US3246080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping circuit
Assignee: RCA Corp
•
Filing: 1963-10-18
•
Granted: 1966-04-12
•
Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas W Ritchey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:50
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/16; H04N5/18; H04N5/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN A SYSTEM FOR PROCESSING VIDEO SIGNALS, SAID VIDEO SIGNALS COMPRISING SUCCESSIVE SCANLINES OF IMAGE SIGNALS SEPARATED BY BLANKING PULSES, THE COMBINATION OF, MEANS FOR DERIVING A CONTROL VOLTAGE WHICH IS A FUNCTION OF THE PEAK SIGNAL STRENGTH OF SAID IMAGE SIGNALS, A DIODE-TRANSISTOR BRIDGE NETWORK COUPLED TO CLAMP SAID VIDEO SIGNALS, AND
Claim 2
Dependent Claim
53 words
IN A SYSTEM FOR PROCESSING VIDEO SIGNALS, SAID VIDEO SIGNALS COMPRISING SUCCESSIVE SCANLINES OF IMAGE SIGNALS SEPARATED BY BLANKING PULSES, THE COMBINATION OF, MEANS FOR DERIVING A CONTROL VOLTAGE WHICH IS A FUNCTION OF THE PEAK SIGNAL STRENGTH OF SAID IMAGE SIGNALS, A DIODE-TRANSISTOR BRIDGE NETWORK COUPLED TO CLAMP SAID VIDEO SIGNALS, AND
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |