EP0381807A2
Expired / Lapsed
EP
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Method and apparatus for recording and reproducing information including plural channel audio signals
Assignee: Pioneer Corp
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Filing: 1989-07-27
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Granted: —
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Expires: 2009-07-27
Abstract
Abstract A method for recording and reproducing information including plural channel audio signals on and from a recording medium. A sampling operation at a predetermined sampling frequency is respectively performed against plural channel audio signals, a modulation operation of a predetermined modulation system is performed respectively for each of a plurality of channels of the sampled data, an identification code identifying each channel is added to each of plural channel coded information signals, and subsequently the coded information signals are multiplexed by a time division multiplexing operation and recorded on the recording medium together with one channel analog audio signal or by themselves. At the time of play-back, at least two of the plural channel coded information signals designated by a selection command or at least two of the plural channel coded information signals and the one channel analog audio signal designated by the selection command selectively decoded arbitrarily using the identification code, and a reproduction signal is generated by mixing the at least two channels of audio signal. With this feature, a single disc can be used for recording a program having multilingual audio signals.
Inventors
- 👤 Junichi Yoshio
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 17:54
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/79; H04N9/80; H04N9/802; G; G11; G11B; G11B20/00; G11B20/10; G11B20/10527; G11B27/00; G11B27/02; G11B27/031; G11B27/034; H04N21/00; H04N21/40; H04N21/41; H04N21/426; H04N21/42646; H04N21/43; H04N21/432; H04N21/4325; H04N21/433; H04N21/4334; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9202; H04N5/9204; H04N5/9206; H04N5/9208; G11B2020/10537; G11B2020/10592; G11B2220/00; G11B2220/20; G11B2220/21; G11B2220/215; G11B2220/218; G11B2220/25; G11B2220/2537; G11B2220/2545
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
147 words
A method for recording and reproducing information including N (N is an integer equal to or greater than 3) channel audio signals on and from a recording medium, comprising the steps of: sampling said N channel audio signals respectively at a predetermined sampling rate; modulating each of N channel data obtained by the sampling step, by using a predetermined digital modulation process; recording N channel coded information signals obtained by the modulating step on said recording medium by using a time division multiplex process after adding an identification code for identifying each channel to each of said N channel coded information signals; at the time of reproduction, selectively demodulating at least two of said N channel coded information signal in response to a selecting command by using said identification code; and producing a reproduction signal by combining at least to audio signals obtained by the demodulating step.
Claim 2
Independent Claim
147 words
A method for recording and reproducing information including N (N is an integer equal to or greater than 3) channel audio signals on and from a recording medium, comprising the steps of: sampling said N channel audio signals respectively at a predetermined sampling rate; modulating each of N channel data obtained by the sampling step, by using a predetermined digital modulation process; recording N channel coded information signals obtained by the modulating step on said recording medium by using a time division multiplex process after adding an identification code for identifying each channel to each of said N channel coded information signals; at the time of reproduction, selectively demodulating at least two of said N channel coded information signal in response to a selecting command by using said identification code; and producing a reproduction signal by combining at least to audio signals obtained by the demodulating step.
Claim 3
Dependent Claim
74 words
A recording and reproducing method as claimed in claim 1, wherein control information for controlling operations of reading information recorded on said recording medium is included in each of said N channel coded information signals when said N channel coded information signals are recorded on said recording medium, and, at the time of reproduction, the order of reproduction of the information recorded on said recording medium is controlled in accordance with said control information.
Claim 4
Dependent Claim
52 words
A recording and reproducing method as claimed in claim 1, wherein a multiplex signal obtained by said time division multiplex process of said coded information signals and a video signal to be reproduced at the same time are multiplexed and recorded on said recording medium by using a frequency division multiplex process.
Claim 5
Dependent Claim
75 words
A recording and reproducing method as claimed in claim 1, wherein a plurality of graphics codes respectively including each of a plural channel picture information corresponding to said N channels and said identification code are recorded on said recording medium as a subcode of said coded information signal, and at the time of reproduction, one of said plurality of graphics codes is selectively demodulated in response to a selection command by using said identification code.
Claim 6
Independent Claim
98 words
A method for recording information including N (N is an integer equal to or greater than 3) channel audio signals on a recording medium, comprising the steps of: sampling said N channel audio signals respectively at a predetermined sampling rate; modulating each of N channel data obtained by the sampling step, by using a predetermined digital modulation process; recording N channel coded information signals obtained by the modulating step on said recording medium by using a time division multiplex process after adding an identification code for identifying each channel to each of said N channel coded information signals.
Claim 7
Independent Claim
98 words
A method for recording information including N (N is an integer equal to or greater than 3) channel audio signals on a recording medium, comprising the steps of: sampling said N channel audio signals respectively at a predetermined sampling rate; modulating each of N channel data obtained by the sampling step, by using a predetermined digital modulation process; recording N channel coded information signals obtained by the modulating step on said recording medium by using a time division multiplex process after adding an identification code for identifying each channel to each of said N channel coded information signals.
Claim 8
Dependent Claim
84 words
An information reproducing method for playing a recording medium on which N (N is an integer equal to or greater than 3) channel coded information signals each including audio information and an identification code added to each signal are recorded, comprising the steps of; selectively demodulating at least two of said N channel coded information signals in response to a selecting command by using said identification code; and producing a reproduction signal by combining at least to audio signals obtained by the demodulating step.
Claim 9
Dependent Claim
84 words
An information reproducing method for playing a recording medium on which N (N is an integer equal to or greater than 3) channel coded information signals each including audio information and an identification code added to each signal are recorded, comprising the steps of; selectively demodulating at least two of said N channel coded information signals in response to a selecting command by using said identification code; and producing a reproduction signal by combining at least to audio signals obtained by the demodulating step.
Claim 10
Independent Claim
133 words
An apparatus for recording information including N (N is an integer equal to or greater than 3) channel audio signals on a recording medium comprising: a sampling means for sampling said N channel audio signals at a predetermined sampling rate; a digital modulation means for respectively modulating N channel data obtained by said sampling means by using a predetermined digital modulation process; an identification code adding means for adding an identification code for identifying each channel to each of N channel coded information signals obtained by said digital modulation means; a multiplexing means for multiplexing said N channel coded information signals to which said identification signal is added respectively, by using a time division multiplexing process; and a recording means for recording an output signal of said multiplexing means on said recording medium.
Claim 11
Independent Claim
133 words
An apparatus for recording information including N (N is an integer equal to or greater than 3) channel audio signals on a recording medium comprising: a sampling means for sampling said N channel audio signals at a predetermined sampling rate; a digital modulation means for respectively modulating N channel data obtained by said sampling means by using a predetermined digital modulation process; an identification code adding means for adding an identification code for identifying each channel to each of N channel coded information signals obtained by said digital modulation means; a multiplexing means for multiplexing said N channel coded information signals to which said identification signal is added respectively, by using a time division multiplexing process; and a recording means for recording an output signal of said multiplexing means on said recording medium.
Claim 12
Dependent Claim
45 words
A recording medium on which N (N is an integer equal to or greater than 3) channel coded information signals each including audio information and an identification code added to each signal, and a video signal, being multiplexed by a frequency division multiplexing, are recorded.
Claim 13
Dependent Claim
45 words
A recording medium on which N (N is an integer equal to or greater than 3) channel coded information signals each including audio information and an identification code added to each signal, and a video signal, being multiplexed by a frequency division multiplexing, are recorded.
Claim 14
Independent Claim
127 words
An apparatus for playing a recording medium on which N (N is an integer equal to or greater than 3) channel coded information signals each including audio information and an identification code added to each signal are recorded, comprising a signal detection means for detecting a recording signal recorded on said recording medium; a command means for generating a selection command for selecting at least two of said N channels; a demodulation means for selectively demodulating at least two of said N channel coded information signals from an output signal of said signal detection means in response to said selection command by using said identification code; and a mixing means for producing a reproduction signal by combining at least two audio signals obtained by said demodulation means.
