Patent US3270126A successfully refreshed from Google Patents.
US3270126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color matrix including negative feedback and a cross-feed connection
Assignee: RCA Corp
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Filing: 1963-03-18
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Granted: 1966-08-30
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Paul E Crookshanks
- 👤 Thornley C Jobe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:48
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/64; H04N9/67
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
IN A COLOR TELEVISION RECEIVER INCLUDING A SOURCE OF A FIRST COLOR DIFFERENCE SIGNAL, AND A SOURCE OF A SECOND COLOR DIFFERENCE SIGNAL, MATRIXING APPARATUS COMPRISING THE COMBINATION OF A TRIO OF AMPLIFYING DEVICES, EACH INCLUDING AN INPUT ELECTRODE, AN OUTPUT ELECTRODE AND A COMMON ELECTRODE; AN IMPEDANCE; MEANS FOR UTILIZING SAID IMPEDANCE FOR RETURNING THE COMMON ELECTRODES OF ALL OF SAID AMPLIFYING DEVICES, IN COMMON, TO A POINT OF REFERENCE POTENTIAL; RESPECTIVE MEANS ASSOCIATED WITH THE OUTPUT ELECTRODES OF SAID DEVICES FOR PROVIDING EACH AMPLIFYING DEVICE WITH A SEPARATE OUTPUT CIRCUIT; MEANS FOR COUPLING THE INPUT ELECTRODE OF A FIRST ONE OF SAID TRIO OF AMPLIFYING DEVICES TO SAID FIRST COLOR DIFFERENCE SIGNAL SOURCE; MEANS FOR COUPLING THE INPUT ELECTRODE OF A SECOND ONE OF SAID AMPLIFYING DEVICES TO SAID SECOND COLOR DIFFERENCE SIGNAL SOURCE; MEANS FOR RETURNING THE INPUT ELECTRODE OF THE REMAINING ONE OF SAID AMPLIFYING DEVICES TO SAID POINT OF REFERENCE POTENTIAL; AND MEANS FOR COUPLING SIGNALS FROM THE OUTPUT ELECTRODE OF SAID FIRST AMPLIFYING DEVICE TO THE INPUT ELECTRODE OF SAID REMAINING DEVICE.
Claim 2
Dependent Claim
178 words
IN A COLOR TELEVISION RECEIVER INCLUDING A SOURCE OF A FIRST COLOR DIFFERENCE SIGNAL, AND A SOURCE OF A SECOND COLOR DIFFERENCE SIGNAL, MATRIXING APPARATUS COMPRISING THE COMBINATION OF A TRIO OF AMPLIFYING DEVICES, EACH INCLUDING AN INPUT ELECTRODE, AN OUTPUT ELECTRODE AND A COMMON ELECTRODE; AN IMPEDANCE; MEANS FOR UTILIZING SAID IMPEDANCE FOR RETURNING THE COMMON ELECTRODES OF ALL OF SAID AMPLIFYING DEVICES, IN COMMON, TO A POINT OF REFERENCE POTENTIAL; RESPECTIVE MEANS ASSOCIATED WITH THE OUTPUT ELECTRODES OF SAID DEVICES FOR PROVIDING EACH AMPLIFYING DEVICE WITH A SEPARATE OUTPUT CIRCUIT; MEANS FOR COUPLING THE INPUT ELECTRODE OF A FIRST ONE OF SAID TRIO OF AMPLIFYING DEVICES TO SAID FIRST COLOR DIFFERENCE SIGNAL SOURCE; MEANS FOR COUPLING THE INPUT ELECTRODE OF A SECOND ONE OF SAID AMPLIFYING DEVICES TO SAID SECOND COLOR DIFFERENCE SIGNAL SOURCE; MEANS FOR RETURNING THE INPUT ELECTRODE OF THE REMAINING ONE OF SAID AMPLIFYING DEVICES TO SAID POINT OF REFERENCE POTENTIAL; AND MEANS FOR COUPLING SIGNALS FROM THE OUTPUT ELECTRODE OF SAID FIRST AMPLIFYING DEVICE TO THE INPUT ELECTRODE OF SAID REMAINING DEVICE.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |