Patent US1953484A successfully refreshed from Google Patents.
Patent US3097345A successfully refreshed from Google Patents.
US3097345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillator having amplitude proportional to input signal
Assignee: The General Electric Company PLC
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Filing: 1959-08-13
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Granted: 1963-07-09
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Expires: 1979-08-13
Abstract
No abstract record available.
Inventors
- 👤 Ingram Derek George Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:11
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/02; H04L27/04; H03; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1206; H03B5/1221; H03B5/1231; H03B5/1296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
225 words
AN ELECTRIC OSCILLATOR FOR SUPPLYING AN ELECTRIC OSCILLATION HAVING AN MAPLITUDE DEPENDENT UPON THE VALUE OF A VARIABLE INPUT SIGNAL, AND OSCILLATOR COMPRISING INPUT TERMINALS TO WHICH SAID INPUT SIGNAL IS SUPPLIED DURING OPERATION OF THE OSCILLATOR, AN AMPLIFIER HAVING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, CIRCUIT MEANS CONNECTED BETWEEN SAID INPUT TERMINALS AND THE INPUT CIRCUIT OF THE AMPLIFIER, A VARIABLE IMPEDENCE DEVICE WHICH IS INCLUDED IN SAID CIRCUIT MEANS AND WHICH HAS AN "ON" CONDITION WHEREIN IT PRESENTS ON IMPEDANCE TO SAID INPUT SIGNAL SUCH THAT SUBSTANTIALLY ALL OF THAT SIGNAL IS APPLIED TO THE AMPLIFIER AND AN "OFF" CONDITION WHEREIN IT PRESENTS AN IMPEDANCE TO SAID INPUT SIGNAL SUCH THAT SUBSTANTIALLY NONE OF THAT SIGNAL IS APPLIED TO THE AMPLIFIER, CONTROL MEANS OF SAID VARIABLE IMPEDANCE DEVICE BY WHICH THAT DEVICE IS SWITCHED "OFF" AND "ON" RESPECTIVELY WHEN A SIGNAL IS AND IS NOT APPLIED TO THAT CONTROL MEANS, AN ALTERNATING CURRENT FEEDBACK PATH WHICH IS CONNECTED BETWEEN THE OUTPUT CIRCUIT OF THE AMPLIFIER AND SAID CONTROL MEANS AND OVER WHICH PART OF THE AMPLIFIED INPUT SIGNAL THAT IS SUPPLIED BY THE AMPLIFIER ONLY WHEN SAID DEVICE IS "ON" IS APPLIED TO SAID CONTROL MEANS TO SWITCH SAID DEVICE "OFF" SO THAT THE ARRANGEMENT OSCILLATES, AND RESONANCE MEANS INCLUDED IN SAID AMPLIFIER TO DETERMINE THE FREQUENCY AT WHICH THE ARRANGEMENT OSCILLATES.
Claim 2
Dependent Claim
225 words
AN ELECTRIC OSCILLATOR FOR SUPPLYING AN ELECTRIC OSCILLATION HAVING AN MAPLITUDE DEPENDENT UPON THE VALUE OF A VARIABLE INPUT SIGNAL, AND OSCILLATOR COMPRISING INPUT TERMINALS TO WHICH SAID INPUT SIGNAL IS SUPPLIED DURING OPERATION OF THE OSCILLATOR, AN AMPLIFIER HAVING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, CIRCUIT MEANS CONNECTED BETWEEN SAID INPUT TERMINALS AND THE INPUT CIRCUIT OF THE AMPLIFIER, A VARIABLE IMPEDENCE DEVICE WHICH IS INCLUDED IN SAID CIRCUIT MEANS AND WHICH HAS AN "ON" CONDITION WHEREIN IT PRESENTS ON IMPEDANCE TO SAID INPUT SIGNAL SUCH THAT SUBSTANTIALLY ALL OF THAT SIGNAL IS APPLIED TO THE AMPLIFIER AND AN "OFF" CONDITION WHEREIN IT PRESENTS AN IMPEDANCE TO SAID INPUT SIGNAL SUCH THAT SUBSTANTIALLY NONE OF THAT SIGNAL IS APPLIED TO THE AMPLIFIER, CONTROL MEANS OF SAID VARIABLE IMPEDANCE DEVICE BY WHICH THAT DEVICE IS SWITCHED "OFF" AND "ON" RESPECTIVELY WHEN A SIGNAL IS AND IS NOT APPLIED TO THAT CONTROL MEANS, AN ALTERNATING CURRENT FEEDBACK PATH WHICH IS CONNECTED BETWEEN THE OUTPUT CIRCUIT OF THE AMPLIFIER AND SAID CONTROL MEANS AND OVER WHICH PART OF THE AMPLIFIED INPUT SIGNAL THAT IS SUPPLIED BY THE AMPLIFIER ONLY WHEN SAID DEVICE IS "ON" IS APPLIED TO SAID CONTROL MEANS TO SWITCH SAID DEVICE "OFF" SO THAT THE ARRANGEMENT OSCILLATES, AND RESONANCE MEANS INCLUDED IN SAID AMPLIFIER TO DETERMINE THE FREQUENCY AT WHICH THE ARRANGEMENT OSCILLATES.
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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |