US3149288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video processing circuit employing pulse stretcher and delay-line to automatically control clipping level of input signals
Assignee: Individual
•
Filing: 1960-09-29
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Granted: 1964-09-15
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Expires: 1980-09-29
Abstract
No abstract record available.
Inventors
- 👤 Laddie T Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:08
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN A SIGNAL PROCESSING CIRCUIT, INPUT SIGNAL MEANS, A DELAY LINE CONNECTED TO SAID INPUT SIGNAL MEANS, THE LENGTH OF SAID DELAY LINE BEING APPROXIMATELY EQUAL TO THE RISE TIME OF SAID INPUT SIGNAL, PULSE STRETCHING MEANS HAVING TWO DIODES CONNECTED TO THE ENDS OF SAID DELAY LINE, AMPLIFIER MEANS HAVING FIRST AND SECOND CONTROL ELEMENTS, MEANS CONNECTING SAID PULSE STRETCHING MEANS TO SAID FIRST CONTROL ELEMENT, MEANS CONNECTING A POINT IN THE MID-PORTION OF SAID DELAY LINE TO SAID SECOND CONTROL ELEMENT AND OUTPUT MEANS CONNECTED TO SAID AMPLIFIER MEANS.
Claim 2
Dependent Claim
91 words
IN A SIGNAL PROCESSING CIRCUIT, INPUT SIGNAL MEANS, A DELAY LINE CONNECTED TO SAID INPUT SIGNAL MEANS, THE LENGTH OF SAID DELAY LINE BEING APPROXIMATELY EQUAL TO THE RISE TIME OF SAID INPUT SIGNAL, PULSE STRETCHING MEANS HAVING TWO DIODES CONNECTED TO THE ENDS OF SAID DELAY LINE, AMPLIFIER MEANS HAVING FIRST AND SECOND CONTROL ELEMENTS, MEANS CONNECTING SAID PULSE STRETCHING MEANS TO SAID FIRST CONTROL ELEMENT, MEANS CONNECTING A POINT IN THE MID-PORTION OF SAID DELAY LINE TO SAID SECOND CONTROL ELEMENT AND OUTPUT MEANS CONNECTED TO SAID AMPLIFIER MEANS.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |