US3306978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronisation of pulse code modulation transmission systems
Assignee: Associated Electrical Industries Ltd
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Filing: 1963-01-22
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Granted: 1967-02-28
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Expires: 1983-01-22
Abstract
No abstract record available.
Inventors
- 👤 Simmons Brian Desmond
- 👤 Duerdoth Winston Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:33
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/06; H04J3/062; H04J3/0626; H04L; H04L7/00; H04L7/0016; H04L7/0033; H04L7/0041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A TRANSMISSION RECEIVER FOR A PULSE CODE MODULATION TRANSMISSION SYSTEM IN WHICH DIGITALLY CODED INFORMATION IS TRANSMITTED IN SUCCESSIVE TIME FRAMES IN TIME SLOTS EACH CONSISTITUTED BY A PLURALITY OF DIGIT PERIODS, SAID RECEIVER COMPRISING, FOR BRINGING THE TIME SLOTS OF A RECEIVED TRANSMISSION INTO TIME ALIGNMENT WITH LOCALLY DEMARCATED TIME SLOTS, DELAY MEANS AFFORDING A PLURALITY OF PREDETERMINED DELAYS, DELAY SELECTING MEANS FOR SELECTIVELY CONNECTING IN SERIES WITH AN INCOMING TRANSMISSION A SELECTION FROM SAID DELAYS OF TOTAL MAGNITUDE SUFFICIENT TO BRING THE TIME SLOTS OF SAID TRANSMISSION INTO LEADING OVERLAPPING TIME RELATIONSHIP WITH RESPECTIVE LOCALLY DEMARCATED TIME SLOTS, STORAGE MEANS FOLLOWING SAID DELAY MEANS FOR TEMPORARILY STORING DIGITS CONTAINED IN THE DIGIT PERIODS OF A RECEIVED TIME SLOT, AND MEANS FOR ABSTRACTING SAID DIGITS FROM THE STORAGE MEANS COINCIDENTALLY WITH LOCALLY DEMARCATED DIGIT PERIODS.
Claim 2
Dependent Claim
136 words
A TRANSMISSION RECEIVER FOR A PULSE CODE MODULATION TRANSMISSION SYSTEM IN WHICH DIGITALLY CODED INFORMATION IS TRANSMITTED IN SUCCESSIVE TIME FRAMES IN TIME SLOTS EACH CONSISTITUTED BY A PLURALITY OF DIGIT PERIODS, SAID RECEIVER COMPRISING, FOR BRINGING THE TIME SLOTS OF A RECEIVED TRANSMISSION INTO TIME ALIGNMENT WITH LOCALLY DEMARCATED TIME SLOTS, DELAY MEANS AFFORDING A PLURALITY OF PREDETERMINED DELAYS, DELAY SELECTING MEANS FOR SELECTIVELY CONNECTING IN SERIES WITH AN INCOMING TRANSMISSION A SELECTION FROM SAID DELAYS OF TOTAL MAGNITUDE SUFFICIENT TO BRING THE TIME SLOTS OF SAID TRANSMISSION INTO LEADING OVERLAPPING TIME RELATIONSHIP WITH RESPECTIVE LOCALLY DEMARCATED TIME SLOTS, STORAGE MEANS FOLLOWING SAID DELAY MEANS FOR TEMPORARILY STORING DIGITS CONTAINED IN THE DIGIT PERIODS OF A RECEIVED TIME SLOT, AND MEANS FOR ABSTRACTING SAID DIGITS FROM THE STORAGE MEANS COINCIDENTALLY WITH LOCALLY DEMARCATED DIGIT PERIODS.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |