US3234545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Information processing circuit
Assignee: AT&T Inc
•
Filing: 1962-02-08
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Granted: 1966-02-08
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Expires: 1982-02-08
Abstract
No abstract record available.
Inventors
- 👤 Dennis B James
- 👤 Reginald A Kaenel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:09
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/124
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
164 words
IN COMBINATION IN A SAMPLE AND HOLD CIRCUIT, SUBSTANTIALLY NONREFLECTING DELAY LINE MEANS INCLUDING N TAPS AND A TERMINATING IMPEDANCE AT ONE END THEREOF TO MIMIMIZE SIGNAL REFLECTIONS, MEANS FOR APPLYING A CONTINUOUSLY VARIABLE ANALOG INPUT SIGNAL TO THE OTHER END OF SAID DELAY LINE MEANS, SAID N TAPS BEING SO POSITIONED ALONG SAID DELAY LINE MEANS THAT THE TIME REQUIRED FOR THE INPUT SIGNAL TO PROPAGATE BETWEEN ADJACENT TAPS IS T SECONDS, N GATE MEANS RESPECTIVELY CONNECTED TO SAID TAPS, EACH OF SAID GATE MEANS INCLUDING AN OUTPUT TERMINAL, AND MEANS DISTINCT FROM SAID DELAY LINE MEANS FOR ENABLING SAID N GATE MEANS IN SEQUENCE BY RESPECTIVELY SUPPLYING THERETO N ENABLING SIGNALS WHOSE PERIOD IS T SECONDS, WHEREBY A PARTICULAR SELECTED PORTION OF THE APPLIED ANALOG INPUT SIGNAL APPEARS IN SEQUENCE AT THE SUCCESSIVE TAPS OF SAID DELAY LINE MEANS AND ALSO APPEARS AT THE RESPECTIVE OUTPUT TERMINALS OF SAID N GAGE MEANS IN TIME COINCIDENCE WITH THE OCCURRENCE OF SAID ENABLING SIGNALS.
Claim 2
Dependent Claim
164 words
IN COMBINATION IN A SAMPLE AND HOLD CIRCUIT, SUBSTANTIALLY NONREFLECTING DELAY LINE MEANS INCLUDING N TAPS AND A TERMINATING IMPEDANCE AT ONE END THEREOF TO MIMIMIZE SIGNAL REFLECTIONS, MEANS FOR APPLYING A CONTINUOUSLY VARIABLE ANALOG INPUT SIGNAL TO THE OTHER END OF SAID DELAY LINE MEANS, SAID N TAPS BEING SO POSITIONED ALONG SAID DELAY LINE MEANS THAT THE TIME REQUIRED FOR THE INPUT SIGNAL TO PROPAGATE BETWEEN ADJACENT TAPS IS T SECONDS, N GATE MEANS RESPECTIVELY CONNECTED TO SAID TAPS, EACH OF SAID GATE MEANS INCLUDING AN OUTPUT TERMINAL, AND MEANS DISTINCT FROM SAID DELAY LINE MEANS FOR ENABLING SAID N GATE MEANS IN SEQUENCE BY RESPECTIVELY SUPPLYING THERETO N ENABLING SIGNALS WHOSE PERIOD IS T SECONDS, WHEREBY A PARTICULAR SELECTED PORTION OF THE APPLIED ANALOG INPUT SIGNAL APPEARS IN SEQUENCE AT THE SUCCESSIVE TAPS OF SAID DELAY LINE MEANS AND ALSO APPEARS AT THE RESPECTIVE OUTPUT TERMINALS OF SAID N GAGE MEANS IN TIME COINCIDENCE WITH THE OCCURRENCE OF SAID ENABLING SIGNALS.
Claim 3
Dependent Claim
76 words
A COMBINATION AS IN CLAIM 1 FURTHER INCLUDING AN N-STAGE SEQUENTIAL ANALOG-TO-DIGITAL CONVERTER, EACH STAGE THEREOF BEING ASSOCIATED WITH A DIFFERENT ONE OF THE TAPS OF SAID DELAY LINE MEANS, MEANS CONNECTED TO THE OUTPUT TERMINALS OF SAID GATE MEANS FOR SUPPLYING AN INPUT SIGNAL TO SAID CONVERTER, AND MEANS RESPONSIVE TO SAID ENABLING SIGNALS FOR SEQUENTIALLY ENERGIZING SAID STAGES IN RESPECTIVE UNISON WITH THE ENABLING OF THE GATE MEANS CONNECTED TO THE RESPECTIVE ASSOCIATED TAPS.
References Cited (Backward Citations)
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |