US4065795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording technique for an audio/video program wherein the audio incorporates video change signals
Assignee: Westinghouse Electric Corp
•
Filing: 1975-12-04
•
Granted: 1977-12-27
•
Expires: 1995-12-04
Abstract
Abstract In the recording of audio-video programs in which the audio is time-compressed and converted into television format, the video frames associated with a given audio frame are recorded in a group immediately following the audio frame, and picture-change cue signals are recorded at selected lines within the audio frame so that on playback, displayed video can be changed at preselected points in the audio frame playback. A number of video frames can be recorded between successive audio frames wihtout introducing any discontinuity in audio playback.
Inventors
- 👤 Harold B. Shutterly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:28
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9202; H04N5/9203; G; G11; G11B; G11B20/00; G11B20/00007; H04N1/00; H04N1/32; H04N1/32101; H04N1/32106; H04N1/32117; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3261; H04N2201/3264
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
89 words
A method for recording the audio frames or fields and the video frames or fields of an audio/video program on a sequential access storage medium, comprising the steps of: recording audio frames consisting of compressed audio information in television line format on the sequential access storage medium, inserting video change signals at predetermined locations within the recorded audio frames, and recording video frames corresponding in number to said predetermined number of video change signals in a sequential manner on said sequential access storage medium following said recorded audio frames.
Claim 2
Independent Claim
89 words
A method for recording the audio frames or fields and the video frames or fields of an audio/video program on a sequential access storage medium, comprising the steps of: recording audio frames consisting of compressed audio information in television line format on the sequential access storage medium, inserting video change signals at predetermined locations within the recorded audio frames, and recording video frames corresponding in number to said predetermined number of video change signals in a sequential manner on said sequential access storage medium following said recorded audio frames.
Claim 3
Dependent Claim
94 words
Apparatus for recording the audio frames or fields and the video frames or fields of an audio/video program on a sequential access storage medium, comprising: first means for recording audio frames consisting of compressed audio information in television line format on the sequential access storage medium, second means for inserting video change signals at predetermined locations within the recorded audio frames, and third means for recording video frames corresponding in number to said predetermined number of video change signals in a sequential manner on said sequential access storage medium following said recorded audio frames.
Claim 4
Dependent Claim
94 words
Apparatus for recording the audio frames or fields and the video frames or fields of an audio/video program on a sequential access storage medium, comprising: first means for recording audio frames consisting of compressed audio information in television line format on the sequential access storage medium, second means for inserting video change signals at predetermined locations within the recorded audio frames, and third means for recording video frames corresponding in number to said predetermined number of video change signals in a sequential manner on said sequential access storage medium following said recorded audio frames.
Claim 5
Dependent Claim
88 words
Apparatus as claimed in claim 2 wherein said sequential access storage medium includes a disc having a plurality of tracks, each of said audio frames being recorded on a track, said video frames corresponding to the predetermined number of video change signals of the recorded audio frame being recorded on a sequential number of tracks immediately following the audio frame track, the number of tracks for recording said video frames corresponding to said predetermined number of video change cue signals, each video frame being recorded on a track.
References Cited (Backward Citations)
US3085130A
Cited
US3715481A
Cited
US3934268A
Cited
US3878560A
Cited
US3789137A
Cited
US3922715A
Cited
US3909512A
Cited
US3938189A
Cited
US3872503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |