US3247491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronizing pulse generator
Assignee: Electrada Corp
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Filing: 1962-09-27
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Granted: 1966-04-19
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Expires: 1982-09-27
Abstract
No abstract record available.
Inventors
- 👤 Vall Wilbur E Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:57
CPC Classifications
H; H04; H04L; H04L7/00; H04L7/04; H04L7/041; H04L7/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
IN A SYSTEM FOR GENEATING DATA AT A TRANSMITTER AND FOR TRANSMITTING SAID DATA TO A RECEIVER IN THE FORM OF A SERIAL PULSE TRAIN, SAID DATA PULSES OCCURRING AT A CLOCK RATE DETERMINED BY THE FREQUENCY OF OSCILLATION OF AN OSCILLATOR, MEANS AT SAID TRANSMITTER FOR GENERATING A SYNCHRONIZING PULSE PRECEDING A PULSE TRAIN OF DATA BY A PREDETERMINED INTERVAL, SAID SYNCHRONIZING PULSE HAVING A DURATION WHICH IS LESS THAN THE DURATION OF AN INTEGRAL NUMBER OF DATA PULSES AND HAVING A LEADING AND TRAILING EDGE, MEANS AT SAID RECEIVER RESPONSIVE TO THE LEADING EDGE OF SAID SYNCHRONIZING PULSE FOR GENERATING OSCILLATIONS AT SAID CLOCK RATE, MEANS FOR COUNTING SAID OSCILLATIONS, FIRST MEANS FOR DETECTING WHEN SAID MEANS FOR COUNTING OSCILLATIONS HAS MEASURED AN ELAPSED INTERVAL EQUIVALENT TO THE DURATION OF SAID SYNCHRONIZING PULSE TO PROVIDE A FIRST INDICATING SIGNAL, MEANS RESPONSIVE TO SAID FIRST INDICATING SIGNAL TO PREVENT SAID MEANS FOR COUNTING SAID OSCILLATIONS FROM FURTHER COUNTING, SECOND MEANS FOR DETECTING WHEN SAID MEANS FOR COUNTING OSCILLATIONS HAS MEASURED AN
Claim 2
Dependent Claim
172 words
IN A SYSTEM FOR GENEATING DATA AT A TRANSMITTER AND FOR TRANSMITTING SAID DATA TO A RECEIVER IN THE FORM OF A SERIAL PULSE TRAIN, SAID DATA PULSES OCCURRING AT A CLOCK RATE DETERMINED BY THE FREQUENCY OF OSCILLATION OF AN OSCILLATOR, MEANS AT SAID TRANSMITTER FOR GENERATING A SYNCHRONIZING PULSE PRECEDING A PULSE TRAIN OF DATA BY A PREDETERMINED INTERVAL, SAID SYNCHRONIZING PULSE HAVING A DURATION WHICH IS LESS THAN THE DURATION OF AN INTEGRAL NUMBER OF DATA PULSES AND HAVING A LEADING AND TRAILING EDGE, MEANS AT SAID RECEIVER RESPONSIVE TO THE LEADING EDGE OF SAID SYNCHRONIZING PULSE FOR GENERATING OSCILLATIONS AT SAID CLOCK RATE, MEANS FOR COUNTING SAID OSCILLATIONS, FIRST MEANS FOR DETECTING WHEN SAID MEANS FOR COUNTING OSCILLATIONS HAS MEASURED AN ELAPSED INTERVAL EQUIVALENT TO THE DURATION OF SAID SYNCHRONIZING PULSE TO PROVIDE A FIRST INDICATING SIGNAL, MEANS RESPONSIVE TO SAID FIRST INDICATING SIGNAL TO PREVENT SAID MEANS FOR COUNTING SAID OSCILLATIONS FROM FURTHER COUNTING, SECOND MEANS FOR DETECTING WHEN SAID MEANS FOR COUNTING OSCILLATIONS HAS MEASURED AN
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |