US3127601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog-to-digital converter
Assignee: AT&T Inc
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Filing: 1960-11-01
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Granted: 1964-03-31
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Expires: 1980-11-01
Abstract
No abstract record available.
Inventors
- 👤 Reginald A Kaenel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:33
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/48; H03M3/00; H03M3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN COMBINATION IN A SYSTEM FOR CONVERTING ANALOG SIGNALS INTO DIGITAL REPRESENTATIONS THEREOF, A SOURCE OF CONTINUOUS ANALOG SIGNALS CHARACTERIZED BY INTELLIGENCEBEARING AMPLITUDE VARIATIONS, REVERSIBLE COUNTING MEANS, ERROR AMPLIFIER MEANS RESPONSIVE TO ANALOG SIGNALS TO BE CONVERTED AND TO OUTPUT SIGNALS OF THE CONTINUOUS ANALOG TYPE FROM SAID ANALOG SIGNAL SOURCE AND SAID COUNTING MEANS, RESPECTIVELY, FOR SUPPLYING BIPOLAR ANALOG TYPE ERROR SIGNALS INDICATIVE OF THE RELATIONSHIP BETWEEN SAID ANALOG SIGNALS AND SAID OUTPUT SIGNALS, AND PULSE MEANS RESPONSIVE TO SAID ERROR SIGNALS FOR SUPPLYING TO SAID COUNTING MEANS PULSES WHOSE REPETITION RATE AND POLARITY ARE A FUNCTION OF SAID ERROR SIGNALS.
Claim 2
Dependent Claim
102 words
IN COMBINATION IN A SYSTEM FOR CONVERTING ANALOG SIGNALS INTO DIGITAL REPRESENTATIONS THEREOF, A SOURCE OF CONTINUOUS ANALOG SIGNALS CHARACTERIZED BY INTELLIGENCEBEARING AMPLITUDE VARIATIONS, REVERSIBLE COUNTING MEANS, ERROR AMPLIFIER MEANS RESPONSIVE TO ANALOG SIGNALS TO BE CONVERTED AND TO OUTPUT SIGNALS OF THE CONTINUOUS ANALOG TYPE FROM SAID ANALOG SIGNAL SOURCE AND SAID COUNTING MEANS, RESPECTIVELY, FOR SUPPLYING BIPOLAR ANALOG TYPE ERROR SIGNALS INDICATIVE OF THE RELATIONSHIP BETWEEN SAID ANALOG SIGNALS AND SAID OUTPUT SIGNALS, AND PULSE MEANS RESPONSIVE TO SAID ERROR SIGNALS FOR SUPPLYING TO SAID COUNTING MEANS PULSES WHOSE REPETITION RATE AND POLARITY ARE A FUNCTION OF SAID ERROR SIGNALS.
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) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |