US5086424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication terminal connection system
Assignee: Fujitsu Ltd
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Filing: 1990-02-09
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Granted: 1992-02-04
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Expires: 2010-02-09
Abstract
Abstract A communication terminal connection system couples at least one source terminals to a destination terminal via a line, and comprises a channel switch connected to the terminals, at least one multiplexer coupled to the channel switch which is coupled between the terminals and the multiplexer, and a control part coupled to the channel switch for switching and controlling a connection of the channel switch. The control part includes a first detection part for detecting a request-to-use information which is received from a source terminal and requests use of the multiplexer, a second detection part for detecting an identification number to which the multiplexer is coupled via the line when the first detection part detects the request-to-use information, and a connection part for detecting a destination identification number of the destination terminal which is received from the source terminal following the request-to-use information and for controlling the channel switch to couple the source terminal to the multiplexer when the destination identification number matches the identification number detected by the second detection part, thereby coupling the source terminal to the destination terminal via the line.
Inventors
- 👤 Kazutoshi Motohashi
- 👤 Takeshi Uehara
- 👤 Takashi Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:29
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04Q2213/00; H04Q2213/1302; H04Q2213/1304; H04Q2213/13056; H04Q2213/13097; H04Q2213/1322; H04Q2213/13292
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
222 words
A communiction terminal connection system for coupling at least one of first communication terminals, each providing request-to-use information and a respective destination identification number to a second communication terminal having a respective one of the destination identification numbers via a line, comprising: a plurality of multiplexers each having an identification number; channel switch means for operatively connecting said first communiction terminals to at least one of said multiplexers and control means operatively coupled to said channel switch means, for switching and controlling a connection of said channel switch means, said control means including first detection means for detecting request-to-use information from one of said first communiction termainls and for requesting use of said one of said multiplexers; second detection means, operatively coupled to said first detection means, for detecting an identification number of said one of said multiplexer that is coupled via the line when said first detection means detects the request-to-use information; and connection means for detecting the destination identification number of said second communication terminal and for controlling said channel switch means to couple said one of said first communication termainsl to said one of said multiplexers when the destination identification number matches the identification number detected by said second means, so as to couple said one of said first communication termainsl to said second communication terminal via the line.
Claim 2
Dependent Claim
222 words
A communiction terminal connection system for coupling at least one of first communication terminals, each providing request-to-use information and a respective destination identification number to a second communication terminal having a respective one of the destination identification numbers via a line, comprising: a plurality of multiplexers each having an identification number; channel switch means for operatively connecting said first communiction terminals to at least one of said multiplexers and control means operatively coupled to said channel switch means, for switching and controlling a connection of said channel switch means, said control means including first detection means for detecting request-to-use information from one of said first communiction termainls and for requesting use of said one of said multiplexers; second detection means, operatively coupled to said first detection means, for detecting an identification number of said one of said multiplexer that is coupled via the line when said first detection means detects the request-to-use information; and connection means for detecting the destination identification number of said second communication terminal and for controlling said channel switch means to couple said one of said first communication termainsl to said one of said multiplexers when the destination identification number matches the identification number detected by said second means, so as to couple said one of said first communication termainsl to said second communication terminal via the line.
Claim 3
Dependent Claim
23 words
The communication terminal connection system as claimed in claim 1, wherein said channel switch means is coupled between said multiplexer and the line.
Claim 4
Dependent Claim
31 words
The communication termainl connection system as claimed in claim 1, further comprising: a plurality of other lines, and wherein said channel switch means is coupled to said plurality of other lines.
Claim 5
Dependent Claim
64 words
The communication terminal connection system as claimed in claim 1, wherein each of said multiplexers has a connectable capacity; and wherein said connection means of said control means includes: means for controlling said channel switch means to couple said one of said first communiction terminals to said one of said multiplexers when the connectable capacity of said one of said multiplexers is not exceeded.
Claim 6
Dependent Claim
60 words
The communication terminal connection system as claimed in claim 4, wherein said connection means of said control means includes: means for controlling said channel switch means to couple said one of said first communication terminals to said another multiplexer which is different from said one of said multiplexers when the connectable capacity of said one of said multiplexers is exceeded.
Claim 7
Dependent Claim
37 words
The communication terminal connection system as claimed in claim 5, wherein the respective connectable capacities of each of said multiplexers corresponds to a maxiumu number of said first communication terminals which can be coupled to said multiplexer.
Claim 8
Dependent Claim
54 words
The communication terminal connection system as calimed in claim 5, wherein the respective connectable capacities of each of said multiplexers corresponds to a maximum number of first communications terminal which can be coupled to said multiplexer and which ahve a total communication speed of low-speed signals which are transmitted from said first communication terminals.
Claim 9
Dependent Claim
25 words
The communication terminal connection system as claimed in claim 1, wherein each of said first communication termainsl including means for communicating at identical communication speeds.
Claim 10
Dependent Claim
25 words
the communication terminal connection system as claimed in claim 1, wherein each of said first communication terminals includes means for communicating at respective communication speeds.
Claim 11
Dependent Claim
17 words
The communication terminal connection system as claimed in claim 1, wherein the line comprises an analog line.
Claim 12
Dependent Claim
17 words
The communication terminal connection system as claimed in claim 1, wherein the line comprises a digital line.
Claim 13
Dependent Claim
29 words
The communication terminal connection system as claimed in claim 1, which further comprises: an interface circiut coupled between each of said first communication terminals and said channel switch means.
Claim 14
Dependent Claim
27 words
The communication terminal connection system as claimed in claim 1, which further comprises: an interface circiut coupled between said plurality of multiplexers and said channel switch means.
Claim 15
Dependent Claim
24 words
The communication terminal connection system as claimed in claim 1, which fruther comprises: a trunk coupled between said channel switch means and the line.
Claim 16
Dependent Claim
27 words
The communication terminal connection system as claimed in claim 1, wherein said channel switch means and said control means form a part of a private branch exchange.
Claim 17
Dependent Claim
133 words
The communication terminal connection system as claimed in claim 1, wherein said second detection means of said control means includes: multiplexer management table means for storing unit number data, in-use flag data, connected dial number dta and connected number data for each of said plurality of multiplexers, said unit number data representing the unit number for each of said multiplexers in use, said connected dial number data representing a dial number to which said one of said multiplexers in use is coupled, said connected number data representing a number of first communication termainls which are coupled to said plurality of multiplexers, said one of said multiplexer is use forming at least a portion of a path which connects said one of said first communication terminals and said one of said second communiction terminals.
Claim 18
Dependent Claim
149 words
The communication terminal connection system as claimed in claim 1, wherein said second detection means of said control means includes: multiplexer meanagement table means for storing unit number data, in-use flag data, connected dial number data and connected speed data for each of said plurality of multiplexers, said unt number data representing the unit number for each of said multiplexers, said in-use flag data representing whether or not said one of said multiplexers in use, said connected dial number data representing a dial number to which said one of said multiplexers in use is coupled, said connected speed dat representing a total communication speed of said first communication terminals which are coupled to said plurality of multiplexers, said one of said multiplexers in use forming at least a portion of a path which connects said one of said first communication terminals and said one of said second communication terminals.
Claim 19
Dependent Claim
20 words
The communication terminal connection system as claimed in claim 1, wherein the line couples to an integrated services digital network.
Claim 20
Dependent Claim
27 words
The communication terminal connection system as claimed in claim 1, wherein said reuest=to=use information comprises: one of a feature access code and a call set up message.
Claim 21
Dependent Claim
29 words
The communication terminal connection system as claimed in claim 1, wherein said first communication terminal comprises a low-speed communiction terminal and wherein said line comprises a high-speed communication terminal.
Claim 22
Dependent Claim
43 words
The communication terminal connection system as claimed in claim 1, wherein said second detection means includes: multiplexer meanagement table means for storing unit number data, in-use flag data, connected dial number data and connected number data for each of said plurality of multiplexers.
Claim 23
Dependent Claim
42 words
The communication terminal connection system as claimed in claim 1, wherein said detection means includes: multiplexer management table means for storing unit number data, in-use flag data, connected dial number data and connected speed data for each of said plurality of multiplexers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-03 | 1995-08-05 | 1996-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-03 | 1999-08-05 | 2000-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-03 | 2003-08-05 | 2004-02-04 | $7700.00 | Window Closed / Lapsed |