IT978267B - INTEGRATED CIRCUIT FOR SENDING PULSES WITH BUTTONS - Google Patents

INTEGRATED CIRCUIT FOR SENDING PULSES WITH BUTTONS

Info

Publication number
IT978267B
IT978267B IT1935373A IT1935373A IT978267B IT 978267 B IT978267 B IT 978267B IT 1935373 A IT1935373 A IT 1935373A IT 1935373 A IT1935373 A IT 1935373A IT 978267 B IT978267 B IT 978267B
Authority
IT
Italy
Prior art keywords
buttons
integrated circuit
sending pulses
pulses
sending
Prior art date
Application number
IT1935373A
Other languages
Italian (it)
Original Assignee
Itt
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 Itt filed Critical Itt
Application granted granted Critical
Publication of IT978267B publication Critical patent/IT978267B/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
    • 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)
  • Mobile Radio Communication Systems (AREA)
  • Electrotherapy Devices (AREA)
  • Devices For Supply Of Signal Current (AREA)
IT1935373A 1972-01-21 1973-01-19 INTEGRATED CIRCUIT FOR SENDING PULSES WITH BUTTONS IT978267B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722202850 DE2202850C2 (en) 1972-01-21 1972-01-21 Integrated circuit arrangement for dialing phone numbers

Publications (1)

Publication Number Publication Date
IT978267B true IT978267B (en) 1974-09-20

Family

ID=5833641

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1935373A IT978267B (en) 1972-01-21 1973-01-19 INTEGRATED CIRCUIT FOR SENDING PULSES WITH BUTTONS

Country Status (9)

Country Link
JP (1) JPS4884509A (en)
BE (1) BE794179A (en)
CH (1) CH553521A (en)
DE (1) DE2202850C2 (en)
ES (1) ES410848A1 (en)
FR (1) FR2168473B1 (en)
GB (1) GB1386212A (en)
IT (1) IT978267B (en)
NL (1) NL7300583A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1394148A (en) * 1972-09-11 1975-05-14 Int Standard Electric Corp Push-button telphone subset
FR2319256A1 (en) * 1975-07-23 1977-02-18 Bailleul Roland French telephone network line keyboard adaptor - has circuits to suppress listening control during numbering

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2114075A5 (en) * 1970-11-16 1972-06-30 Cit Alcatel

Also Published As

Publication number Publication date
DE2202850C2 (en) 1979-03-15
FR2168473B1 (en) 1976-05-14
GB1386212A (en) 1975-03-05
BE794179A (en) 1973-07-18
NL7300583A (en) 1973-07-24
CH553521A (en) 1974-08-30
FR2168473A1 (en) 1973-08-31
DE2202850A1 (en) 1973-07-12
DE2202850B1 (en) 1973-07-12
JPS4884509A (en) 1973-11-09
ES410848A1 (en) 1975-12-16

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