US5548574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for high-speed recording compressed digital audio data with two dimensional blocks and its compressing parameters
Assignee: Sony Corp
•
Filing: 1994-03-03
•
Granted: 1996-08-20
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Expires: 2014-03-03
Abstract
Abstract Methods and apparatus for recording, reproducing, transmitting and/or receiving compressed data, and a recording medium therefor, utilize frequency dividing filters for dividing the frequency range of digital signals into plural frequency bands, orthogonal transform circuits for producing signal components in plural two-dimensional blocks along time and frequency, an adaptive bit allocation and encoding circuit for quantizing and compressing the information for each two-dimensional block and a bit allocation and calculating circuit. When recording the information together with information compressing parameters for each two-dimensional block, the information compressing parameters for at least two two-dimensional blocks are recorded collectively to avoid complicacy in the structure of the sampling frequency signal generating circuits or the like otherwise caused in case of providing plural sampling frequencies as well as to prevent an increase in hardware scale.
Inventors
- 👤 Osamu Shimoyoshi
- 👤 Kenzo Akagiri
- 👤 Hiroshi Suzuki
- 👤 Makoto Mitsuno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:44
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/00007; H; H03; H03M; H03M7/00; H03M7/30; G10; G10L; G10L19/00; G10L19/02; G10L19/0204; G10L19/0208; G10L19/022; G11B20/10; G11B20/10527; H03G; H03G9/00; H03G9/02; H03G9/025; H04; H04B; H04B1/00; H04B1/66; H04B1/665
Claims Analysis
Total Claims: 130
Claim 1
Independent Claim
144 words
An apparatus for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are separated into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency so as to be recorded or transmitted along with information compressing parameters for each of the two-dimensional blocks along time and frequency, and/or in which the information-compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the information compressing parameters for each of the two-dimensional blocks along time and frequency, wherein the improvement comprises: means for grouping for use in common the information compressing parameters for at least two of said two-dimensional blocks, prior to at least one of recording, transmitting, reproducing and receiving.
Claim 2
Independent Claim
144 words
An apparatus for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are separated into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency so as to be recorded or transmitted along with information compressing parameters for each of the two-dimensional blocks along time and frequency, and/or in which the information-compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the information compressing parameters for each of the two-dimensional blocks along time and frequency, wherein the improvement comprises: means for grouping for use in common the information compressing parameters for at least two of said two-dimensional blocks, prior to at least one of recording, transmitting, reproducing and receiving.
Claim 3
Dependent Claim
24 words
The apparatus as claimed in claim 1, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in the time domain.
Claim 4
Dependent Claim
29 words
The apparatus as claimed in claim 2, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in and neighboring each other in the time domain.
Claim 5
Dependent Claim
24 words
The apparatus as claimed in claim 1, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in the frequency domain.
Claim 6
Dependent Claim
29 words
The apparatus as claimed in claim 4, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in and neighboring each other in the frequency domain.
Claim 7
Independent Claim
34 words
The apparatus as claimed in claims 2 or 4, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in at least one of the frequency domain and the time domain.
Claim 8
Dependent Claim
37 words
The apparatus as claimed in claim 1, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in and neighboring each other on at least one of the frequency domain and the time domain.
Claim 9
Independent Claim
146 words
An apparatus having modes for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are separated into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency so as to be recorded or transmitted along with information compressing parameters for each of the two-dimensional blocks along time and frequency, and/or in which the information-compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the information compressing parameters for each of the two-dimensional blocks along time and frequency, wherein the improvement comprises: means for changing the number of plural information bit rates, with the number of the information compressing parameters being changed based upon an information bit rate for a selected mode.
Claim 10
Independent Claim
146 words
An apparatus having modes for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are separated into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency so as to be recorded or transmitted along with information compressing parameters for each of the two-dimensional blocks along time and frequency, and/or in which the information-compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the information compressing parameters for each of the two-dimensional blocks along time and frequency, wherein the improvement comprises: means for changing the number of plural information bit rates, with the number of the information compressing parameters being changed based upon an information bit rate for a selected mode.
Claim 11
Dependent Claim
29 words
The apparatus as claimed in claim 8, further comprising: means for increasing the number of information-compressing parameters in response to a higher information bit rate for a selected mode.
Claim 12
Dependent Claim
29 words
The apparatus as claimed in claim 8, further comprising: means for decreasing the number of information-compressing parameters in response to a lower information bit rate for a selected mode.
Claim 13
Dependent Claim
29 words
The apparatus as claimed in claim 8, further comprising: means for changing the number of the information-compressing parameters in proportion to the information bit rates for the selected modes.
Claim 14
Dependent Claim
42 words
The apparatus as claimed in claim 11, wherein the information-compressing parameters of at least two two-dimensional blocks are arrayed in at least one of the time scale and the frequency scale to achieve a reduction in the number of the information-compressing parameters.
Claim 15
Dependent Claim
43 words
The apparatus as claimed in claim 11, wherein the information-compressing parameters of at least two neighboring two-dimensional blocks are arrayed in at least one of the time scale and the frequency scale to achieve a reduction in the number of the information-compressing parameters.
Claim 16
Dependent Claim
25 words
The apparatus as claimed in claim 11, wherein the information compressing parameters become larger in number for those modes having a lower information bit rate.
Claim 17
Dependent Claim
24 words
The apparatus as claimed in claim 14, wherein the information compressing parameters increase in inverse proportion to the information bit rate for each mode.
Claim 18
Dependent Claim
33 words
The apparatus as claimed in claim 15, further comprising: means for producing at least one two-dimensional block which is at least one of a block-floating block and a quantization noise generation suppressing block.
Claim 19
Independent Claim
40 words
The apparatus as claimed in claims 7 or 16 wherein input signals are audio signals, further comprising: means for setting the frequency width of at least a majority of the quantization noise suppressing blocks to be broader towards higher frequencies.
Claim 20
Independent Claim
111 words
The apparatus as claimed in claims 7 or 16, further comprising: means for dividing the digital signals into plural frequency components, the plural frequency components divided into plural bands to produce signal components in the two-dimensional blocks along time and frequency, and for orthogonally transforming for each band each block to produce coefficient data; and means for converting signals in the plural bands in the frequency domain into signals in the time domain by inverse orthogonally transforming, for each of the plural bands in the frequency domain, the signals in each the plural bands; and means for synthesizing such inverse orthogonally transformed signals to produce synthesized signals in the time domain.
Claim 21
Dependent Claim
72 words
The apparatus as claimed in claim 18, further comprising: means for selecting to be the same for two consecutive bands in the lowest frequency range at least one of the frequency width on division from time-domain signals prior to orthogonal transform into plural bands in the frequency domain and the frequency width on synthesis from plural bands in the frequency domain subsequent to inverse orthogonal transform into signals in the time domain.
Claim 22
Independent Claim
58 words
The apparatus as claimed in claims 7 or 16, further comprising: orthogonal transform means for dividing the digital signals into plural frequency components to produce signal components in plural two-dimensional blocks along time and frequency; and inverse orthogonal transform means for converting signals in the two-dimensional blocks along time and frequency into digital signals in the time domain.
Claim 23
Dependent Claim
28 words
The apparatus as claimed in claim 20, further comprising: means for varying the block size of at least one of the orthogonal transform or the inverse orthogonal transform.
Claim 24
Dependent Claim
56 words
The apparatus as claimed in claim 21, further comprising: means for selecting to be broader towards higher frequencies frequency width of divisions for at least one of time-domain signals prior to orthogonal transform into plural bands in the frequency domain and synthesized time domain signals subsequent to inverse orthogonal transform into signals in the time domain.
Claim 25
Dependent Claim
31 words
The apparatus as claimed in claim 22, wherein the means for selecting selects orthogonal transform block size to be the same among all of the modes having different information bit rates.
Claim 26
Dependent Claim
33 words
The apparatus as claimed in claim 23, further comprising: means for converting compressed data between modes having different information bit rates, such conversion of effected on the signal components in the frequency domain.
Claim 27
Dependent Claim
45 words
The apparatus as claimed in claim 24, wherein the means for converting compressed data between-modes, when mode-converting compressed data from a mode having a higher information bit rate to a mode having a lower information bit rate, converts the compressed data in the frequency domain.
Claim 28
Dependent Claim
44 words
The apparatus as claimed in claim 25, wherein the means for converting compressed data, when mode-converting compressed data from a mode having a lower information bit rate to a mode having a higher information bit rate, converts the compressed data on encoded compressed data.
Claim 29
Independent Claim
144 words
A method for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency so as to be recorded or transmitted along with information compressing parameters for each of the two-dimensional blocks along time and frequency, and/or in which the information-compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the information compressing parameters for each of the two-dimensional blocks along time and frequency, wherein the improvement comprises the step of: grouping for use in common the information compressing parameters for at least two of said two-dimensional blocks for at least one of recording, transmitting, reproducing and receiving.
Claim 30
Independent Claim
144 words
A method for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency so as to be recorded or transmitted along with information compressing parameters for each of the two-dimensional blocks along time and frequency, and/or in which the information-compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the information compressing parameters for each of the two-dimensional blocks along time and frequency, wherein the improvement comprises the step of: grouping for use in common the information compressing parameters for at least two of said two-dimensional blocks for at least one of recording, transmitting, reproducing and receiving.
Claim 31
Dependent Claim
24 words
The method as claimed in claim 27, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in the time domain.
Claim 32
Dependent Claim
29 words
The method as claimed in claim 28, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in and neighboring each other in the time domain.
Claim 33
Dependent Claim
37 words
The method as claimed in claim 27, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in and neighboring each other in at least one of the frequency domain and the time domain.
Claim 34
Dependent Claim
24 words
The method as claimed in claim 27, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in the frequency domain.
Claim 35
Independent Claim
34 words
The method as claimed in claims 28 or 31, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in at least one of the frequency domain and the time domain.
Claim 36
Dependent Claim
29 words
The method as claimed in claim 31, wherein the information compressing parameters of at least two two-dimensional blocks are arrayed in and neighboring each other in the frequency domain.
Claim 37
Independent Claim
148 words
A method for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency so as to be recorded or transmitted along with information compressing parameters for each of the two-dimensional blocks along time and frequency, and/or in which the information-compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the information compressing parameters for each of the two-dimensional blocks along time and frequency, wherein the improvement comprises the step of: changing the number of the information compressing parameters based upon information transfer bit rates for a selected mode, the selected mode being at least one of recording, reproducing, transmitting and receiving.
Claim 38
Independent Claim
148 words
A method for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency so as to be recorded or transmitted along with information compressing parameters for each of the two-dimensional blocks along time and frequency, and/or in which the information-compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the information compressing parameters for each of the two-dimensional blocks along time and frequency, wherein the improvement comprises the step of: changing the number of the information compressing parameters based upon information transfer bit rates for a selected mode, the selected mode being at least one of recording, reproducing, transmitting and receiving.
Claim 39
Dependent Claim
33 words
A recording medium having compressed data recorded thereon by the compressed data recording apparatus, or the compressed data recording, reproducing, transmitting and/or receiving method as claimed in claims 1, 8, 27 or 34.
Claim 40
Dependent Claim
18 words
The recording medium as claimed in claim 35, wherein the recording medium comprises: an optical disc recording medium.
Claim 41
Dependent Claim
17 words
The recording medium as claimed in claim 35, wherein the recording medium comprises: a semiconductor recording medium.
Claim 42
Dependent Claim
30 words
The method as claimed in claim 34, further comprising the step of: decreasing the number of information-compressing parameters in response to a lower information bit rate for a selected mode.
Claim 43
Dependent Claim
31 words
The method as claimed in claim 34, further comprising the step of: increasing the number of the information-compressing parameters in response to an increased information bit rate for a selected mode.
Claim 44
Independent Claim
32 words
The method as claimed in claims 38 or 39, further comprising the step of: changing the number of the information-compressing parameters in proportion to the information bit rates for each selected mode.
Claim 45
Dependent Claim
46 words
The method as claimed in claim 40, further comprising the step of: grouping together information-compressing parameters of at least two two-dimensional blocks, arrayed in at least one of the time scale and the frequency-scale to thereby achieve a reduction in the number of the information-compressing parameters.
Claim 46
Dependent Claim
48 words
The method as claimed in claim 40, further comprising the step of: grouping together information-compressing parameters of at least two neighboring two-dimensional blocks, arrayed in at least one of the time scale and the frequency scale to thereby achieve a reduction in the number of the information-compressing parameters.
Claim 47
Dependent Claim
43 words
The method as claimed in claim 42, further comprising the step of: grouping together the information compressing parameters which become larger in number for the mode having a lower information bit rate in inverse proportion to the information bit rate for such mode.
Claim 48
Dependent Claim
26 words
The method as claimed in claim 43, wherein the two-dimensional block is at least one of a block-floating block and a quantization noise generation suppressing block.
Claim 49
Independent Claim
42 words
The method as claimed in claims 30 or 44, wherein input signals are audio signals, further comprising the step of: setting the frequency width of at least the majority of the quantization noise generation suppressing blocks to be broader towards higher frequencies.
Claim 50
Independent Claim
63 words
The method as claimed in claims 30 or 44, further comprising the steps of: utilizing an orthogonal transform to divide the digital signals into plural frequency components for producing signal components in plural two-dimensional blocks along time and frequency; and utilizing an inverse orthogonal transform to convert signals in the two-dimensional blocks along time and frequency into digital signals in the time domain.
Claim 51
Dependent Claim
32 words
The method as claimed in claim 46, further comprising the step of: setting the block size of at least one of the orthogonal transform and the inverse orthogonal transform to be variable.
Claim 52
Dependent Claim
97 words
The method as claimed in claim 46, further comprising the steps of: dividing the frequency range into plural bands, in each of which blocks are formed, each block composed of plural samples, orthogonally transforming each of the plural bands to produce coefficient data, to thereby produce signal components in the two-dimensional blocks along time and frequency; converting signals in the plural bands in the frequency domain into signals in the time domain, by inverse orthogonally transforming signals within each of the plural bands; and synthesizing the inverse orthogonally transformed signals to produce signals in the time domain.
Claim 53
Dependent Claim
33 words
The method as claimed in claim 48, further comprising the step of: selecting the frequency width of the plural bands to be the same for two consecutive bands in the lowest frequency range.
Claim 54
Dependent Claim
22 words
The method as claimed in claim 49, further comprising the step of: selecting the frequency width to be broader towards higher frequencies.
Claim 55
Dependent Claim
33 words
The method as claimed in claim 50, further comprising the step of: selecting the orthogonal transform block size to be the same among the all of the modes having different information bit rates.
Claim 56
Dependent Claim
35 words
The method as claimed in claim 51, wherein when converting compressed data between modes having different information bit rates, such conversion of the compressed data is effected on the signal components in the frequency domain.
Claim 57
Dependent Claim
46 words
The method as claimed in claim 52, wherein when mode-converting compressed data from a mode having a higher information bit rate to a mode having a lower information bit rate, the conversion of the compressed data is performed on the signal components in the frequency domain.
Claim 58
Dependent Claim
42 words
The method as claimed in claim 53, wherein when mode-converting compressed data from a mode having a lower information bit rate to a mode having a higher information bit rate, the conversion of the compressed data is performed on encoded compressed data.
Claim 59
Dependent Claim
32 words
The method as claimed in claim 34, further comprising the step of: grouping together the information compressing parameters which become larger in number for the mode having a lower information bit rate.
Claim 60
Dependent Claim
36 words
The method as claimed in claim 34, wherein input signals are audio signals and the frequency width of at least a majority of quantization noise generation control blocks is selected to be broader towards higher frequencies.
Claim 61
Dependent Claim
28 words
The method as claimed in claim 56, wherein the two-dimensional blocks along time and frequency blocks for block floating and/or blocks for controlling the generation of quantization noise.
Claim 62
Dependent Claim
58 words
The method as claimed in claim 34, wherein an orthogonal transform is employed for dividing the digital signals into plural frequency components for producing signal components in two-dimensional blocks along time and frequency, and an inverse orthogonal transform is employed for converting signals in the two-dimensional blocks along time and frequency into digital signals in the time domain.
Claim 63
Dependent Claim
27 words
The method as claimed in claim 58, wherein the block size of the orthogonal transform or the inverse orthogonal transform is set so as to be variable.
Claim 64
Dependent Claim
104 words
The method as claimed in claim 58, wherein for dividing the digital signals into plural frequency components for producing signal components in the two-dimensional blocks along time and frequency, the frequency range is divided into plural bands, in each of which blocks each composed of plural samples are formed and orthogonal transform is executed for each band to produce coefficient data, and for converting signals in the plural bands in the frequency domain into signals in the time domain an inverse orthogonal transform is executed for each band, and respective inverse orthogonal transformed outputs are synthesized to produce synthesized signals in the time domain.
Claim 65
Dependent Claim
70 words
The method as claimed in claim 60, wherein the frequency width for divisions of at least one of time-domain signals prior to orthogonal transform into plural bands in the frequency domain and the signals generated from synthesis from plural bands in the frequency domain subsequent to inverse orthogonal transform into signals in the time domain is selected to be the same for two consecutive bands in the lowest frequency range.
Claim 66
Dependent Claim
61 words
The method as claimed in claim 61, wherein the frequency width for divisions of one of time-domain signals prior to orthogonal transform into plural bands in the frequency domain and signals generated from synthesis from plural bands in the frequency domain subsequent to inverse orthogonal transform into signals in the time domain is selected to be broader substantially towards higher frequencies.
Claim 67
Dependent Claim
28 words
The method as claimed in claim 62, wherein modified discrete cosine transform and inverse modified discrete cosine transform are utilized for orthogonal transform and inverse orthogonal transform, respectively.
Claim 68
Independent Claim
156 words
An apparatus for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency, and in which information compressing parameters are set for each of two-dimensional blocks along time and frequency and at least two of the information compressing parameters are grouped together so as to be recorded or transmitted along with the compressed dam, and/or in which the compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the compressed data and the information compressing parameters, wherein the improvement comprises: means for changing the grouping of information compressing parameters based upon at least one of a plurality of modes of division into the two-dimensional blocks along time and frequency.
Claim 69
Independent Claim
156 words
An apparatus for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency, and in which information compressing parameters are set for each of two-dimensional blocks along time and frequency and at least two of the information compressing parameters are grouped together so as to be recorded or transmitted along with the compressed dam, and/or in which the compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the compressed data and the information compressing parameters, wherein the improvement comprises: means for changing the grouping of information compressing parameters based upon at least one of a plurality of modes of division into the two-dimensional blocks along time and frequency.
Claim 70
Dependent Claim
36 words
The apparatus as claimed in claim 64, wherein the means for changing the grouping changes the grouping of the information compressing parameters based upon the number of divisions into the two-dimensional blocks along the time scale.
Claim 71
Dependent Claim
36 words
The apparatus as claimed in claim 64, wherein the means for changing the grouping changes the grouping of the information compressing parameters based upon the number of divisions into the two-dimensional blocks along the frequency scale.
Claim 72
Dependent Claim
44 words
The apparatus as claimed in claim 64, wherein the means for changing the grouping of information compressing parameters changes the grouping of the information compressing parameters based upon the number of divisions into the two-dimensional blocks along the frequency scale and the time scale.
Claim 73
Independent Claim
73 words
The apparatus as claimed in claims 65, 66, or 67, wherein the means for changing the grouping of information compressing parameters, if the number of divisions into the two-dimensional blocks along at least one of the time scale and the frequency scale is a plural number, groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the time scale and along the frequency scale in adjacency to each other.
Claim 74
Independent Claim
53 words
The apparatus as claimed in claims 65, 66 or 67, wherein the means for changing the grouping of information compressing parameters, if the number of divisions into the two-dimensional blocks along the time scale is zero, groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the time scale.
Claim 75
Dependent Claim
28 words
The apparatus as claimed in claim 67, wherein the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the frequency scale.
Claim 76
Independent Claim
55 words
The apparatus as claimed in claims 65, 66 or 67, wherein if the two-dimensional blocks along time and frequency are formed only by division along the frequency domain, the means for changing the grouping of information compressing parameters groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the frequency scale.
Claim 77
Dependent Claim
38 words
The apparatus as claimed in claim 71, wherein the means for changing the grouping of information compressing parameters groups information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the frequency scale.
Claim 78
Independent Claim
55 words
The apparatus as claimed in claims 65, 66 or 67, wherein the means for changing the grouping of information compressing parameters, if the number of divisions into the two-dimensional blocks along the time scale is a plural number, groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the time scale.
Claim 79
Dependent Claim
40 words
The apparatus as claimed in claim 73, wherein the means for changing the grouping of information compressing parameters, groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the time scale in adjacency to each other.
Claim 80
Dependent Claim
44 words
The apparatus as claimed in claim 74, wherein means for changing the grouping of information compressing parameters groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the time scale and along the frequency scale in adjacency to each other.
Claim 81
Independent Claim
229 words
An apparatus for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency, and in which information compressing parameters are set for each of two-dimensional blocks along time and frequency and at least two of the information compressing parameters are grouped together so as to be recorded or transmitted along with the compressed data, there being plural recording and/or transmitting modes with plural different information bit rates, with the number of the information compressing parameters grouped together being the more the lower the information bit rate of the recording and/or transmitting mode, and/or in which the compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the compressed data and the information compressing parameters, there being plural reproducing and/or receiving modes with plural different information bit rates, wherein the improvement comprises: means for changing the grouping of the information compressing parameters which are to be used in common for at least two of said two-dimensional blocks based upon at least one of a plurality of modes of division into two-dimensional blocks for at least one mode of recording, transmitting, reproducing and receiving.
Claim 82
Independent Claim
229 words
An apparatus for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency, and in which information compressing parameters are set for each of two-dimensional blocks along time and frequency and at least two of the information compressing parameters are grouped together so as to be recorded or transmitted along with the compressed data, there being plural recording and/or transmitting modes with plural different information bit rates, with the number of the information compressing parameters grouped together being the more the lower the information bit rate of the recording and/or transmitting mode, and/or in which the compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the compressed data and the information compressing parameters, there being plural reproducing and/or receiving modes with plural different information bit rates, wherein the improvement comprises: means for changing the grouping of the information compressing parameters which are to be used in common for at least two of said two-dimensional blocks based upon at least one of a plurality of modes of division into two-dimensional blocks for at least one mode of recording, transmitting, reproducing and receiving.
Claim 83
Dependent Claim
35 words
The apparatus as claimed in claim 76, wherein the means for changing the grouping the information compressing parameters changes the grouping based upon the number of divisions into the two-dimensional blocks along the time scale.
Claim 84
Dependent Claim
36 words
The apparatus as claimed in claim 76, wherein the means for changing the grouping of the information compressing parameters changes the grouping based upon the number of divisions into the two-dimensional blocks along the frequency scale.
Claim 85
Dependent Claim
40 words
The apparatus as claimed in claim 76, wherein the means for changing the grouping of the information compressing parameters changes the grouping based upon the number of divisions into the two-dimensional blocks along the frequency scale and the time scale.
Claim 86
Independent Claim
68 words
The apparatus as claimed in claims 77, 78 or 79, wherein the means for changing the grouping of information compressing parameters, if the number of divisions into the two-dimensional blocks along the time scale and/or the frequency scale is a plural number, groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the time scale and along the frequency scale.
Claim 87
Independent Claim
53 words
The apparatus as claimed in claims 77, 78 or 79, wherein the means for changing the grouping of information compressing parameters, if the number of divisions into the two-dimensional blocks along the time scale is zero, groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the frequency scale.
Claim 88
Dependent Claim
38 words
The apparatus as claimed in claim 81, wherein the means for changing the grouping of information compressing parameters groups information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the frequency scale.
Claim 89
Independent Claim
55 words
The apparatus as claimed in claims 77, 78 or 79, wherein the means for changing the grouping of information compressing parameters, if the two-dimensional blocks along time and frequency are constituted only by division along the frequency domain, groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the frequency scale.
Claim 90
Dependent Claim
48 words
The apparatus as claimed in claim 83, wherein the means for changing the grouping of information compressing parameters groups information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the frequency scale are grouped and recorded or transmitted and reproduced or received.
Claim 91
Independent Claim
56 words
The apparatus as claimed in claims 77, 78 and 79, wherein the means for changing the grouping of the information compressing parameters, if the number of divisions into the two-dimensional blocks along the time scale is a plural number, groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the time scale.
Claim 92
Dependent Claim
34 words
The apparatus as claimed in claim 85, wherein the means for changing the grouping of the information compressing parameters groups a plurality of the two-dimensional blocks arrayed adjacent to each along the time scale.
Claim 93
Dependent Claim
39 words
The apparatus as claimed in claim 86, wherein the means for changing the grouping of information compressing parameters groups the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the time scale.
Claim 94
Dependent Claim
56 words
The apparatus as claimed in claim 85, further comprising: orthogonal transform means for dividing the digital signals into plural frequency components to produce signal components in plural two-dimensional blocks along time and frequency; and inverse orthogonal transform means for converting signals in the two-dimensional blocks along time and frequency into digital signals in the time domain.
Claim 95
Dependent Claim
103 words
The apparatus as claimed in claim 88, further comprising: means for dividing the digital signals into plural frequency components to produce signal components in the two-dimensional blocks along time and frequency, the frequency range is divided into plural bands, in each of which blocks each composed of plural samples are formed; means for orthogonally transforming each band to produce coefficient data; means for converting signals in the plural bands in the frequency domain into signals in the time domain by inverse orthogonally transforming each band; and means for synthesizing the signals in the time domain to produce synthesized signals in the time domain.
Claim 96
Independent Claim
64 words
The apparatus as claimed in claims 89, further comprising: means for selecting the frequency width of divided plural bands to be the same for two consecutive bands in the lowest frequency range for at least one of the time-domain signals prior to orthogonal transformation into plural bands in the frequency domain and the synthesized signals subsequent to inverse orthogonal transformation of such synthesized signals.
Claim 97
Independent Claim
30 words
The apparatus as claimed in claims 88 or 89, further comprising: means for varying the block size of at least one of the orthogonal transform and the inverse orthogonal transform.
Claim 98
Dependent Claim
23 words
The apparatus as claimed in claim 91 further comprising: means for selecting the frequency width of division to be broader toward higher frequencies.
Claim 99
Dependent Claim
64 words
The apparatus as claimed in claim 91, further comprising: means for selecting the frequency width of divided plural bands to be the same for two consecutive bands in the lowest frequency range for at least one of the time-domain signals prior to orthogonal transformation into plural bands in the frequency domain and the synthesized signals subsequent to inverse orthogonal transformation of such synthesized signals.
Claim 100
Dependent Claim
38 words
The apparatus as claimed in claim 85, wherein input signals are audio signals, further comprising: means for selecting the frequency width of at least a majority of quantization noise suppression control blocks to be broader towards higher frequencies.
Claim 101
Dependent Claim
33 words
The apparatus as claimed in claim 94, wherein the two-dimensional blocks along time and frequency are at least one of blocks for block floating and blocks for controlling the generation of quantization noise.
Claim 102
Independent Claim
187 words
A method for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency, and in which information compressing parameters are set for each of two-dimensional blocks along time and frequency and at least two of the information compressing parameters are grouped together so as to be recorded or transmitted along with the compressed data, and/or in which the compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the compressed data and the information compressing parameters, wherein the improvement comprises the step of: changing the grouping of the information compressing parameters which are to be used in common for at least two of the two-dimensional blocks along time and frequency based upon on a selection of at least one of a plurality of modes of division into the two-dimensional blocks for at least one of recording, transmitting, reproducing and receiving.
Claim 103
Independent Claim
187 words
A method for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency, and in which information compressing parameters are set for each of two-dimensional blocks along time and frequency and at least two of the information compressing parameters are grouped together so as to be recorded or transmitted along with the compressed data, and/or in which the compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the compressed data and the information compressing parameters, wherein the improvement comprises the step of: changing the grouping of the information compressing parameters which are to be used in common for at least two of the two-dimensional blocks along time and frequency based upon on a selection of at least one of a plurality of modes of division into the two-dimensional blocks for at least one of recording, transmitting, reproducing and receiving.
Claim 104
Dependent Claim
37 words
The method as claimed in claim 96, wherein the manner of grouping the information compressing parameters is changed based upon on the number of divisions into the two-dimensional blocks along the frequency scale and the time scale.
Claim 105
Dependent Claim
32 words
The method as claimed in claim 96, wherein the manner of grouping the information compressing parameters is changed based upon the number of divisions into the two-dimensional blocks along the frequency scale.
Claim 106
Dependent Claim
34 words
The method as claimed in claim 96, wherein the step of changing the grouping of information compression parameters is based upon on the number of divisions into the two-dimensional blocks along the time scale.
Claim 107
Independent Claim
46 words
The method as claimed in claims 99, 98 or 97, wherein if the number of divisions into the two-dimensional blocks along the time scale is a plural number, the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the time scale are grouped.
Claim 108
Dependent Claim
33 words
The method as claimed in claim 100, wherein the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the time scale in adjacency to each other.
Claim 109
Dependent Claim
35 words
The method as claimed in claim 101, wherein the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the time scale and along the frequency scale are grouped.
Claim 110
Independent Claim
59 words
The method as claimed in claims 99, 98 or 97, wherein if the number of divisions into the two-dimensional blocks along the time scale and/or the frequency scale is a plural number, the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the time scale and along the frequency scale are grouped.
Claim 111
Independent Claim
46 words
The method as claimed in claims 99, 98 or 97, wherein if the two-dimensional blocks along time and frequency are formed only by division along the frequency domain, the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the frequency scale are grouped.
Claim 112
Dependent Claim
30 words
The method as claimed in claim 104, wherein the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the frequency scale are grouped.
Claim 113
Independent Claim
44 words
The method as claimed in claims 99, 98 or 97, wherein if the number of divisions into the two-dimensional blocks along the time scale is zero, the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the time scale are grouped.
Claim 114
Dependent Claim
30 words
The method as claimed in claim 106, wherein the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the frequency scale are grouped.
Claim 115
Independent Claim
224 words
A method for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency, and in which information compressing parameters are set for each of two-dimensional blocks along time and frequency and at least two of the information compressing parameters are grouped together so as to be recorded or transmitted along with the compressed data, there being plural recording and/or transmitting modes with plural different information transfer bit rates, with the number of the information compressing parameters grouped together being one of the greater and lesser of the information transfer bit rate of the recording and/or transmitting mode, and/or in which the compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the compressed data and the information compressing parameters, there being plural reproducing and/or receiving modes with plural different information transfer bit rates, wherein the improvement comprises the step of: changing the grouping the information compressing parameters to be used in common based upon a selected mode of division into the two-dimensional blocks, there being plural modes of division into the two-dimensional blocks along time and frequency.
Claim 116
Independent Claim
224 words
A method for recording, reproducing, transmitting and/or receiving compressed data in which digital signals are divided into signal components of plural frequency bands to produce signal components in plural two-dimensional blocks along time and frequency, the signal components being quantized and compressed for each of the two-dimensional blocks along time and frequency, and in which information compressing parameters are set for each of two-dimensional blocks along time and frequency and at least two of the information compressing parameters are grouped together so as to be recorded or transmitted along with the compressed data, there being plural recording and/or transmitting modes with plural different information transfer bit rates, with the number of the information compressing parameters grouped together being one of the greater and lesser of the information transfer bit rate of the recording and/or transmitting mode, and/or in which the compressed signal components within each of the two-dimensional blocks along time and frequency are reproduced or received using the compressed data and the information compressing parameters, there being plural reproducing and/or receiving modes with plural different information transfer bit rates, wherein the improvement comprises the step of: changing the grouping the information compressing parameters to be used in common based upon a selected mode of division into the two-dimensional blocks, there being plural modes of division into the two-dimensional blocks along time and frequency.
Claim 117
Dependent Claim
34 words
The method as claimed in claim 108, wherein the grouping the information compressing parameters is changed depending on the number of divisions into the two-dimensional blocks along the frequency scale and the time scale.
Claim 118
Dependent Claim
30 words
The method as claimed in claim 108, wherein the grouping the information compressing parameters is changed depending on the number of divisions into the two-dimensional blocks along the time scale.
Claim 119
Dependent Claim
30 words
The method as claimed in claim 108, wherein the grouping the information compressing parameters is changed depending on the number of divisions into the two-dimensional blocks along the frequency scale.
Claim 120
Independent Claim
56 words
The method as claimed in claims 110, 111 or 109, wherein if the two-dimensional blocks along time and frequency are formed only by division along the frequency domain, the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the frequency scale are grouped and at least one of recorded, transmitted, reproduced and received.
Claim 121
Dependent Claim
40 words
The method as claimed in claim 112, wherein the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the frequency scale are grouped and at least one of recorded, transmitted, reproduced and received.
Claim 122
Independent Claim
54 words
The method as claimed in claims 110, 111 or 109, wherein if the number of divisions into the two-dimensional blocks along the time scale is zero, the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the frequency scale are grouped and at least one of recorded, transmitted, reproduced and received.
Claim 123
Dependent Claim
40 words
The method as claimed in claim 114, wherein the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the frequency scale are grouped and at least one of recorded, transmitted, reproduced and received.
Claim 124
Independent Claim
68 words
The method as claimed in claims 110, 111 or 109, wherein if the number of divisions into the two-dimensional blocks along the time scale and/or the frequency scale is a plural number, the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the time scale and along the frequency scale are grouped and at least one of-recorded, transmitted, reproduced and received.
Claim 125
Independent Claim
57 words
The method as claimed in claims 110, 111 or 109, wherein if the number of divisions into the two-dimensional blocks along the time scale is a plural number, the information compressing parameters of a plurality of the two-dimensional blocks arrayed along the time scale are grouped and at least one of recorded, transmitted and reproduced and received.
Claim 126
Dependent Claim
40 words
The method as claimed in claim 117, wherein the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the time scale are grouped and at least one of recorded, transmitted, reproduced and received.
Claim 127
Dependent Claim
48 words
The method as claimed in claim 118, wherein the information compressing parameters of a plurality of the two-dimensional blocks arrayed adjacent to each other along the time scale and along the frequency scale to each other are grouped and at least one of recorded, transmitted, reproduced and received.
Claim 128
Dependent Claim
17 words
A recording medium having recorded thereon the compressed data according to claims 64, 76, 88 or 89.
Claim 129
Dependent Claim
19 words
The recording medium having the compressed data recorded thereon according to claim 120 comprising; an optical disc recording medium.
Claim 130
Dependent Claim
15 words
The medium having the compressed data recorded thereon according to claim 120 comprising: a semiconductor.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 1999-08-20 | 2000-02-19 | 2000-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-20 | 2004-02-19 | 2004-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-20 | 2008-02-19 | 2008-08-20 | $7700.00 | Window Closed / Lapsed |