US3072332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog-to-digital converter
Assignee: International Business Machines Corp
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Filing: 1960-10-27
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Granted: 1963-01-08
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Expires: 1980-10-27
Abstract
No abstract record available.
Inventors
- 👤 William P Margopoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:34
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
AN ANALOG-TO-DIGITAL CONVERTER FOR SEQUENTIALLY CONVERTING EACH ORDER OF A MULTIDIGIT ORDER ANALOG SIGNAL TO A DIGITAL REPRESENTATION THEREOF THAT COMPRISES A VARIABLE GAIN AMPLIFIER FOR AMPLIFYING AN INPUT SIGNAL THERETO, MEANS TO SET THE GAIN OF SAID AMPLIFIER AS DETERMINED BY THE ORDER BEING CONVERTED, MEANS TO DETERMINE THE HIGHEST ORDER VALUE OF THE OUTPUT OF SAID AMPLIFIER, MEANS RESPONSIVE TO SAID DETERMINATION TO STORE SAID HIGHEST ORDER VALUE IN DIGITAL FORM, MEANS RESPONSIVE TO SAID STORAGE TO SUBTRACT SAID VALUE FROM SAID ANALOG SIGNAL TO PROVIDE SAID INPUT SIGNAL TO SAID AMPLIFIER AND MEANS TO INCREASE THE GAIN OF SAID AMPLIFIER FROM ONE ORDER CONVERSION TO THE NEXT BY A FACTOR EQUAL TO THE RADIX OF SAID DIGITAL REPRESENTATION.
References Cited (Backward Citations)
US2569927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |