US3075149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage and frequency memory system
Assignee: RCA Corp
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Filing: 1961-05-03
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Granted: 1963-01-22
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Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas G Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:29
CPC Classifications
G; G11; G11C; G11C27/00; G11C27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
AN ELECTRICAL MEMORY SYSTEM FOR PROVIDING VOLTAGE AND FREQUENCY MEMORY, COMPRISING IN COMBINATION, A MONOSTABLE BLOCKING OSCILLATOR INCLUDING A TRANSISTOR ELEMENT HAVING A BASE TO COLLECTOR FEEDBACK CIRCUIT AND HAVING A COMMON GROUNDED EMITTER CIRCUIT, MEANS FOR APPLYING SYNCHRONIZING SIGNAL PULSES TO SAID OSCILLATOR FOR OPERATION AT SUB-HARMONIC FREQUENCIES THEREOF, A BASE RESISTOR CONNECTED SERIALLY IN SAID BASE CIRCUIT, AN INPUTOUTPUT CIRCUIT FOR APPLIED CONTROL AND OUTPUT VOLTAGES, MEANS INCLUDING AN INTEGRATING CIRCUIT COUPLED TO THE COLLECTOR CIRCUIT AND A DIODE PEAK DETECTOR COUPLED BETWEEN SAID INTEGRATING CIRCUIT AND SAID INPUT-OUTPUT CIRCUIT FOR DERIVING GATING SIGNAL PULSES FOR SAID OSCILLATOR ACROSS SAID BASE RESISTOR AND A QUANTIZED OUTPUT VOLTAGE AT SAID INPUT-OUTPUT CIRCUIT, AND SAID OUTPUT VOLTAGE AND THE RESULTING OUTPUT FREQUENCY BEING CONSTANT IN THE ABSENSE OF CONTROL VOLTAGE LEVEL CHANGE, WHEREBY THE SYSTEM HAS BOTH VOLTAGE AND FREQUENCY MEMORY.
Claim 2
Dependent Claim
141 words
AN ELECTRICAL MEMORY SYSTEM FOR PROVIDING VOLTAGE AND FREQUENCY MEMORY, COMPRISING IN COMBINATION, A MONOSTABLE BLOCKING OSCILLATOR INCLUDING A TRANSISTOR ELEMENT HAVING A BASE TO COLLECTOR FEEDBACK CIRCUIT AND HAVING A COMMON GROUNDED EMITTER CIRCUIT, MEANS FOR APPLYING SYNCHRONIZING SIGNAL PULSES TO SAID OSCILLATOR FOR OPERATION AT SUB-HARMONIC FREQUENCIES THEREOF, A BASE RESISTOR CONNECTED SERIALLY IN SAID BASE CIRCUIT, AN INPUTOUTPUT CIRCUIT FOR APPLIED CONTROL AND OUTPUT VOLTAGES, MEANS INCLUDING AN INTEGRATING CIRCUIT COUPLED TO THE COLLECTOR CIRCUIT AND A DIODE PEAK DETECTOR COUPLED BETWEEN SAID INTEGRATING CIRCUIT AND SAID INPUT-OUTPUT CIRCUIT FOR DERIVING GATING SIGNAL PULSES FOR SAID OSCILLATOR ACROSS SAID BASE RESISTOR AND A QUANTIZED OUTPUT VOLTAGE AT SAID INPUT-OUTPUT CIRCUIT, AND SAID OUTPUT VOLTAGE AND THE RESULTING OUTPUT FREQUENCY BEING CONSTANT IN THE ABSENSE OF CONTROL VOLTAGE LEVEL CHANGE, WHEREBY THE SYSTEM HAS BOTH VOLTAGE AND FREQUENCY MEMORY.
References Cited (Backward Citations)
US2817061A
Cited
US3022469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |