GB1331942A - Electrographic tablet - Google Patents

Electrographic tablet

Info

Publication number
GB1331942A
GB1331942A GB1331942DA GB1331942A GB 1331942 A GB1331942 A GB 1331942A GB 1331942D A GB1331942D A GB 1331942DA GB 1331942 A GB1331942 A GB 1331942A
Authority
GB
United Kingdom
Prior art keywords
sheet
foraminous
upper conductive
conductive sheets
electro
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
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of GB1331942A publication Critical patent/GB1331942A/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
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

1331942 Electro-graphic tablets NATIONAL RESEARCH DEVELOPMENT CORP 10 Aug 1971 [17 June 1970] 29434/70 Heading G1N An electro-graphic tablet comprises two conductive sheets separated by a sheet of foraminous insulating material whereby point contact causes contact to be made between the conductive sheets through the holes in the foraminous sheet. As shown, a glass base 10 carries a carbon coating 11 around the edges of which are arranged spiral wire electrodes (14, 15, 16, 17, Fig.1, not shown). The foraminous sheet 33 is of 20 denier nylon mesh, and the upper conductive sheet 32 is of woven carbon or silver-coated fibre-glass. An insulating plastics sheet 34 protects the upper conductive sheet. Alternatively, both conductive sheets may comprise plastics material and carry each a set of parallel conductors on their mutually confronting faces, the sets of conductors being orthogonal. The electrodes may be energised alternately in opposite pairs, whereby X and Y co-ordinate signals are obtained alternately from the upper conductive sheet.
GB1331942D 1970-06-17 1970-06-17 Electrographic tablet Expired GB1331942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2943470 1970-06-17

Publications (1)

Publication Number Publication Date
GB1331942A true GB1331942A (en) 1973-09-26

Family

ID=10291498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1331942D Expired GB1331942A (en) 1970-06-17 1970-06-17 Electrographic tablet

Country Status (1)

Country Link
GB (1) GB1331942A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054406A1 (en) * 1980-12-15 1982-06-23 Moore Business Forms, Inc. Writing pad for a character recognition device
EP0073373A1 (en) * 1981-08-28 1983-03-09 Kabushiki Kaisha Toshiba Coordinate input device with pressure-sensitive rubber sheet
EP0074703A2 (en) * 1981-09-14 1983-03-23 Sun-Flex Company, Inc. Coordinate sensing device
US4493104A (en) * 1981-12-11 1985-01-08 Moore Business Forms, Inc. Character recognition device
EP0161895A2 (en) * 1984-05-04 1985-11-21 Raychem Limited Sensor array
FR2634579A1 (en) * 1988-07-25 1990-01-26 Mcb Potentiometer operable by a slight mechanical stress
EP0353127A1 (en) * 1988-07-25 1990-01-31 M C B Potentiometer operating with reduced mechanical force
GB2341930A (en) * 1998-09-26 2000-03-29 Electrotextiles Comp Ltd Detector constructed from fabric
US6333736B1 (en) 1999-05-20 2001-12-25 Electrotextiles Company Limited Detector constructed from fabric
US6369804B1 (en) 1998-09-26 2002-04-09 Eleksen Limited Detector constructed from fabric having non-uniform conductivity
US7365031B2 (en) 2000-04-03 2008-04-29 Intelligent Textiles Limited Conductive pressure sensitive textile
US8298968B2 (en) 2004-02-27 2012-10-30 Intelligent Textiles Limited Electrical components and circuits constructed as textiles
US10519575B2 (en) 2015-12-18 2019-12-31 Intelligent Textiles Limited Conductive fabric, method of manufacturing a conductive fabric and apparatus therefor

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054406A1 (en) * 1980-12-15 1982-06-23 Moore Business Forms, Inc. Writing pad for a character recognition device
EP0073373A1 (en) * 1981-08-28 1983-03-09 Kabushiki Kaisha Toshiba Coordinate input device with pressure-sensitive rubber sheet
US4475008A (en) * 1981-08-28 1984-10-02 Tokyo Shibaura Denki Kabushiki Kaisha Coordinate input device with pressure-sensitive rubber sheet
EP0074703A2 (en) * 1981-09-14 1983-03-23 Sun-Flex Company, Inc. Coordinate sensing device
EP0074703A3 (en) * 1981-09-14 1983-05-25 Sun-Flex Company, Inc. Coordinate sensing device
US4442317A (en) * 1981-09-14 1984-04-10 Sun-Flex Company, Inc. Coordinate sensing device
US4493104A (en) * 1981-12-11 1985-01-08 Moore Business Forms, Inc. Character recognition device
EP0161895A2 (en) * 1984-05-04 1985-11-21 Raychem Limited Sensor array
EP0161895A3 (en) * 1984-05-04 1986-12-17 Raychem Limited Sensor array
US4795998A (en) * 1984-05-04 1989-01-03 Raychem Limited Sensor array
FR2634579A1 (en) * 1988-07-25 1990-01-26 Mcb Potentiometer operable by a slight mechanical stress
EP0353127A1 (en) * 1988-07-25 1990-01-31 M C B Potentiometer operating with reduced mechanical force
GB2341930A (en) * 1998-09-26 2000-03-29 Electrotextiles Comp Ltd Detector constructed from fabric
US6369804B1 (en) 1998-09-26 2002-04-09 Eleksen Limited Detector constructed from fabric having non-uniform conductivity
GB2341930B (en) * 1998-09-26 2002-07-31 Electrotextiles Co Ltd Detector constructed from fabric
US6437258B1 (en) 1998-09-26 2002-08-20 Eleksen Limited Detector constructed from fabric having planes with differing conductance
US6492980B2 (en) 1998-09-26 2002-12-10 Eleksen Limited Multiplexing detector constructed from fabric
US6501465B2 (en) 1998-09-26 2002-12-31 Eleksen Limited Detector constructed from fabric using measured current to determine pressure
US6333736B1 (en) 1999-05-20 2001-12-25 Electrotextiles Company Limited Detector constructed from fabric
US7365031B2 (en) 2000-04-03 2008-04-29 Intelligent Textiles Limited Conductive pressure sensitive textile
US8298968B2 (en) 2004-02-27 2012-10-30 Intelligent Textiles Limited Electrical components and circuits constructed as textiles
US8669195B2 (en) 2004-02-27 2014-03-11 Intelligent Textiles Limited Electrical components and circuits constructed as textiles
US10519575B2 (en) 2015-12-18 2019-12-31 Intelligent Textiles Limited Conductive fabric, method of manufacturing a conductive fabric and apparatus therefor

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees