CH609512A5 - Ringing current generating arrangement in a subscriber telephone station of a local battery telephone system - Google Patents

Ringing current generating arrangement in a subscriber telephone station of a local battery telephone system

Info

Publication number
CH609512A5
CH609512A5 CH806276A CH806276A CH609512A5 CH 609512 A5 CH609512 A5 CH 609512A5 CH 806276 A CH806276 A CH 806276A CH 806276 A CH806276 A CH 806276A CH 609512 A5 CH609512 A5 CH 609512A5
Authority
CH
Switzerland
Prior art keywords
current generating
ringing current
local battery
generating arrangement
telephone system
Prior art date
Application number
CH806276A
Inventor
Werner Meyer-Graap
Original Assignee
Zellweger Uster Ag
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 Zellweger Uster Ag filed Critical Zellweger Uster Ag
Priority to CH806276A priority Critical patent/CH609512A5/en
Priority to DE2720282A priority patent/DE2720282B2/en
Priority to IT49600/77A priority patent/IT1084281B/en
Priority to IL52215A priority patent/IL52215A/en
Priority to IN899/CAL/77A priority patent/IN147715B/en
Priority to AT439777A priority patent/AT353328B/en
Publication of CH609512A5 publication Critical patent/CH609512A5/en

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
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
CH806276A 1976-06-24 1976-06-24 Ringing current generating arrangement in a subscriber telephone station of a local battery telephone system CH609512A5 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH806276A CH609512A5 (en) 1976-06-24 1976-06-24 Ringing current generating arrangement in a subscriber telephone station of a local battery telephone system
DE2720282A DE2720282B2 (en) 1976-06-24 1977-05-05 Ringing current generation arrangement at a subscriber station
IT49600/77A IT1084281B (en) 1976-06-24 1977-05-27 DEVICE FOR THE GENERATION OF THE CALL CURRENT IN A USER'S TELEPHONE
IL52215A IL52215A (en) 1976-06-24 1977-06-01 Ringing current generator arrangement in a subscriber's telephone station
IN899/CAL/77A IN147715B (en) 1976-06-24 1977-06-15
AT439777A AT353328B (en) 1976-06-24 1977-06-22 CRANK INDUCTOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH806276A CH609512A5 (en) 1976-06-24 1976-06-24 Ringing current generating arrangement in a subscriber telephone station of a local battery telephone system

Publications (1)

Publication Number Publication Date
CH609512A5 true CH609512A5 (en) 1979-02-28

Family

ID=4334560

Family Applications (1)

Application Number Title Priority Date Filing Date
CH806276A CH609512A5 (en) 1976-06-24 1976-06-24 Ringing current generating arrangement in a subscriber telephone station of a local battery telephone system

Country Status (6)

Country Link
AT (1) AT353328B (en)
CH (1) CH609512A5 (en)
DE (1) DE2720282B2 (en)
IL (1) IL52215A (en)
IN (1) IN147715B (en)
IT (1) IT1084281B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035776A1 (en) * 1980-09-23 1982-06-03 Robert Bosch Gmbh, 7000 Stuttgart Electric machine with external rotor - has permanent magnet in rotor shroud, including rotor bottom, with rotor assembly mounted in bearing shield

Also Published As

Publication number Publication date
AT353328B (en) 1979-11-12
DE2720282B2 (en) 1978-08-10
DE2720282C3 (en) 1979-04-05
ATA439777A (en) 1979-04-15
DE2720282A1 (en) 1977-12-29
IL52215A0 (en) 1977-08-31
IL52215A (en) 1979-09-30
IT1084281B (en) 1985-05-25
IN147715B (en) 1980-06-14

Similar Documents

Publication Publication Date Title
GB1543015A (en) Method of and system for eliminating the side tone of a telephone station
JPS5354402A (en) Circuit for setting subscriber*s key telephone set
HK9283A (en) Digital tone generator for telephone dialling
JPS5386507A (en) Telephone subscriber constant current supplying circuit
JPS5382203A (en) Telephone speech circuit network
JPS5385105A (en) Telephone and data network for mobile subscriber
GB2002993A (en) Coin telephone station arrangement and system
GB1548546A (en) Ringing signal generator arrangement for use in a telephone subscriber's connecting circuit
JPS5269510A (en) Telephone ringing generator
YU39800B (en) Arrangement ensuring the phase synchronism of a transit telephone exchange in a digital telecommunication network
GB1540553A (en) Subscriber's telephone line equipment
GB1546046A (en) Transmitting and receiving circuit for subscriber telephone sets
JPS5316507A (en) Public telephone set
JPS5372506A (en) Electric circuit network used in subscriber loop
CA1004784A (en) Ringer power generator circuit for subscriber carrier station terminal
CH609512A5 (en) Ringing current generating arrangement in a subscriber telephone station of a local battery telephone system
GB2014823A (en) Telephone handset
ZA777704B (en) Improvements in telephone equipment
HK5980A (en) Improvements in subscriber's telephone line equipment
JPS5332605A (en) Telephone line circuit
JPS5693462A (en) Active voice circuit network for telephone set
IL53543A (en) D.c.ringing current arrangement for telephone substations
EP0004901A3 (en) Circuit for subscriber stations with selecting means and current supply over the lines in telecommunication systems, especially telephone systems
ZA774382B (en) A line power supply circuit for telephone subscriber equipment
GB2063017B (en) Telephone system subscriber battery charging

Legal Events

Date Code Title Description
PL Patent ceased