Patent US3158759A successfully refreshed from Google Patents.
US3158759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for sampling, holding and comparing consecutive analog signals
Assignee: Texas Instruments Inc
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Filing: 1962-10-31
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Granted: 1964-11-24
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Expires: 1982-10-31
Abstract
No abstract record available.
Inventors
- 👤 Leslie L Jasper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:43
CPC Classifications
H; H03; H03M; H03M1/00; H03K; H03K5/00; H03K5/22; H03K5/24; H03M1/12; H03M1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A SYSTEM FOR COMPARING ANALOG SIGNALS COMPRISING DIFFERENTIAL AMPLIFIER MEANS HAVING TWO INPUTS AND AN OUTPUT, FEEDBACK MEANS COUPLING SAID OUTPUT TO ONE OF SAID INPUTS, SAID FEEDBACK MEANS INCLUDING SERIALLY COUPLED SWITCH MEANS AND AMPLIFYING MEANS, SAID SWITCH MEANS BEING COUPLED TO SAID OUTPUT, STORAGE MEANS COUPLED TO THE JUNCTION BETWEEN SAID SWITCH MEANS AND SAID AMPLIFYING MEANS, SAID SWITCH MEANS BEING OPERATIVE TO CONNECT AND DISCONNECT SAID FEEDBACK MEANS, WHEREBY SAID DIFFERENTIAL AMPLIFIER MEANS HAS A LOW AND HIGH GAIN RESPECTIVELY, MEANS FOR APPLYING AN ANALOG SIGNAL TO THE OTHER OF SAID INPUTS, SAID MEANS FOR APPLYING AN ANALOG SIGNAL TO THE OTHER OF SAID INPUTS INCLUDING INPUT SWITCH MEANS FOR SAMPLING SAID ANALOG SIGNAL AND MEANS HAVING A HIGH INPUT IMPEDANCE AND A LOW OUTPUT IMPEDANCE COUPLING SAID INPUT SWITCH MEANS TO SAID OTHER OF SAID INPUTS, ANOTHER INPUT SWITCH MEANS COUPLED TO SAID MEANS HAVING A HIGH INPUT IMPEDANCE AND A LOW OUTPUT IMPEDANCE, AND SWITCHING MEANS FOR COUPLING A REFERENCE POTENTIAL TO SAID MEANS HAVING A HIGH INPUT IMPEDANCE AND A LOW OUTPUT IMPEDANCE.
Claim 2
Independent Claim
179 words
A SYSTEM FOR COMPARING ANALOG SIGNALS COMPRISING DIFFERENTIAL AMPLIFIER MEANS HAVING TWO INPUTS AND AN OUTPUT, FEEDBACK MEANS COUPLING SAID OUTPUT TO ONE OF SAID INPUTS, SAID FEEDBACK MEANS INCLUDING SERIALLY COUPLED SWITCH MEANS AND AMPLIFYING MEANS, SAID SWITCH MEANS BEING COUPLED TO SAID OUTPUT, STORAGE MEANS COUPLED TO THE JUNCTION BETWEEN SAID SWITCH MEANS AND SAID AMPLIFYING MEANS, SAID SWITCH MEANS BEING OPERATIVE TO CONNECT AND DISCONNECT SAID FEEDBACK MEANS, WHEREBY SAID DIFFERENTIAL AMPLIFIER MEANS HAS A LOW AND HIGH GAIN RESPECTIVELY, MEANS FOR APPLYING AN ANALOG SIGNAL TO THE OTHER OF SAID INPUTS, SAID MEANS FOR APPLYING AN ANALOG SIGNAL TO THE OTHER OF SAID INPUTS INCLUDING INPUT SWITCH MEANS FOR SAMPLING SAID ANALOG SIGNAL AND MEANS HAVING A HIGH INPUT IMPEDANCE AND A LOW OUTPUT IMPEDANCE COUPLING SAID INPUT SWITCH MEANS TO SAID OTHER OF SAID INPUTS, ANOTHER INPUT SWITCH MEANS COUPLED TO SAID MEANS HAVING A HIGH INPUT IMPEDANCE AND A LOW OUTPUT IMPEDANCE, AND SWITCHING MEANS FOR COUPLING A REFERENCE POTENTIAL TO SAID MEANS HAVING A HIGH INPUT IMPEDANCE AND A LOW OUTPUT IMPEDANCE.
References Cited (Backward Citations)
US2834883A
Cited
US3050673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |