Patent US4813035A successfully refreshed from Google Patents.
US4813035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmultiplexer virtual group distribution frame
Assignee: Alcatel Lucent Holdings Inc
•
Filing: 1986-11-04
•
Granted: 1989-03-14
•
Expires: 2006-11-04
Abstract
Abstract A transmultiplexer for use in a telephone system is disclosed. The transmultiplexer includes a programmable virtual distribution frame feature which provides for information traffic to be switched from one digital group facility to another analog facility in both time division multiplexed and frequency division multiplexed directions.
Inventors
- 👤 H. John Bishop
- 👤 Morley M. Merriss
- 👤 Thomas L. Ohlsson
- 👤 Terrence G. Sopira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:41
CPC Classifications
H; H04; H04J; H04J4/00; H04J4/005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
104 words
A transmultiplexer comprising means connected between digital facilities and analog facilities for translating information between time division multiplex (TDM) and frequency division multiplexed (FDM) formats on said digital and analog facilities, respectively, wherein information in said TDM format is connected via a plurality of multichannel T-1 type lines and wherein information in said FDM format is connected via a plurality of multichannel supergroups, and hand held type programmable control means for controlling the switching of information between said TDM and FDM formats, said programmable control means including means for controlling the switching of information between any one channel group to any other channel group.
Claim 2
Dependent Claim
104 words
A transmultiplexer comprising means connected between digital facilities and analog facilities for translating information between time division multiplex (TDM) and frequency division multiplexed (FDM) formats on said digital and analog facilities, respectively, wherein information in said TDM format is connected via a plurality of multichannel T-1 type lines and wherein information in said FDM format is connected via a plurality of multichannel supergroups, and hand held type programmable control means for controlling the switching of information between said TDM and FDM formats, said programmable control means including means for controlling the switching of information between any one channel group to any other channel group.
Claim 3
Dependent Claim
23 words
A transmultiplexer as in claim 1 wherein said digital facilities include pulse code modultated (PCM) digroups, and wherein said analog facilities include supergroups.
Claim 4
Dependent Claim
112 words
A transmultiplexer comprising means connected between digital facilities and analog facilities for translating information between time division multiplexed (TDM) and frequency division multiplexed (FDM) formats on said digital and analog facilities, connected via a plurality of multichannel T-1 type lines and wherein information in said FDM format is connected via a plurality of multichannel supergroups, and a virtual group distribution frame, said distribution frame including hand held type programmable control means for controlling the switching of information between said digital and analog facilities for both said TDM and FDM formats, said programmable control means including means for controlling the switching of information between any one channel group to any other channel group.
Claim 5
Dependent Claim
112 words
A transmultiplexer comprising means connected between digital facilities and analog facilities for translating information between time division multiplexed (TDM) and frequency division multiplexed (FDM) formats on said digital and analog facilities, connected via a plurality of multichannel T-1 type lines and wherein information in said FDM format is connected via a plurality of multichannel supergroups, and a virtual group distribution frame, said distribution frame including hand held type programmable control means for controlling the switching of information between said digital and analog facilities for both said TDM and FDM formats, said programmable control means including means for controlling the switching of information between any one channel group to any other channel group.
Claim 6
Dependent Claim
117 words
In a transmultiplexer including means connected between dilgital facilities and analog facilities for translating information between time division multiplexed (TDM) and frequency division multiplexed (FDM) formats on said digital and analog facilities, respectively, wherein information in said TDM format is connected via a plurality of multichannel T-1 type lines and wherein information in said FDM format is connected via a plurality of multichannel supergroups, a virtual group distribution frame comprising hand held type programmable control means for controlling the switching of information between said digital and analog facilities for both said TDM and FDM formats, said programmable control means including means for controlling the switching of information between any one channel group to any other channel group.
Claim 7
Dependent Claim
117 words
In a transmultiplexer including means connected between dilgital facilities and analog facilities for translating information between time division multiplexed (TDM) and frequency division multiplexed (FDM) formats on said digital and analog facilities, respectively, wherein information in said TDM format is connected via a plurality of multichannel T-1 type lines and wherein information in said FDM format is connected via a plurality of multichannel supergroups, a virtual group distribution frame comprising hand held type programmable control means for controlling the switching of information between said digital and analog facilities for both said TDM and FDM formats, said programmable control means including means for controlling the switching of information between any one channel group to any other channel group.
References Cited (Backward Citations)
US3585306A
Cited
US4075429A
Cited
US4131766A
Cited
US4117541A
Cited
US4199660A
Cited
US4237551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-13 | 1992-09-12 | 1993-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-13 | 1996-09-12 | 1997-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-13 | 2000-09-12 | 2001-03-14 | $7700.00 | Window Closed / Lapsed |