Claim 15
Independent Claim
127 words
An apparatus for playing a recording medium on which N (N is an integer equal to or greater than 3) channel coded information signals each including audio information and an identification code added to each signal are recorded, comprising a signal detection means for detecting a recording signal recorded on said recording medium; a command means for generating a selection command for selecting at least two of said N channels; a demodulation means for selectively demodulating at least two of said N channel coded information signals from an output signal of said signal detection means in response to said selection command by using said identification code; and a mixing means for producing a reproduction signal by combining at least two audio signals obtained by said demodulation means.
Claim 16
Independent Claim
161 words
A method for recording and reproducing information including M (M is an integer equal to or greater than 2) channel audio signals on and from a recording medium, comprising the steps of: sampling said M channel audio signals respectively at a predetermined sampling rate; modulating each of M channel data obtained by the sampling step, by using a predetermined digital modulation process; recording M channel coded information signals obtained by the modulating step together with one channel analog audio signal on said recording medium by using a time division multiplex process after adding an identification code for identifying each channel to each of said M channel coded information signals; at the time of reproduction, selectively demodulating at least two of said M channel coded information signals and said one channel analog audio signal in response to a selecting command by using said identification code; and producing a reproduction signal by combining at least to audio signals obtained by the demodulating step.
Claim 17
Independent Claim
161 words
A method for recording and reproducing information including M (M is an integer equal to or greater than 2) channel audio signals on and from a recording medium, comprising the steps of: sampling said M channel audio signals respectively at a predetermined sampling rate; modulating each of M channel data obtained by the sampling step, by using a predetermined digital modulation process; recording M channel coded information signals obtained by the modulating step together with one channel analog audio signal on said recording medium by using a time division multiplex process after adding an identification code for identifying each channel to each of said M channel coded information signals; at the time of reproduction, selectively demodulating at least two of said M channel coded information signals and said one channel analog audio signal in response to a selecting command by using said identification code; and producing a reproduction signal by combining at least to audio signals obtained by the demodulating step.
Claim 18
Dependent Claim
74 words
A recording and reproducing method as claimed in claim 10, wherein control information for controlling operations of reading information recorded on said recording medium is included in each of said M channel coded information signals when said M channel coded information signals are recorded on said recording medium, and, at the time of reproduction, the order of reproduction of the information recorded on said recording medium is controlled in accordance with said control information.
Claim 19
Dependent Claim
52 words
A recording and reproducing method as claimed in claim 10, wherein a multiplex signal obtained by said time division multiplex process of said coded information signals and a video signal to be reproduced at the same time are multiplexed and recorded on said recording medium by using a frequency division multiplex process.
Claim 20
Dependent Claim
74 words
A recording and reproducing method as claimed in claim 10, wherein a plurality of graphics codes respectively including each of plural channel picture information corresponding to said M channels and said identification code are recorded on said recording medium as a subcode of said coded information signals, and at the time of reproduction, one of said plurality of graphics codes is selectively demodulated in response to a selection command by using said identification code.
Claim 21
Independent Claim
105 words
A method for recording information including M (M is an integer equal to or greater than 2) channel audio signals on a recording medium, comprising the steps of: sampling said M channel audio signals respectively at a predetermined sampling rate; modulating each of M channel data obtained by the sampling step, by using a predetermined digital modulation process; recording M channel coded information signals obtained by the modulating step together with one channel analog audio signal on said recording medium by using a time division multiplex process after adding an identification code for identifying each channel to each of said M channel coded information signals.
Claim 22
Independent Claim
105 words
A method for recording information including M (M is an integer equal to or greater than 2) channel audio signals on a recording medium, comprising the steps of: sampling said M channel audio signals respectively at a predetermined sampling rate; modulating each of M channel data obtained by the sampling step, by using a predetermined digital modulation process; recording M channel coded information signals obtained by the modulating step together with one channel analog audio signal on said recording medium by using a time division multiplex process after adding an identification code for identifying each channel to each of said M channel coded information signals.
Claim 23
Dependent Claim
97 words
An information reproducing method for playing a recording medium on which M (M is an integer equal to or greater than 2) channel coded information signals each including audio information and an identification code added to each signal and one channel analog audio signal are recorded, comprising the steps of; selectively demodulating at least two of said M channel coded information signals and said one channel analog audio signal in response to a selecting command by using said identification code; and producing a reproduction signal by combining at least to audio signals obtained by the demodulating step.
Claim 24
Dependent Claim
97 words
An information reproducing method for playing a recording medium on which M (M is an integer equal to or greater than 2) channel coded information signals each including audio information and an identification code added to each signal and one channel analog audio signal are recorded, comprising the steps of; selectively demodulating at least two of said M channel coded information signals and said one channel analog audio signal in response to a selecting command by using said identification code; and producing a reproduction signal by combining at least to audio signals obtained by the demodulating step.
Claim 25
Independent Claim
143 words
An apparatus for recording information including M (M is an integer equal to or greater than 2) channel audio signals on a recording medium comprising: a sampling means for sampling said M channel audio signals at a predetermined sampling rate; a digital modulation means for respectively modulating M channel data obtained by said sampling means by using a predetermined digital modulation process; an identification code adding means for adding an identification code for identifying each channel to each of M channel coded information signals obtained by said digital modulation means; a multiplexing means for multiplexing said M channel coded information signals to which said identification signal is added respectively and a signal corresponding to one channel analog audio signal, by using a time division multiplexing process; and a recording means for recording an output signal of said multiplexing means on said recording medium.
Claim 26
Independent Claim
143 words
An apparatus for recording information including M (M is an integer equal to or greater than 2) channel audio signals on a recording medium comprising: a sampling means for sampling said M channel audio signals at a predetermined sampling rate; a digital modulation means for respectively modulating M channel data obtained by said sampling means by using a predetermined digital modulation process; an identification code adding means for adding an identification code for identifying each channel to each of M channel coded information signals obtained by said digital modulation means; a multiplexing means for multiplexing said M channel coded information signals to which said identification signal is added respectively and a signal corresponding to one channel analog audio signal, by using a time division multiplexing process; and a recording means for recording an output signal of said multiplexing means on said recording medium.
Claim 27
Dependent Claim
50 words
A recording medium on which M (M is an integer equal to or greater than 2) channel coded information signals each including audio information and an identification code added to each signal, one channel analog audio signal, and a video signal, being multiplexed by a frequency division multiplexing, are recorded.
Claim 28
Dependent Claim
50 words
A recording medium on which M (M is an integer equal to or greater than 2) channel coded information signals each including audio information and an identification code added to each signal, one channel analog audio signal, and a video signal, being multiplexed by a frequency division multiplexing, are recorded.
Claim 29
Independent Claim
146 words
An apparatus for playing a recording medium on which M (M is an integer equal to or greater than 2) channel coded information signals each including audio information and an identification code added to each signal and one channel analog audio signal are are recorded, comprising a signal detection means for detecting a recording signal recorded on said recording medium; a command means for generating a selection command for selecting at least two of said M channel and said one channel; a demodulation means for selectively demodulating at least two of said M channel said coded information signals and said one channel analog audio signal from an output signal of said signal detection means in response to said selection command by using said identification code; and a mixing means for producing a reproduction signal by combining at least two audio signals obtained by said demodulation means.
Claim 30
Independent Claim
146 words
An apparatus for playing a recording medium on which M (M is an integer equal to or greater than 2) channel coded information signals each including audio information and an identification code added to each signal and one channel analog audio signal are are recorded, comprising a signal detection means for detecting a recording signal recorded on said recording medium; a command means for generating a selection command for selecting at least two of said M channel and said one channel; a demodulation means for selectively demodulating at least two of said M channel said coded information signals and said one channel analog audio signal from an output signal of said signal detection means in response to said selection command by using said identification code; and a mixing means for producing a reproduction signal by combining at least two audio signals obtained by said demodulation means.
References Cited (Backward Citations)
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