US3193672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state computer
Assignee: SERVOMECHANISMS Inc
•
Filing: 1960-03-28
•
Granted: 1965-07-06
•
Expires: 1980-03-28
Abstract
No abstract record available.
Inventors
- 👤 Azgapetian Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:15
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/163; G06G7/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN AN ELECTRONIC COMPUTER, A SOLID STATE CLOSED SERVO LOOP INCLUDING A VOLTAGE AMPLIFIER; MEANS FOR SUPPLYING A COMMAND VOLTAGE TO SAID AMPLIFIER; ELECTROLUMINESCENT MEANS ENERGIZED BY THE OUTPUT OF SAID AMPLIFIER AND EMITTING LIGHT VARYING IN INTENSITY IN RELATION TO SAID COMMAND VOLTAGE; AND FEEDBACK CONTROL MEANS SUPPLYING AN ERROR SIGNAL TO SAID AMPLIFIER INCLUDING VOLTAGE DIVIDING MEANS HAVING A PHOTOCONDUCTIVE ELEMENT OPTICALLY COUPLED UNITERRUPTIBLY TO SAID ELECTROLUMINESCENT MEANS AND RESPONSIVE TO THE INTENSITY OF SAID LIGHT, MEANS FOR ISOLATING SAID PHOTOCONDUCTIVE ELEMENT FROM EXTRANEOUS LIGHT, A SOURCE OF EXCITATION VOLTAGE APPLIED ACROSS SAID VOLTAGE DIVIDING MEANS FOR DEVELOPING A FEEDBACK VOLTAGE VARYING IN RELATION TO THE CONDUCTIVITY OF SAID PHOTOSONDUCTIVE ELEMENT, AND SUMMING MEANS FOR COMPARING SAID FEEDBACK VOLTAGE WITH SAID COMMOND VOLTAGE AND FOR PRODUCING SAID ERROR SIGNAL.
Claim 2
Dependent Claim
131 words
IN AN ELECTRONIC COMPUTER, A SOLID STATE CLOSED SERVO LOOP INCLUDING A VOLTAGE AMPLIFIER; MEANS FOR SUPPLYING A COMMAND VOLTAGE TO SAID AMPLIFIER; ELECTROLUMINESCENT MEANS ENERGIZED BY THE OUTPUT OF SAID AMPLIFIER AND EMITTING LIGHT VARYING IN INTENSITY IN RELATION TO SAID COMMAND VOLTAGE; AND FEEDBACK CONTROL MEANS SUPPLYING AN ERROR SIGNAL TO SAID AMPLIFIER INCLUDING VOLTAGE DIVIDING MEANS HAVING A PHOTOCONDUCTIVE ELEMENT OPTICALLY COUPLED UNITERRUPTIBLY TO SAID ELECTROLUMINESCENT MEANS AND RESPONSIVE TO THE INTENSITY OF SAID LIGHT, MEANS FOR ISOLATING SAID PHOTOCONDUCTIVE ELEMENT FROM EXTRANEOUS LIGHT, A SOURCE OF EXCITATION VOLTAGE APPLIED ACROSS SAID VOLTAGE DIVIDING MEANS FOR DEVELOPING A FEEDBACK VOLTAGE VARYING IN RELATION TO THE CONDUCTIVITY OF SAID PHOTOSONDUCTIVE ELEMENT, AND SUMMING MEANS FOR COMPARING SAID FEEDBACK VOLTAGE WITH SAID COMMOND VOLTAGE AND FOR PRODUCING SAID ERROR 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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |