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US5384766A Expired / Lapsed US ⏱️ 0.0 years remaining

LAN management system in electronic switching apparatus

Assignee: Fujitsu Ltd
•
Filing: 1993-09-21
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Granted: 1995-01-24
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Expires: 2013-09-21
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Abstract

Abstract A switching apparatus for constructing a system integrating a telephone switching network and a LAN includes: line interface sections, each connected to a transmission line for transmitting a signal on which low-speed data and high-speed data are multiplexed; a low-speed data switch for switching low-speed data demultiplexed in each line interface section; a high-speed data switch for switching high-speed data demultiplexed in each line interface section; and a processor for monitoring and controlling the data traffic passing through the low-speed data switch and high-speed data switch. An address in a designated position in the high-speed data demultiplexed in each line interface section is read out, whereby the association between the low-speed data terminal and high-speed data terminal is identified and stored. By referring to this association, management of LAN terminals can be performed using the maintenance operation procedures used in a conventional electronic switching apparatus.

Inventors

  • 👤 Kouji Yamato
  • 👤 Kazuhiko Ito

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 14:52
CPC Classifications
H; H04; H04L; H04L41/00; H04L41/24; H04L12/00; H04L12/28; H04L12/44; H04L12/64; H04L12/6402; H04L41/26; H04M; H04M3/00; H04M3/42; H04M3/42136; H04M3/42153; H04M3/42161; Y; Y10; Y10S; Y10S370/00; Y10S370/908

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 234 words
A switching apparatus to which a plurality of low-speed terminals and a plurality of high-speed terminals are connected via a plurality of transmission lines each for transmitting a signal in which low-speed data from a low-speed terminal and high-speed data from a high-speed terminal are multiplexed, and which is suitable for constructing a switching network among said low-speed terminals and a local area network among said high-speed terminals, comprising: a plurality of line interface sections, each connected to one of said transmission lines, for demultiplexing the multiplexed signal fed via the transmission line connected thereto into low-speed data and high-speed data, and for multiplexing low-speed data and high-speed data for transmission down the transmission line connected thereto; a low-speed data switch, connected to said line interface sections, for performing switching of said low-speed data; a high-speed data switch, connected to said line interface sections, for performing switching of said high-speed data; storage means for storing the association between the low-speed terminal and high-speed terminal connected to each of said transmission lines; and monitoring control means, connected to said low-speed data switch, said high-speed data switch, and said storage means, for monitoring and controlling the traffic of low-speed data among said low-speed terminals, and for monitoring and controlling the traffic of high-speed data among said high-speed terminals in association with the corresponding low-speed terminals on the basis of the association stored in said storage means.
Claim 2
Dependent Claim 234 words
A switching apparatus to which a plurality of low-speed terminals and a plurality of high-speed terminals are connected via a plurality of transmission lines each for transmitting a signal in which low-speed data from a low-speed terminal and high-speed data from a high-speed terminal are multiplexed, and which is suitable for constructing a switching network among said low-speed terminals and a local area network among said high-speed terminals, comprising: a plurality of line interface sections, each connected to one of said transmission lines, for demultiplexing the multiplexed signal fed via the transmission line connected thereto into low-speed data and high-speed data, and for multiplexing low-speed data and high-speed data for transmission down the transmission line connected thereto; a low-speed data switch, connected to said line interface sections, for performing switching of said low-speed data; a high-speed data switch, connected to said line interface sections, for performing switching of said high-speed data; storage means for storing the association between the low-speed terminal and high-speed terminal connected to each of said transmission lines; and monitoring control means, connected to said low-speed data switch, said high-speed data switch, and said storage means, for monitoring and controlling the traffic of low-speed data among said low-speed terminals, and for monitoring and controlling the traffic of high-speed data among said high-speed terminals in association with the corresponding low-speed terminals on the basis of the association stored in said storage means.
Claim 3
Dependent Claim 55 words
A switching apparatus according to claim 1, further comprising means, connected to said line interface sections, for determining the association between the low-speed terminal and high-speed terminal by reading the address of the high-speed terminal contained in the high-speed data demultiplexed in each line interface section, and for writing the association into said storage means.
Claim 4
Dependent Claim 39 words
A switching apparatus according to claim 2, further comprising means, connected to said monitoring control means, for reading and displaying via said monitoring control means the association between the low-speed terminal and high-speed terminal stored in said storage means.
Claim 5
Dependent Claim 35 words
A switching apparatus according to claim 2, wherein in accordance with a blocking instruction input by designating a particular low-speed terminal, said monitoring control means blocks the high-speed terminal associated with the designated low-speed terminal.
Claim 6
Dependent Claim 28 words
A switching apparatus according to claim 2, wherein said monitoring control means detects a fault in any one of said high-speed terminals and outputs the detected fault status.
Claim 7
Dependent Claim 27 words
A switching apparatus according to claim 5, wherein said monitoring control means outputs the detected fault status to the low-speed terminal associated with said faulty high-speed terminal.
Claim 8
Dependent Claim 19 words
A switching apparatus according to claim 2, wherein said monitoring control means monitors the traffic for each high-speed terminal.
Claim 9
Dependent Claim 23 words
A switching apparatus according to claim 2, wherein said monitoring control means monitors the high-speed data traffic flowing through said high-speed data switch.

References Cited (Backward Citations)

US4244046A Cited
US4375681A Cited
US4535448A Cited
US4601028A Cited
US4740963A Cited
JPS62286351A Cited
US5058104A Cited
US5005171A Cited
US5005170A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-01-23 1998-07-25 1999-01-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-01-23 2002-07-25 2003-01-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-01-23 2006-07-25 2007-01-24 $7700.00 Window Closed / Lapsed

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