GB1486988A - Touch pad position resolvers - Google Patents

Touch pad position resolvers

Info

Publication number
GB1486988A
GB1486988A GB15376/75A GB1537675A GB1486988A GB 1486988 A GB1486988 A GB 1486988A GB 15376/75 A GB15376/75 A GB 15376/75A GB 1537675 A GB1537675 A GB 1537675A GB 1486988 A GB1486988 A GB 1486988A
Authority
GB
United Kingdom
Prior art keywords
conductors
amplifiers
touch pad
pad position
pairs
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
GB15376/75A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB15376/75A priority Critical patent/GB1486988A/en
Publication of GB1486988A publication Critical patent/GB1486988A/en
Expired 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

1486988 Touch responsive switches MARCONI CO Ltd 27 Feb 1976 [15 April 1975] 15376/75 Heading G1N [Also in Division G4] A touch pad position resolver arrangement comprises a sheet of electrically polarized transparent plastics material having a first array of pairs of conductors 2A, 2B on one face in crossing relationship with a second array of pairs of conductors 3A, 3B on its opposite face. The conductors feed differential amplifiers 5, 7 as shown in the drawing. When a cross-point is pressed, a signal is obtained from one of amplifiers 5 and one of amplifiers 7. The arrangement can be overlaid on displays such as maps, indicating panels and CRTs.
GB15376/75A 1976-02-27 1976-02-27 Touch pad position resolvers Expired GB1486988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB15376/75A GB1486988A (en) 1976-02-27 1976-02-27 Touch pad position resolvers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15376/75A GB1486988A (en) 1976-02-27 1976-02-27 Touch pad position resolvers

Publications (1)

Publication Number Publication Date
GB1486988A true GB1486988A (en) 1977-09-28

Family

ID=10058078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15376/75A Expired GB1486988A (en) 1976-02-27 1976-02-27 Touch pad position resolvers

Country Status (1)

Country Link
GB (1) GB1486988A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472779A1 (en) * 1979-12-27 1981-07-03 Kureha Chemical Ind Co Ltd KEYBOARD DATA INTRODUCTION DEVICE
US4549093A (en) * 1982-09-29 1985-10-22 Emi Limited Tactile array sensor
GB2168816A (en) * 1984-12-19 1986-06-25 Philips Electronic Associated Touch-sensitive position sensor apparatus
GB2182179A (en) * 1985-10-24 1987-05-07 Wah Shing Whole-character keyboard
WO2008007372A2 (en) * 2006-07-12 2008-01-17 N-Trig Ltd. Hover and touch detection for a digitizer
US8059102B2 (en) 2006-06-13 2011-11-15 N-Trig Ltd. Fingertip touch recognition for a digitizer
US8125463B2 (en) 2004-05-06 2012-02-28 Apple Inc. Multipoint touchscreen
US8432371B2 (en) 2006-06-09 2013-04-30 Apple Inc. Touch screen liquid crystal display
US8493330B2 (en) 2007-01-03 2013-07-23 Apple Inc. Individual channel phase delay scheme
US8552989B2 (en) 2006-06-09 2013-10-08 Apple Inc. Integrated display and touch screen
US8654083B2 (en) 2006-06-09 2014-02-18 Apple Inc. Touch screen liquid crystal display
US8686964B2 (en) 2006-07-13 2014-04-01 N-Trig Ltd. User specific recognition of intended user interaction with a digitizer
US8743300B2 (en) 2010-12-22 2014-06-03 Apple Inc. Integrated touch screens
US9710095B2 (en) 2007-01-05 2017-07-18 Apple Inc. Touch screen stack-ups

