SE385986B - KEYBOARD WITH "ROLLS" - Google Patents

KEYBOARD WITH "ROLLS"

Info

Publication number
SE385986B
SE385986B SE7214763A SE1476372A SE385986B SE 385986 B SE385986 B SE 385986B SE 7214763 A SE7214763 A SE 7214763A SE 1476372 A SE1476372 A SE 1476372A SE 385986 B SE385986 B SE 385986B
Authority
SE
Sweden
Prior art keywords
rolls
keyboard
Prior art date
Application number
SE7214763A
Other languages
Swedish (sv)
Inventor
J H M Scholten
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of SE385986B publication Critical patent/SE385986B/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/003—Phantom keys detection and prevention

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Electronic Switches (AREA)
SE7214763A 1971-11-17 1972-11-14 KEYBOARD WITH "ROLLS" SE385986B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7115804,A NL170895C (en) 1971-11-17 1971-11-17 KEYBOARD WITH CYCLIC QUESTIONER.

Publications (1)

Publication Number Publication Date
SE385986B true SE385986B (en) 1976-07-26

Family

ID=19814496

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7214763A SE385986B (en) 1971-11-17 1972-11-14 KEYBOARD WITH "ROLLS"

Country Status (10)

Country Link
US (1) US3778818A (en)
JP (1) JPS538455B2 (en)
BE (1) BE791475A (en)
CA (1) CA973805A (en)
DE (1) DE2255372C3 (en)
FR (1) FR2161660A5 (en)
GB (1) GB1410811A (en)
IT (1) IT973544B (en)
NL (1) NL170895C (en)
SE (1) SE385986B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096935A (en) * 1974-02-22 1978-06-27 Canon Kabushiki Kaisha Input device
JPS5535679U (en) * 1978-08-31 1980-03-07
FR2447089A1 (en) * 1979-01-17 1980-08-14 Serras Paulet Edouard KEY CONTROL KEYBOARD AND MECHANICAL SWITCHES
FR2449388A1 (en) * 1979-02-13 1980-09-12 Cii Honeywell Bull Entry system for coded data into data processing system - employs electronic keyboard containing memory and coding cells, which are clocked by pulse generator
EP0095023A3 (en) * 1982-05-20 1985-04-10 International Business Machines Corporation Contact keyboard with finger controlled n-key rollover
US4500169A (en) * 1982-07-13 1985-02-19 Donnelly John H Cosmetic and observer line of sight mirror

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5035372B1 (en) * 1970-03-26 1975-11-15

Also Published As

Publication number Publication date
NL170895C (en) 1983-01-03
JPS538455B2 (en) 1978-03-29
FR2161660A5 (en) 1973-07-06
US3778818A (en) 1973-12-11
DE2255372B2 (en) 1977-10-13
NL7115804A (en) 1973-05-21
IT973544B (en) 1974-06-10
BE791475A (en) 1973-05-16
NL170895B (en) 1982-08-02
CA973805A (en) 1975-09-02
GB1410811A (en) 1975-10-22
DE2255372C3 (en) 1978-06-08
JPS4858922A (en) 1973-08-18
DE2255372A1 (en) 1973-05-24

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