Patent US3189846A successfully refreshed from Google Patents.
US3189846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-pull modulator with adjustable control means
Assignee: Texas Instruments Inc
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Filing: 1961-01-13
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Granted: 1965-06-15
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Expires: 1981-01-13
Abstract
No abstract record available.
Inventors
- 👤 Edwin G Millis
- 👤 Robert A Shearer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:12
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/38; H03F3/387
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A MODULATOR COMPRISING TWO TRANSISTORS EACH HAVING COLLECTOR, EMITTER AND BASE ELECTRODES, MEANS FOR APPLYING A DIRECT VOLTAGE ACROSS SAID EMITTER ELECTRODES, A CENTER-TAPPED SOURCE OF ALTERNATING SIGNALS CONNECTED BETWEEN SAID BASE ELECTRODES, SAID COLLECTOR ELECTRODES BEING CONNECTED TOGETHER AND TO THE CENTER TAP OF SAID SOURCE, A LOAD IMPEDANCE CONNECTED BETWEEN SAID COLLECTOR ELECTRODES AND SAID EMITTER ELECTRODE OF ONE OF SAID TRANSISTORS, AND A VARIABLE RESISTOR CONNECTED BETWEEN THE BAE ELECTRODE AND THE EMITTER ELECTRODE OF SAID ONE TRANSISTOR.
Claim 2
Dependent Claim
81 words
A MODULATOR COMPRISING TWO TRANSISTORS EACH HAVING COLLECTOR, EMITTER AND BASE ELECTRODES, MEANS FOR APPLYING A DIRECT VOLTAGE ACROSS SAID EMITTER ELECTRODES, A CENTER-TAPPED SOURCE OF ALTERNATING SIGNALS CONNECTED BETWEEN SAID BASE ELECTRODES, SAID COLLECTOR ELECTRODES BEING CONNECTED TOGETHER AND TO THE CENTER TAP OF SAID SOURCE, A LOAD IMPEDANCE CONNECTED BETWEEN SAID COLLECTOR ELECTRODES AND SAID EMITTER ELECTRODE OF ONE OF SAID TRANSISTORS, AND A VARIABLE RESISTOR CONNECTED BETWEEN THE BAE ELECTRODE AND THE EMITTER ELECTRODE OF SAID ONE TRANSISTOR.
References Cited (Backward Citations)
US2832051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |