Patent EP0242906A1 successfully refreshed from Google Patents.
Patent US3169221A successfully refreshed from Google Patents.
US3169221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audio actuated switch for transceiver transmitter
Assignee: TDK Micronas GmbH
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Filing: 1962-02-21
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Granted: 1965-02-09
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Expires: 1982-02-21
Abstract
No abstract record available.
Inventors
- 👤 Armand J Franchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:21
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/44; H04B1/46; H03; H03K; H03K17/00; H03K17/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A TRANSCEIVER COMPRISING MEANS FOR TRANSMITTING AND RECEIVING AUDIO SIGNALS, SAID TRANSMITTING MEANS COMPRISING MEANS RESPONSIVE TO SAID AUDIO SIGNAL FOR MODULATING A CARRIER SIGNAL AND TRANSMITTING SAID MODULATED SIGNAL POWER, MEANS FOR SUPPLYING POWER TO SAID TRANSMITTING MEANS, SWITCH CONTROL MEANS COMPRISING PEAK TO PEAK DETECTOR MEANS FOR PROVIDING A VOLTAGE RESPONSIVE TO THE SYLLABIC RATE OF SAID AUDIO SIGNAL, DRIVER MEANS FOR AMPLIFYING SAID VOLTAGE, TRANSISTORIZED TRIGGER MEANS CONNECTED TO SAID DRIVER FOR PROVIDING A SWITCH OPERATING SIGNAL RESPONSIVE TO SAID AMPLIFYING VOLTAGE, AND SWITCHING MEANS OPERATED RESPONSIVE TO SAID SWITCH OPERATING SIGNAL FOR CONNECTING SAID POWER MEANS TO SAID TRANSMITTING MEANS TO SUPPLY OPERATING POWER THERETO, THEREBY CAUSING TRANSMISSION OF SAID MODULATED SIGNAL.
Claim 2
Dependent Claim
116 words
A TRANSCEIVER COMPRISING MEANS FOR TRANSMITTING AND RECEIVING AUDIO SIGNALS, SAID TRANSMITTING MEANS COMPRISING MEANS RESPONSIVE TO SAID AUDIO SIGNAL FOR MODULATING A CARRIER SIGNAL AND TRANSMITTING SAID MODULATED SIGNAL POWER, MEANS FOR SUPPLYING POWER TO SAID TRANSMITTING MEANS, SWITCH CONTROL MEANS COMPRISING PEAK TO PEAK DETECTOR MEANS FOR PROVIDING A VOLTAGE RESPONSIVE TO THE SYLLABIC RATE OF SAID AUDIO SIGNAL, DRIVER MEANS FOR AMPLIFYING SAID VOLTAGE, TRANSISTORIZED TRIGGER MEANS CONNECTED TO SAID DRIVER FOR PROVIDING A SWITCH OPERATING SIGNAL RESPONSIVE TO SAID AMPLIFYING VOLTAGE, AND SWITCHING MEANS OPERATED RESPONSIVE TO SAID SWITCH OPERATING SIGNAL FOR CONNECTING SAID POWER MEANS TO SAID TRANSMITTING MEANS TO SUPPLY OPERATING POWER THERETO, THEREBY CAUSING TRANSMISSION OF SAID MODULATED SIGNAL.
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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) | 1968-02-09 | 1968-08-10 | 1969-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-09 | 1972-08-10 | 1973-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-09 | 1976-08-10 | 1977-02-09 | $7700.00 | Window Closed / Lapsed |