IT970253B - Tastiera codificatrice - Google Patents

Tastiera codificatrice

Info

Publication number
IT970253B
IT970253B IT31380/72A IT3138072A IT970253B IT 970253 B IT970253 B IT 970253B IT 31380/72 A IT31380/72 A IT 31380/72A IT 3138072 A IT3138072 A IT 3138072A IT 970253 B IT970253 B IT 970253B
Authority
IT
Italy
Prior art keywords
keypad
coding
keypad coding
Prior art date
Application number
IT31380/72A
Other languages
English (en)
Inventor
Glay
Original Assignee
Sagem
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 Sagem filed Critical Sagem
Application granted granted Critical
Publication of IT970253B publication Critical patent/IT970253B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/16—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of transmitters, e.g. code-bars, code-discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
IT31380/72A 1971-12-30 1972-11-08 Tastiera codificatrice IT970253B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7147578A FR2166587A5 (it) 1971-12-30 1971-12-30

Publications (1)

Publication Number Publication Date
IT970253B true IT970253B (it) 1974-04-10

Family

ID=9088398

Family Applications (1)

Application Number Title Priority Date Filing Date
IT31380/72A IT970253B (it) 1971-12-30 1972-11-08 Tastiera codificatrice

Country Status (9)

Country Link
US (1) US3828910A (it)
BR (1) BR7207850D0 (it)
DD (1) DD104754A5 (it)
DE (1) DE2253866A1 (it)
ES (1) ES408145A1 (it)
FR (1) FR2166587A5 (it)
GB (1) GB1417845A (it)
IT (1) IT970253B (it)
NL (1) NL7214969A (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067431A (en) * 1976-03-12 1978-01-10 Whitaker Ranald O Combinational keyboard with movable keys and adapted for one-handed keying of numerical information
US4331945A (en) * 1980-09-23 1982-05-25 Cattani Ii Cyrus J Magnetically actuatable tamper switch assembly
FR2508228A1 (fr) * 1981-06-19 1982-12-24 Thomson Csf Mat Tel Procede de fabrication d'un clavier de commande, et clavier de commande obtenu par ce procede

Also Published As

Publication number Publication date
DE2253866A1 (de) 1973-07-12
FR2166587A5 (it) 1973-08-17
GB1417845A (en) 1975-12-17
BR7207850D0 (pt) 1973-09-13
NL7214969A (it) 1973-07-03
DD104754A5 (it) 1974-03-20
US3828910A (en) 1974-08-13
ES408145A1 (es) 1975-11-16

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