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GB1530631A - Control unit for a communication network - Google Patents

Control unit for a communication network

Info

Publication number
GB1530631A
GB1530631A GB5295675A GB5295675A GB1530631A GB 1530631 A GB1530631 A GB 1530631A GB 5295675 A GB5295675 A GB 5295675A GB 5295675 A GB5295675 A GB 5295675A GB 1530631 A GB1530631 A GB 1530631A
Authority
GB
United Kingdom
Prior art keywords
control unit
communication network
dec
duplex lines
heading
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
GB5295675A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 US05/537,501 external-priority patent/US4009346A/en
Priority claimed from US05/537,212 external-priority patent/US4009344A/en
Priority claimed from US05/537,211 external-priority patent/US4009343A/en
Priority claimed from US05/537,281 external-priority patent/US4009345A/en
Priority claimed from US05/537,502 external-priority patent/US4009347A/en
Priority claimed from US05/590,547 external-priority patent/US4032719A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1530631A publication Critical patent/GB1530631A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18528—Satellite systems for providing two-way communications service to a network of fixed stations, i.e. fixed satellite service or very small aperture terminal [VSAT] system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • 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)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

1530631 Automatic exchange systems INTERNATIONAL BUSINESS MACHINES CORP 29 Dec 1975 [30 Dec 1974 (5) 26 June 1975] 52956/75 Heading H4K A t.d.m. switching system including a time switching memory interconnecting incoming and outgoing buffer stores provides connections between duplex lines and digital trunks in dependence on voice activity in said duplex lines. The disclosure is substantially covered by the contents of Specifications 1,526,960, 1,527,370, 1,526,301, 1,530,633 and USA Specification 4,009,343.
GB5295675A 1974-12-30 1975-12-29 Control unit for a communication network Expired GB1530631A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US05/537,501 US4009346A (en) 1974-12-30 1974-12-30 Distributional activity compression
US05/537,212 US4009344A (en) 1974-12-30 1974-12-30 Inter-related switching, activity compression and demand assignment
US05/537,211 US4009343A (en) 1974-12-30 1974-12-30 Switching and activity compression between telephone lines and digital communication channels
US05/537,281 US4009345A (en) 1974-12-30 1974-12-30 External management of satellite linked exchange network
US05/537,502 US4009347A (en) 1974-12-30 1974-12-30 Modular branch exchange and nodal access units for multiple access systems
US05/590,547 US4032719A (en) 1975-06-26 1975-06-26 Modular slot interchange digital exchange

Publications (1)

Publication Number Publication Date
GB1530631A true GB1530631A (en) 1978-11-01

Family

ID=27560107

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5296375A Expired GB1530633A (en) 1974-12-30 1975-12-29 Digital switch apparatus for a communication network
GB5295675A Expired GB1530631A (en) 1974-12-30 1975-12-29 Control unit for a communication network

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB5296375A Expired GB1530633A (en) 1974-12-30 1975-12-29 Digital switch apparatus for a communication network

Country Status (1)

Country Link
GB (2) GB1530633A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113192527A (en) * 2021-04-28 2021-07-30 北京达佳互联信息技术有限公司 Method, apparatus, electronic device and storage medium for cancelling echo

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4287577A (en) * 1979-09-27 1981-09-01 Communications Satellite Corporation Interleaved TDMA terrestrial interface buffer
US4604658A (en) * 1981-10-13 1986-08-05 Victor Company Of Japan, Limited Memory control circuit for removing jitter
US4730305A (en) * 1986-04-11 1988-03-08 American Telephone And Telegraph Company, At&T Bell Laboratories Fast assignment technique for use in a switching arrangement
US5016247A (en) * 1989-08-07 1991-05-14 Ibm Corporation Multihop time assigned speech interpolation (TASI) system for telecommunication networks
CN107800471B (en) * 2017-11-17 2019-12-24 西安电子科技大学 Congestion Control Method for Satellite Random Access Based on Multipacket Reception

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113192527A (en) * 2021-04-28 2021-07-30 北京达佳互联信息技术有限公司 Method, apparatus, electronic device and storage medium for cancelling echo
CN113192527B (en) * 2021-04-28 2024-03-19 北京达佳互联信息技术有限公司 Methods, devices, electronic equipment and storage media for echo cancellation

Also Published As

Publication number Publication date
GB1530633A (en) 1978-11-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921229