GB1404078A - Telephone outpulser circuits - Google Patents

Telephone outpulser circuits

Info

Publication number
GB1404078A
GB1404078A GB3161273A GB3161273A GB1404078A GB 1404078 A GB1404078 A GB 1404078A GB 3161273 A GB3161273 A GB 3161273A GB 3161273 A GB3161273 A GB 3161273A GB 1404078 A GB1404078 A GB 1404078A
Authority
GB
United Kingdom
Prior art keywords
store
transistor
pulse
fet
turned
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
Application number
GB3161273A
Other languages
English (en)
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
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3161273A priority Critical patent/GB1404078A/en
Priority to ZA00742857A priority patent/ZA742857B/xx
Priority to IT24191/74A priority patent/IT1015222B/it
Priority to DE2430740A priority patent/DE2430740A1/de
Priority to BR5356/74A priority patent/BR7405356A/pt
Priority to ES427877A priority patent/ES427877A1/es
Priority to FR7422934A priority patent/FR2236322B2/fr
Priority to BE2053727A priority patent/BE817196R/xx
Priority to AR254529A priority patent/AR203751A1/es
Priority to AU69144/74A priority patent/AU483003B2/en
Publication of GB1404078A publication Critical patent/GB1404078A/en
Priority to HK288/77A priority patent/HK28877A/xx
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Electronic Switches (AREA)
GB3161273A 1973-07-03 1973-07-03 Telephone outpulser circuits Expired GB1404078A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
GB3161273A GB1404078A (en) 1973-07-03 1973-07-03 Telephone outpulser circuits
ZA00742857A ZA742857B (en) 1973-07-03 1974-05-06 Improvements in or relating to electronics switching circuits
IT24191/74A IT1015222B (it) 1973-07-03 1974-06-20 Perfezionamento nei circuiti elet tronici di commutazione
DE2430740A DE2430740A1 (de) 1973-07-03 1974-06-26 Schaltungsanordnung zur waehlimpulserzeugung in tastwahl-fernsprechapparaten
BR5356/74A BR7405356A (pt) 1973-07-03 1974-06-28 Unidade de pulsos
ES427877A ES427877A1 (es) 1973-07-03 1974-07-02 Mejoras en las unidades de emision de impulsos.
FR7422934A FR2236322B2 (es) 1973-07-03 1974-07-02
BE2053727A BE817196R (fr) 1973-07-03 1974-07-03 Circuit de numerotation pour appareil d'abonne telephonique
AR254529A AR203751A1 (es) 1973-07-03 1974-07-04 Unidad emisora de pulsos para un aparato de abonados telefonicos
AU69144/74A AU483003B2 (en) 1973-07-03 1975-05-20 Improvements in or relating to electronic switching circuits
HK288/77A HK28877A (en) 1973-07-03 1977-06-09 Improvements in or relating to telephone outpulser circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3161273A GB1404078A (en) 1973-07-03 1973-07-03 Telephone outpulser circuits

Publications (1)

Publication Number Publication Date
GB1404078A true GB1404078A (en) 1975-08-28

Family

ID=10325756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3161273A Expired GB1404078A (en) 1973-07-03 1973-07-03 Telephone outpulser circuits

Country Status (10)

Country Link
AR (1) AR203751A1 (es)
BE (1) BE817196R (es)
BR (1) BR7405356A (es)
DE (1) DE2430740A1 (es)
ES (1) ES427877A1 (es)
FR (1) FR2236322B2 (es)
GB (1) GB1404078A (es)
HK (1) HK28877A (es)
IT (1) IT1015222B (es)
ZA (1) ZA742857B (es)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488450A (en) * 1966-12-02 1970-01-06 American Telephone & Telegraph Sender for transmitting trains of pulses

Also Published As

Publication number Publication date
ES427877A1 (es) 1976-11-16
FR2236322B2 (es) 1978-11-24
IT1015222B (it) 1977-05-10
BR7405356A (pt) 1976-08-31
AU6914474A (en) 1975-11-20
HK28877A (en) 1977-06-17
BE817196R (fr) 1975-01-03
FR2236322A2 (es) 1975-01-31
AR203751A1 (es) 1975-10-15
ZA742857B (en) 1975-03-26
DE2430740A1 (de) 1975-01-23

Similar Documents

Publication Publication Date Title
GB1395577A (en) Telephones
GB1509446A (en) Charge transfer signal processing
SE7500362L (sv) Elektronisk nummerpulsgivare for telefonapparat.
GB1404078A (en) Telephone outpulser circuits
GB806869A (en) Pulse coding system
GB1086702A (en) Electrical calling circuits
US4032722A (en) Telephone dialing arrangement for calling a single party
GB1222493A (en) Data transmission system
GB1523370A (en) Dialling devices
SE7413472L (es)
GB1333757A (en) Dialling-pulse source for telecommunications systems
GB1347929A (en) Telephone subscribers instruments
GB1486010A (en) Multiplex transmission system
GB1398860A (en) Operating circuit of a telephone set
GB899267A (en) Circuit arrangement for a device for the evaluation of electric voltages
SU125688A1 (ru) Автоматическа телеизмерительна метеорологическа станци
GB1166438A (en) Repertory Dialer
GB1182234A (en) Electromagnetic Stepping Circuit.
SE195524C1 (es)
ES8102762A1 (es) Mejoras en los circuitos de llamada por pulsador para apara-tos telefonicos
GB1059606A (en) A ringer
GB1386641A (en) Semiconductor amplifying and rectifying circuit
FR2362538A1 (fr) Dispositif telephonique d'emission d'impulsions de numerotation
GB931524A (en) Switched pulse amplifier
JPS55141858A (en) Transistor switch circuit

Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee