ES8503184A1 - Integrated voice/data/control switching system. - Google Patents

Integrated voice/data/control switching system.

Info

Publication number
ES8503184A1
ES8503184A1 ES532231A ES532231A ES8503184A1 ES 8503184 A1 ES8503184 A1 ES 8503184A1 ES 532231 A ES532231 A ES 532231A ES 532231 A ES532231 A ES 532231A ES 8503184 A1 ES8503184 A1 ES 8503184A1
Authority
ES
Spain
Prior art keywords
node
nodes
stations
signal stream
network signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES532231A
Other languages
Spanish (es)
Other versions
ES532231A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CXC CORP
Original Assignee
CXC CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/491,551 external-priority patent/US4587651A/en
Priority claimed from US06/582,069 external-priority patent/US4598397A/en
Priority claimed from US06/582,182 external-priority patent/US4755988A/en
Application filed by CXC CORP filed Critical CXC CORP
Publication of ES8503184A1 publication Critical patent/ES8503184A1/en
Publication of ES532231A0 publication Critical patent/ES532231A0/en
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
    • H04L5/24—Arrangements affording multiple use of the transmission path using time-division multiplexing with start-stop synchronous converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13332—Broadband, CATV, dynamic bandwidth allocation

Abstract

A communications system that improves upon the availability of communications paths between devices and simplifies the connectivity requirements to communicate data and control information to and from a remote station (11). System nodes (21) are provided which are disposed along a time multiplex network signal stream. The nodes (21) serve to interface remote stations (11) to the network signal stream (25A, 25B) and may also switch information to different stations (11) connected to the same node (21). The nodes (21) are operative to allocate a variable bandwidth of the network signal stream for data communications between devices connected to different nodes. The nodes (21) include switching devices that may be configured to accomodate stations (11) that operate at different speeds. Allocation of bandwidth may be dynamically varied such that system resources are not unneccessarily diverted. Control of bandwidth allocation and internal switching within the node is accomplished via control information communicated to and from the node. Such control information may be contained within the network signal stream and decoded by the node (21) or communicated to the node (21) via a dedicated control communications line. Control information may be encoded into the signal stream communicated between the system node (21) and the remote station (11). Thus, communication of data and control signals between the stations (11) and the system node (21) does not require complex wiring. Accordingly, individual stations (11) may be more conveniently located.
ES532231A 1983-05-04 1984-05-04 A DIGITAL COMMUNICATION SYSTEM Granted ES532231A0 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/491,551 US4587651A (en) 1983-05-04 1983-05-04 Distributed variable bandwidth switch for voice, data, and image communications
US06/582,069 US4598397A (en) 1984-02-21 1984-02-21 Microtelephone controller
US06/582,182 US4755988A (en) 1983-05-04 1984-02-21 Data communications switching device having multiple switches operating at plural selectable data rates

Publications (2)

Publication Number Publication Date
ES8503184A1 true ES8503184A1 (en) 1985-02-01
ES532231A0 ES532231A0 (en) 1985-02-01

Family

ID=27413904

Family Applications (2)

Application Number Title Priority Date Filing Date
ES532231A Granted ES532231A0 (en) 1983-05-04 1984-05-04 A DIGITAL COMMUNICATION SYSTEM
ES532232A Expired ES8604707A1 (en) 1983-05-04 1984-05-04 Integrated voice/data/control switching system.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES532232A Expired ES8604707A1 (en) 1983-05-04 1984-05-04 Integrated voice/data/control switching system.

Country Status (5)

Country Link
EP (2) EP0142551A4 (en)
AU (2) AU570983B2 (en)
CA (2) CA1242819A (en)
ES (2) ES532231A0 (en)
WO (1) WO1984004435A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8504810D0 (en) * 1985-02-25 1985-03-27 Gen Electric Co Plc Local communication system
EP0192795B1 (en) * 1985-02-28 1989-08-02 International Business Machines Corporation Communication system comprising overlayed multiple-access transmission networks
GB8515347D0 (en) * 1985-06-18 1985-07-17 Plessey Co Plc Telecommunications exchanges
GB2232326A (en) * 1989-05-26 1990-12-05 Philips Electronic Associated Data transmission over a tdm duplex frequency channel
US5164960A (en) * 1990-02-15 1992-11-17 Advanced Micro Devices Inc. Medium attachment unit for use with twisted pair local area network
DE4134360C1 (en) * 1991-10-17 1993-04-15 Ant Nachrichtentechnik Gmbh, 7150 Backnang, De
JP3664050B2 (en) * 2000-06-28 2005-06-22 日本電気株式会社 Connection recovery device
US7675867B1 (en) * 2006-04-19 2010-03-09 Owl Computing Technologies, Inc. One-way data transfer system with built-in data verification mechanism
WO2012012266A2 (en) 2010-07-19 2012-01-26 Owl Computing Technologies. Inc. Secure acknowledgment device for one-way data transfer system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251865A (en) * 1978-12-08 1981-02-17 Motorola, Inc. Polling system for a duplex communications link
US4271507A (en) * 1979-06-07 1981-06-02 Ford Motor Company Communication broadcast channel interface
US4445213A (en) * 1979-07-31 1984-04-24 Bell Telephone Laboratories, Incorporated Communication line interface for controlling data information having differing transmission characteristics
US4251880A (en) * 1979-07-31 1981-02-17 Bell Telephone Laboratories, Incorporated Digital loop switch for controlling data information having differing transmission characteristics
NL8104368A (en) * 1981-09-23 1983-04-18 Philips Nv DIGITAL TELEPHONE CONTROL PANEL WITH DEVICES FOR HANDLING PACKAGE-SWITCHED DATA.
US4445116A (en) * 1982-03-05 1984-04-24 Burroughs Corporation Method for allocating bandwidth between stations in a local area network

Also Published As

Publication number Publication date
AU2963384A (en) 1984-11-19
EP0141852A4 (en) 1988-06-16
AU570983B2 (en) 1988-03-31
ES532232A0 (en) 1986-02-01
WO1984004435A1 (en) 1984-11-08
AU571236B2 (en) 1988-04-14
CA1242819A (en) 1988-10-04
ES8604707A1 (en) 1986-02-01
EP0142551A1 (en) 1985-05-29
ES532231A0 (en) 1985-02-01
CA1243787A (en) 1988-10-25
AU2965584A (en) 1984-11-19
EP0142551A4 (en) 1988-06-16
EP0141852A1 (en) 1985-05-22

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