CH355187A - Pulse generators, in particular number switches for telephones - Google Patents

Pulse generators, in particular number switches for telephones

Info

Publication number
CH355187A
CH355187A CH355187DA CH355187A CH 355187 A CH355187 A CH 355187A CH 355187D A CH355187D A CH 355187DA CH 355187 A CH355187 A CH 355187A
Authority
CH
Switzerland
Prior art keywords
telephones
particular number
pulse generators
number switches
switches
Prior art date
Application number
Other languages
German (de)
Inventor
Krone Gustav
Hoppe Hans
Original Assignee
Krone Kg
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 Krone Kg filed Critical Krone Kg
Publication of CH355187A publication Critical patent/CH355187A/en

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
    • 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
    • H04M1/34—Lost-motion or other arrangements for ensuring a pause between successive digit transmissions

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mechanical Operated Clutches (AREA)
CH355187D 1956-04-17 1957-04-15 Pulse generators, in particular number switches for telephones CH355187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK28617A DE1011469B (en) 1956-04-17 1956-04-17 Pulse generator, especially number switch for telephones u. Like. Which sends out series of pulses of alternating and freely selectable number of pulses through fully or semi-automatic actuation of electrical contacts

Publications (1)

Publication Number Publication Date
CH355187A true CH355187A (en) 1961-06-30

Family

ID=7218263

Family Applications (1)

Application Number Title Priority Date Filing Date
CH355187D CH355187A (en) 1956-04-17 1957-04-15 Pulse generators, in particular number switches for telephones

Country Status (4)

Country Link
BE (1) BE556738A (en)
CH (1) CH355187A (en)
DE (1) DE1011469B (en)
NL (4) NL257119A (en)

Also Published As

Publication number Publication date
NL126262C (en)
DE1011469B (en) 1957-07-04
BE556738A (en)
NL257119A (en)
NL105264C (en)
NL216292A (en)

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