DE69229892T2 - Fernsprechvermittlungsgerät - Google Patents

Fernsprechvermittlungsgerät

Info

Publication number
DE69229892T2
DE69229892T2 DE69229892T DE69229892T DE69229892T2 DE 69229892 T2 DE69229892 T2 DE 69229892T2 DE 69229892 T DE69229892 T DE 69229892T DE 69229892 T DE69229892 T DE 69229892T DE 69229892 T2 DE69229892 T2 DE 69229892T2
Authority
DE
Germany
Prior art keywords
exchange device
telephone exchange
telephone
exchange
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
DE69229892T
Other languages
English (en)
Other versions
DE69229892D1 (de
Inventor
Michihiro Izumi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of DE69229892D1 publication Critical patent/DE69229892D1/de
Application granted granted Critical
Publication of DE69229892T2 publication Critical patent/DE69229892T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers
    • 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
DE69229892T 1991-04-23 1992-04-22 Fernsprechvermittlungsgerät Expired - Fee Related DE69229892T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3092292A JP2744357B2 (ja) 1991-04-23 1991-04-23 構内交換装置

Publications (2)

Publication Number Publication Date
DE69229892D1 DE69229892D1 (de) 1999-10-07
DE69229892T2 true DE69229892T2 (de) 2000-03-30

Family

ID=14050345

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69229892T Expired - Fee Related DE69229892T2 (de) 1991-04-23 1992-04-22 Fernsprechvermittlungsgerät

Country Status (4)

Country Link
US (1) US5467395A (de)
EP (1) EP0511094B1 (de)
JP (1) JP2744357B2 (de)
DE (1) DE69229892T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06245246A (ja) * 1992-11-26 1994-09-02 Nec Corp デジタル音量制御装置
DE19517574A1 (de) * 1995-05-12 1996-11-14 Siemens Ag Verfahren und Einrichtung zur Echokompensatoranschaltung für Fernsprechverbindungen
US5903643A (en) * 1995-06-02 1999-05-11 Teleport Communications Group, Inc. Multi-line station interface
US6477248B1 (en) * 1995-06-02 2002-11-05 Teleport Communications Group Inc. Multi-line station interface
US5727031A (en) * 1995-06-30 1998-03-10 Telefonaktiebolaget Lm Ericsson Adaptive gain controller
US6614812B1 (en) 1995-12-23 2003-09-02 Samsung Electronics Co., Ltd. Computer telephony integrated module system
EP0847175A1 (de) * 1996-12-05 1998-06-10 AT&T Corp. Zwangsleitweglenkung für Anrufe zwischen Vermittlungen
KR100469403B1 (ko) * 1997-03-17 2005-05-19 엘지전자 주식회사 선택접속이가능한내선접속장치
KR100520161B1 (ko) 1998-12-30 2005-11-24 삼성전자주식회사 국설교환기와isdn키폰시스템과의코딩변환회로
JP5105665B2 (ja) * 2001-03-13 2012-12-26 キヤノン株式会社 通信装置および制御方法、並びにプログラム
DE502004008860D1 (de) * 2003-12-12 2009-03-05 Ems Chemie Ag Thermoplastischer Mehrschichtverbund
WO2005074240A2 (en) * 2004-01-29 2005-08-11 Volt Information Sciences, Inc. Voice interface board for providing operator services
KR101811755B1 (ko) * 2011-07-15 2018-01-26 엘지전자 주식회사 이동 단말기

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4220823A (en) * 1978-07-21 1980-09-02 Stromberg-Carlson Corporation Selectively controlled digital pad
NL177552C (nl) * 1979-05-02 1985-10-01 Nederlanden Staat Inrichting voor het onder gebruikmaking van een digitale correlatiemethode vaststellen van de aanwezigheid van elke van een aantal vaste frequenties in een signaal.
JPS5690666A (en) * 1979-12-24 1981-07-22 Fujitsu Ltd Call level compensation system
JPS5934791A (ja) * 1982-08-20 1984-02-25 Nec Corp パツド制御方式
JPS5944188A (ja) * 1982-09-06 1984-03-12 Nec Corp ライン回路パツド制御方式
US4577310A (en) * 1984-05-16 1986-03-18 Tie/Communications, Inc. Station interface for digital electronic telephone switching system having centralized digital audio processor
US4575584A (en) * 1984-07-05 1986-03-11 Honeywell Inc. Fail-safe digital phone
JPH07118752B2 (ja) * 1988-02-19 1995-12-18 キヤノン株式会社 電話交換装置
JPH0728436B2 (ja) * 1988-04-28 1995-03-29 松下電器産業株式会社 構内電話交換機
JPH07110070B2 (ja) * 1989-06-08 1995-11-22 松下電器産業株式会社 Ｉｓｄｎ網／端末に対するディジタルパッド挿入方法
JPH03132291A (ja) * 1989-10-18 1991-06-05 Fujitsu Ltd Ｐｂ信号検出方式
JP3085676B2 (ja) * 1989-10-30 2000-09-11 株式会社東芝 電話装置
US5175764A (en) * 1990-10-18 1992-12-29 Ag Communication Systems Corporation Enhanced high voltage line interface circuit
CA2029679A1 (en) * 1990-11-09 1992-05-10 Raymond C. Crowdis Analog/digital telephone test set
US5155772A (en) * 1990-12-11 1992-10-13 Octel Communications Corporations Data compression system for voice data
US5163050A (en) * 1991-01-23 1992-11-10 Digital Sound Corporation Configurable parameter dtmf detector
US5216704A (en) * 1991-06-12 1993-06-01 Coherent Communications Systems Corp. Method for remote power fail detection and maintaining continuous operation for data and voice devices operating over local loops
KR940004432B1 (ko) * 1991-10-02 1994-05-25 삼성전자 주식회사 전자교환기의 PCM CODEC(DOCER and DECODER) 집적회로
US5323460A (en) * 1992-01-07 1994-06-21 Ag Communication Systems Corporation Enhanced subscriber line interface circuit
GB2396644B (en) * 2000-06-19 2004-10-13 Shell Oil Co Coupling an expandable tubular member to a preexisting structure

Also Published As

Publication number Publication date
EP0511094A2 (de) 1992-10-28
EP0511094B1 (de) 1999-09-01
EP0511094A3 (en) 1993-12-22
DE69229892D1 (de) 1999-10-07
JP2744357B2 (ja) 1998-04-28
JPH04323941A (ja) 1992-11-13
US5467395A (en) 1995-11-14

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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