Patent EP0472196A2 successfully refreshed from Google Patents.
US3147397A
Expired / Lapsed
US
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Compensated vertical sweep circuit
Assignee: General Electric Co
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Filing: 1960-08-22
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Granted: 1964-09-01
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Expires: 1980-08-22
Abstract
No abstract record available.
Inventors
- 👤 Michaelson William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:59
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/60; H03K4/69; H03K4/72
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A SWEEP CIRCUIT FOR PROVIDING A LINEAR SAWTOOTH CURRENT OUTPUT WAVEFORM COMPRISING: (A) AN OUTPUT POWER AMPLIFIER STAGE INCLUDING A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, A LOAD CIRCUIT, A SOURCE OF OPERATING POTENTIAL, AND MEANS COUPLING SAID TRANSISTOR, SAID LOAD CIRCUIT AND SAID SOURCE OF OPERATING POTENTIAL IN A COMMON EMITTER AMPLIFIER CONFIGURATION; (B) A SAWTOOTH VOLTAGE WAVEFORM SOURCE FOR PROVIDING A PERIODIC SAWTOOTH WAVEFORM HAVING A LINEAR TRACE COMPONENT; (C) MEANS COUPLING A SAWTOOTH VOLTAGE WAVEFORM FROM SAID SAWTOOTH VOLTAGE WAVEFORM SOURCE TO SAID BASE ELECTRODE, AND (D) A POSITIVE FEEDBACK NETWORK INCLUDING A SERIES COUPLED DIODE AND CAPACITOR COUPLED BETWEEN SAID COLLECTOR AND BASE ELECTRODES.
References Cited (Backward Citations)
US2876297A
Cited
US2887542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |