GB0323614D0 - Switching devices - Google Patents

Switching devices

Info

Publication number
GB0323614D0
GB0323614D0 GB0323614A GB0323614A GB0323614D0 GB 0323614 D0 GB0323614 D0 GB 0323614D0 GB 0323614 A GB0323614 A GB 0323614A GB 0323614 A GB0323614 A GB 0323614A GB 0323614 D0 GB0323614 D0 GB 0323614D0
Authority
GB
United Kingdom
Prior art keywords
switching devices
switching
devices
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.)
Withdrawn
Application number
GB0323614A
Other versions
GB2406944A (en
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Priority to GB0323614A priority Critical patent/GB2406944A/en
Publication of GB0323614D0 publication Critical patent/GB0323614D0/en
Publication of GB2406944A publication Critical patent/GB2406944A/en
Withdrawn legal-status Critical Current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
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • 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
    • H03K17/967—Switches controlled by moving an element forming part of the switch having a plurality of control members, e.g. keyboard
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)
GB0323614A 2003-10-09 2003-10-09 Keyboard switching devices Withdrawn GB2406944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0323614A GB2406944A (en) 2003-10-09 2003-10-09 Keyboard switching devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0323614A GB2406944A (en) 2003-10-09 2003-10-09 Keyboard switching devices

Publications (2)

Publication Number Publication Date
GB0323614D0 true GB0323614D0 (en) 2003-11-12
GB2406944A GB2406944A (en) 2005-04-13

Family

ID=29433543

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0323614A Withdrawn GB2406944A (en) 2003-10-09 2003-10-09 Keyboard switching devices

Country Status (1)

Country Link
GB (1) GB2406944A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7655901B2 (en) 2005-11-18 2010-02-02 Research In Motion Limited Light assisted keyboard for mobile communication device
DE602005007506D1 (en) * 2005-11-18 2008-07-24 Research In Motion Ltd Keyboard for mobile communication device
GB2459501A (en) * 2008-04-25 2009-10-28 Gary Philip Doyle Intrinsically safe mobile phone with gas alarm.
US10394341B1 (en) 2016-09-19 2019-08-27 Apple Inc. Optical keyboards

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603982A (en) * 1969-05-02 1971-09-07 Ncr Co Data entry means
GB1407406A (en) * 1971-10-09 1975-09-24 Solartron Electronic Group Keyboards
NL7800925A (en) * 1978-01-25 1979-07-27 Nedap Nv COORDINATE SWITCH.
GB1566654A (en) * 1978-05-04 1980-05-08 Standard Telephones Cables Ltd Switches
US4311990A (en) * 1978-11-16 1982-01-19 Optical Techniques International, Inc. Photo-optical keyboards
US4254407A (en) * 1979-07-18 1981-03-03 Ncr Corporation Data processing system having optically linked subsystems, including an optical keyboard
EP0104168B1 (en) * 1982-03-29 1987-08-19 International Business Machines Corporation Optical keyboard with common light transmission members
US4641026A (en) * 1984-02-02 1987-02-03 Texas Instruments Incorporated Optically activated keyboard for digital system
US4980685A (en) * 1986-02-24 1990-12-25 Alain Souloumiac Scanning optical keyboard

Also Published As

Publication number Publication date
GB2406944A (en) 2005-04-13

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)