GB1386212A - Integrated circuit for push button pulse dialing - Google Patents

Integrated circuit for push button pulse dialing

Info

Publication number
GB1386212A
GB1386212A GB55873A GB55873A GB1386212A GB 1386212 A GB1386212 A GB 1386212A GB 55873 A GB55873 A GB 55873A GB 55873 A GB55873 A GB 55873A GB 1386212 A GB1386212 A GB 1386212A
Authority
GB
United Kingdom
Prior art keywords
digit
shift registers
static
register
push button
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
GB55873A
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries Inc
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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of GB1386212A publication Critical patent/GB1386212A/en
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)
  • Mobile Radio Communication Systems (AREA)
  • Electrotherapy Devices (AREA)
  • Devices For Supply Of Signal Current (AREA)
GB55873A 1972-01-21 1973-01-04 Integrated circuit for push button pulse dialing Expired GB1386212A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722202850 DE2202850C2 (de) 1972-01-21 1972-01-21 Integrierte Schaltungsanordnung für die Tastenwahl von Rufnummern

Publications (1)

Publication Number Publication Date
GB1386212A true GB1386212A (en) 1975-03-05

Family

ID=5833641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55873A Expired GB1386212A (en) 1972-01-21 1973-01-04 Integrated circuit for push button pulse dialing

Country Status (9)

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

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 (fr) * 1975-07-23 1977-02-18 Bailleul Roland Circuits electroniques et electromagnetiques permettant l'adaptation d'un clavier numerique a un poste telephonique a cadran d'appel par quatre fils

Family Cites Families (1)

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

Also Published As

Publication number Publication date
FR2168473B1 (xx) 1976-05-14
IT978267B (it) 1974-09-20
DE2202850B1 (de) 1973-07-12
JPS4884509A (xx) 1973-11-09
CH553521A (de) 1974-08-30
FR2168473A1 (xx) 1973-08-31
DE2202850C2 (de) 1979-03-15
BE794179A (nl) 1973-07-18
DE2202850A1 (xx) 1973-07-12
ES410848A1 (es) 1975-12-16
NL7300583A (xx) 1973-07-24

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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