US4134130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus of inserting an address signal in a video signal
Assignee: Sony Corp
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Filing: 1977-07-26
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Granted: 1979-01-09
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Expires: 1997-07-26
Abstract
Abstract Method and apparatus for inserting an address signal in a video signal by compressing the SMPTE (Society of Motion Picture And Television Engineers) time code signal and then inserting the compressed time code signal into three successive vertical blanking periods of the video signal. The invention allows the time code signals to be reconstructed where the record medium is stopped or transported at very low speeds.
Inventors
- 👤 Katsuichi Tachi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:08
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/005; G11B27/00; G11B27/02; G11B27/022; G11B27/024; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3036; G11B27/3054; G11B27/32; G11B27/322; G11B27/323; G11B27/34
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
82 words
A video signal reproducing system comprising: (a) a tape, (b) means for reproducing a video signal recorded on said tape, said video signal having a first address signal inserted in the vertical blanking period of said video signal, (c) means for reproducing a second address signal recorded on a longitudinal track of said tape, (d) means for selecting one of said first and second address signals, and (e) means for controlling said selecting means corresponding to the moving speed of said tape.
Claim 2
Dependent Claim
82 words
A video signal reproducing system comprising: (a) a tape, (b) means for reproducing a video signal recorded on said tape, said video signal having a first address signal inserted in the vertical blanking period of said video signal, (c) means for reproducing a second address signal recorded on a longitudinal track of said tape, (d) means for selecting one of said first and second address signals, and (e) means for controlling said selecting means corresponding to the moving speed of said tape.
Claim 3
Dependent Claim
23 words
A video signal reproducing system claimed in claim 1 which further includes means for displaying an address corresponding to said selected address signal.
Claim 4
Dependent Claim
25 words
A video signal reproducing system claimed in claim 1 wherein said controlling means includes means for detecting the frequency of said reproduced second address signal.
Claim 5
Dependent Claim
44 words
A video signal reproducing system claimed in claim 1 wherein a control signal is recorded on a longitudinal track of said tape, means provided for reproducing said control signal, and said controlling means includes means for detecting the frequency of said reproduced control signal.
Claim 6
Dependent Claim
24 words
A video signal reproducing system claimed in claim 1 wherein said first address signal is repeatedly inserted in one field or frame video signals.
Claim 7
Dependent Claim
34 words
A system claimed in claim 5 which includes means for reproducing said repeated first address signals and means for selecting a correct first address signal based upon comparing the correlation of said address signals.
References Cited (Backward Citations)
US3493674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |