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GB1462003A - Telecommunication systems - Google Patents

Telecommunication systems

Info

Publication number
GB1462003A
GB1462003A GB92975A GB92975A GB1462003A GB 1462003 A GB1462003 A GB 1462003A GB 92975 A GB92975 A GB 92975A GB 92975 A GB92975 A GB 92975A GB 1462003 A GB1462003 A GB 1462003A
Authority
GB
United Kingdom
Prior art keywords
exchange
entered
store
ready
send
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
GB92975A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB92975A priority Critical patent/GB1462003A/en
Priority to DE19752558479 priority patent/DE2558479A1/en
Priority to BE2054752A priority patent/BE837415R/en
Priority to FR7600443A priority patent/FR2297535A1/en
Publication of GB1462003A publication Critical patent/GB1462003A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
    • H04L12/52—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

1462003 Automatic exchange systems STANDARD TELEPHONES & CABLES Ltd 9 Jan 1975 929/75 Heading H4K In an automatic exchange system having a common control, each subscriber's terminal, Figs. 5, 6 (not shown), includes a store (SRA) into which digits characterizing a wanted subscriber's line are entered by means of a digit sender (DK). When the entire called number has been entered into the store the caller actuates an end-of-selection means (EOSK) which transmits a "ready-to-send" signal to the exchange in response to which the common control, when it is ready to process the call, sends back to the terminal a "proceed to send" signal which causes the wanted number to be sent to the exchange to enable call establishment. Preferably the store into which the digits are entered, e.g. as an 8-bit code, is a circulating (i.e. non-destructive) one, so that if a called line is engaged a subsequent attempt to establish a connection may be made merely by actuating the end-of-selection means. The system, which operates in TDM manner using PCM, may transmit either speech or data, using an exchange such as that disclosed in Specification 1,444,804.
GB92975A 1975-01-09 1975-01-09 Telecommunication systems Expired GB1462003A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB92975A GB1462003A (en) 1975-01-09 1975-01-09 Telecommunication systems
DE19752558479 DE2558479A1 (en) 1975-01-09 1975-12-24 COMPUTER-CONTROLLED TELEPHONE SWITCHING SYSTEM
BE2054752A BE837415R (en) 1975-01-09 1976-01-09 ADVANCED TELECOMMUNICATIONS SYSTEMS
FR7600443A FR2297535A1 (en) 1975-01-09 1976-01-09 AUTOMATIC TELECOMMUNICATIONS CENTRALS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB92975A GB1462003A (en) 1975-01-09 1975-01-09 Telecommunication systems

Publications (1)

Publication Number Publication Date
GB1462003A true GB1462003A (en) 1977-01-19

Family

ID=9713005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB92975A Expired GB1462003A (en) 1975-01-09 1975-01-09 Telecommunication systems

Country Status (4)

Country Link
BE (1) BE837415R (en)
DE (1) DE2558479A1 (en)
FR (1) FR2297535A1 (en)
GB (1) GB1462003A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002082A1 (en) * 1978-11-04 1981-07-23 Gl Inf Vychislite Method of automatic switching in a communication network and switching centre therefor
US4338944A (en) 1980-06-16 1982-07-13 The Kendall Company Therapeutic device
US7276076B2 (en) 2004-07-21 2007-10-02 Arizant Healthcare Inc. Perioperative warming device
US7931682B2 (en) 2004-12-07 2011-04-26 Arizant Healthcare Inc. Warming device with varied permeability

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3023880C2 (en) * 1980-06-26 1982-08-19 Diehl GmbH & Co, 8500 Nürnberg Bus system with address and status lines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932709A (en) * 1973-04-16 1976-01-13 General Teletronics Incorporated Electronic business telephone
FR2237382A1 (en) * 1973-07-09 1975-02-07 Zock Joseph Telephone subscriber dialling - whereby repeated attempts at a connection are made automatically by storing the number

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002082A1 (en) * 1978-11-04 1981-07-23 Gl Inf Vychislite Method of automatic switching in a communication network and switching centre therefor
US4338944A (en) 1980-06-16 1982-07-13 The Kendall Company Therapeutic device
US7276076B2 (en) 2004-07-21 2007-10-02 Arizant Healthcare Inc. Perioperative warming device
US7931682B2 (en) 2004-12-07 2011-04-26 Arizant Healthcare Inc. Warming device with varied permeability

Also Published As

Publication number Publication date
FR2297535B1 (en) 1982-12-10
FR2297535A1 (en) 1976-08-06
BE837415R (en) 1976-07-09
DE2558479A1 (en) 1976-07-15

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee