Patent US5254107A successfully refreshed from Google Patents.
US3209265A
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Data receiver synchronizer for advancing or retarding phase of output after sampling over period of time
Assignee: AT&T Inc
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Filing: 1963-07-09
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Granted: 1965-09-28
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Expires: 1983-07-09
Abstract
No abstract record available.
Inventors
- 👤 Paul A Baker
- 👤 Mason A Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:31
CPC Classifications
H; H04; H04L; H04L7/00; H04L7/02; H04L7/033; H04L7/0331
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A CIRCUIT FOR SYNCHRONIZING A RECEIVER LOCAL OSCILLATOR TO A BINARY DATA WAVE HAVING TRANSITIONS BETWEEN INDIVIDUAL DATA BITS OCCURRING AT A SYNCHRONOUS RATE COMPRISING MEANS FOR GENERATING A TRAIN OF PULSES CORRESPONDING TO THE WAVE TRANSISTIONS IN SAID DATA WAVE, AN INCREASE BINARY COUNTER HAVING COUNTING AND SET INPUTS. A DECREASE BINARY COUNTER HAVING COUNTING AND SET INPUTS, A LOCAL CLOCK SOURCE INCLUDING A FIXED FREQUENCY OSCILLATOR DRIVING A PLURALITY OF FREQUENCY-DIVIDING STAGES THE OUTPUT OF THE LAST STAGE BEING A SQUARE WAVE AT THE NORMAL SYNCHRONOUS RATE, A PAIR OF GATING MEANS ALTERNATELY ENABLED BY THE LAST STAGE OUTPUT OF SAID CLOCK SOURCE, MEANS CONNECTING SAID WAVE-TRANSISTION TRAIN OF PULSES TO BOTH SAID GATING MEANS, AN OUTPUT FROM ONE OF SAID GATING MEANS CAUSING SAID INCREASE COUNTER TO COUNT AND SAID DECREASE COUNTER BE SET TO A REFERENCE CONDITION,
Claim 2
Dependent Claim
141 words
A CIRCUIT FOR SYNCHRONIZING A RECEIVER LOCAL OSCILLATOR TO A BINARY DATA WAVE HAVING TRANSITIONS BETWEEN INDIVIDUAL DATA BITS OCCURRING AT A SYNCHRONOUS RATE COMPRISING MEANS FOR GENERATING A TRAIN OF PULSES CORRESPONDING TO THE WAVE TRANSISTIONS IN SAID DATA WAVE, AN INCREASE BINARY COUNTER HAVING COUNTING AND SET INPUTS. A DECREASE BINARY COUNTER HAVING COUNTING AND SET INPUTS, A LOCAL CLOCK SOURCE INCLUDING A FIXED FREQUENCY OSCILLATOR DRIVING A PLURALITY OF FREQUENCY-DIVIDING STAGES THE OUTPUT OF THE LAST STAGE BEING A SQUARE WAVE AT THE NORMAL SYNCHRONOUS RATE, A PAIR OF GATING MEANS ALTERNATELY ENABLED BY THE LAST STAGE OUTPUT OF SAID CLOCK SOURCE, MEANS CONNECTING SAID WAVE-TRANSISTION TRAIN OF PULSES TO BOTH SAID GATING MEANS, AN OUTPUT FROM ONE OF SAID GATING MEANS CAUSING SAID INCREASE COUNTER TO COUNT AND SAID DECREASE COUNTER BE SET TO A REFERENCE CONDITION,
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |