US3242259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System to minimize desaturation and reduce noise in color tv picture by subtracting from luminance signal a d. c. signal derived from chrominance signal via a forward biased unilaterally conductive device
Assignee: Lanteris Space LLC
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Filing: 1961-03-31
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Granted: 1966-03-22
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Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Francis P Keiper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:50
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/77
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN COMBINATION: (A) FIRST MEANS FOR SUPPLYING A FIRST SIGNAL REPRESENTATIVE OF THE LMINANCE COMPONENT OF A COLOR TELEVISION SIGNAL, (B) SECOND MEANS FOR SUPPLYING A SECOND SIGNAL REPRESENTATIVE OF THE CHROMINANCE COMPONENT OF SAID COLOR TELEVISION SIGNAL, (C) THIRD MEANS FOR DERIVING FROM SAID SECOND SIGNAL A THIRD SIGNAL OF UNIDIRECTIONAL FORM WHOSE AMPLITUDE VARIES WITH VARIATIONS IN THE AMPLITUDE OF SAID SECOND SIGNAL, SAID THIRD MEANS ARANGED TO REDUCE THE AMPLITUDE OF SAID SECOND SIGNAL IN INVERSE PROPORTION TO THE AMPLITUDE THEREOF, AND (D) FOURTH MEANS FOR COMBINING SAID FIRST, SECOND, AND THIRD SIGNALS.
Claim 2
Dependent Claim
96 words
IN COMBINATION: (A) FIRST MEANS FOR SUPPLYING A FIRST SIGNAL REPRESENTATIVE OF THE LMINANCE COMPONENT OF A COLOR TELEVISION SIGNAL, (B) SECOND MEANS FOR SUPPLYING A SECOND SIGNAL REPRESENTATIVE OF THE CHROMINANCE COMPONENT OF SAID COLOR TELEVISION SIGNAL, (C) THIRD MEANS FOR DERIVING FROM SAID SECOND SIGNAL A THIRD SIGNAL OF UNIDIRECTIONAL FORM WHOSE AMPLITUDE VARIES WITH VARIATIONS IN THE AMPLITUDE OF SAID SECOND SIGNAL, SAID THIRD MEANS ARANGED TO REDUCE THE AMPLITUDE OF SAID SECOND SIGNAL IN INVERSE PROPORTION TO THE AMPLITUDE THEREOF, AND (D) FOURTH MEANS FOR COMBINING SAID FIRST, SECOND, AND THIRD SIGNALS.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |