US3821786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video transducing apparatus
Assignee: ITT Research Institute
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Filing: 1971-09-20
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Granted: 1974-06-28
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Expires: 1991-09-20
Abstract
Abstract MONOCHROME AND COLOR TELEVISION RECORDING AND PLAYBACK CIRCUITRY FOR COUPLING OF A VIDEO MAGNETIC TRANSDUCER HEAD WITH A STANDARD BROADCAST TELEVISION RECEIVER THE RECEIVER HAVING A MATRIXING CIRCUIT WITH X AND Z INPUTS AND R-Y, G-Y AND B-Y OUTPUTS, AND THE HEAD PLAYBACK AMPLIFIER SUPPLYING R-Y AND B-Y SIGNALS TO THE X AND Z INPUTS OF THE MATRIXING CIRCUIT DURING REPRODUCTION OF COLOR TELEVISION SIGNALS FROM THE RECORD MEDIUM.
Inventors
- 👤 M Camras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:28
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/79; H04N9/80; H04N9/82; H04N9/825; H04N5/00; H04N5/76; H04N5/765; H04N5/775
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |