FR2386074A1 - Keyboard type light beam transmitter - uses orthogonal network beams which may be interrupted at crosspoints to produce data - Google Patents

Keyboard type light beam transmitter - uses orthogonal network beams which may be interrupted at crosspoints to produce data

Info

Publication number
FR2386074A1
FR2386074A1 FR7709292A FR7709292A FR2386074A1 FR 2386074 A1 FR2386074 A1 FR 2386074A1 FR 7709292 A FR7709292 A FR 7709292A FR 7709292 A FR7709292 A FR 7709292A FR 2386074 A1 FR2386074 A1 FR 2386074A1
Authority
FR
France
Prior art keywords
interrupted
keyboard
crosspoints
light beam
data
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.)
Granted
Application number
FR7709292A
Other languages
French (fr)
Other versions
FR2386074B1 (en
Inventor
Bernard Lavigne
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7709292A priority Critical patent/FR2386074A1/en
Publication of FR2386074A1 publication Critical patent/FR2386074A1/en
Application granted granted Critical
Publication of FR2386074B1 publication Critical patent/FR2386074B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards

Abstract

The keyboard is of the order transmitting type for use in a data system to establish communication between an operator and a computer. The keyboard transmitter has a plane of two orthogonal networks of luminous beams which cross each other at points where gaps are created. The beams can also by interrupted by insertion of some material. The system creates data which is characteristic of the erasing point considered, this data being transmitted to the computer. The keyboard transmitter has a chassis (12) and a printed circuit (11) carrying at least two orthogonal infra red emitters and receiver networks (1). It has a key plaque (4) made from a translucid material in which there are key cutouts (5). A thin panel (7) has indications on it of the keys functions. The plaque (4) has channels (6) cut in it of open circular section which are used as light guides between the corresponding emitter (1) and receiver (2) elements.
FR7709292A 1977-03-29 1977-03-29 Keyboard type light beam transmitter - uses orthogonal network beams which may be interrupted at crosspoints to produce data Granted FR2386074A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7709292A FR2386074A1 (en) 1977-03-29 1977-03-29 Keyboard type light beam transmitter - uses orthogonal network beams which may be interrupted at crosspoints to produce data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7709292A FR2386074A1 (en) 1977-03-29 1977-03-29 Keyboard type light beam transmitter - uses orthogonal network beams which may be interrupted at crosspoints to produce data

Publications (2)

Publication Number Publication Date
FR2386074A1 true FR2386074A1 (en) 1978-10-27
FR2386074B1 FR2386074B1 (en) 1980-01-11

Family

ID=9188690

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7709292A Granted FR2386074A1 (en) 1977-03-29 1977-03-29 Keyboard type light beam transmitter - uses orthogonal network beams which may be interrupted at crosspoints to produce data

Country Status (1)

Country Link
FR (1) FR2386074A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576433A1 (en) * 1985-01-24 1986-07-25 Souloumiac Alain Optical keyboard for a computer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576433A1 (en) * 1985-01-24 1986-07-25 Souloumiac Alain Optical keyboard for a computer

Also Published As

Publication number Publication date
FR2386074B1 (en) 1980-01-11

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Legal Events

Date Code Title Description
ST Notification of lapse