US3402256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fm video recording with white level clamping
Assignee: Victor Company of Japan Ltd
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Filing: 1965-03-31
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Granted: 1968-09-17
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Expires: 1985-03-31
Abstract
No abstract record available.
Inventors
- 👤 Yokohama Hisao Kinjo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:14
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN A SYSTEM FOR TRANSLATING A VIDEO SIGNAL HAVING AN AMPLITUDE VARYING BETWEEN A FIRST LIMIT DEFINED BY SYNCHRONIZING PULSES AND A SECOND LIMIT CORRESPONDING TO MAXIMUM VIDEO INFORMATION, MEANS RESPONSIVE TO SAID VIDEO SIGNAL FOR PRODUCING A FREQUENCY MODULATED CARRIER SIGNAL VARYING IN FREQUENCY BETWEEN TWO LIMITS RESPECTIVELY CORRESPONDING TO SAID FIRST AND SECOND AMPLITUDE LIMITS, AND LEVEL FIXING MEANS FOR FIXING THE LEVEL OF SAID VIDEO SIGNAL DURING INTERVALS AT WHICH SAID VIDEO SIGNAL IS AT SAID SECOND LIMIT TO THEREBY FIX THE FREQUENCY OF SAID CARRIER SIGNAL AT A CERTAIN VALUE DURING SAID INTERVALS.
Claim 2
Dependent Claim
97 words
IN A SYSTEM FOR TRANSLATING A VIDEO SIGNAL HAVING AN AMPLITUDE VARYING BETWEEN A FIRST LIMIT DEFINED BY SYNCHRONIZING PULSES AND A SECOND LIMIT CORRESPONDING TO MAXIMUM VIDEO INFORMATION, MEANS RESPONSIVE TO SAID VIDEO SIGNAL FOR PRODUCING A FREQUENCY MODULATED CARRIER SIGNAL VARYING IN FREQUENCY BETWEEN TWO LIMITS RESPECTIVELY CORRESPONDING TO SAID FIRST AND SECOND AMPLITUDE LIMITS, AND LEVEL FIXING MEANS FOR FIXING THE LEVEL OF SAID VIDEO SIGNAL DURING INTERVALS AT WHICH SAID VIDEO SIGNAL IS AT SAID SECOND LIMIT TO THEREBY FIX THE FREQUENCY OF SAID CARRIER SIGNAL AT A CERTAIN VALUE DURING SAID INTERVALS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |