SE8004569L - Universell signalgenerator for alstring av for telefonsystem avsedda hognivasignaler - Google Patents

Universell signalgenerator for alstring av for telefonsystem avsedda hognivasignaler

Info

Publication number
SE8004569L
SE8004569L SE8004569A SE8004569A SE8004569L SE 8004569 L SE8004569 L SE 8004569L SE 8004569 A SE8004569 A SE 8004569A SE 8004569 A SE8004569 A SE 8004569A SE 8004569 L SE8004569 L SE 8004569L
Authority
SE
Sweden
Prior art keywords
signals
high level
data byte
switching
uhlsg
Prior art date
Application number
SE8004569A
Other languages
Unknown language ( )
English (en)
Inventor
R Hayward
J Bottrill
R C Dittburner
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of SE8004569L publication Critical patent/SE8004569L/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
SE8004569A 1979-06-29 1980-06-19 Universell signalgenerator for alstring av for telefonsystem avsedda hognivasignaler SE8004569L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000330867A CA1118922A (en) 1979-06-29 1979-06-29 Universal signal generator for generating telephone system high level signals

Publications (1)

Publication Number Publication Date
SE8004569L true SE8004569L (sv) 1980-12-30

Family

ID=4114576

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8004569A SE8004569L (sv) 1979-06-29 1980-06-19 Universell signalgenerator for alstring av for telefonsystem avsedda hognivasignaler

Country Status (6)

Country Link
US (1) US4284854A (sv)
JP (1) JPS567554A (sv)
CA (1) CA1118922A (sv)
DE (1) DE3023113A1 (sv)
GB (1) GB2053620B (sv)
SE (1) SE8004569L (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354062A (en) * 1980-01-31 1982-10-12 Bell Telephone Laboratories, Incorporated Communication system signaling circuit
EP0094162A3 (en) * 1982-05-10 1984-12-27 Northern Telecom Limited A method of producing voltage signals with a dc component and great dynamic range
JPH0626382B2 (ja) * 1984-08-08 1994-04-06 株式会社日立製作所 過渡特性測定法
CA1234939A (en) * 1985-10-28 1988-04-05 Brian J. Pollard Power amplifier
DE3926149C2 (de) * 1988-08-15 1995-03-23 Mitel Corp Schaltungskarte für eine Telefonzentrale
US4962527A (en) * 1989-05-22 1990-10-09 Siemens Transmission Systems, Inc. Series ringing signal generator
JP3189054B2 (ja) * 1991-05-07 2001-07-16 富士通株式会社 加入者装置
KR100347518B1 (ko) * 1999-12-24 2002-08-07 주식회사 케이티 주기적인 시간신호 발생방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081613A (en) * 1976-05-14 1978-03-28 International Telephone And Telegraph Corporation Bi-directional signalling arrangement for telecommunications systems
IT1079588B (it) * 1977-02-14 1985-05-13 Sits Soc It Telecom Siemens Generatore di chiamata statico per sistemi di telecomunicazioni
DE2855151A1 (de) * 1978-12-20 1980-07-10 Siemens Ag Digitaler hoertongenerator

Also Published As

Publication number Publication date
DE3023113A1 (de) 1981-01-08
US4284854A (en) 1981-08-18
GB2053620A (en) 1981-02-04
JPS567554A (en) 1981-01-26
GB2053620B (en) 1983-10-26
CA1118922A (en) 1982-02-23

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