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472779A1 (en) * 1979-12-27 1981-07-03 Kureha Chemical Ind Co Ltd KEYBOARD DATA INTRODUCTION DEVICE
US4549093A (en) * 1982-09-29 1985-10-22 Emi Limited Tactile array sensor
GB2168816A (en) * 1984-12-19 1986-06-25 Philips Electronic Associated Touch-sensitive position sensor apparatus
GB2182179A (en) * 1985-10-24 1987-05-07 Wah Shing Whole-character keyboard
US10331259B2 (en) 2004-05-06 2019-06-25 Apple Inc. Multipoint touchscreen
US10908729B2 (en) 2004-05-06 2021-02-02 Apple Inc. Multipoint touchscreen
US8872785B2 (en) 2004-05-06 2014-10-28 Apple Inc. Multipoint touchscreen
US8125463B2 (en) 2004-05-06 2012-02-28 Apple Inc. Multipoint touchscreen
US8416209B2 (en) 2004-05-06 2013-04-09 Apple Inc. Multipoint touchscreen
US9454277B2 (en) 2004-05-06 2016-09-27 Apple Inc. Multipoint touchscreen
US11604547B2 (en) 2004-05-06 2023-03-14 Apple Inc. Multipoint touchscreen
US9035907B2 (en) 2004-05-06 2015-05-19 Apple Inc. Multipoint touchscreen
US8982087B2 (en) 2004-05-06 2015-03-17 Apple Inc. Multipoint touchscreen
US8605051B2 (en) 2004-05-06 2013-12-10 Apple Inc. Multipoint touchscreen
US8928618B2 (en) 2004-05-06 2015-01-06 Apple Inc. Multipoint touchscreen
US8451244B2 (en) 2006-06-09 2013-05-28 Apple Inc. Segmented Vcom
US8432371B2 (en) 2006-06-09 2013-04-30 Apple Inc. Touch screen liquid crystal display
US11886651B2 (en) 2006-06-09 2024-01-30 Apple Inc. Touch screen liquid crystal display
US11175762B2 (en) 2006-06-09 2021-11-16 Apple Inc. Touch screen liquid crystal display
US8654083B2 (en) 2006-06-09 2014-02-18 Apple Inc. Touch screen liquid crystal display
US8552989B2 (en) 2006-06-09 2013-10-08 Apple Inc. Integrated display and touch screen
US10976846B2 (en) 2006-06-09 2021-04-13 Apple Inc. Touch screen liquid crystal display
US10191576B2 (en) 2006-06-09 2019-01-29 Apple Inc. Touch screen liquid crystal display
US9575610B2 (en) 2006-06-09 2017-02-21 Apple Inc. Touch screen liquid crystal display
US9244561B2 (en) 2006-06-09 2016-01-26 Apple Inc. Touch screen liquid crystal display
US9268429B2 (en) 2006-06-09 2016-02-23 Apple Inc. Integrated display and touch screen
US8059102B2 (en) 2006-06-13 2011-11-15 N-Trig Ltd. Fingertip touch recognition for a digitizer
US9535598B2 (en) 2006-07-12 2017-01-03 Microsoft Technology Licensing, Llc Hover and touch detection for a digitizer
US9069417B2 (en) 2006-07-12 2015-06-30 N-Trig Ltd. Hover and touch detection for digitizer
WO2008007372A2 (en) * 2006-07-12 2008-01-17 N-Trig Ltd. Hover and touch detection for a digitizer
WO2008007372A3 (en) * 2006-07-12 2008-07-10 N trig ltd Hover and touch detection for a digitizer
US10031621B2 (en) 2006-07-12 2018-07-24 Microsoft Technology Licensing, Llc Hover and touch detection for a digitizer
US8686964B2 (en) 2006-07-13 2014-04-01 N-Trig Ltd. User specific recognition of intended user interaction with a digitizer
US8493330B2 (en) 2007-01-03 2013-07-23 Apple Inc. Individual channel phase delay scheme
US10521065B2 (en) 2007-01-05 2019-12-31 Apple Inc. Touch screen stack-ups
US9710095B2 (en) 2007-01-05 2017-07-18 Apple Inc. Touch screen stack-ups
US8743300B2 (en) 2010-12-22 2014-06-03 Apple Inc. Integrated touch screens
US10409434B2 (en) 2010-12-22 2019-09-10 Apple Inc. Integrated touch screens
US9727193B2 (en) 2010-12-22 2017-08-08 Apple Inc. Integrated touch screens
US9025090B2 (en) 2010-12-22 2015-05-05 Apple Inc. Integrated touch screens
US9146414B2 (en) 2010-12-22 2015-09-29 Apple Inc. Integrated touch screens
US8804056B2 (en) 2010-12-22 2014-08-12 Apple Inc. Integrated touch screens

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee