US4638474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication system
Assignee: Alcatel Lucent NV
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Filing: 1984-12-14
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Granted: 1987-01-20
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Expires: 2004-12-14
Abstract
Abstract A communication system includes a digital switching network, a first apparatus for establishing communication paths interconnected thereto via a terminal element and a second apparatus for establishing communication paths interconnected directly thereto. The second apparatus being dedicated to communicating with the network via packetized messages.
Inventors
- 👤 Alain R. G. Chalet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:08
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/50; H04L12/52; H04Q; H04Q11/00; H04Q11/04; H04Q11/0407
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
An apparatus for establishing communications paths comprising: a digital switching network having at least one terminal element interconnected therewith for providing access thereto; means for interfacing a plurality of subscribers with said switching network, said interfacing means including a first apparatus for establishing communication paths and a second apparatus for establishing communication paths, said first apparatus being adapted to interface said plurality of subscribers to said switching network via said terminal element and said second apparatus being adapted to interface said same plurality of subscribers directly to said switching network.
Claim 2
Independent Claim
90 words
An apparatus for establishing communications paths comprising: a digital switching network having at least one terminal element interconnected therewith for providing access thereto; means for interfacing a plurality of subscribers with said switching network, said interfacing means including a first apparatus for establishing communication paths and a second apparatus for establishing communication paths, said first apparatus being adapted to interface said plurality of subscribers to said switching network via said terminal element and said second apparatus being adapted to interface said same plurality of subscribers directly to said switching network.
Claim 3
Dependent Claim
18 words
System as claimed in claim 1 wherein said second apparatus is adapted to establish packetized data communication paths.
Claim 4
Dependent Claim
28 words
System as claimed in claim 1 wherein said first apparatus and said terminal element associated therewith establish circuit switched paths and said second apparatus establishers packet switched paths.
Claim 5
Dependent Claim
23 words
System as claimed in claim 3 wherein each said terminal element includes means for establishing said circuit switched paths through said switching network.
Claim 6
Dependent Claim
107 words
The telecommunication switching system, comprising: a digital switching network; a terminal element connected to said digital switching network; first processing means associated with said terminal element for establishing circuit switched paths through said switching network, and first processing means being capable of processing communications at a predetermined speed; first interface means for interfacing between a plurality of subscriber lines and said terminal element; second interface means for interfacing between said plurality of subscriber lines and said digital switching network; and second processing means associated with said second interface means for controlling said interface means and processing data packets at a speed substantially higher than said predetermined speed.
Claim 7
Dependent Claim
107 words
The telecommunication switching system, comprising: a digital switching network; a terminal element connected to said digital switching network; first processing means associated with said terminal element for establishing circuit switched paths through said switching network, and first processing means being capable of processing communications at a predetermined speed; first interface means for interfacing between a plurality of subscriber lines and said terminal element; second interface means for interfacing between said plurality of subscriber lines and said digital switching network; and second processing means associated with said second interface means for controlling said interface means and processing data packets at a speed substantially higher than said predetermined speed.
Claim 8
Dependent Claim
28 words
A telecommunication switching system as described in claim 5 in which the second interface means includes a parallel interface port to which the second processing means is connected.
References Cited (Backward Citations)
US4238851A
Cited
US4539676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-19 | 1990-07-21 | 1991-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-19 | 1994-07-21 | 1995-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-19 | 1998-07-21 | 1999-01-20 | $7700.00 | Window Closed / Lapsed |