Optical disc and device for optical disc

FIELD: optical engineering.

SUBSTANCE: position information us recorded in guiding grooves of optical disc. Signal sync group achieved when reading position info from disc out differs from signal sync group of disc of other type which operates at different mode of formatting and recording. Density of recording of optical disc differs from density of recording of other type disc. Sync group has high level value at preset period or at period being higher than preset one followed by value at lower level for preset period or for period being bigger than preset one which speaks of standard or high density of recording.

EFFECT: higher possibility of identification.

18 cl, 35 dwg

 

BACKGROUND of the INVENTION

1. The technical field

The present invention relates to the optical disk and the optical disk. In particular, the present invention is described optical disks, which use different modes of formatting and/or write and who have a different combination of the synchronization signal obtained by reading the positional information, which is recorded in the guide grooves, the irradiated spot light. In addition, the device for optical disk in accordance with the present invention identifies whether the optical disk drive installed in it, by the optical disk standard density or optical disk of high density, by determining the differences in the combination of synchronization signals.

2. Description of the prior art

Recently, increased demand for recording media having a large capacity. To increase recording density of an optical disc are such ways, as a reduction of the track pitch, the reduction of the minimum length of bits of recorded information.

When the optical disk is a standard CD-ROM, for example, optical drive write-once (CD-R) and an optical disk rewritable (CD-RW)in accordance with ISO/IEC13490-1, for them t is the train you want to increase the capacity of the write to them it was possible to record more data.

When the optical disk with the opportunity for write-once optical disk rewritable be recorded with high capacity and installed in the device for optical disk for recording on the optical disc or reproducing signal from the optical disk, the device for optical disk perform the following operations. You want a device for recording optical disk quickly and easily identify whether the optical disk by the optical disk with a large capacity recording (below called the optical disk high-density) or optical disk having a standard recording capacity (below called optical disk standard density), modes of formatting and/or records which differ from each other. If the device is not able to quickly and easily identify the optical disk, it can not perform the operation of recording and playback, appropriate for each type of optical disk. For example, if the device for optical disk cannot identify whether the optical disk by the optical disk high-density prior to demodulation of the data recorded on the optical disk, the device for optical disk cannot determine whether or not the COI is lesofat processing, specifically designed for the optical disc of high density, and to use hardware designed exclusively for the optical disk of high density. In this case, you want the device for optical disk was doing a complicated processing for determining the type of the optical disk. As regards the optical disk on which you have not yet recorded any data (i.e. a blank disk), to identify its type using the recorded data, it is impossible. Therefore, it is necessary to clean the drive were present information, using which you can make the identification of the type of clean disk.

BRIEF description of the INVENTION

To solve the above problems of the prior art the present invention is directed to an optical disk, against which you can simply identify different systems of formatting and/or writing an optical disc of the same type from an optical disc of a different type, and a device for such an optical disk.

On an optical disc in accordance with the present invention can execute the write operation, when the positional information is recorded in the guide grooves, the irradiated spot light. In the optical disk singlegroup obtained by reading out the positional information is compiled Thu is it different from singlegroup another optical disk, which has a different mode of formatting and/or writing.

In addition, on the optical disk can be write operation, and it contains the guide grooves intended for the direction of the spot light, which are recorded positional information. Positional information is recorded by the oscillation of the guide grooves by using a particular modulation mode, and this positional information contains a specific synchronization signal comprising a combination of synchronization that is different from the combination of synchronization synchronization signal included in the positional information recorded on the optical disk of another type having a lower recording density than the density recording optical disc with data, the modulation mode.

Device for an optical disc, in accordance with the present invention, uses several types of optical disks, each of which can execute the write operation, each of which includes positional information recorded in the guide grooves, the irradiated light spot, and each of which includes a combination of synchronization, which is obtained by reading out the positional information and which is different from the combination of synchronization other optical disk in accordance with the modes of their formatting and/or writing, containing the e: reader positional information, designed to read positional information and the device identification that identifies the type of the optical disk by detecting singlegroup signal received at the reader position information. In addition, the device for optical disk includes a device for position determination, designed to determine the position irradiated with spot light, the signal received at the reader position information, and the device determines the position specifies the position irradiated with spot light, on the basis of the identification device identification.

In addition, the device for optical disc scans optical discs of the first and second types of light for recording data on optical discs of the first and second type and/or play with them. On the optical disks of the first and second type may execute the write operation, and they are formed with guide grooves intended for the direction of the spot light, which are recorded positional information. Positional information recorded on optical discs by oscillation of the guide grooves using a particular modulation mode. Positional information recorded on an optical disc of the first type has a specific synchronization signal, include the s singlegroup, different from singlegroup of the synchronization signal included in the positional information recorded on an optical disc of the second type, which has a lower density than the density recording optical disc of the first type. The device for optical disk includes: a playback device designed to decode the positional information recorded by vibrations, and the device identification that identifies the optical disk of the first and second types by detecting combinations of synchronization included in the optical information read from optical discs of the first and second types.

In the present invention, for example, deviations made during the recording of positional information in the guide grooves, the irradiated spot light. Component oscillations extracted from each element of the oscillations to obtain singlegroup signal fluctuations. In this case, the optical disk high-density optical disk standard density are manufactured in such a way that their singlegroup signal fluctuations differ from each other. When, for example, the signal produced by reading the positional information of the optical disk, is a signal with two-phase modulation, the minimum bit time channel signal "T", singlegroup forms is regulated so what is the combination of the duration of 3T or more, and is also set so that the value of the DSV is equal to "0".

The device for optical disk, in which is mounted an optical disk obtained as described above, determines singlegroup optical disk and identifies whether the optical disk by the optical disk high-density optical disk standard density, on the basis of the determination combination of synchronization. On the basis of the identification on the optical disk is recorded signal or a signal reproduced from the optical disk.

BRIEF DESCRIPTION of DRAWINGS

Figa-1B depict schematic structures of an optical disk;

2 is a diagram representing the structure of the frame of the ATIP information;

figa-3E is a diagram depicting the ATIP information and the two-phase signal obtained from the optical disk standard density;

figa-4B is a diagram representing the relationship between two-phase signal with a signal deviation;

figa-5E is a diagram depicting the ATIP information and the two-phase signal obtained from the optical disk of high density;

figa-6E is a diagram depicting the ATIP information and the other two-phase signal obtained from the optical disk of high density;

figa-7E is a diagram depicting the ATIP information and another two-phase si is cash, obtained from the optical disk of high density;

figa-8B is a diagram depicting the ATIP information and another two-phase signal obtained from the optical disk of high density;

Fig.9 is a diagram depicting the structure of the frame of the ATIP information;

figure 10 is a diagram depicting another structure of the frame of the ATIP information;

11 is a diagram depicting another structure of the frame of the ATIP information;

Fig diagram depicting the structure of an optical disk;

Fig diagram depicting the structure of the ATIP decoder.

DESCRIPTION of the PREFERRED VARIANT of the INCARNATION

Hereinafter the present invention will be described in detail with reference to the drawings. On figa and 1B presents the schema, each of which partially depicts the structure of an optical disc with the possibility of write-once or rewritable optical disc (CD-R or CD-RW) 10 that meets the standard for CDs. As shown in figa, an optical disk formed with a pre-made grooves PG on its surface, which must be irradiated with a laser beam. Pre-made grooves PG represent the guiding groove is irradiated with spot light of the laser beam. Each part of the surface between the two adjacent to each other by grooves defined as the space LA. As shown in figv, the side surface to which each pre-made grooves formed with some hesitation (i.e. twisting) in the form of a sine wave. From the side surfaces formed with the oscillation component is allocated vibrations, designed to receive the signal SWB fluctuations. The signal SWB vibration has a frequency modulation. In the signal SWB information along the time axis indicates the positional information, i.e. it is encoded random variable position on the optical disk and the recommended value of the optimum power of the laser beam for recording.

The signal SWB is created in such a way that its average frequency is set at a value of, for example, 22.05 kHz, when the optical disk 10 is rotated from the standard speed (i.e. with a linear speed of 1.2 to 1.4 m/s). One sector signal absolute time pre-made grooves ATIP, which is used as time information composed in such a way that it coincides with one sector of data (up to 2352 bytes) after the recording of this signal. Data is recorded on the optical disk so that the sector of the ATIP information is synchronized with the sector data.

Figure 2 presents a diagram depicting scenes of the ATIP information. The first four bits contain the SYNC signal sync. "Minutes", "seconds" and "frames", which together indicate the absolute time of the optical disk, expressed in two digits BCD code (8 bits). In addition, the added cyclic code with isbutton the STU CRC size of 14 bits. In the result, the ATIP information is composed of 42 bits in one frame. Information such as the recommended value of the optimum laser power for recording, recorded so that it contains the information of time, which is usually not used.

On figa-3E presents diagrams depicting the configuration of the SYNC signal sync information ATIP (below called singlegroup information ATIP), which is produced using an optical disk recording capacity which is not enlarged. The ATIP information depicted on figa subjected to two-phase marking modulation so that we obtain a combination of bits of the channel depicted in FIGU or 3D. In particular, the SYNC signal sync information ATIP is formed in such a way that it is a combination of bits of a channel corresponding to the bit combination "1101000", as shown in figv, when the bit of the channel, directly before the next signal SYNC information of the ATIP synchronization equal to "0". In this case, a two-phase signal DBP, having the shape depicted in figs, is formed as a result of modulation of two-phase marking. In contrast, the SYNC signal of the ATIP synchronization is made in such a way that it has a bit pattern of the channel "00010111", as shown in fig.3D, when the bit of the channel immediately preceding the signal SINGH ATIP synchronization equal to "1". IN this case, is a two-phase signal DBP, having the shape depicted in fige. After forming the two-phase signal DBP, obtained as described above, this two-phase signal DFS is subjected to frequency modulation, as shown in figa and 4B for receiving the signal SWB. For example, when a two-phase signal DBP depicted on figa, has a high level "H", a two-phase signal DBP, is subjected to frequency modulation in such a way that it has a frequency 23,05 kHz, as shown in figv. When a two-phase signal DFS depicted on figa, takes the low level "L", a two-phase signal DFS is subjected to frequency modulation so that it has a frequency 21,05 kHz. The result is a signal SWB having a center frequency of 22.05 kHz.

In the optical disk high-density recording capacity which is increased because the format mode and/or recording of this optical disk is different from the optical disk standard capacity, singlegroup him ATIP made so that it is different from the above figv and 3D. Thus, even if the optical disk is a blank disk, which is not recorded any data, it becomes possible to easily identify whether the optical disk by the optical disk standard density or optical disk high-density recording capacity which is increased by receiving the signal SWB for RA is learning singlegroup ATIP information.

As singlegroup ATIP information produced by the optical disk of high density, used in combination, it is difficult to Express the sequence data "minutes", "seconds", "personnel" and "ICC". In this variant embodiment, the information on time is subjected to two-phase mark modulation and determines the minimum interval between bits of the channel as "T", and the signal after the Biphase mark modulation group has a duration "T" or "2T". So as singlegroup ATIP information produced by the optical disk high-density group is used the duration of 3T or more. In addition, singlegroup preferably has a good balance of DC. In this preferred singlegroup the value of the two-phase mark modulated signal with a high level "H" is defined as "1", and when he is in the process of oscillations takes the low level "L"as "-1", and the moments when variations take the high level "H" and when variations take the low level "L" for two-phase mark modulated signal, uniformly distributed, and the value of the digital sum DSV, that is, the integrated value between the high-level signal "H"is equal to "1"and a low level signal "L"is equal to "0", close to "0".

Singlegroup ATIP information satisfying the above t is ebouaney, that is, having a good balance of direct current, can be obtained as follows. The group, in which oscillations of duration 3T have polarity opposite to the fluctuations of duration 3T, formed at the beginning, middle or end of the ATIP synchronization signal.

On figa-5E presents the schema, each of which represents a case in which the combination, in which oscillations of duration 3T, with reverse polarity to fluctuations 3T formed in the initial part of the ATIP synchronization signal. As in the case presented on figa-3E, when the ATIP information depicted on figa subjected to two-phase mark modulation, the ATIP information is a combination of bits of the channel depicted in FIGU. Based on a combination of bits of the channel is formed of a two-phase signal DBP, having the shape depicted in figs. When setting the values of the two-phase signal DBP, when she has the high level "H"is equal to "1", and its value at a low level "L"equal to "-1", shape fluctuations of the ATIP information is high level "H" during the period 4T and the low level "L" during the period 4T. As a result the value of the digital sum of the "DSV" of high signal and low signal level becomes equal to "0", which provides a good balance DC. On figv and 5C shows a combination of bits of the channel and the two-phase signal DBP in case the, when the bit of the channel immediately preceding the SYNC signal of the ATIP synchronization equal to "0". For the case when the bits of the channel immediately preceding the SYNC signal of the ATIP synchronization equal to "1", the bit combination of the channel and a bi-phase signal DBP depicted on fig.5D and 5E.

Similarly, on figa-6E depicts graphs, each of which represents a case where the group, in which oscillations of duration 3T, have polarity, reverse the waveforms of duration 3T, located in the middle part of the ATIP synchronization signal. On figa-7E depicts graphs, each of which represents a case where the combination in which the waveforms of duration 3T, with the polarity reverse to the shape fluctuations of duration 3T, formed at the end of the ATIP synchronization signal.

Alternatively, as shown in figa-8E, it is also possible to use a combination in which the shape of the oscillation duration 4T has a polarity that is opposite to the shape of the oscillation duration 4T, as singlegroup ATIP information. In this case also the value of the digital sum of the "DSV" between high level and low level becomes equal to "0", thus achieving a good balance DC.

The way in which each of the intervals "minutes", "seconds" and "frames" refers to "two bits of the binary-decimal code, the indication is limited to the s to the position of "99 minutes 59 seconds and 74 of the frame. There are times when information may indicate a position beyond the value "99 minutes and 59 seconds and 74 of the frame that is required for an optical disc of high density, having a large recording capacity. To meet such requirements, as shown, for example, figure 9, 28 bits are located in the area of physical frame number PFN and 10 bits are placed in the CRC field. Thus, it becomes possible to specify an absolute position on the optical disk when using vibrations generated therein, even if the optical disk of high density.

In addition, it is also possible, for example, to allocate 24 bits for the number of the physical frame and to allocate the remaining 14 bits to the field of error correction code ECC. In this case, is formed of an optical disk of high density having a certain singlegroup ATIP information that is different from singlegroup ATIP information of the optical disk standard density, when using the error correction code. Using this method it becomes possible to identify whether the optical disk is an optical disk of high density or standard optical disk by detecting singlegroup ATIP information. At the same time it is also possible to determine whether the optical disc signal CRC or ECC.

In the above case, one positional information indicated by the ATIP information in one frame. Alternatively, it is also possible to specify one piece of positional information using the ATIP information in multiple frames. Figure 11 presents a diagram depicting the case when one piece of positional information is specified by the ATIP information in the two frames. At least one of singlegroup either the first frame or the second frame is formed so that it has a combination of different singlegroup optical disc standard density. At the same time the first frame is singlegroup different from singlegroup the second frame (except reverse polarity). As singlegroup optical disk of high density that is different from singlegroup optical disc standard density, uses a combination in which fluctuations of duration 3T have polarity opposite to the fluctuations of duration 3T, as shown in figa-5E-7A-7E, or a combination, in which oscillations of duration 4T have polarity opposite to the oscillation duration 4T, as shown in figa-8E.

In this case, as shown in figure 11, singlegroup in the first frame is formed so that it has a combination of bits of the channel as a sequence of "11101000" and at the same time the signal SYN is anizatio ATIP in the second frame is made thus it has a combination of bits of a channel in a sequence of "11110000". The combination of bits of the channel as a sequence of "11110000" is different from combinations of bits channel "11101000" or "00010111" synchronization signal of the ATIP information of the optical disk standard density. Based on this optical disk can be identified as an optical disk of high density. In addition, since the first frame has singlegroup different from singlegroup the second frame may be determined that one piece of positional information indicated by the information M1, M2 in the first and second frames, respectively.

As described above, the optical disk of high density is formed so that it has singlegroup ATIP information, different from the optical disk standard density. Thus, it is possible to easily identify whether the optical disk by the optical disk high-density optical disk standard density. In addition, the optical disk of high density is formed so that it has a combination that is different from the optical disk standard density, and position on the optical disk of high density can be expanded and can be specified bits allocated to the ATIP synchronization signal and then using a method different from the method is that the absolute time is indicated by "minute", "seconds" and "frames", which are respectively denoted, for example, two bits of the binary-decimal code, for example, a method that uses dvuletny binary code.

Next, the structure of the device for optical disk drive in which you installed the optical disk 10 will be described with reference to Fig. The optical disk 10 is rotated at a certain speed with section 22 of the axial engine. Section 22 of the axial motor is driven so that it rotates the optical disk 10 at a certain speed, using signal SSD drive axis, which is served from section 23 of the axial drive motor, which will be described below.

The optical disc 10 is irradiated with a laser beam with controlled light intensity, which is emitted by the device 30 of the optical reading device 20 of the optical disk. The laser beam reflected by the optical disk 10 and is fed into the section of the photodetector (not shown) in the device 30 of the optical readout. Section of the photodetector is made on the basis of the divided light detector or similar device, and the result is a voltage signal corresponding to the level of the reflected light through photoelectric conversion, and converting the current - voltage, and then the resulting voltage signal is supplied to the section 32 of the radio frequency amplifier.

S is s 32 of the radio frequency amplifier produces a signal SRF, signal SFE focusing errors and signal STE errors tracking track and signal SWB fluctuations on the basis of the voltage signal received from the device 30 optical reader. Signal SRF read signal SRF error tracking track and signal SFE focusing errors obtained in section 32 of the radio frequency amplification, is fed to the section 33 controls the clock generation frequency/servo. The signal SWB is supplied to the decoder 34 ATIP.

Section 33 controls the clock generation frequency/servo produces a signal SFC management focus, which is designed to control the objective lens (not shown) of the device 30 optical reader, on the basis of the supplied signal SFE focusing errors so that the laser beam focused on the recording layer of the optical disk 10. Then the resulting signal SFC management focus is served on the device 35 of the actuator. At the same time section 33 controls the clock generation frequency/servo produces a signal STC management tracking track, which is designed to control the objective lens device 30 optical reader, on the basis of the supplied signal SFE error tracking tracks so that the laser beam is directed to the Central position of the desired track.

The device 35 of the actuator produces a signal SFD focus on the basis of the supplied signal SFC management focus. Simultaneously, the device 35 of the actuator produces a signal STD drive tracking paths on the basis of the signal STC management tracking tracks. Developed signal SFD focus actuator and the signal STD drive track track serves on the Executive mechanism (not shown) of the device 30 of the optical readout. On the basis of the signal SFD focus actuator and signal STD drive tracking tracks the position of the objective lens is controlled in such a way that it focuses the laser beam in a Central position of the desired track.

Section 33 controls the clock generation frequency/servo produces asymmetric compensation and binarization signal SRF reading to convert it into a digital signal, which is used as a signal DRF data reading. The resulting signal DRF read data is supplied to a section 40 of data processing. At the same time section 33 controls the clock generation frequency/servo produces a signal CKRF clock frequency that is synchronous with the digital signal obtained by conversion. The resulting signal CKRF clock frequencies are also given in section 40 of the data.

In addition, section 33 controls the clock generation frequency/servo produces a signal SSC control is of movement, which is designed to move the device 30 of the optical reader in the radial direction of the optical disk 10 provided to prevent the direction of the laser beam beyond the position defined as the management of the tracking tracks. Section 36 of the movement drives the shift motor (not shown) on the basis of the signal SSC motion control for operation of the device 30 optical reader so that it moves in the radial direction of the optical disk 10.

The decoder 34 ATIP, which signal SWB fluctuations, has a combination presented on Fig. The signal SWB deviation is fed to the bandpass filter 341 in the decoder 34 ATIP. The bandpass filter 341 limits the bandwidth of the signal SWB so that the oscillation is selected from the signal SWB. The resulting signal SWB is supplied in section 342 of the generation of oscillations.

Section 342 of the generation of oscillations binarytree signal SWB. The signal DWB, which is binaryboy signal fluctuations, served in section 343 of detecting vibrations.

Section 343 of detecting fluctuations demodulates the signal DWB to obtain a two-phase signal DBP. At the same time section 343 of the detection oscillation produces a signal SCWR clock frequency that is synchronous with the two-phase signal. Received in the district is the result of a two-phase signal DBP and signal SCWR clock frequency supplied to section 344 of the decoding of the address.

Section 344 decoding addresses demodulates a two-phase signal DBP using signal SCWR clock frequency to generate the signal DAD ATIP information. In addition, section 344 decoding addresses detects the combination of the synchronization signal, the resulting signal DAD of the synchronization signal, the resulting signal DAD ATIP information to produce signal FSY detecting the ATIP synchronization. The signal DAD ATIP information is fed to the control section 50. The signal FSY detecting the ATIP synchronization and signal SCWR clock frequency that is synchronous with the two-phase signal DBP, served on section 23 of the drive axis of the engine.

Section 40 of the data processing performs EFM demodulation in the signal DRF data reading. At the same time section 40 data processing performs error correction using the process of reverse peremeshivanija, Solomon code cross-alternate reading (CIRC), etc. using the RAM 41. Section 40 of data processing also performs error correction using the processing by the decryption pseudo-random sequences, the error correction code and the like, the data Signal after the error correction is written in the RAM 42, which is located in section 40 of data and functions as a buffer memory device, and then fed the form of signal RD reproduced data to an external computer or similar device through the interface 43.

Section 40 of the data processing selects sub code from a signal which has been subjected to EFM demodulation to receive the signal DSQ. The signal DSQ is supplied to the control section 50. At the same time section 40 of the data detect signal FSZ synchronization frame signal after EFM modulation and delivers detektirovanii signal FSZ synchronization frame section 23 of the drive axis of the engine.

Section 23 of the axial drive motor uses the signal FSY detecting the ATIP synchronization and signal SCWR clock frequency that is synchronous with the two-phase signal DBP, which are served from the decoder 34 ATIP, when the signal is recorded on the optical disk 10. In contrast, section 23 of the axial drive motor uses the signal FSZ synchronization frame supplied from the section 40 of the processing data to generate a signal SSDP drive axis, which is designed to rotate the optical disc 10 with a desired speed when reproduces the signal recorded on the optical disk 10. Signal SSP actuator axis, generated in section 23 of the drive motor axis, is fed into the section 22 of the engine axis, allowing the optical disk 10 rotates at a desired speed.

In addition, when signal WD of the write data is supplied to the section 40 of the data from the external computer via the interface 43, section 40 of the data temporarily stores the signal D of the data written in the RAM 42, which is located in it. In addition, section 40 reads the data signal WD of the write data, encodes it in a specific format sector and adds the error correction code for error correction signal WD of the write data. Section 40 of data processing also performs processing such as CIRC encoding and EFM modulation for signal DW account and sends a signal DW entries in section 37 of the compensation account.

Section 37 of the compensation recording produces a signal LDA drive laser on the basis of the supplied signal DW account, and sends a signal LDA drive laser to the laser diode device 30 optical reader. Section 37 of the compensation recording produces a correction signal LDA drive laser on the basis of the signal KM compensation power supplied from the section 50 of the control, which will be described below. The correction signal LDA drive laser is performed in accordance with characteristics of the recording level of the optical disk 10, the shape of the spot of the laser beam, the linear speed at which recording is in progress, and the like. As a result, the power of the laser beam coming from the laser diode unit 31 optical reader, optimized, and a signal is recorded on the optical disk.

The ROM 51 is connected to section 50 of the control. The control section 50 controls the operation of device 20 optical thesis is based on the program, designed to control the operation, which is stored in the ROM 51. For example, the control section 50 identifies whether or not the optical disk mounted in the optical disc device, an optical disk high-density optical disk standard density for singlegroup signal DAD ATIP information, which is supplied from the decoder 34 ATIP. In addition, section 50 control signals HUNDRED on section 33 controls the clock generation frequency/servo and the signal of the control section 40 of the data processing on the basis of the identification of the form of a disk, and signal DSZ generated in section 40 of the data or on the basis of the position recording and playback, which is indicated by the signal DAD ATIP information supplied from the decoder 34 ATIP. As a result, data is recorded or reproduced, respectively, the optical disk standard density or optical disk of high density. In addition, the control section 50 produces a signal PC power compensation on the basis of information about the size of the installed power of the recording laser measured by the signal DAD ATIP information, and sends a signal PC power compensation in section 37 of the compensation account. The control section 50 also sends a signal CTC control section 32 of the radio frequency amplification. After receiving the signal V. the control section 50 of the control section 32 of the radio frequency amplification performs management, consisting in switching on and off of the laser diode device 30 optical reader, and to reduce the noise of the laser and distortion of the signal read imposes a high frequency on the laser beam. When the signal recorded on the optical disk 10 shown in figure 1, using a device 20 for an optical disc, is the detection of oscillations to determine singlegroup information ATIP using decoder 34 ATIP. Singlegroup ATIP information is determined whether the optical disk by the optical disk high-density optical disk standard density. On the basis of the result of this identification, the control section 50 determines the position of the optical disk from the ATIP information, starting, therefore, to record the signal with the desired item. On the basis of the identification section 50 of the control signal of the control section 40 of the data. After receiving the signal of the control section 40 performs data processing the processing of encoding, for example, to correct errors and produces this encoding in accordance with the type of the optical disk. In addition, section 50 of the control signals CTA and CTC control section 33 controls the clock generation frequency/servo and section 32 of the radio frequency amplification, respectively, to increase the signal servo and is ilenia radio frequency in accordance with the type of the optical disk.

When the signal recorded on the optical disk 10 is reproduced, the rotation of the optical disk 10 is controlled on the basis of the read signal SRF. In section 50 controls the position from which the signal should be reproduced may be determined on the basis of the signal DSZ of the sub-code generated based on the signal SRF reading. Using the information relating to the position at which the signal should be reproduced, can be read required data. Alternatively, in section 50 control it is also possible to read the signal from the desired position by identifying the type of the optical disk and determine the position of the read signal based on the ATIP information and by controlling each constituent element on the basis of the identification of the type of the optical disk and the position of the read signal, as in the above case, when recording is performed.

The combination of the frame of the ATIP information containing singlegroup and ECC, described above, has been described only for the purpose of example and does not limit the present invention. In addition, in the above embodiment, the embodiment identifies whether or not the given optical disc is an optical disc of high density or standard optical disk, formatting and/or account from which icause from each other. It is obvious that the identification of the optical disk is not limited by the capacity of its entries.

1. Optical disk with recording capability, in which the positional information recorded in the guide grooves, the irradiated spot of light, in which singlegroup signal obtained by reading the positional information of the optical disc differs from singlegroup an optical disc of a different type, operating in a different mode, formatting and/or recording, and the recording density optical disc is different from the recording density of an optical disc of a different type, and singlegroup contains the value of the high level at a given or more of the specified period, followed by a value at a low level at the preset or more of the specified period, which indicates a standard or high density record.

2. The optical disk according to claim 1, characterized in that singlegroup is set so that the value of digital sum is equal to 0.

3. The optical disk according to claim 2, characterized in that an optical disk high-density recording and singlegroup has any one of the combinations of the form 3T+3T+1T+1T, 1T+3T+3T+1T, 1T+1T+3T+3T and 4T+4T.

4. The optical disk according to claim 1, characterized in that the positional information is expressed in a form appropriate combination of singlegroup.

5. The optical disk according to claim 1, characterized in that the optical disk is a high-density recording and positional information synchronized with the multiple frames based on singlegroup.

6. The optical disk is writable, containing the guide grooves intended for the direction of the spot light, in which the recorded positional information in which positional information is recorded with the fluctuations of the guide grooves in a modulation mode, and this positional information is defined in the synchronization signal, including singlegroup different from singlegroup of the synchronization signal of another optical disc, the recording density of the optical disk is different from the recording density of an optical disc of a different type and singlegroup contains the value of the high level at a given or more of the specified period, followed by a value at a low level at the preset or more of the specified period, which indicates the standard or high density recording.

7. The optical disk according to claim 6, wherein the another optical disk formed on the basis of a standard CD-ROM.

8. The optical disk according to claim 6, characterized in that the positional information recorded in the guide grooves with the use of signal oscillations, obtained using additional frequency modulation signal, positional information, which is dwuhfazno-modulated.

9. The optical disk according to claim 6, characterized in that singlegroup has any one of the following is combinaci: 3T+3T+1T+1T, 1T+3T+3T+1T, 1T+1T+3T+3T and 4T+4T.

10. Device for an optical disc that uses multiple types of optical disks, each of which is configured to record each of which includes positional information recorded in its guide groove is irradiated with spot light, each of which includes singlegroup, which is obtained by reading out the positional information and formed so that it differs from singlegroup optical disks of other types in accordance with their modes of formatting and/or records containing the reader positional information intended for reading positional information, and device identification, intended to identify the type of the optical disk by detecting singlegroup signal, received in the reader positional information, and the recording density optical disc is different from the recording density of an optical disc of a different type and singlegroup contains the value of the high level at a given or more of the specified period, followed by a value at a low level at the preset or more of the specified period, which indicates a standard or high density recording.

11. The device for optical disk according to claim 10, characterized in that the device identifitsirovany made with possibly the awn identify the optical disc as an optical disc with a higher recording density, than the specified density when singlegroup represents 3T+3T+1T+1T, 1T+3T+3T+1T, 1T+1T+3T+3T and 4T+4T.

12. The device for optical disk according to claim 10, characterized in that it contains a device for position determination, designed to determine the position irradiated with spot light, the signal received by the reader device position information and on the basis of the identification device identification.

13. The device for optical disk according to claim 10, characterized in that the reproduced signal is processed based on the result of identifying the type of the optical disk.

14. The device for optical disk drive used for scanning the optical disk of the first and second type using the spot light for recording and/or reproducing data on the optical disks of the first or of the second type or with them, and optical discs of the first and the second type is made with the possibility of recording and formed with guide grooves intended for the direction of the spot light, which are recorded positional information and the positional information recorded on optical disks using variations of the guide grooves in a modulation mode and this positional information is recorded on an optical disc of the first type so that it has the synchronization signal, kiuchumi singlegroup, different from singlegroup of the synchronization signal included in the positional information recorded on an optical disc of the second type containing the playback device designed to decode the positional information recorded by vibrations, and the device identification that identifies the optical disk of the first and of the second type by recognition singlegroup included in the optical information read from optical discs of the first and second type, and the recording density optical disc of the first type is different from the recording density of an optical disc of the second type and singlegroup contains the value of the high level at a given or more of the specified period, followed by a value at a low level on a given or more of the specified period, which indicates a standard or high density recording.

15. The device for optical disk according to 14, characterized in that the second optical disk is formed on the basis of a standard compact disk.

16. The device for optical disk according to 14, wherein the positional information recorded in the guide grooves by using a signal of the oscillation produced by an additional frequency modulation signal of positional information, which is dwuhfazno modulated.

17. The device is in the optical disk 14, characterized in that singlegroup has any of the combinations: 3T+3T+1T+1T, 1T+3T+3T+1T, 1T+1T+3T+3T and 4T+4T.



 

Same patents:

FIELD: engineering of disk cartridges for recording and reproducing information.

SUBSTANCE: disk cartridge is made by positioning optic disk in the body, recording surface of which contains circular zones: internal zone, holding zone, transfer zone, information recording zone and edge zone. Identification information of disk cartridge is recorded in transfer zone of optical disk so, that it is discernible from outside the body.

EFFECT: it is possible for user to find out, what content is recorded in disk cartridge without reproducing said content.

3 cl, 10 dwg

FIELD: optical data carriers.

SUBSTANCE: in accordance to method, recording signal is generated, template for erasing which has predetermined pulse signal, high level of which is higher than erasing power level, and low level of which is lower than erasing power level. In variants, power level of first pulse of erasing template is low level of erasing template, and power level of last pulse of erasing template is high level, or power level of first pulse of erasing template is low level of erasing template, and power level of last pulse of erasing template is low level, or power level of first pulse of erasing template is high level of erasing template, and power level of last pulse of erasing template is high level, or power level of first pulse of erasing template is high level of erasing template, and power level of last pulse of erasing template is low level.

EFFECT: prevented distortion of mark shape, improved recording/reproduction characteristics.

8 cl, 30 dwg

FIELD: optical data carriers.

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EFFECT: higher efficiency.

8 cl, 12 dwg

FIELD: data carriers.

SUBSTANCE: data carrier has formatted information for data and manufacturer information, containing identification information for recording device, which forms or modifies data on data carrier, and normalizes information, related to modification of data on carrier. Manufacturer information has individual format, incompatible to other manufacturers.

EFFECT: higher efficiency.

7 cl, 8 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.

3 cl, 21 dwg

FIELD: data carriers.

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EFFECT: higher efficiency.

3 cl, 21 dwg

The invention relates to the optical disc containing the recording area of the data encoded in the optical labels with a recording density

The invention relates to the field of data storage on CD-ROM and can be used for cleaning the internal cavity of the device to read information from a CD-ROM, including an optical head used for reading data from different types of CDs, including computer and video CDs

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.

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EFFECT: higher efficiency.

3 cl, 21 dwg

FIELD: data carriers.

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EFFECT: higher efficiency.

6 cl, 44 dwg

FIELD: data carriers.

SUBSTANCE: data carrier has formatted information for data and manufacturer information, containing identification information for recording device, which forms or modifies data on data carrier, and normalizes information, related to modification of data on carrier. Manufacturer information has individual format, incompatible to other manufacturers.

EFFECT: higher efficiency.

7 cl, 8 dwg

FIELD: optical data carriers.

SUBSTANCE: device has tracks, each of which is comprises multiple recesses, formed on basis of first data, meant for recording, and areas between recesses. Multiple recesses are displaced from track center on basis of second data, at the same time recesses cross central position of track with given periodicity. First data may be recorded analogically to compact disk data. Second data may be separated from signal of track tracking error. Second data may be used for copy protection in relation to first data, while amount of first data, which can be recorded on carrier, does not decrease when recording second data, and as a result of recesses displacement range being set within limits of preset value in range, wherein no track tracking displacement occurs, first data can be played back by existing players to provide for compatibility of playback.

EFFECT: higher efficiency.

8 cl, 12 dwg

FIELD: optical data carriers.

SUBSTANCE: in accordance to method, recording signal is generated, template for erasing which has predetermined pulse signal, high level of which is higher than erasing power level, and low level of which is lower than erasing power level. In variants, power level of first pulse of erasing template is low level of erasing template, and power level of last pulse of erasing template is high level, or power level of first pulse of erasing template is low level of erasing template, and power level of last pulse of erasing template is low level, or power level of first pulse of erasing template is high level of erasing template, and power level of last pulse of erasing template is high level, or power level of first pulse of erasing template is high level of erasing template, and power level of last pulse of erasing template is low level.

EFFECT: prevented distortion of mark shape, improved recording/reproduction characteristics.

8 cl, 30 dwg

FIELD: engineering of disk cartridges for recording and reproducing information.

SUBSTANCE: disk cartridge is made by positioning optic disk in the body, recording surface of which contains circular zones: internal zone, holding zone, transfer zone, information recording zone and edge zone. Identification information of disk cartridge is recorded in transfer zone of optical disk so, that it is discernible from outside the body.

EFFECT: it is possible for user to find out, what content is recorded in disk cartridge without reproducing said content.

3 cl, 10 dwg

FIELD: optical engineering.

SUBSTANCE: position information us recorded in guiding grooves of optical disc. Signal sync group achieved when reading position info from disc out differs from signal sync group of disc of other type which operates at different mode of formatting and recording. Density of recording of optical disc differs from density of recording of other type disc. Sync group has high level value at preset period or at period being higher than preset one followed by value at lower level for preset period or for period being bigger than preset one which speaks of standard or high density of recording.

EFFECT: higher possibility of identification.

18 cl, 35 dwg

FIELD: optical information carriers.

SUBSTANCE: when data are overwritten on recordable and/or readable optical disk, method includes performing linking before physical cluster, from which overwriting process starts. In accordance to method, when overwriting is performed at portion of optical disk, on which information was recorded, or when overwriting is performed on portion including a defective area, linking is performed before portion, where overwriting is to be performed, or behind defective area, thus realizing reliable recording and reproduction of data. Invention makes it possible to perform reliable recording and reproduction of data by realization of linking in case when recording is performed after data, continuously recorded on high density optical disk, or in case, when overwriting is performed on high density optical disk with a defective area, and by recording a protective interval 3 at appropriate position, meaning end data of record.

EFFECT: increased efficiency.

4 cl, 7 dwg

FIELD: engineering of optical substances for storing information.

SUBSTANCE: optical substance for storing information has input area, user data area and output area, while data, indicating maximal and/or minimal recording speeds, maximal and minimal recording speeds or compatible recording speeds, are recorded in re-recordable area of at least one of two zones - input zone or output zone.

EFFECT: reliable recording of data onto disk, which is not capable of reaching due recording speed because of manufacturing conditions, at optimal speed with consideration of previously recorded data about speed of operation.

4 cl, 5 dwg

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