US3271759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog to digital converter
Assignee: Dynamic System Electronics Corp
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Filing: 1963-09-13
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Granted: 1966-09-06
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Expires: 1983-09-13
Abstract
No abstract record available.
Inventors
- 👤 Hopper Bill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:11
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN AN ANALOG TO DIGITAL CONVERTER COMPRISING: A PLURALITY OF SUMMING AMPLIFIERS EACH REPRESENTING A BINARY DIGIT OF A REFLECTED BINARY CODE AND EACH INCLUDING AN INPUT, AN OUTPUT, AND A FEEDBACK PATH; MEANS CONNECTING AN ANALOG VOLTAGE, TO BE CONVERTED TO DIGITAL REPRESENTATION, TO THE INPUT OF EACH OF SAID AMPLIFIERS; MEANS CONNECTING THE FEEDBACK PATH OF EACH AMPLIFIER TO THE INPUT OF ALL OTHER AMPLIFIERS REPRESENTING A LESS SIGNIFICANT DIGIT; AND A PLURALITY OF ZERO CROSS-OVER DETECTORS, EACH CONNECTED TO THE OUTPUT OF ONE OF SAID AMPLIFIERS RESPECTIVELY, FOR PROVIDING AN INDICATION OF POLARITY OF THE OUTPUT SIGNAL PROVIDED BY THE CORRESPONDING AMPLIFIER, AND THUS THE DIGITAL VALUE OF THE OUTPUT OF THE CORRESPONDING AMPLIFIERS.
Claim 2
Dependent Claim
117 words
IN AN ANALOG TO DIGITAL CONVERTER COMPRISING: A PLURALITY OF SUMMING AMPLIFIERS EACH REPRESENTING A BINARY DIGIT OF A REFLECTED BINARY CODE AND EACH INCLUDING AN INPUT, AN OUTPUT, AND A FEEDBACK PATH; MEANS CONNECTING AN ANALOG VOLTAGE, TO BE CONVERTED TO DIGITAL REPRESENTATION, TO THE INPUT OF EACH OF SAID AMPLIFIERS; MEANS CONNECTING THE FEEDBACK PATH OF EACH AMPLIFIER TO THE INPUT OF ALL OTHER AMPLIFIERS REPRESENTING A LESS SIGNIFICANT DIGIT; AND A PLURALITY OF ZERO CROSS-OVER DETECTORS, EACH CONNECTED TO THE OUTPUT OF ONE OF SAID AMPLIFIERS RESPECTIVELY, FOR PROVIDING AN INDICATION OF POLARITY OF THE OUTPUT SIGNAL PROVIDED BY THE CORRESPONDING AMPLIFIER, AND THUS THE DIGITAL VALUE OF THE OUTPUT OF THE CORRESPONDING AMPLIFIERS.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |