FR2232972A5 - Alpha numeric electronic keyboard for data entry - with simple reliable coding system - Google Patents

Alpha numeric electronic keyboard for data entry - with simple reliable coding system

Info

Publication number
FR2232972A5
FR2232972A5 FR7320786A FR7320786A FR2232972A5 FR 2232972 A5 FR2232972 A5 FR 2232972A5 FR 7320786 A FR7320786 A FR 7320786A FR 7320786 A FR7320786 A FR 7320786A FR 2232972 A5 FR2232972 A5 FR 2232972A5
Authority
FR
France
Prior art keywords
alpha numeric
data entry
coding system
electronic keyboard
array
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
FR7320786A
Other languages
French (fr)
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.)
Bull SA
Original Assignee
Societe Industrielle Honeywell Bull
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 Societe Industrielle Honeywell Bull filed Critical Societe Industrielle Honeywell Bull
Priority to FR7320786A priority Critical patent/FR2232972A5/en
Application granted granted Critical
Publication of FR2232972A5 publication Critical patent/FR2232972A5/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03M11/22—Static coding
    • 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
    • H03M11/02—Details
    • H03M11/04—Coding of multifunction keys
    • H03M11/14—Coding of multifunction keys by using additional keys, e.g. shift keys, which determine the function performed by the multifunction key
    • H03M11/18—Coding of multifunction keys by using additional keys, e.g. shift keys, which determine the function performed by the multifunction key wherein the shift keys are operated before the operation of the multifunction keys

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

An array of push keys forming a keyboard for entry or transmission of data consists typically of 128 alpha numeric and control characters in one of the international codes. Each key has an associated circuit which generates two pulses and by organising keys into a suitable matrix array and routening a pulse to each row and group of this array, logic encoding identifies the key depressed. Subsequent translation by means of a read only memory allows any required code format to be generated.
FR7320786A 1973-06-07 1973-06-07 Alpha numeric electronic keyboard for data entry - with simple reliable coding system Expired FR2232972A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7320786A FR2232972A5 (en) 1973-06-07 1973-06-07 Alpha numeric electronic keyboard for data entry - with simple reliable coding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7320786A FR2232972A5 (en) 1973-06-07 1973-06-07 Alpha numeric electronic keyboard for data entry - with simple reliable coding system

Publications (1)

Publication Number Publication Date
FR2232972A5 true FR2232972A5 (en) 1975-01-03

Family

ID=9120659

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7320786A Expired FR2232972A5 (en) 1973-06-07 1973-06-07 Alpha numeric electronic keyboard for data entry - with simple reliable coding system

Country Status (1)

Country Link
FR (1) FR2232972A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319936A1 (en) * 1975-07-29 1977-02-25 Xerox Corp LANGUAGE TRANSLATION APPARATUS AND METHOD
EP0361533A2 (en) * 1989-10-20 1990-04-04 Thomas Dr. Kaiser A data processing system input device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319936A1 (en) * 1975-07-29 1977-02-25 Xerox Corp LANGUAGE TRANSLATION APPARATUS AND METHOD
EP0361533A2 (en) * 1989-10-20 1990-04-04 Thomas Dr. Kaiser A data processing system input device
EP0361533A3 (en) * 1989-10-20 1990-09-05 Thomas Dr. Kaiser A data processing system input device
WO1991006154A1 (en) * 1989-10-20 1991-05-02 Thomas Kaiser A data processing system input device

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Legal Events

Date Code Title Description
ST Notification of lapse