GB1306480A - Data entry means - Google Patents

Data entry means

Info

Publication number
GB1306480A
GB1306480A GB3591371A GB3591371A GB1306480A GB 1306480 A GB1306480 A GB 1306480A GB 3591371 A GB3591371 A GB 3591371A GB 3591371 A GB3591371 A GB 3591371A GB 1306480 A GB1306480 A GB 1306480A
Authority
GB
United Kingdom
Prior art keywords
radiation
chambers
elements
detector
beams
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
GB3591371A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB1306480A publication Critical patent/GB1306480A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
    • H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electronic Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Optical Communication System (AREA)

Abstract

1306480 Photo-electric data entry device NATIONAL CASH REGISTER CO 30 July 1971 [6 Aug 1970] 35913/71 Heading G1A [Also in Division G4] A means e. g. a keyboard for producing an electrical signal in response to mechanically entered information comprises columns and rows of elements 12, Fig. 1, movable from a first position to a second, a housing 30 in which are provided columns and rows of chambers 21, Fig. 2, a radiation source means 17, channels 32 from the source 17 to permit the flow of radiation to the chambers, channels 34 connecting the chambers of each column to a group of detectors 19, and radiation deflecting elements 26 attached to respective elements 12 and so arranged that when an element 12 is depressed the deflecting element 26 moves into the radiation path and deflects radiation to at least one detector, the deflecting elements 26 being in the form of beam splitters so that when introduced into or beam path they permit passage of the beam to succeeding chambers in the row. A plurality of beams may be applied to each chamber from the source, and a number of elements 26 may be attached to each key base so that depression into the plurality of beams results in a coded output from a group of detectors on which the deflected beams are incident. The light beam intensity is arranged to be above the saturation level of the detector and "key depressed" and "key released" pulses obtained by differentiation are discriminated against to produce a single uniform pulse in the circuit of an actuated detector.
GB3591371A 1970-08-06 1971-07-30 Data entry means Expired GB1306480A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6164670A 1970-08-06 1970-08-06

Publications (1)

Publication Number Publication Date
GB1306480A true GB1306480A (en) 1973-02-14

Family

ID=22037157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3591371A Expired GB1306480A (en) 1970-08-06 1971-07-30 Data entry means

Country Status (4)

Country Link
US (1) US3648050A (en)
JP (1) JPS5323658B1 (en)
CA (1) CA935097A (en)
GB (1) GB1306480A (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856127A (en) * 1972-11-24 1974-12-24 U Halfon Photo-optical keyboard
US4087162A (en) * 1974-12-18 1978-05-02 General Dynamics Corporation Full power optical system with displaced beam parts
US4049964A (en) * 1976-04-01 1977-09-20 Cavitron Corporation Optical switching device
JPS5362534A (en) * 1976-11-16 1978-06-05 Canon Inc Printer
EP0004520A1 (en) * 1978-03-24 1979-10-03 International Business Machines Corporation Keyboard with an array of light beam splitters
US4291225A (en) * 1979-09-14 1981-09-22 Burroughs Corporation Molded plastic photo-optical keyboard
US4278965A (en) * 1979-09-14 1981-07-14 Burroughs Corporation Photo-optical keyboard having n-key rollover
JPS59500191A (en) * 1982-03-16 1984-02-02 バロ−ス・コ−ポレ−ション Fiber-covered keyboard and switches
US4480182A (en) * 1982-03-16 1984-10-30 Burroughs Corporation Single plane optical membrane switch and keyboard
US4480184A (en) * 1982-03-16 1984-10-30 Burroughs Corporation Molded optical waveguide switching apparatus
JPS59500637A (en) * 1982-03-29 1984-04-12 レックスマーク・インターナショナル・インコーポレーテッド optical keyboard
US4641026A (en) * 1984-02-02 1987-02-03 Texas Instruments Incorporated Optically activated keyboard for digital system
USRE33422E (en) * 1984-02-02 1990-11-06 Optically activated keyboard for digital system
EP0193556A1 (en) * 1984-09-07 1986-09-10 SOULOUMIAC, Alain Optical keyboard
WO1987002529A1 (en) * 1985-10-18 1987-04-23 Radice Peter F Pyroelectric keyboard
FR2596222B1 (en) * 1986-03-19 1992-02-07 Souloumiac Alain IMPROVEMENT OF OPTICAL KEYBOARDS
FR2597683B1 (en) * 1986-04-22 1992-07-31 Battarel Claude RADIATION INTERRUPTION KEYBOARD.
AU2304888A (en) * 1987-08-21 1989-03-09 Pennwalt Corporation Pyroelectric keyboard
AU6018494A (en) * 1993-05-21 1994-12-20 Arthur D. Little Enterprises, Inc. User-configurable control device
US5982554A (en) * 1997-12-31 1999-11-09 At&T Corp Bridging apparatus and method for an optical crossconnect device
US6181847B1 (en) 1999-05-10 2001-01-30 Ametek, Inc. Optical switch
US6741189B1 (en) * 1999-10-06 2004-05-25 Microsoft Corporation Keypad having optical waveguides
DE102013220960A1 (en) * 2013-10-16 2015-04-30 Osram Opto Semiconductors Gmbh Optoelectronic component and method for its production
US11409375B2 (en) 2016-11-11 2022-08-09 Pixart Imaging Inc. Method and apparatus for adjusting optical setting of optical input device and related optical input device
TWI742011B (en) * 2016-11-11 2021-10-11 原相科技股份有限公司 Method and apparatus for use in configuring optical input device and related optical input system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056030A (en) * 1960-08-31 1962-09-25 Burroughs Corp Light responsive photo-optical keyboard
US3519116A (en) * 1968-05-16 1970-07-07 Imagination Designs Eng & Sale Optical keyboard control means with series and parallel light circuits

Also Published As

Publication number Publication date
JPS5323658B1 (en) 1978-07-15
CA935097A (en) 1973-10-09
US3648050A (en) 1972-03-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees