AU2177583A - Switching device - Google Patents

Switching device

Info

Publication number
AU2177583A
AU2177583A AU21775/83A AU2177583A AU2177583A AU 2177583 A AU2177583 A AU 2177583A AU 21775/83 A AU21775/83 A AU 21775/83A AU 2177583 A AU2177583 A AU 2177583A AU 2177583 A AU2177583 A AU 2177583A
Authority
AU
Australia
Prior art keywords
switching device
switching
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.)
Granted
Application number
AU21775/83A
Other versions
AU571469B2 (en
Inventor
Edward Albert Feuell
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
STC 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 STC PLC filed Critical STC PLC
Publication of AU2177583A publication Critical patent/AU2177583A/en
Application granted granted Critical
Publication of AU571469B2 publication Critical patent/AU571469B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Electronic Switches (AREA)
AU21775/83A 1982-12-04 1983-11-29 Switching device Ceased AU571469B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8234673 1982-12-04
GB08234673A GB2132447B (en) 1982-12-04 1982-12-04 Switch device

Publications (2)

Publication Number Publication Date
AU2177583A true AU2177583A (en) 1984-06-07
AU571469B2 AU571469B2 (en) 1988-04-21

Family

ID=10534763

Family Applications (1)

Application Number Title Priority Date Filing Date
AU21775/83A Ceased AU571469B2 (en) 1982-12-04 1983-11-29 Switching device

Country Status (3)

Country Link
AU (1) AU571469B2 (en)
GB (1) GB2132447B (en)
NZ (1) NZ206346A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263961A2 (en) * 1986-09-12 1988-04-20 Siemens Aktiengesellschaft Circuitry for the injection of registering pulses for counting the charges to calling parties
US4887295A (en) * 1986-07-14 1989-12-12 Siliconix Limited Telephone instrument

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61224548A (en) * 1985-03-28 1986-10-06 Toshiba Corp Telephone set
BR8606792A (en) * 1985-07-18 1987-10-13 Int Standard Electric Corp TELEPHONE LINE SWITCH
JPS62137925A (en) * 1985-12-11 1987-06-20 Nec Corp Radio transmitter-receiver
DE3609706C1 (en) * 1986-03-21 1987-11-05 Siemens Ag Process for the electronic replication of the hook switch and the handsfree loudspeaker key in a handsfree loudspeaker telephone station
DE3738555A1 (en) * 1987-11-13 1989-05-24 Standard Elektrik Lorenz Ag ELECTRONIC EARTH BUTTON
FR2665037B1 (en) * 1990-07-23 1992-09-18 Bull Sa CLIPPING CIRCUIT.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1347929A (en) * 1972-02-17 1974-02-27 Standard Telephones Cables Ltd Telephone subscribers instruments
GB1447494A (en) * 1973-03-22 1976-08-25 Gen Electric Co Ltd Electric circuit arrangements for energising electromagnetic relays
NL8001136A (en) * 1980-02-26 1981-09-16 Philips Nv CIRCUIT FOR USE IN A TELEPHONE.
CA1136783A (en) * 1980-09-23 1982-11-30 Guy J. Chaput Telephone circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887295A (en) * 1986-07-14 1989-12-12 Siliconix Limited Telephone instrument
EP0263961A2 (en) * 1986-09-12 1988-04-20 Siemens Aktiengesellschaft Circuitry for the injection of registering pulses for counting the charges to calling parties
EP0263961A3 (en) * 1986-09-12 1989-04-05 Siemens Aktiengesellschaft Berlin Und Munchen Circuitry for the injection of registering pulses for counting the charges to calling parties

Also Published As

Publication number Publication date
GB2132447A (en) 1984-07-04
NZ206346A (en) 1987-02-20
AU571469B2 (en) 1988-04-21
GB2132447B (en) 1986-07-30

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