Method and device for encoding information, method and apparatus for decoding information carrier for recording information

 

The invention relates to the field of radio engineering, in particular to the coding information to enhance the format of the encoded signals. The technical result - improving the accuracy of coding and the extension of functionality by coding of audio signals with a high compression ratio without a significant deterioration of psychoacoustic audio quality. When the codes of the old and new standards recorded on the same recording medium, it is desirable that signals an old standard could be reproduced by the playback devices corresponding to the old standard, and at the same time, both types of signals could be reproduced by a playback device corresponding to the new standard, to avoid degrading the signal quality. To do this, if multichannel signals recorded frames whose size cannot be adjusted, the second encoding scheme encodes the signals of the channel being played by the playback device corresponding to the old standard, while the first coding scheme encodes the signals of the channel being played by the playback device corresponding to the old standard, a smaller number of bits than the maximum number, the cat sequence, this encoded by the second encoding scheme in the areas of skip recording frame stipulated by the encoding performed by the first encoding scheme. 5 C. and 35 C.p. f-crystals, 31 ill.

Description text in facsimile form (see graphic part)n

Claims

1. Device for coding information containing the means of the conversion of the signals of the channels, characterized in that it further comprises first encoding scheme to encode the signal part of the multiple channels in accordance with the first encoding method to generate a first code sequence, the second encoding scheme for encoding the remaining portion of the multiple channels by a second encoding method to generate a second code sequence, and the means of signal channels connected to the first and second encoding schemes, connected to the means of forming a code sequence, and is intended to organize the first code sequences in each set of frames, and each frame has a fixed size, the first encoding method is different from the second encoding method.

2. place a code sequence, contains information for making decisions about the basic bit rate for encoding.

3. Device for encoding information under item 1, characterized in that the conversion tool signals of channels intended for the separation of signals from the time domain into blocks conversion preset duration of time as the building blocks for signal conversion channels in the spectral components, the second encoding scheme is designed to provide an encoding signal components, means for forming a code sequence is intended for the formation of the second code sequences of the encoded spectral signal components.

4. Device for encoding information on p. 3, characterized in that the conversion tool signals of channels intended for separation of the signals of the channels of the time part on the units conversion is shorter than the length of the conversion unit in said second encoding method, as blocks for signal conversion channels in the spectral signal components, the second encoding scheme is intended to provide coding mentioned spectral signal sostavlyayushchaya of coded spectral signal components.

5. Device for encoding information on p. 3, characterized in that the means of encoding the signal components of the second coding scheme provides the encoding of the spectral signal components of the conversion unit according to the multitude of frames.

6. Device for encoding information under item 1, characterized in that the second coding scheme provides the coding of the signals of the channels by encoding variable length.

7. Device for encoding information under item 1, characterized in that the conversion tool signals of channels intended for separation of the signals of the channels on the tonal components having concentrated energy, and netonline components, the first encoding scheme is designed to encode the tonal components, the second encoding scheme is designed to encode naturalnych components, means for forming a code sequence is intended to form a second code sequence of the encoded tone and naturalnych components.

8. Device for encoding information under item 1, characterized in that the designated bit rate per channel for the first coding scheme is different from the assigned soon is Eesa fact, the conversion tool is designed to separate signal channels time domain into blocks conversion preset duration of time as the building blocks for signal conversion channels in the spectral signal components, the first encoding scheme is designed to encode the data obtained by quantization of the spectral signal components by encoding fixed length from a single block encoding preset length to another, and means forming a code sequence is intended for the formation of the first mentioned code sequences of the encoded spectral signal components.

10. Device for encoding information under item 9, characterized in that the means of encoding the signal components of the first coding scheme also provides encoding the number of blocks of the encoding.

11. Device for encoding information under item 1, characterized in that the means of forming a code sequence reverses the direction of the first code sequence, arranged in one or more frames of a fixed size relative to the direction of uporyadochenie is the ordered information determining the presence of the second code sequence.

13. The device for decoding information containing means signal conversion channels, characterized in that it further comprises means of sharing code sequences to separate the coded information formed by first and second code sequences, the first and the second code sequence, and the first code sequence are signals of a part of a set of channels encoded in accordance with the first encoding method for each of one or more frames of a fixed size, and the second code sequence are the signals of other channels that are encoded in accordance with a second encoding method, the first decoding means, connected to the sharing tool and designed for decoding the first code sequence by the first method of decoding associated with the first coding method, to generate a first decoded signal, and the second decoding means connected to the means of separation and designed to decode the selected second code POS is the generation of the second decoded signal, this conversion tool signal channels connected to the first and second decoding means.

14. The device for decoding information on p. 13, wherein each of the first code sequence is a code sequence containing information for making decisions about the core, the bit rate for encoding.

15. The device for decoding information on p. 13, wherein the second decoding means is intended for decoding the second code sequences obtained by the signal conversion channels time domain into spectral signal components, and encoding the received spectral components from a single block conversion preset duration of time to another for recovery of spectral components, and the conversion tool is designed to convert the spectral signal components of the signals in the time domain blocks conversion and synthesis tool, connected to the conversion tool, designed for the synthesis of the resulting signals.

16. The device for decoding information under item 15, wherein the first sravanam signals of channels time domain into spectral signal components, and encoding the resulting spectral signal components from one processing block is shorter than the length of the conversion unit in the above-mentioned second method of encoding to another to restore the spectral signal components, the conversion tool is designed to convert the spectral signal components, the synthesis tool connected to the tool signal conversion channels, intended for the synthesis of the resulting signals.

17. The device for decoding information under item 15, wherein the second decoding means signal components decodes the second code sequence, in which the spectral signal components of the transform block is encoded by multiple frames.

18. The device for decoding information on p. 13, wherein the second decoding means decodes the second code sequence, in which the signals of channels decoded by variable length coding.

19. The device for decoding information on p. 13, characterized in that the means of separation is intended to highlight the tonal costal is telestai, including coded tonal components having concentrated energy, and netonline components, the first decoding means is designed to decode the selected encoded tonal components, the second decoding means is designed to decode naturalnych coded components and the synthesis tool components, connected to the first decoding means tonal components and a second decoding means naturalnych components and designed for the synthesis of the decoded tonal and naturalnych components.

20. The device for decoding information on p. 13, wherein the first decoding means is designed to decode the first mentioned sequence for recovery of spectral signal components, and referred to the first code sequence obtained by converting the signal of the time domain in blocks conversion preset duration of time in the spectral signal components and coding quantum data mentioned spectral signal components by encoding fixed length blocks encoding the signal components of the signals in the time domain block-based transformation and synthesis tool, connected to the conversion tool, designed for the synthesis of signals of the time domain on the basis of the conversion blocks.

21. The device for decoding information on p. 20, wherein the first decoding means also provides decoding the encoded number of blocks of encoding to perform decoding based on a specified number of blocks of the encoding.

22. The device for decoding information on p. 13, characterized in that the said means of sharing code sequence selects the first code sequence and the second code sequence from the coded information, which referred to the first code sequence are ordered in the reverse direction relative to the direction of the ordering of the second code sequence.

23. The device for decoding information on p. 13, characterized in that the said means of sharing code sequences highlights information that identifies the presence of the second code sequence, referred to encrypted information, and second decoding means decodes the second code sequence on the basis of said information, determining otlichayushiesya fact, what the above means of sharing code sequences determines the amount of data of the first code sequence of the encoded information, and information that identifies the presence of the second code sequence, and produce of the said coded information, if said value data is less than the preset value.

25. The device for decoding information on p. 13, characterized in that the said means of sharing code sequences determines the amount of data of the first code sequence of the encoded information, and referred to the second code sequence extracted from the aforementioned coded information and decode, if said value data is less than the preset value.

26. Device for encoding information, characterized in that it contains the first encoding means for encoding signals of a part of a set of channels in accordance with the first encoding method to generate a first code sequence, a second encoding means for encoding the remaining portion of the multiple channels by a second encoding method to generate the second koromo encoding means, intended for ordering at least part of the first and second code sequences in a single frame, with the first encoding method is an encoding method different from the second encoding method.

