DE3885888D1 - TRANSMISSION SYSTEM. - Google Patents

TRANSMISSION SYSTEM.

Info

Publication number
DE3885888D1
DE3885888D1 DE88900831T DE3885888T DE3885888D1 DE 3885888 D1 DE3885888 D1 DE 3885888D1 DE 88900831 T DE88900831 T DE 88900831T DE 3885888 T DE3885888 T DE 3885888T DE 3885888 D1 DE3885888 D1 DE 3885888D1
Authority
DE
Germany
Prior art keywords
transmission system
transmission
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 - Fee Related
Application number
DE88900831T
Other languages
German (de)
Other versions
DE3885888T2 (en
Inventor
John Brownlie
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications 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
Priority claimed from GB878700669A external-priority patent/GB8700669D0/en
Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of DE3885888D1 publication Critical patent/DE3885888D1/en
Application granted granted Critical
Publication of DE3885888T2 publication Critical patent/DE3885888T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/235—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers combined with adaptive equaliser
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
DE3885888T 1987-01-13 1988-01-13 TRANSMISSION SYSTEM. Expired - Fee Related DE3885888T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB878700669A GB8700669D0 (en) 1987-01-13 1987-01-13 Transmission system
PCT/GB1988/000019 WO1988005621A1 (en) 1987-01-13 1988-01-13 Transmission system
CA000557809A CA1321414C (en) 1987-01-13 1988-02-01 Transmission system

Publications (2)

Publication Number Publication Date
DE3885888D1 true DE3885888D1 (en) 1994-01-05
DE3885888T2 DE3885888T2 (en) 1994-07-07

Family

ID=25671687

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3885888T Expired - Fee Related DE3885888T2 (en) 1987-01-13 1988-01-13 TRANSMISSION SYSTEM.

Country Status (3)

Country Link
AU (1) AU618522B2 (en)
CA (1) CA1321414C (en)
DE (1) DE3885888T2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404219A (en) * 1964-05-20 1968-10-01 Army Usa In-band break-in system
US4481622A (en) * 1982-04-01 1984-11-06 Anderson Jacobson, Inc. High speed dial-up telephone circuit full duplex data transmission techniques
US4712235A (en) * 1984-11-19 1987-12-08 International Business Machines Corporation Method and apparatus for improved control and time sharing of an echo canceller

Also Published As

Publication number Publication date
CA1321414C (en) 1993-08-17
AU618522B2 (en) 1992-01-02
AU1153188A (en) 1988-08-10
DE3885888T2 (en) 1994-07-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee