AU571469B2 - Switching device - Google Patents

Switching device

Info

Publication number
AU571469B2
AU571469B2 AU21775/83A AU2177583A AU571469B2 AU 571469 B2 AU571469 B2 AU 571469B2 AU 21775/83 A AU21775/83 A AU 21775/83A AU 2177583 A AU2177583 A AU 2177583A AU 571469 B2 AU571469 B2 AU 571469B2
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.)
Ceased
Application number
AU21775/83A
Other versions
AU2177583A (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
International Standard Electric 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
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
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)
  • Electronic Switches (AREA)
  • Devices For Supply Of Signal Current (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 AU2177583A (en) 1984-06-07
AU571469B2 true 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU596135B2 (en) * 1985-12-11 1990-04-26 Nec Corporation Power supply switch circuit for use in a transceiver or the like

Families Citing this family (7)

* 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
GB2187363B (en) * 1985-07-18 1989-08-02 Int Standard Electric Corp A telephone line switch
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
GB2193414B (en) * 1986-07-14 1990-01-04 Siliconix Ltd Telephone instrument
AR241359A1 (en) * 1986-09-12 1992-05-29 Siemens Ag Circuitry for the injection of registering pulses for counting the charges to calling parties
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.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036223A1 (en) * 1980-02-26 1981-09-23 Koninklijke Philips Electronics N.V. Circuit for use in a telephone set
EP0048566A1 (en) * 1980-09-23 1982-03-31 Northern Telecom Limited Telephone circuit

Family Cites Families (2)

* 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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036223A1 (en) * 1980-02-26 1981-09-23 Koninklijke Philips Electronics N.V. Circuit for use in a telephone set
EP0048566A1 (en) * 1980-09-23 1982-03-31 Northern Telecom Limited Telephone circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU596135B2 (en) * 1985-12-11 1990-04-26 Nec Corporation Power supply switch circuit for use in a transceiver or the like

Also Published As

Publication number Publication date
AU2177583A (en) 1984-06-07
NZ206346A (en) 1987-02-20
GB2132447A (en) 1984-07-04
GB2132447B (en) 1986-07-30

Similar Documents

Publication Publication Date Title
AU575036B2 (en) Connection devices
JPS57107633A (en) Solid state switching device
AU557026B2 (en) Switching system
AU563884B2 (en) Secret-speech device
AU563539B2 (en) Computer-controlled switching apparatus
AU552279B2 (en) Air switching device
GB8304476D0 (en) Switching device
AU559258B2 (en) Switching device
DE3461341D1 (en) Switching device
AU573169B1 (en) Proximity switch
AU571469B2 (en) Switching device
AU556404B2 (en) Switching system
AU570919B2 (en) Control device
AU564058B2 (en) Switching device
AU2158383A (en) Switching arrangement
GB8327925D0 (en) Switching devices
AU5017085A (en) Switching device
AU555686B2 (en) Radiogoniometric device
AU3624984A (en) Electrtical switching device
DE3376729D1 (en) Optical switching device
AU2115283A (en) Time switches
AU566227B2 (en) Switch
AU559844B2 (en) Electrical switching device
JPS57145225A (en) Switching unit
GB8415691D0 (en) Switching device