US3109897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronization of pulse transmission systems
Assignee: AT&T Inc
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Filing: 1960-05-20
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Granted: 1963-11-05
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Expires: 1980-05-20
Abstract
No abstract record available.
Inventors
- 👤 Robert L Carbrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:05
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/06; H04J3/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
IN A TIME DIVISION MULTIPLEX SYSTEM A FIRST MULTIPLEX TERMINAL, A SECOND MULTIPLEX TERMINAL, A FIRST TRANSMISSION MEDIUM INTERCONNECTING SAID TERMINALS FOR TRANSLATING CODED ELECTRICAL SIGNALS FROM SAID FIRST TERMINAL TO SAID SECOND TERMINAL, A SECOND TRANSMISSION MEDIUM FOR TRANSLATING CODED ELECTRICAL SIGNALS FROM SAID SECOND TERMINAL TO SAID FIRST TERMINAL, PHASE DETECTING MEANS FOR PRODUCING A RESPONSE REPRESENTATIVE OF THE DIFFERENCE IN PHASE BETWEEN SAID SIGNALS TRANSLATED BY SAID FIRST AND SAID SECOND MEDIA, CONTROLLABLE DELAYING MEANS CONNECTED IN ONE OF SAID MEDIA OPERATIVE IN ACCORDANCE WITH SAID RESPONSE FOR SYNCHRONIZING THE PHASE OF THE CODED SIGNALS AT A PREDETERMINED POINT OF ONE OF THE MEDIA WITH THE CODED SIGNALS AT A PREDETERMINED POINT IN THE OTHER OF THE MEDIA, A STORAGE DEVICE ASSOCIATED WITH SAID DELAYING MEANS, MEANS FOR SEQUENTIALLY STORING SIGNALS DELAYED BY SAID DELAYING MEANS, AND MEANS FOR SENSING AT LEAST A PORTION OF SAID STORED SIGNALS IN SYNCHRONISM WITH CORRESPONDING SIGNALS TRANSLATED BY THE OTHER OF SAID MEDIA.
Claim 2
Dependent Claim
163 words
IN A TIME DIVISION MULTIPLEX SYSTEM A FIRST MULTIPLEX TERMINAL, A SECOND MULTIPLEX TERMINAL, A FIRST TRANSMISSION MEDIUM INTERCONNECTING SAID TERMINALS FOR TRANSLATING CODED ELECTRICAL SIGNALS FROM SAID FIRST TERMINAL TO SAID SECOND TERMINAL, A SECOND TRANSMISSION MEDIUM FOR TRANSLATING CODED ELECTRICAL SIGNALS FROM SAID SECOND TERMINAL TO SAID FIRST TERMINAL, PHASE DETECTING MEANS FOR PRODUCING A RESPONSE REPRESENTATIVE OF THE DIFFERENCE IN PHASE BETWEEN SAID SIGNALS TRANSLATED BY SAID FIRST AND SAID SECOND MEDIA, CONTROLLABLE DELAYING MEANS CONNECTED IN ONE OF SAID MEDIA OPERATIVE IN ACCORDANCE WITH SAID RESPONSE FOR SYNCHRONIZING THE PHASE OF THE CODED SIGNALS AT A PREDETERMINED POINT OF ONE OF THE MEDIA WITH THE CODED SIGNALS AT A PREDETERMINED POINT IN THE OTHER OF THE MEDIA, A STORAGE DEVICE ASSOCIATED WITH SAID DELAYING MEANS, MEANS FOR SEQUENTIALLY STORING SIGNALS DELAYED BY SAID DELAYING MEANS, AND MEANS FOR SENSING AT LEAST A PORTION OF SAID STORED SIGNALS IN SYNCHRONISM WITH CORRESPONDING SIGNALS TRANSLATED BY THE OTHER OF SAID MEDIA.
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |