US4672471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for storing in a first set of consecutive tracks a single still picture and in a second set of consecutive tracks corresponding digital audio with track number information included therein
Assignee: Sony Corp
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Filing: 1984-05-02
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Granted: 1987-06-09
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Expires: 2004-05-02
Abstract
Abstract The video information corresponding to a still picture is recorded along a track of the video disc at a first set of preselected track locations and a digitized and compressed audio signal relating to the still picture is recorded along the track of the video disc at a second set of preselected track locations. The data amount of the audio signal in each track is equal to the first data amount within which the audio data is interleaved for error correction. At the beginning of each of the tracks of the second set of preselected track locations, track number information is recorded representing the number of tracks in which the audio signal relating to the single still picture is recorded. The data amount of the track number information is the difference between the second data amount capable of recording in each track of the second set of preselected track locations and the first data amount.
Inventors
- 👤 Seiichi Gouda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:27
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32106; H04N1/32117; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3261; H04N2201/3264
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
165 words
A method of storing video and audio signals on a video disc comprising the steps of: recording video information corresponding to a singal still picture along at least three consecutive tracks of said video disc; recording a digitized and compressed audio signal relating to said still picture on said video disc at a second set of preselected track locations; the amount of data in said audio signal in each track location being equal to a first amount of data within which said audio data is interleaved for error correction; and recording track number information representing the number of tracks in which said audio signal relating to the single still picture is recorded at the beginning of each of said tracks of said second set of preselected track locations, the amount of data in said track number information being the difference between the amount of data capable of being recorded in each track of said second set of preselected track locations and said first data amount.
Claim 2
Independent Claim
165 words
A method of storing video and audio signals on a video disc comprising the steps of: recording video information corresponding to a singal still picture along at least three consecutive tracks of said video disc; recording a digitized and compressed audio signal relating to said still picture on said video disc at a second set of preselected track locations; the amount of data in said audio signal in each track location being equal to a first amount of data within which said audio data is interleaved for error correction; and recording track number information representing the number of tracks in which said audio signal relating to the single still picture is recorded at the beginning of each of said tracks of said second set of preselected track locations, the amount of data in said track number information being the difference between the amount of data capable of being recorded in each track of said second set of preselected track locations and said first data amount.
Claim 3
Dependent Claim
31 words
A method according to claim 1, wherein a header mark signal is recorded at the beginning portion of the first track for the audio signal relating to the single still picture.
Claim 4
Dependent Claim
31 words
A method according to claim 1, wherein an end mark signal is recorded at the end portion of the last track for the audio signal relating to the single still picture.
Claim 5
Dependent Claim
157 words
A video disc for storing video and audio signals thereon comprising: a first set of preselected track locations at which the same video information corresponding to a single still picture is recorded repeatedly along at least three consecutive tracks; and a second set of preselected track locations at which a digitized and compressed audio signal relating to the single still picture is recorded along a plurality of tracks, track number information representing the number of tracks in which said audio signal relating to the single still picture is recorded being recorded at the beginning of each of said tracks at said second set of preselected track locations, and the amount of data in said track number information being the difference between the amount of data capable of being recorded in each track of said second set of preselected track locations and the amount of recorded audio data within which said audio data is interleaved for error correction.
Claim 6
Dependent Claim
157 words
A video disc for storing video and audio signals thereon comprising: a first set of preselected track locations at which the same video information corresponding to a single still picture is recorded repeatedly along at least three consecutive tracks; and a second set of preselected track locations at which a digitized and compressed audio signal relating to the single still picture is recorded along a plurality of tracks, track number information representing the number of tracks in which said audio signal relating to the single still picture is recorded being recorded at the beginning of each of said tracks at said second set of preselected track locations, and the amount of data in said track number information being the difference between the amount of data capable of being recorded in each track of said second set of preselected track locations and the amount of recorded audio data within which said audio data is interleaved for error correction.
Claim 7
Dependent Claim
233 words
Apparatus for reproducing video and audio signals from a video disc on which video information corresponding to a single still picture is recorded repeatedly along at least three consecutive tracks at a first set of preselected track locations and a digitized and compressed audio signal relating to the still picture is recorded along tracks at a second set of preselected track locations and track number information representing the number of tracks in which said audio signal is recorded is recorded at the beginning of each of said tracks of said second set of preselected track locations, comprising: a reading head for reading the signal recorded on said disc; a head control device for controlling the movement of said reading head; a video signal processing circuit for processing a video signal from said reading head; a muting circuit connected between said reading head and said video signal processing circuit for muting an output signal from said reading head while the digitized audio signal is read out from said disc; a memory for storing the read out audio signal and for generating a time expanded audio signal; a signal separator for separating said track number information from an output of said memory; a decoder for decoding said track number information; and a memory control circuit supplied with the output of said decoder for generating a memory control signal controlling the reading out of said memory.
Claim 8
Dependent Claim
233 words
Apparatus for reproducing video and audio signals from a video disc on which video information corresponding to a single still picture is recorded repeatedly along at least three consecutive tracks at a first set of preselected track locations and a digitized and compressed audio signal relating to the still picture is recorded along tracks at a second set of preselected track locations and track number information representing the number of tracks in which said audio signal is recorded is recorded at the beginning of each of said tracks of said second set of preselected track locations, comprising: a reading head for reading the signal recorded on said disc; a head control device for controlling the movement of said reading head; a video signal processing circuit for processing a video signal from said reading head; a muting circuit connected between said reading head and said video signal processing circuit for muting an output signal from said reading head while the digitized audio signal is read out from said disc; a memory for storing the read out audio signal and for generating a time expanded audio signal; a signal separator for separating said track number information from an output of said memory; a decoder for decoding said track number information; and a memory control circuit supplied with the output of said decoder for generating a memory control signal controlling the reading out of said memory.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-08 | 1990-12-08 | 1991-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-08 | 1994-12-08 | 1995-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-08 | 1998-12-08 | 1999-06-09 | $7700.00 | Window Closed / Lapsed |