US3179889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timing of pulse transmission systems by interspersed opposite-polarity pulses
Assignee: AT&T Inc
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Filing: 1962-10-02
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Granted: 1965-04-20
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Expires: 1982-10-02
Abstract
No abstract record available.
Inventors
- 👤 Bernard G King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:04
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/06; H04J3/0602; H04J3/0614
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
IN A PULSE TRANSMISSION SYSTEM, APPARATUS FOR ACCEPTING AN INCOMING TRAIN COMPOSED OF INFORMATION-BEARING PULSES OF ONE POLARITY AND, INTERSPERSED AMONG SAID INFORMATION-BEARING PULSES REGULARLY RECURRENT TIMING PU LSES OF OPPOSITE POLARITY WHICH COMPRISES, AN INPUT TERMINAL, AN INFORMATION PATH EXTENDING FROM SAID INPUT TERMINAL TO AN OUTPUT TERMINAL, A FIRST UNDIRECTIONALLY CONDUCTING DEVICE FOR SELECTIVELY ROUTING PULSES OF THE FIRST POLARITY INTO SAID INFORMATION PATH, SAID INFORMATION PATH INCLUDING A PULSE-RETIMING ELEMENT HAVING A CONTROL TERMINAL, A CONTROL PATH EXTENDING FROM SAID INPUT TERMINAL TO SAID CONTROL TERMINAL AND INCLUDING A PHASE SHIFTING ELEMENT, AND A SECOND UNIDIRECTIONALLY CONDUCTING DEVICE FOR SELECTIVELY ROUTING PULSE OF THE OPPOSITE POLARITY INTO THE CONTROL PATH, WHEREBY THE INFORMATION PULSES ARE RETIMED UNDER CONTROL OF THE TIMING PULSES.
References Cited (Backward Citations)
US2777897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |