BE802751A - Montage de commande a clavier de touches - Google Patents

Montage de commande a clavier de touches

Info

Publication number
BE802751A
BE802751A BE2052942A BE2052942A BE802751A BE 802751 A BE802751 A BE 802751A BE 2052942 A BE2052942 A BE 2052942A BE 2052942 A BE2052942 A BE 2052942A BE 802751 A BE802751 A BE 802751A
Authority
BE
Belgium
Prior art keywords
control mounting
keypad control
keypad
mounting
control
Prior art date
Application number
BE2052942A
Other languages
English (en)
Inventor
G Verbaas
Original Assignee
Gte Automatic Electric Lab 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 Gte Automatic Electric Lab Inc filed Critical Gte Automatic Electric Lab Inc
Publication of BE802751A publication Critical patent/BE802751A/fr

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
    • H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of DC signals of alternating polarity, coded pulses or impedance dialling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
    • H04M11/025—Door telephones

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
BE2052942A 1972-07-25 1973-07-25 Montage de commande a clavier de touches BE802751A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27502372A 1972-07-25 1972-07-25

Publications (1)

Publication Number Publication Date
BE802751A true BE802751A (fr) 1974-01-25

Family

ID=23050589

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2052942A BE802751A (fr) 1972-07-25 1973-07-25 Montage de commande a clavier de touches

Country Status (6)

Country Link
US (1) US3786496A (fr)
BE (1) BE802751A (fr)
CA (1) CA1001272A (fr)
DE (1) DE2336859A1 (fr)
GB (1) GB1423687A (fr)
IT (1) IT993607B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008379A (en) * 1975-02-14 1977-02-15 San/Bar Corporation Touch-pad to dial conversion unit
AU4640185A (en) * 1984-08-28 1986-03-06 Rowe International, Inc. Control circuit for multi-unit dispensing
US6828902B2 (en) * 1998-12-14 2004-12-07 Soundcraft, Inc. Wireless data input to RFID reader

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665336A (en) * 1950-08-08 1954-01-05 Joseph J Saykay Electrical keyboard
US3457368A (en) * 1965-11-15 1969-07-22 Bell Telephone Labor Inc Code character keyboard sender
FR1569618A (fr) * 1967-12-08 1969-06-06
US3676615A (en) * 1970-07-13 1972-07-11 Ibm Pushbutton keyboard switch array and associated printed circuit logic cards

Also Published As

Publication number Publication date
GB1423687A (en) 1976-02-04
CA1001272A (en) 1976-12-07
DE2336859A1 (de) 1974-02-07
US3786496A (en) 1974-01-15
IT993607B (it) 1975-09-30

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GTE AUTOMATIC ELECTRIC LABORATORIES INC.

Effective date: 19870731