22, and controls the read operation of the second management area in the optical scanning device 22, based on the detection results.

According Fig.17, the output optical cityviews is ignal connected to the tracking device management 25 and the digital signal processing unit 26. The output tracking control 25 is connected to the digital signal processing unit 26, the controller 35, the servo focus 27, the servo tracking 28, the servo device accompaniment tracks 29 and servo rotation 30. The outputs of the servo focus 27, servo tracking 28, servo accompaniment tracks 29 are connected to the optical scanning device 22.

The output of servo rotation 30 is connected to the motor 23 to drive. The output of the digital signal processing equipment 26 is connected to the servo rotation 30.

In the digital signal processing unit 26, the output of the block decoder 31 is connected to the output 38 and the block allocation of incremental code 32, the output of which is connected to the controller 35.

The output of controller 35 is connected to the tracking device management 25, the first RAM 33, the second RAM 34 and the display 37. The outputs of the first RAM 33, the second RAM 34 and actuator 36 is connected to the controller 35.

The optical reader 22 reads the signals recorded on the optical disk 21, and sends the received signals to the processing device RF signal 24. The optical reader 22, a reading area, pokazanno is and accompaniment tracks 29.

The device processing the RF signal 24 converts the RF signals received from the optical reader device 22, in the two signals at the same time detektywa signals, focus error signals and tracking maintenance, and sends these signals error on device tracking control 25. The device processing the RF signal 24 also allocates a portion of the data of the formed duplex signals and supplies these pieces of data to the digital signal processing unit 26.

The follow-up control device 25 generates signals for tracking control on the basis of error signals, tracking focus, FE, signals of the tracking error tracking signal and the tracking error tracking tracks from the device processing the RF signal 24, the first control signal read from the digital signal processing equipment 26 and the second control signal read from the controller 35, and transmits control signals for the actuators, respectively, to the servo focus 27, the servo tracking 28, the servo support the carriage 29 to control the reading carried out by the optical reading unit 22 by means of these servos. Control signals for the actuators of the front of the output signals in the two signals and sends the detected components of the clock signals in the digital signal processing unit 26. The digital signal processing unit 26 generates control signals for the servo rotation on the basis of the clock signals from the tracking device management 25 and reference clock signals and control signals of the servo rotation servo 30 of rotation to control the rotation of the motor 23 to drive.

The decoding unit 31 decodes the data portion of the formed duplex signals modulated in accordance with the EPM, and transmits the decoded data to the audio output 38 and the block selection 32 added code. Block allocation of incremental code 32 detects data extension code, i.e., the data of the P-channel and Q-channel from the decoded data received from the decoding device 31. These data are P-channel and Q-channel are transferred to the controller 35 for converting the first control signals read and supplied to the tracking device management 25.

The controller 35 selects the time information recorded in the TOC area 1 shown in Fig.11, on the basis of the signal of the servo control device servo control 25 and on the basis of data of the P-channel and Q-channel from the block allocation of incremental code 32, and sends this temporal information in asylum this information into the second RAM 34.

Below is illustrated the operation of selecting the second control information. In the brackets of the processing steps illustrated in Fig.16.

The optical reader 22 reads the TOC area 1 (step S1), and reproduces the first TOC area 1 (step S2). The controller 35 detects the data of the Q-channel from the received RF signal. The controller 35 selects the data determined by the address ANDtAND1AND2AND4and a6shown on Fig. 11, and sends the data in the first RAM 33 (step S3).

The controller 35 determines from this data whether the second TOC area 4 (step S4), and sends the second read control signals to the tracking device management 25 and causes the control signal forming actuators, which must be issued from the follow-up control device 25 to the optical reader 22 selected temporary address AND4as shown in Fig.2 (step S6).

The controller 35 also subtracts one minute from time, determining a temporary address AND4and determines the starting position of the second TOC area 4, i.e. a temporary address AND3in Fig.11 (step S7).

The controller 35 also controls the operation of the optical scanning ustinow address AND3the optical disk 21. The optical reader 22 reads the temporary address And from the optical disk 21 for reproducing data from the second TOC area 4 (step S8).

The controller 35 determines the second control information recorded in the second TOC area 4, data from the Q-channel received from the block allocation of incremental code 32, based on the RF signals, the resulting playback operations, and to send the received information to the second RAM 34 (step S9).

The controller 35 also selects necessary data from the first RAM 33 or the second RAM 34 in accordance with an input command from the control unit 36 and sends the data to the display 37.

Executive unit 36 executes the input command to select the desired data that should be displayed: the name of the optical disk 21, an identification number, a program name, artist name, genre (style) of the program and information about the maximum, average, maximum frequency and minimum levels in addition to the elapsed time of the current program, and sends the input command to the controller 35. The display 37 displays the information selected by the sensor 36, based on the supplied controller 35 of the data.

In the described t, poluchaetsya subtract one minute from an arbitrary position in the second TOC area 4, which is the time specified temporary address AND4.

This, however, is not limited by this invention. I.e. the result obtained and described above, can be achieved by an arbitrary change of the relative position of temporary addresses AND4and temporary addresses AND3and perform arithmetic operations that depend on their relative position.

Although temporary address AND4used in the above technical implementation to determine the temporary address AND3this again is not limited by the present invention and a result similar to the one described above can be achieved by using, for example, the initial position of the first closing region, the initial position of the second program area or the starting position of the second closing region, i.e., temporary addresses AND2, A5or A6as the reference position.

1. How to play from a disc, having first management area, utility area in which is recorded the program, managed by the first management area and the second management region, matoroana in the program area, the first management area has recorded therein information about absolute addressing of each program recorded in the program area, information about absolute addressing all of the programs recorded in the program area, and address information that identifies the second control region containing the steps of: sampling the first control area for reading first management information recorded in the first management region; determine the initial position of the second control area on the basis of the time information that specifies the second control region and which is contained in the first management information that is read during reading of the first control information; and sampling the initial position of the second control area on the basis of results of determination on the definition stage to read the second management information in which the data recorded in the program area are audio data, and in which the attribute information managed second management area is at least one of the group, which includes information about the name of the recording medium in the form of a disc, information about the artist, information about the name of the programs, information about macindoe message.

2. How to play from a disc, having first management area, utility area in which is recorded the program, managed by the first management area and the second management region, which recorded the second management information including attribute information that defines the program recorded in the program area, the first management area has recorded therein information about absolute addressing of each program recorded in the program area, information about absolute addressing all of the programs recorded in the program area, and address information that identifies the second control region containing the steps: sampling the first control area for reading first management information recorded in the first management region; determine the initial position of the second control area on the basis of the time information that specifies the second control region and which is contained in the first management information that is read during reading of the first control information; selecting the starting position of the second control area on the basis of results of determination on the definition stage to read the second control information; you shall reviewsa information read on stage reading the first control information and second control information read at the step of reading the second control information when the reproduction of the program is read in operation during reading of the program in which the data recorded in the program area are audio data, and in which the attribute information managed second management area is at least one of the group, which includes information about the name of the recording medium in the form of a disc, information about the artist, information about the name of the programs, information about the types of programs, the number of the identification code of the recording medium in the form of a disc and program-related informational message.

3. How to play from a disc, having first management area, utility area in which is recorded the program, managed by the first management area and the second management region, which recorded the second management information including attribute information that defines the program recorded in the program area, the first management area has recorded therein information about absolute addressing of each program recorded in progney information determining the second control region containing the steps of: sampling the first control area for reading first management information recorded in the first management region; determine the initial position of the second control area on the basis of the time information that specifies the second control region and which is contained in the first management information that is read during reading of the first control information; selecting the starting position of the second control area on the basis of results of determination on the definition stage to read the second control information; sampling program area of the recording medium in the form of a disk for reading programs; and displaying the first control information, read on stage reading the first control information and second control information read at the step of reading the second control information when the reproduction of the program is read in operation during reading of the program in which the data recorded in the program area are audio data in which the attribute information, managed by the second management area is at least one of the group, which includes the minimum is trojstvo playback from disk, having the first management area, utility area in which is recorded the program, managed by the first management area and the second management region, which recorded the second management information including attribute information that defines the program recorded in the program area, the first management area has recorded therein information about absolute addressing of each program recorded in the program area, information about absolute addressing all of the programs recorded in the program area, and address information indicating the position of the record of the second control area that contains the tool for reading the sample first control area for reading the first control information, recorded in the first management area, and for selecting the starting position of the second management area to read the second control information; means for determining the initial position of the second control area on the basis of the time information that specifies the second control region and which is contained in the first management information read by the medium reading, and management tool to select the appropriate initial position of the second panel, the testing area, are audio data in which the attribute information, managed by the second management area is at least one of the group, which includes information about the name of the recording medium in the form of a disc, information about the artist, information about the name of the programs, information about the types of programs, number of the identification code of the recording medium in the form of a disc and program-related informational message.

5. The playback device from a disk, having a first control area, utility area in which is recorded the program, managed by the first management area and the second management region, which recorded the second management information including attribute information that defines the program recorded in the program area, the first management area has recorded therein information about absolute addressing of each program recorded in the program area, information about absolute addressing all of the programs recorded in the program area, and address information indicating the position of the record of the second control area, containing means for reading the sample first control area for reading the first control and the minute to read the second control information; the means of determining the initial position of the second control area on the basis of the time information that specifies the second control region and which is contained in the first management information read means for reading; a management tool to select the appropriate starting position for the second control area and control the reading of the second control information and displaying device in which a management tool designed to manage the operations of a sample of program area read program means for reading and displaying the display device, the first management information managed by the first management area and the second management information managed by the second management area, during playback of the program and the data, recorded in the program area are audio data in which the attribute information, managed by the second management area is at least one of the group, which includes information about the name of the recording medium in the form of a disc, information about the artist, information about the name of the programs, information about the types of programs, number of the identification code of the recording medium in the form of having the first control region, software area in which is recorded the program, managed by the first management area and the second management region, which recorded the second management information including attribute information that defines the program recorded in the program area, the first management area has recorded therein information about absolute addressing of each program recorded in the program area, information about absolute addressing all of the programs recorded in the program area, and address information indicating the position of the record of the second control area that contains the tool for reading the sample first control area for reading the first control information, recorded in the first management area, and for selecting the starting position of the second management area to read the second control information; means for determining the initial position of the second control area on the basis of the time information that specifies the second control region and which is contained in the first management information read means for reading; a management tool to select the appropriate starting position for the second control area and control cityandregion operations sample of program area read program means for reading and displaying the display device, the first control information, managed the first management area and the second management information managed by the second management area, when playing a program in which data is recorded in the program area are audio data in which the attribute information, managed by the second management area is at least one of the group, which includes the minimum level, maximum level, middle level and the maximum frequency level of the program.

7. The playback device from a disk, having a first control area, utility area in which is recorded the program, managed by the first management area and the second management region, which recorded the second management information including attribute information that defines the program recorded in the program area, the first management area has recorded therein information about absolute addressing of each program recorded in the program area, information about absolute addressing all of the programs recorded in the program area, and address information indicating the position of the record of the second control area, containing means for reading the sample first upravlyauschy the initial position of the second management area to read the second control information; the means of determining the initial position of the second control area on the basis of the time information that specifies the second control region and which is contained in the first management information read by the medium reading, and management tool to select the appropriate starting position for the second control area and control the reading of the second management information in which the first control area unit recorded data extension code Q channel, where each data block includes various index number IX, represented in hexadecimal entries for indexing programs recorded in the program area, and in addition in which to indicate whether the data recorded in the second management area in the recorded index number IX, corresponding to "IN", which is written to the detecting means detecting.

8. The playback device from the disk under item 7, characterized in that the address of the first control area and a second management area is defined in units of absolute time minutes: seconds: blocks from the addresses of the starting time, and the control unit provides the installation start address of the second control area as financial p is the number of "IN" in hexadecimal entries.

 

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The invention relates to a method of producing perspire formula H(CFR1CF2)nCH2OH (I) wherein R1is F or CF3when n=1, and R1is F, when n=2, including the interaction of methanol with tetrafluoroethylene or HEXAFLUOROPROPYLENE in the presence of a source of free radicals

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The invention relates to the field of optical instrumentation and can be used in the systems of recording and reading optical information

The invention relates to the field of optical instrumentation and can be used in the systems of recording and reading optical information

The invention relates to the field of optical instrumentation and can be used in the systems of recording and reading optical information

FIELD: optical discs.

SUBSTANCE: sector header on optical disc has first and second headers, recorded in a way to deflect from track middle in opposite directions, and have address areas, wherein address signals are recorded and synchronous signals areas for detecting address signals. Playback signal generator includes photo-detector, having radial couples of detecting elements. Playback signal includes total signals V1 or V2 of radial couples of detecting elements, total signal RF_sum of detecting elements, counter-phase signal RF_pp of detecting elements, from optical signal reflected from disc. Header area detector generates header area signal, containing header area from playback signal received from playback signal generator. Level detectors for first and second synchronous signals receive playback signal from playback signal generator and perform detection of value of first synchronous signal in first header and value of second synchronous signal in second header. Balance calculator calculates balance value of first and second synchronous signals. Determining of error of slant is performed in accordance to balance value.

EFFECT: higher efficiency.

2 cl, 15 dwg

FIELD: optical record/play devices.

SUBSTANCE: data area on disc is divided into sectors. Each sector header has first header and second header, recorded in a way to deflect from track middle in opposite directions. Said first and second headers have address areas, wherein sectors address signals and synchronous signals areas are recorded, wherein synchronous signals for detecting address signals are recorded. First value of synchronous clock signal is detected from first header and is a Lvfo1. second value of synchronous clock signal is detected from second header and is a Lvfo3. relation of first value Lvfo1 to second value Lvfo3 is a previously set limited value.

EFFECT: higher precision of error detection.

7 cl, 15 dwg

FIELD: optical data carriers.

SUBSTANCE: optical data carrier has at least two layers, each of which is a substrate with recording film, on which optically discernible code relief is formed with information elements readable via laser radiation, which contain elements with optical limiting property. Method for manufacture of optical multilayer data carrier includes manufacture of at least two layers, each of which has optically discernible code relief with laser radiation readable information elements, which are formed of substance, having property of optical limiting. Method for multilayer optical recording of data, in which information is recorded by forming and moving pulses of laser radiation flow along surface of recording film in formed tracks, filled with substance, having optical limiting property, or components for synthesis of substance, having property of optical limiting. Method for reading from optical multilayer data carrier, including forming of laser radiation flow, its focusing at read layer with optically discernible code relief with information elements, containing substance, having property of optical limiting, modulation of light signal reflected from code relief by frequency and amplitude.

EFFECT: higher efficiency.

4 cl, 3 dwg

FIELD: optical data carriers.

SUBSTANCE: optical data carrier has at least two layers, each of which is a substrate with recording film, on which optically discernible code relief is formed with information elements readable via laser radiation, which contain elements with optical limiting property. Method for manufacture of optical multilayer data carrier includes manufacture of at least two layers, each of which has optically discernible code relief with laser radiation readable information elements, which are formed of substance, having property of optical limiting. Method for multilayer optical recording of data, in which information is recorded by forming and moving pulses of laser radiation flow along surface of recording film in formed tracks, filled with substance, having optical limiting property, or components for synthesis of substance, having property of optical limiting. Method for reading from optical multilayer data carrier, including forming of laser radiation flow, its focusing at read layer with optically discernible code relief with information elements, containing substance, having property of optical limiting, modulation of light signal reflected from code relief by frequency and amplitude.

EFFECT: higher efficiency.

4 cl, 3 dwg

FIELD: optical data carriers.

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EFFECT: higher efficiency.

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FIELD: data carriers.

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EFFECT: higher efficiency.

3 cl, 21 dwg

FIELD: data carriers.

SUBSTANCE: method includes forming a mark and space with use of signal, containing record template, erasing template, having multiple pulses, and cooling pulse, connecting templates of recording and erasing.

EFFECT: higher efficiency.

3 cl, 21 dwg

FIELD: data carriers.

SUBSTANCE: in optical data carrier, including track, including multiple recesses, formed on basis of first data being subject to recording, and platforms, formed between adjacent recesses, these recesses are recorded with deformation on basis of second data. First and second data are synthesized and played for realization of sound playback with broad frequency range. Also, first data are recorded with possible playback by means of common disc player. Playback of first data is controlled by second data for protection of recorded data.

EFFECT: higher efficiency.

6 cl, 44 dwg

FIELD: data carriers.

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EFFECT: higher efficiency.

6 cl, 44 dwg

FIELD: data carriers.

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EFFECT: higher efficiency.

6 cl, 44 dwg

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