US5892884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling a sum of a varying information amount of a video signal and a varying information amount of an audio signal so that the sum is within a predetermined amount of data range
Assignee: Mitsubishi Electric Corp
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Filing: 1995-10-18
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Granted: 1999-04-06
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Expires: 2015-10-18
Abstract
Abstract A digital video/audio recording and reproducing apparatus comprising a video signal high-efficiency encoder having a variable reduction rate, an audio signal high-efficiency encoder having a variable reduction rate, and a controller for controlling the reduction rates in both of the high-efficiency encoders. The reduction rates in both of the high-efficiency encoders are controlled in such a manner that the sum of the information amount of the video signal and that of the audio signal, after high-efficiency encoding, is maintained constant. When recording multi-channel audio signals, the reduction rates in both of the high-efficiency encoders are controlled according to the number of audio signal channels to be recorded. The high frequency components of the high-efficiency encoded video and audio signals are recorded at the end portions of recording tracks on a magnetic tape, while the low frequency components thereof are recorded in the central portion of the recording tracks.
Inventors
- 👤 Kazuhiro Sugiyama
- 👤 Ken Onishi
- 👤 Kimitoshi Hongo
- 👤 Yukari Ono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:16
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/926; H04N5/9261; H04N5/9264; G; G11; G11B; G11B20/00; G11B20/00007; H04N19/00; H04N19/10; H04N19/102; H04N19/124; H04N19/134; H04N19/146; H04N19/149; H04N19/169; H04N19/17; H04N19/176; H04N19/60; H04N19/61; H04N19/85; H04N19/88; H04N5/9265; H04N5/9267; H04N5/9268; H04N5/93; H04N5/94; H04N5/945; H04N19/152; H04N5/78; H04N5/782; H04N5/7824; H04N5/7826; H04N5/78263
Claims Analysis
Total Claims: 71
Claim 1
Independent Claim
100 words
A digital video/audio encoding apparatus, comprising: an encoder, including a video encoder and an audio encoder, encoding a digitized video signal and a digitized audio signal at a fixed amount of information per unit time; and a controller, controlling said encoder such that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal is maintained constant; said controller controlling said video encoder such that a variable amount of the digitized video signal output from said video encoder is dependent on an output of said audio encoder.
Claim 2
Dependent Claim
100 words
A digital video/audio encoding apparatus, comprising: an encoder, including a video encoder and an audio encoder, encoding a digitized video signal and a digitized audio signal at a fixed amount of information per unit time; and a controller, controlling said encoder such that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal is maintained constant; said controller controlling said video encoder such that a variable amount of the digitized video signal output from said video encoder is dependent on an output of said audio encoder.
Claim 3
Dependent Claim
146 words
A digital video/audio encoding apparatus for encoding a digitized video and a digitized audio signal at a fixed amount of information per unit time, said digital video/audio encoding apparatus comprising: first encoding means for compressing and encoding the digitized video signal with a first variable reduction rate; second encoding means for compressing and encoding the digitized audio signal with a second variable reduction rate; and control means for controlling the first and second reduction rates in said first and said second encoding means so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal is maintained constant; said control means controlling said first encoding means such that a variable amount of the digitized video signal output from said first encoding means is dependent on an output of said second encoding means.
Claim 4
Dependent Claim
146 words
A digital video/audio encoding apparatus for encoding a digitized video and a digitized audio signal at a fixed amount of information per unit time, said digital video/audio encoding apparatus comprising: first encoding means for compressing and encoding the digitized video signal with a first variable reduction rate; second encoding means for compressing and encoding the digitized audio signal with a second variable reduction rate; and control means for controlling the first and second reduction rates in said first and said second encoding means so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal is maintained constant; said control means controlling said first encoding means such that a variable amount of the digitized video signal output from said first encoding means is dependent on an output of said second encoding means.
Claim 5
Dependent Claim
105 words
The digital video/audio encoding apparatus of claim 2, wherein the encoded digitized video signal and the encoded digitized audio signal are recorded so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video information amount, the encoded digitized audio signal is recorded in a recording area originally provided for recording the encoded digitized video signal, and so that when the varying information amount of the encoded digitized audio signal is smaller than a reserved audio information amount, the encoded digitized video signal is recorded in a recording area originally provided for recording the encoded digitized audio signal.
Claim 6
Dependent Claim
143 words
A digital video/audio encoding apparatus for encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said digital video/audio encoding apparatus comprising: encoding means for encoding the digitized video signal with a variable reduction rate; means for identifying a number of digitized audio signals of the digitized multi-channel audio signal; and means for controlling the variable reduction rate in said encoding means according to the number of digitized audio signals so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said means for controlling controlling said encoding means such that a variable amount of the digitized video signal output from said encoding means is dependent on an output of said means for identifying.
Claim 7
Dependent Claim
143 words
A digital video/audio encoding apparatus for encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said digital video/audio encoding apparatus comprising: encoding means for encoding the digitized video signal with a variable reduction rate; means for identifying a number of digitized audio signals of the digitized multi-channel audio signal; and means for controlling the variable reduction rate in said encoding means according to the number of digitized audio signals so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said means for controlling controlling said encoding means such that a variable amount of the digitized video signal output from said encoding means is dependent on an output of said means for identifying.
Claim 8
Dependent Claim
166 words
A digital video/audio encoding apparatus for encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said digital video/audio encoding apparatus comprising: first encoding means for compressing and encoding the digitized video signal with a first variable reduction rate; means for identifying a number of digitized audio signals of the digitized multi-channel audio signal; second encoding means for compressing and encoding the number of digitized audio signals with a second variable reduction rate; and control means for controlling the first and second reduction rates in said first and said second encoding means so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said control means controlling said first encoding means such that a variable amount of the digitized video signal output from said first encoding means is dependent on an output of said second encoding means.
Claim 9
Dependent Claim
166 words
A digital video/audio encoding apparatus for encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said digital video/audio encoding apparatus comprising: first encoding means for compressing and encoding the digitized video signal with a first variable reduction rate; means for identifying a number of digitized audio signals of the digitized multi-channel audio signal; second encoding means for compressing and encoding the number of digitized audio signals with a second variable reduction rate; and control means for controlling the first and second reduction rates in said first and said second encoding means so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said control means controlling said first encoding means such that a variable amount of the digitized video signal output from said first encoding means is dependent on an output of said second encoding means.
Claim 10
Dependent Claim
159 words
The digital video/audio encoding apparatus of claim 5, wherein the encoded digitized video signal and the number of digitized audio signals are recorded so that reduction rates of the encoded digitized video signal and encoded digitized multi-channel audio signal increase when a number of audio signal channels selected for encoding increases, and decrease when the number of audio signal channels selected for encoding decreases, so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video information amount, the number of the audio signals selected for encoding can be recorded in a recording area originally provided for recording the encoded digitized video signal and so that when the varying information amount of the number of audio signals selected for encoding is smaller than a reserved audio data amount, the encoded digitized video signals can be recorded in a recording area originally provided for recording the number of audio signals selected for recording.
Claim 11
Dependent Claim
120 words
A digital video/audio encoding apparatus comprising: first encoding means for compressing and encoding a digitized video signal with a first reduction rate; second encoding means for compressing and encoding a digitized audio signal with a second reduction rate; and control means for controlling the first and second reduction rates in said first and said second encoding means so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal is maintained constant; said control means controlling said first encoding means such that a variable amount of the digitized video signal output from said first encoding means is dependent on an output of said second encoding means.
Claim 12
Dependent Claim
120 words
A digital video/audio encoding apparatus comprising: first encoding means for compressing and encoding a digitized video signal with a first reduction rate; second encoding means for compressing and encoding a digitized audio signal with a second reduction rate; and control means for controlling the first and second reduction rates in said first and said second encoding means so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal is maintained constant; said control means controlling said first encoding means such that a variable amount of the digitized video signal output from said first encoding means is dependent on an output of said second encoding means.
Claim 13
Dependent Claim
105 words
The digital video/audio encoding apparatus of claim 7, wherein the encoded digitized video signal and the encoded digitized audio signal are recorded so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video data amount, the encoded digitized audio signal is recorded in a recording area originally provided for recording the encoded digitized video signal, and so that when the varying information amount of the encoded digitized audio signal is smaller than a reserved audio data amount, the encoded digitized video signal is recorded in a recording area originally provided for recording the encoded digitized audio signal.
Claim 14
Dependent Claim
116 words
A digital video/audio encoding apparatus comprising: encoding means for compressing and encoding a digitized video signal with a reduction rate; means for identifying a number of digitized audio signals of a multi-channel audio signal; and means for controlling the reduction rate in said encoding means according to the number of digitized audio signals so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said means for controlling controlling said encoding means such that a variable amount of the digitized video signal output from said encoding means is dependent on an output of said means for identifying.
Claim 15
Dependent Claim
116 words
A digital video/audio encoding apparatus comprising: encoding means for compressing and encoding a digitized video signal with a reduction rate; means for identifying a number of digitized audio signals of a multi-channel audio signal; and means for controlling the reduction rate in said encoding means according to the number of digitized audio signals so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said means for controlling controlling said encoding means such that a variable amount of the digitized video signal output from said encoding means is dependent on an output of said means for identifying.
Claim 16
Dependent Claim
136 words
A digital video/audio encoding apparatus comprising: first encoding means for compressing and encoding a digitized video signal with a first reduction rate; means for identifying a number of digitized audio signals of a multi-channel audio signal; second encoding means for compressing and encoding the number of audio signals with a second reduction rate; and control means for controlling the first and second reduction rates in said first and said second encoding means so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said control means controlling said first encoding means such that a variable amount of the digitized video signal output from said first encoding means is dependent on an output of said second encoding means.
Claim 17
Dependent Claim
136 words
A digital video/audio encoding apparatus comprising: first encoding means for compressing and encoding a digitized video signal with a first reduction rate; means for identifying a number of digitized audio signals of a multi-channel audio signal; second encoding means for compressing and encoding the number of audio signals with a second reduction rate; and control means for controlling the first and second reduction rates in said first and said second encoding means so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said control means controlling said first encoding means such that a variable amount of the digitized video signal output from said first encoding means is dependent on an output of said second encoding means.
Claim 18
Dependent Claim
164 words
The digital video/audio encoding apparatus of claim 10, wherein the encoded digitized video signal and the number of digitized audio signals are recorded so that reduction rates of the encoded digitized video signal and encoded digitized multi-channel audio signal increase when a number of digitized audio signal channels selected for recording increases, and decrease when the number of digitized audio signal channels selected for recording decreases, so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video data amount, the number of the digitized audio signals selected for recording can be recorded in a recording area originally provided for recording the encoded digitized video signal and so that when the varying information amount of the number of digitized audio signals selected for recording is smaller than a reserved audio data amount, the encoded digitized video signal can be recorded in a recording area originally provided for recording the number of digitized audio signals selected for recording.
Claim 19
Independent Claim
130 words
A method of encoding a digitized video and a digitized audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) compressing and encoding the digitized video signal with a first variable reduction rate; (b) compressing and encoding the digitized audio signal with a second variable reduction rate; and (c) controlling the first and second reduction rates in said steps (a) and (b) so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal is maintained constant; said step (c) controlling said step (a) such that a variable amount of the digitized video signal output from said step (a) is dependent on an output of said step (b).
Claim 20
Independent Claim
130 words
A method of encoding a digitized video and a digitized audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) compressing and encoding the digitized video signal with a first variable reduction rate; (b) compressing and encoding the digitized audio signal with a second variable reduction rate; and (c) controlling the first and second reduction rates in said steps (a) and (b) so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal is maintained constant; said step (c) controlling said step (a) such that a variable amount of the digitized video signal output from said step (a) is dependent on an output of said step (b).
Claim 21
Dependent Claim
102 words
The method of claim 12, wherein the encoded digitized video signal and the encoded digitized audio signal are recorded so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video information amount, the encoded digitized audio signal is recorded in a recording area originally provided for recording the encoded digitized video signal, and so that when the varying information amount of the encoded digitized audio signal is smaller than a reserved audio information amount, the encoded digitized video signal is recorded in a recording area originally provided for recording the encoded digitized audio signal.
Claim 22
Independent Claim
136 words
A method of encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) encoding the encoded digitized video signal with a variable reduction rate; (b) identifying a number of digitized audio signals of the digitized multi-channel audio signal; and (c) controlling the reduction rate in said steps (a) and (b) according to the number of digitized audio signals so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said step (c) controlling said step (a) such that a variable amount of the digitized video signal output from said step (a) is dependent on an output of said step (b).
Claim 23
Independent Claim
136 words
A method of encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) encoding the encoded digitized video signal with a variable reduction rate; (b) identifying a number of digitized audio signals of the digitized multi-channel audio signal; and (c) controlling the reduction rate in said steps (a) and (b) according to the number of digitized audio signals so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said step (c) controlling said step (a) such that a variable amount of the digitized video signal output from said step (a) is dependent on an output of said step (b).
Claim 24
Independent Claim
147 words
A method of encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) compressing and encoding the digitized video signal with a first variable reduction rate; (b) identifying a number of digitized audio signals digitized multi-channel audio signal; (c) compressing and encoding the number of digitized audio signals with a second variable reduction rate; and (d) controlling the first and second reduction rates in said steps (a) and (c) so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said step (d) controlling said step (a) such that a variable amount of the digitized video signal output from said step (a) is dependent on an output of said step (c).
Claim 25
Independent Claim
147 words
A method of encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) compressing and encoding the digitized video signal with a first variable reduction rate; (b) identifying a number of digitized audio signals digitized multi-channel audio signal; (c) compressing and encoding the number of digitized audio signals with a second variable reduction rate; and (d) controlling the first and second reduction rates in said steps (a) and (c) so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said step (d) controlling said step (a) such that a variable amount of the digitized video signal output from said step (a) is dependent on an output of said step (c).
Claim 26
Dependent Claim
156 words
The method of claim 15, wherein the encoded digitized video signal and the number of digitized audio signals are recorded so that reduction rates of the encoded digitized video signal and encoded digitized multi-channel audio signal increase when a number of audio signal channels selected for encoding increases, and decrease when the number of audio signal channels selected for encoding decreases, so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video information amount, the number of the audio signals selected for encoding can be recorded in a recording area originally provided for recording the encoded digitized video signal and so that when the varying information amount of the number of audio signals selected for encoding is smaller than a reserved audio data amount, the encoded digitized video signals can be recorded in a recording area originally provided for recording the number of audio signals selected for recording.
Claim 27
Independent Claim
107 words
A method comprising the steps of: (a) compressing and encoding a digitized video signal with a first reduction rate; (b) compressing and encoding a digitized audio signal with a second reduction rate; and (c) controlling the first and second reduction rates in said steps (a) and (b) so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal is maintained constant; said step (c) controlling said step (a) such that a variable amount of the digitized video signal output from said step (a) is dependent on an output of said step (b).
Claim 28
Independent Claim
107 words
A method comprising the steps of: (a) compressing and encoding a digitized video signal with a first reduction rate; (b) compressing and encoding a digitized audio signal with a second reduction rate; and (c) controlling the first and second reduction rates in said steps (a) and (b) so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal is maintained constant; said step (c) controlling said step (a) such that a variable amount of the digitized video signal output from said step (a) is dependent on an output of said step (b).
Claim 29
Dependent Claim
102 words
The method of claim 17, wherein the encoded digitized video signal and the encoded digitized audio signal are recorded so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video data amount, the encoded digitized audio signal is recorded in a recording area originally provided for recording the encoded digitized video signal, and so that when the varying information amount of the encoded digitized audio signal is smaller than a reserved audio data amount, the encoded digitized video signal is recorded in a recording area originally provided for recording the encoded digitized audio signal.
Claim 30
Independent Claim
110 words
A method comprising the steps of: (a) compressing and encoding a digitized video signal with a reduction rate; (b) identifying a number of digitized audio signals of a multi-channel audio signal; and (c) controlling the reduction rate in said step (a) according to the number of digitized audio signals so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said step (c) controlling said step (a) such that a variable amount of the digitized video signal output from said step (c) is dependent on an output of said step (b).
Claim 31
Independent Claim
110 words
A method comprising the steps of: (a) compressing and encoding a digitized video signal with a reduction rate; (b) identifying a number of digitized audio signals of a multi-channel audio signal; and (c) controlling the reduction rate in said step (a) according to the number of digitized audio signals so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said step (c) controlling said step (a) such that a variable amount of the digitized video signal output from said step (c) is dependent on an output of said step (b).
Claim 32
Independent Claim
121 words
A method comprising the steps of: (a) compressing and encoding a digitized video signal with a first reduction rate; (b) identifying a number of digitized audio signals of a multi-channel audio signal; (c) compressing and encoding the number of audio signals with a second reduction rate; and (d) controlling the first and second reduction rates in said steps (a) and (c) that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said step (d) controlling said step (a) such that a variable amount of the digitized video signal output from said step (a) is dependent on an output of said step (c).
Claim 33
Independent Claim
121 words
A method comprising the steps of: (a) compressing and encoding a digitized video signal with a first reduction rate; (b) identifying a number of digitized audio signals of a multi-channel audio signal; (c) compressing and encoding the number of audio signals with a second reduction rate; and (d) controlling the first and second reduction rates in said steps (a) and (c) that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals is maintained constant; said step (d) controlling said step (a) such that a variable amount of the digitized video signal output from said step (a) is dependent on an output of said step (c).
Claim 34
Dependent Claim
161 words
The method of claim 20, wherein the encoded digitized video signal and the number of digitized audio signals are recorded so that reduction rates of the encoded digitized video signal and encoded digitized multi-channel audio signal increase when a number of digitized audio signal channels selected for recording increases, and decrease when the number of digitized audio signal channels selected for recording decreases, so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video data amount, the number of the digitized audio signals selected for recording can be recorded in a recording area originally provided for recording the encoded digitized video signal and so that when the varying information amount of the number of digitized audio signals selected for recording is smaller than a reserved audio data amount, the encoded digitized video signal can be recorded in a recording area originally provided for recording the number of digitized audio signals selected for recording.
Claim 35
Dependent Claim
116 words
A digital video/audio decoding apparatus, comprising: a decoder, decoding signals obtained by encoding a digitized video signal and a digitized audio signal at a fixed amount of information per unit time; and a controller, controlling said decoder, wherein the digitized video signal and the digitized audio signal were encoded by a video encoder and an audio encoder such that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 36
Dependent Claim
116 words
A digital video/audio decoding apparatus, comprising: a decoder, decoding signals obtained by encoding a digitized video signal and a digitized audio signal at a fixed amount of information per unit time; and a controller, controlling said decoder, wherein the digitized video signal and the digitized audio signal were encoded by a video encoder and an audio encoder such that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 37
Dependent Claim
173 words
A digital video/audio decoding apparatus for decoding encoded signals obtained by encoding a digitized video and a digitized audio signal at a fixed amount of information per unit time, said digital video/audio decoding apparatus comprising: first decoding means for expanding and decoding the encoded digitized video signal with a first variable expansion rate; second decoding means for expanding and decoding the encoded digitized audio signal with a second variable expansion rate; and control means for controlling the first and second expansion rates in said first and said second decoding means to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 38
Dependent Claim
173 words
A digital video/audio decoding apparatus for decoding encoded signals obtained by encoding a digitized video and a digitized audio signal at a fixed amount of information per unit time, said digital video/audio decoding apparatus comprising: first decoding means for expanding and decoding the encoded digitized video signal with a first variable expansion rate; second decoding means for expanding and decoding the encoded digitized audio signal with a second variable expansion rate; and control means for controlling the first and second expansion rates in said first and said second decoding means to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 39
Dependent Claim
35 words
The digital video/audio decoding apparatus of claim 23, wherein the coded digitized video signal and the encoded digitized audio signal are stored on one of a magnetic tape, magnetic disk, optical disk, and semiconductor memory.
Claim 40
Dependent Claim
105 words
The digital video/audio decoding apparatus of claim 23, wherein the encoded digitized video signal and the encoded digitized audio signal were recorded so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video information amount, the encoded digitized audio signal is recorded in a recording area originally provided for recording the encoded digitized video signal, and so that when the varying information amount of the encoded digitized audio signal is smaller than a reserved audio information amount, the encoded digitized video signal is recorded in a recording area originally provided for recording the encoded digitized audio signal.
Claim 41
Dependent Claim
172 words
A digital video/audio decoding apparatus for decoding encoded signals obtained by encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said digital video/audio decoding apparatus comprising: decoding means for decoding the encoded digitized video signal with a variable expansion rate; means for identifying a number of digitized audio signals to be reproduced from the digitized multi-channel audio signal; and means for controlling the expansion rate in said decoding means according to the number of digitized audio signals to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 42
Dependent Claim
172 words
A digital video/audio decoding apparatus for decoding encoded signals obtained by encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said digital video/audio decoding apparatus comprising: decoding means for decoding the encoded digitized video signal with a variable expansion rate; means for identifying a number of digitized audio signals to be reproduced from the digitized multi-channel audio signal; and means for controlling the expansion rate in said decoding means according to the number of digitized audio signals to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 43
Dependent Claim
196 words
A digital video/audio decoding apparatus for decoding encoded signals obtained by encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said digital video/audio decoding apparatus comprising: first decoding means for expanding and decoding the encoded digitized video signal with a first variable expansion rate; means for identifying a number of digitized audio signals to be reproduced from the encoded digitized multi-channel audio signal; second decoding means for expanding and decoding the number of digitized audio signals with a second variable expansion rate; and control means for controlling the first and second expansion rates in said first and said second decoding means to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 44
Dependent Claim
196 words
A digital video/audio decoding apparatus for decoding encoded signals obtained by encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said digital video/audio decoding apparatus comprising: first decoding means for expanding and decoding the encoded digitized video signal with a first variable expansion rate; means for identifying a number of digitized audio signals to be reproduced from the encoded digitized multi-channel audio signal; second decoding means for expanding and decoding the number of digitized audio signals with a second variable expansion rate; and control means for controlling the first and second expansion rates in said first and said second decoding means to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 45
Dependent Claim
159 words
The digital video/audio decoding apparatus of claim 27, wherein the encoded digitized video signal and the number of digitized audio signals were recorded so that reduction rates of the encoded digitized video signal and encoded digitized multi-channel audio signal increase when a number of audio signal channels selected for encoding increases, and decrease when the number of audio signal channels selected for encoding decreases, so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video information amount, the number of the audio signals selected for encoding can be recorded in a recording area originally provided for recording the encoded digitized video signal and so that when the varying information amount of the number of audio signals selected for encoding is smaller than a reserved audio data amount, the encoded digitized video signals can be recorded in a recording area originally provided for recording the number of audio signals selected for recording.
Claim 46
Dependent Claim
142 words
A digital video/audio decoding apparatus comprising: first decoding means for expanding and decoding an encoded digitized video signal with a first expansion rate; second decoding means for expanding and decoding an encoded digitized audio signal with a second expansion rate; and control means for controlling the first and second expansion rates in said first and said second decoding means to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 47
Dependent Claim
142 words
A digital video/audio decoding apparatus comprising: first decoding means for expanding and decoding an encoded digitized video signal with a first expansion rate; second decoding means for expanding and decoding an encoded digitized audio signal with a second expansion rate; and control means for controlling the first and second expansion rates in said first and said second decoding means to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 48
Dependent Claim
105 words
The digital video/audio decoding apparatus of claim 29, wherein the encoded digitized video signal and the encoded digitized audio signal were recorded so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video data amount, the encoded digitized audio signal is recorded in a recording area originally provided for recording the encoded digitized video signal, and so that when the varying information amount of the encoded digitized audio signal is smaller than a reserved audio data amount, the encoded digitized video signal is recorded in a recording area originally provided for recording the encoded digitized audio signal.
Claim 49
Dependent Claim
141 words
A digital video/audio decoding apparatus comprising: decoding means for expanding and decoding an encoded digitized video signal with an expansion rate; means for identifying a number of digitized audio signals to be reproduced from a multi-channel audio signal; and means for controlling the expansion rate in said decoding means according to the number of digitized audio signals to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 50
Dependent Claim
141 words
A digital video/audio decoding apparatus comprising: decoding means for expanding and decoding an encoded digitized video signal with an expansion rate; means for identifying a number of digitized audio signals to be reproduced from a multi-channel audio signal; and means for controlling the expansion rate in said decoding means according to the number of digitized audio signals to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 51
Dependent Claim
160 words
A digital video/audio decoding apparatus comprising: first decoding means for expanding and decoding an encoded digitized video signal with a first expansion rate; means for identifying a number of digitized audio signals to be reproduced from a multi-channel audio signal; second decoding means for expanding and decoding the number of audio signals with a second expansion rate; and control means for controlling the first and second expansion rates in said first and said second decoding means to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 52
Dependent Claim
160 words
A digital video/audio decoding apparatus comprising: first decoding means for expanding and decoding an encoded digitized video signal with a first expansion rate; means for identifying a number of digitized audio signals to be reproduced from a multi-channel audio signal; second decoding means for expanding and decoding the number of audio signals with a second expansion rate; and control means for controlling the first and second expansion rates in said first and said second decoding means to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 53
Dependent Claim
164 words
The digital video/audio decoding apparatus of claim 32, wherein the encoded digitized video signal and the number of digitized audio signals were recorded so that reduction rates of the encoded digitized video signal and encoded digitized multi-channel audio signal increase when a number of digitized audio signal channels selected for recording increases, and decrease when the number of digitized audio signal channels selected for recording decreases, so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video data amount, the number of the digitized audio signals selected for recording can be recorded in a recording area originally provided for recording the encoded digitized video signal and so that when the varying information amount of the number of digitized audio signals selected for recording is smaller than a reserved audio data amount, the encoded digitized video signal can be recorded in a recording area originally provided for recording the number of digitized audio signals selected for recording.
Claim 54
Independent Claim
160 words
A method of decoding encoded signals obtained by encoding a digitized video and a digitized audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) expanding and decoding the encoded digitized video signal with a first variable expansion rate; (b) expanding and decoding the encoded digitized audio signal with a second variable expansion rate; and (c) controlling the first and second expansion rates in said steps (a) and (b) to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 55
Independent Claim
160 words
A method of decoding encoded signals obtained by encoding a digitized video and a digitized audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) expanding and decoding the encoded digitized video signal with a first variable expansion rate; (b) expanding and decoding the encoded digitized audio signal with a second variable expansion rate; and (c) controlling the first and second expansion rates in said steps (a) and (b) to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 56
Dependent Claim
102 words
The method of claim 34, wherein the encoded digitized video signal and the encoded digitized audio signal were recorded so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video information amount, the encoded digitized audio signal is recorded in a recording area originally provided for recording the encoded digitized video signal, and so that when the varying information amount of the encoded digitized audio signal is smaller than a reserved audio information amount, the encoded digitized video signal is recorded in a recording area originally provided for recording the encoded digitized audio signal.
Claim 57
Independent Claim
167 words
A method of decoding encoded signals obtained by encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) decoding the encoded digitized video signal with a variable expansion rate; (b) identifying a number of digitized audio signals to be reproduced from the digitized multi-channel audio signal; and (c) controlling the expansion rate in said steps (a) and (b) according to the number of digitized audio signals to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 58
Independent Claim
167 words
A method of decoding encoded signals obtained by encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) decoding the encoded digitized video signal with a variable expansion rate; (b) identifying a number of digitized audio signals to be reproduced from the digitized multi-channel audio signal; and (c) controlling the expansion rate in said steps (a) and (b) according to the number of digitized audio signals to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 59
Independent Claim
182 words
A method of decoding encoded signals obtained by encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) expanding and decoding the encoded digitized video signal with a first variable expansion rate; (b) identifying a number of digitized audio signals to be reproduced from the encoded digitized multi-channel audio signal; (c) expanding and decoding the number of digitized audio signals with a second variable expansion rate; and (d) controlling the first and second expansion rates in said steps (a) and (c) to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 60
Independent Claim
182 words
A method of decoding encoded signals obtained by encoding a digitized video signal and a digitized multi-channel audio signal at a fixed amount of information per unit time, said method comprising the steps of: (a) expanding and decoding the encoded digitized video signal with a first variable expansion rate; (b) identifying a number of digitized audio signals to be reproduced from the encoded digitized multi-channel audio signal; (c) expanding and decoding the number of digitized audio signals with a second variable expansion rate; and (d) controlling the first and second expansion rates in said steps (a) and (c) to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 61
Dependent Claim
156 words
The method of claim 37, wherein the encoded digitized video signal and the number of digitized audio signals were recorded so that reduction rates of the encoded digitized video signal and encoded digitized multi-channel audio signal increase when a number of audio signal channels selected for encoding increases, and decrease when the number of audio signal channels selected for encoding decreases, so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video information amount, the number of the audio signals selected for encoding can be recorded in a recording area originally provided for recording the encoded digitized video signal and so that when the varying information amount of the number of audio signals selected for encoding is smaller than a reserved audio data amount, the encoded digitized video signals can be recorded in a recording area originally provided for recording the number of audio signals selected for recording.
Claim 62
Independent Claim
132 words
A method comprising the steps of: (a) expanding and decoding an encoded digitized video signal with a first expansion rate; (b) expanding and decoding an encoded digitized audio signal with a second expansion rate; and (c) controlling the first and second expansion rates in said steps (a) and (b) to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 63
Independent Claim
132 words
A method comprising the steps of: (a) expanding and decoding an encoded digitized video signal with a first expansion rate; (b) expanding and decoding an encoded digitized audio signal with a second expansion rate; and (c) controlling the first and second expansion rates in said steps (a) and (b) to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the encoded digitized audio signal was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 64
Dependent Claim
102 words
The method of claim 39, wherein the encoded digitized video signal and the encoded digitized audio signal were recorded so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video data amount, the encoded digitized audio signal is recorded in a recording area originally provided for recording the encoded digitized video signal, and so that when the varying information amount of the encoded digitized audio signal is smaller than a reserved audio data amount, the encoded digitized video signal is recorded in a recording area originally provided for recording the encoded digitized audio signal.
Claim 65
Independent Claim
137 words
A method comprising the steps of: (a) expanding and decoding an encoded digitized video signal with an expansion rate; (b) identifying a number of digitized audio signals to be reproduced from a multi-channel audio signal; and (c) controlling the expansion rate in said step (a) according to the number of digitized audio signals to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 66
Independent Claim
137 words
A method comprising the steps of: (a) expanding and decoding an encoded digitized video signal with an expansion rate; (b) identifying a number of digitized audio signals to be reproduced from a multi-channel audio signal; and (c) controlling the expansion rate in said step (a) according to the number of digitized audio signals to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 67
Independent Claim
149 words
A method comprising the steps of: (a) expanding and decoding an encoded digitized video signal with a first expansion rate; (b) identifying a number of digitized audio signals to be reproduced from a multi-channel audio signal; (c) expanding and decoding the number of audio signals with a second expansion rate; and (d) controlling the first and second expansion rates in said steps (a) and (c) to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 68
Independent Claim
149 words
A method comprising the steps of: (a) expanding and decoding an encoded digitized video signal with a first expansion rate; (b) identifying a number of digitized audio signals to be reproduced from a multi-channel audio signal; (c) expanding and decoding the number of audio signals with a second expansion rate; and (d) controlling the first and second expansion rates in said steps (a) and (c) to decode the encoded digitized video signal and the encoded digitized audio signal, which were encoded by a video encoder and an audio encoder so that a sum of a varying information amount of the encoded digitized video signal and a varying information amount of the number of digitized audio signals was maintained constant; wherein the video encoder was controlled such that a variable amount of the digitized video signal output from the video encoder was dependent on an output of the audio encoder.
Claim 69
Dependent Claim
161 words
The method of claim 42, wherein the encoded digitized video signal and the number of digitized audio signals were recorded so that reduction rates of the encoded digitized video signal and encoded digitized multi-channel audio signal increase when a number of digitized audio signal channels selected for recording increases, and decrease when the number of digitized audio signal channels selected for recording decreases, so that when the varying information amount of the encoded digitized video signal is smaller than a reserved video data amount, the number of the digitized audio signals selected for recording can be recorded in a recording area originally provided for recording the encoded digitized video signal and so that when the varying information amount of the number of digitized audio signals selected for recording is smaller than a reserved audio data amount, the encoded digitized video signal can be recorded in a recording area originally provided for recording the number of digitized audio signals selected for recording.
Claim 70
Dependent Claim
187 words
A digital signal recording apparatus for compressing and encoding digital video signals and multi-channel digital audio signals input within a unit time for recording on a recording medium, comprising: first encoding means for compressing and encoding the digital video signals with a variable reduction rate; audio selecting means for selecting digital audio signal channels to be recorded from the multi-channel digital audio signals; second encoding means for encoding the selected digital audio signal channels; recording means for recording the encoded digital video signals and the encoded digital audio signals; and control means for controlling the variable reduction rate of the digital video signals in said first encoding means according to a number of the selected audio signal channels so that a sum of a varying information amount of the encoded digital video signals and a varying information amount of the encoded digital audio signals is maintained within a predetermined amount of data range; said control means controlling said first encoding means such that a variable amount of the digital video signals output from said first encoding means is dependent on an output of said second encoding means.
Claim 71
Dependent Claim
187 words
A digital signal recording apparatus for compressing and encoding digital video signals and multi-channel digital audio signals input within a unit time for recording on a recording medium, comprising: first encoding means for compressing and encoding the digital video signals with a variable reduction rate; audio selecting means for selecting digital audio signal channels to be recorded from the multi-channel digital audio signals; second encoding means for encoding the selected digital audio signal channels; recording means for recording the encoded digital video signals and the encoded digital audio signals; and control means for controlling the variable reduction rate of the digital video signals in said first encoding means according to a number of the selected audio signal channels so that a sum of a varying information amount of the encoded digital video signals and a varying information amount of the encoded digital audio signals is maintained within a predetermined amount of data range; said control means controlling said first encoding means such that a variable amount of the digital video signals output from said first encoding means is dependent on an output of said second encoding means.
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| 11.5 Years (Year 12) | 2010-04-05 | 2010-10-05 | 2011-04-06 | $7700.00 | Window Closed / Lapsed |