27. The decoding device information, characterized in that it contains means of sharing code sequences to separate the coded information formed by first and second code sequences, the first code sequence and the second code sequence, and the first code sequence are signals of a part of a set of channels encoded in accordance with the first coding method, in the frame, and the second code sequence are the signals of other channels that are encoded in accordance with a second encoding method, the first decoding means connected to the means of sharing code sequences and used for decoding the first code sequence by the first method of decoding, associated with the first coding method, to generate a first decoded signal and the second tool decodedbytearray second code sequence via the second method of decoding, associated with a second coding method, to generate a second decoded signal.

28. The device for decoding information containing means signal conversion channels, characterized in that it further comprises means of sharing code sequences to separate the coded information formed by first and second code sequences, the first code sequence and the second code sequence, and the first code sequence are signals of a part of a set of channels encoded in accordance with the first encoding method for each of one or more frames of a fixed size, and the second code sequence are the signals of other channels that are encoded in accordance with a second encoding method, the first decoding means, connected to the means of sharing code sequences and used for decoding the first code sequence by the first method of decoding associated with the first coding method, to generate a first decoded signal and the second decoding means, the connection is th code sequence via the second method of decoding, associated with a second coding method, to generate a second decoded signal, while the first method of decoding is a method of decoding that is different from the second method, decoding, and conversion of signal channels connected to the first and second decoding means.

29. The device for decoding information on p. 28, wherein each of the first code sequence is a code sequence containing information for making decisions about the core, the bit rate for encoding.

30. The device for decoding information on p. 28, wherein the first decoding means is designed to decode mentioned second code sequences in the spectral signal components, means for converting the signals of the channels is designed to convert the spectral signal components of the signals in the time domain blocks conversion preset time duration and means of synthesis, connected to the conversion tool and designed for the synthesis of the mentioned units converting to the time domain to obtain the signal s of the decoding means decodes the first code mentioned of the sequence to obtain a spectral signal components, converts mentioned spectral signal components in the blocks of transform time domain signals preset time duration shorter than the blocks conversion in said second encoding method, and synthesizes blocks conversion of time domain signals to obtain signals of channels time domain.

32. The device for decoding information on p. 30, characterized in that the said second decoding means decodes the aforementioned second code sequence for forming the spectral signal components, and referred to the second code sequence are enclosed in a set of frames.

33. The device for decoding information on p. 28, wherein the second decoding means decodes the aforementioned second code sequences, in which the signals of the channels encoded by variable length coding.

34. The device for decoding information on p. 28, characterized in that the means of separation is intended to highlight the tonal components and naturalnych components of the above-mentioned second code sequence, the first tree the decoding means is designed to decode the selected encoded naturalnych components and the synthesis tool components connected to the decoding means of tonal components and a means of decoding naturalnych components and designed for the synthesis of the decoded tonal and naturalnych components.

35. The device for decoding information on p. 28, wherein the first decoding means is intended for decoding the first code mentioned of the sequence to restore the spectral signal components, and referred to the first code sequence obtained by converting the signals of channels time domain in blocks conversion preset duration in the spectral signal components and coding the quantized data mentioned spectral signal components of the blocks of a preset length, the conversion tool is designed to convert the spectral signal components of the signals in the time domain on the basis of the conversion blocks and the synthesis tool is intended for the synthesis of signals of the time domain on the basis of the conversion blocks.

36. The device for decoding information on p. 28, wherein the first decoding means also provides the th block coding.

37. The device for decoding information on p. 28, characterized in that the said means of sharing code sequence selects the first code sequence and the second code sequence from the coded information, which referred to the first code sequence are ordered in the reverse direction relative to the direction of the ordering of the second code sequence.

38. The device for decoding information on p. 28, characterized in that the said means of sharing code sequences highlights information that identifies the presence of the second code sequence, referred to encrypted information, and second decoding means decodes the second code sequence on the basis of said information identifying the presence of the abovementioned second code sequence.

39. The device for decoding information on p. 28, characterized in that the said means of sharing code sequences determines the amount of data of the first code sequence of the encoded information, and information that identifies the presence of the second code sequence, extracted from the above-mentioned madirovalo to decode the information on p. 28, characterized in that the said means of sharing code sequences determines the amount of data of the first code sequence of the encoded information, and referred to the second code sequence extracted from the aforementioned coded information and decode, if said value data is less than the preset value.

 

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