US4063041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of transmitting digital data of a PCM/TDM telecommunication network
Assignee: Siemens AG
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Filing: 1976-03-17
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Granted: 1977-12-13
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Expires: 1996-03-17
Abstract
Abstract The invention relates to a method of transmitting digital data between a digitally operating subscriber station and the subscriber concentrator of a PCM/TDM telecommunication network via a two-wire trunk line at a lesser signalling bit rate than on the TDM highways of the network. Information blocks are transmitted in both directions with at least two PCM words which correspond to successive information samplings of the digital data.
Inventors
- 👤 Friedemann Vollnhals
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
H; H04; H04L; H04L5/00; H04L5/14; H04L5/1469; H04L5/1484; H04L5/1492
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A method for transmitting digital data between a digitally operating subscriber station and the subscriber concentrator of a PCM/TDM telecommunication network via a two-wire trunk line at a lesser signalling bit rate than on the TDM highways of the network, wherein the improvement comprises alternately transmitting in both directions of transmission information blocks with at least two PCM words which correspond to successive information samplings of the digital data.
Claim 2
Independent Claim
69 words
A method for transmitting digital data between a digitally operating subscriber station and the subscriber concentrator of a PCM/TDM telecommunication network via a two-wire trunk line at a lesser signalling bit rate than on the TDM highways of the network, wherein the improvement comprises alternately transmitting in both directions of transmission information blocks with at least two PCM words which correspond to successive information samplings of the digital data.
References Cited (Backward Citations)
US3665405A
Cited
US3652803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |