US3213368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for transmitting frequency-modulated oscillations
Assignee: US Philips Corp
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Filing: 1961-11-15
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Granted: 1965-10-19
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Expires: 1981-11-15
Abstract
No abstract record available.
Inventors
- 👤 Geluk Jan Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:12
CPC Classifications
H; H04; H04B; H04B14/00; H04B14/002; H04B14/006; H03; H03C; H03C3/00; H03C3/02; H03C3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A FREQUENCY MODULATION TRANSMITTER CIRCUIT COMPRISING A SOURCE OF INPUT SIGNALS, A SOURCE OF CARRIER OSCILLATIONS, MEANS FOR FREQUENCY-MODULATING SAID CARRIER OSCILLATIONS WITH SAID INPUT SIGNALS TO PRODUCE FREQUENCYMODULATED OSCILLATIONS HAVING A FREQUENCY DEVIATION SUBSTANTIALLY PROPORTIONAL TO THE AMPLITUDE OF SAID INPUT SIGNALS, RECTIFIER MEANS CONNECTED TO SID SOURCE OF INPUT TO THE ENVELOPE OF SAID INPOUT SIGNALS AND SUBSTANTIALLY TO THE ENVELOPE OF SAID INPUT SIGNALS AND SUBSTANTIALLY INDEPENDENT OF THE FREQUENCY OF SAID INPUT SIGNALS, AMPLITUDE MODULATOR MEANS, AND MEANS FOR MOUDLATING SAID FREQUENCY-MODULATED OSCILLATIONS IN SAID AMPLITUDE MODULATOR MEANS WITH SAID CONTROL SIGNAL TO VARY THE AMPLITUDE OF SAID FREQUENCY-MODULATED OSCILLATIONS INVERSELY WITH RESPECT TO THE AMPLITUDE OF THE ENVELOPE OF SAID INPUT SIGNALS.
Claim 2
Dependent Claim
117 words
A FREQUENCY MODULATION TRANSMITTER CIRCUIT COMPRISING A SOURCE OF INPUT SIGNALS, A SOURCE OF CARRIER OSCILLATIONS, MEANS FOR FREQUENCY-MODULATING SAID CARRIER OSCILLATIONS WITH SAID INPUT SIGNALS TO PRODUCE FREQUENCYMODULATED OSCILLATIONS HAVING A FREQUENCY DEVIATION SUBSTANTIALLY PROPORTIONAL TO THE AMPLITUDE OF SAID INPUT SIGNALS, RECTIFIER MEANS CONNECTED TO SID SOURCE OF INPUT TO THE ENVELOPE OF SAID INPOUT SIGNALS AND SUBSTANTIALLY TO THE ENVELOPE OF SAID INPUT SIGNALS AND SUBSTANTIALLY INDEPENDENT OF THE FREQUENCY OF SAID INPUT SIGNALS, AMPLITUDE MODULATOR MEANS, AND MEANS FOR MOUDLATING SAID FREQUENCY-MODULATED OSCILLATIONS IN SAID AMPLITUDE MODULATOR MEANS WITH SAID CONTROL SIGNAL TO VARY THE AMPLITUDE OF SAID FREQUENCY-MODULATED OSCILLATIONS INVERSELY WITH RESPECT TO THE AMPLITUDE OF THE ENVELOPE OF SAID INPUT SIGNALS.
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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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |