ES427877A1 - Mejoras en las unidades de emision de impulsos. - Google Patents

Mejoras en las unidades de emision de impulsos.

Info

Publication number
ES427877A1
ES427877A1 ES427877A ES427877A ES427877A1 ES 427877 A1 ES427877 A1 ES 427877A1 ES 427877 A ES427877 A ES 427877A ES 427877 A ES427877 A ES 427877A ES 427877 A1 ES427877 A1 ES 427877A1
Authority
ES
Spain
Prior art keywords
digits
pulse
transistor
storage
subscriber
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
ES427877A
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES427877A1 publication Critical patent/ES427877A1/es
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)
ES427877A 1973-07-03 1974-07-02 Mejoras en las unidades de emision de impulsos. Expired ES427877A1 (es)

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
ES427877A1 true ES427877A1 (es) 1976-11-16

Family

ID=10325756

Family Applications (1)

Application Number Title Priority Date Filing Date
ES427877A Expired ES427877A1 (es) 1973-07-03 1974-07-02 Mejoras en las unidades de emision de impulsos.

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
BR7405356A (pt) 1976-08-31
HK28877A (en) 1977-06-17
FR2236322B2 (es) 1978-11-24
AR203751A1 (es) 1975-10-15
BE817196R (fr) 1975-01-03
AU6914474A (en) 1975-11-20
ZA742857B (en) 1975-03-26
GB1404078A (en) 1975-08-28
FR2236322A2 (es) 1975-01-31
IT1015222B (it) 1977-05-10
DE2430740A1 (de) 1975-01-23

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