US3290433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colour television transmitters
Assignee: Compagnie Francaise de Television SA
•
Filing: 1963-04-26
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Granted: 1966-12-06
•
Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
- 👤 France Henri De
- 👤 Dognin Bernard
- 👤 Melchior Gerard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:28
CPC Classifications
H; H04; H04N; H04N11/00; H04N11/06; H04N11/18; H04N11/12; H04N11/183; Y; Y10; Y10T; Y10T24/00; Y10T24/39
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
154 words
A COLOUR TELEVISION TRANSMITTER COMPRISING: FIRST MEANS, HAVING AN OUTPUT, FOR GENERATING A FIRST PICTURE SIGNAL HAVING A FIRST FREQUENCY BAND; MEANS FOR GENERATING A SECOND PICTURE SIGNAL; MEANS FOR FREQUENCY-MODULATING SAID SECOND PICTURE SIGNAL ON A WAVE TO PROVIDE A FREQUENCY-MODULATED WAVE HAVING A SECOND FREQUENCY BAND LYING WITHIN SAID FIRST FREQUENCY BAND; A CIRCUIT, HAVING TWO INPUTS RESPECTIVELY; AND MEANS HAVING AN INPUT COUPLED TO SAID OUTPUT OF SAID FIRST MEANS, SAID CIRCUIT HAVING IN SAID SECOND FREQUENCY BAND A GAIN CHARACTERISTIC WHICH VARIES AS A FUNCTION OF THE AMPLITUDES OF THOSE FREQUENCY COMPONENTS OF SAID FIRST SIGNAL LYING WITHIN SAID SECOND FREQUENCY BAND, FOR MODIFYING THE AMPLITUDES OF AT LEAST SOME OF SAID COMPONENTS RELATIVELY TO THE AMPLITUDE OF SAID WAVE, COUPLED TO THE OUTPUT OF SAID FIRST MEANS AND OF SAID CIRCUIT, FOR TRANSMITTING OVER A COMMON CHANNEL THE SUM OF SAID FIRST PICTURE SIGNAL AND OF SAID FREQUENCY-MODULATED WAVE.
Claim 2
Dependent Claim
154 words
A COLOUR TELEVISION TRANSMITTER COMPRISING: FIRST MEANS, HAVING AN OUTPUT, FOR GENERATING A FIRST PICTURE SIGNAL HAVING A FIRST FREQUENCY BAND; MEANS FOR GENERATING A SECOND PICTURE SIGNAL; MEANS FOR FREQUENCY-MODULATING SAID SECOND PICTURE SIGNAL ON A WAVE TO PROVIDE A FREQUENCY-MODULATED WAVE HAVING A SECOND FREQUENCY BAND LYING WITHIN SAID FIRST FREQUENCY BAND; A CIRCUIT, HAVING TWO INPUTS RESPECTIVELY; AND MEANS HAVING AN INPUT COUPLED TO SAID OUTPUT OF SAID FIRST MEANS, SAID CIRCUIT HAVING IN SAID SECOND FREQUENCY BAND A GAIN CHARACTERISTIC WHICH VARIES AS A FUNCTION OF THE AMPLITUDES OF THOSE FREQUENCY COMPONENTS OF SAID FIRST SIGNAL LYING WITHIN SAID SECOND FREQUENCY BAND, FOR MODIFYING THE AMPLITUDES OF AT LEAST SOME OF SAID COMPONENTS RELATIVELY TO THE AMPLITUDE OF SAID WAVE, COUPLED TO THE OUTPUT OF SAID FIRST MEANS AND OF SAID CIRCUIT, FOR TRANSMITTING OVER A COMMON CHANNEL THE SUM OF SAID FIRST PICTURE SIGNAL AND OF SAID FREQUENCY-MODULATED WAVE.
Claim 3
Dependent Claim
31 words
A COLOR TELEVISION TRANSMITTER COMPRISING: FIRST MEANS, HAVING AN OUTPUT, FOR GENERATING A FIRST PICTURE SIGNAL HAVING A FIRST FREQUENCY BAND; MEANS FOR GENERATING A SECOND PICTURE SIGNAL; MEANS FOR FREQUENCY-MODULATING
Claim 4
Dependent Claim
31 words
A COLOR TELEVISION TRANSMITTER COMPRISING: FIRST MEANS, HAVING AN OUTPUT, FOR GENERATING A FIRST PICTURE SIGNAL HAVING A FIRST FREQUENCY BAND; MEANS FOR GENERATING A SECOND PICTURE SIGNAL; MEANS FOR FREQUENCY-MODULATING
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |