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FR2376399A1 - Tablette capacitive a une seule couche conductrice - Google Patents

Tablette capacitive a une seule couche conductrice

Info

Publication number
FR2376399A1
FR2376399A1 FR7735651A FR7735651A FR2376399A1 FR 2376399 A1 FR2376399 A1 FR 2376399A1 FR 7735651 A FR7735651 A FR 7735651A FR 7735651 A FR7735651 A FR 7735651A FR 2376399 A1 FR2376399 A1 FR 2376399A1
Authority
FR
France
Prior art keywords
equipotential
pairs
support substrate
electrodes
flat plate
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
FR7735651A
Other languages
English (en)
Other versions
FR2376399B1 (fr
Inventor
Herbert Dym
Morris Krakinowski
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to FR7735651A priority Critical patent/FR2376399A1/fr
Publication of FR2376399A1 publication Critical patent/FR2376399A1/fr
Application granted granted Critical
Publication of FR2376399B1 publication Critical patent/FR2376399B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/004—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
    • G01D5/2412—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying overlap
    • 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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Parts Printed On Printed Circuit Boards (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

Tablette capacitive à une seule couche conductrice d'électrodes pour la détermination d'un point de la surface de la tablette à l'aide d'un stylet Cette tablette comporte des paires d'électodes triangulaires telles que 14a, 14b de forme complémentaire, la base de l'électrode gauche de chaque paire étant connectée à une résistance 27 se trouant sur le bord supérieur de la tablette et la base de l'électrode droite étant connectée à une résistance 32 se trouvant sur le bord inférieur de la tablette. Les résistances 27 et 32 peuvent être reliées soit à la masse, soit à un oscillateur 42, de façon à créer des gradients de potentiels dans les électrodes pour pouvoir déterminer par couplage capacitif avec un stylet, position d'un point de la tablette. Application aux dispositifs d'affichage.
FR7735651A 1977-11-18 1977-11-18 Tablette capacitive a une seule couche conductrice Granted FR2376399A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7735651A FR2376399A1 (fr) 1977-11-18 1977-11-18 Tablette capacitive a une seule couche conductrice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7735651A FR2376399A1 (fr) 1977-11-18 1977-11-18 Tablette capacitive a une seule couche conductrice

Publications (2)

Publication Number Publication Date
FR2376399A1 true FR2376399A1 (fr) 1978-07-28
FR2376399B1 FR2376399B1 (fr) 1980-08-22

Family

ID=9198106

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7735651A Granted FR2376399A1 (fr) 1977-11-18 1977-11-18 Tablette capacitive a une seule couche conductrice

Country Status (1)

Country Link
FR (1) FR2376399A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439380A1 (fr) * 1978-10-20 1980-05-16 Ogasawara Hiromi Detecteur de deplacement a mouvement rectiligne
EP0055331A2 (fr) * 1980-12-31 1982-07-07 International Business Machines Corporation Procédé pour ajuster des résistances à film mince en métal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591718A (en) * 1968-04-18 1971-07-06 Shintron Co Inc Graphical input tablet
US3593115A (en) * 1969-06-30 1971-07-13 Ibm Capacitive voltage divider
US3875331A (en) * 1973-11-08 1975-04-01 Vector General Vector tablet digitizing system
DE2429136A1 (de) * 1974-06-18 1976-01-08 Scheck Werner Dipl Phys Kapazitives laengen- oder winkelmessgeraet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591718A (en) * 1968-04-18 1971-07-06 Shintron Co Inc Graphical input tablet
US3593115A (en) * 1969-06-30 1971-07-13 Ibm Capacitive voltage divider
US3875331A (en) * 1973-11-08 1975-04-01 Vector General Vector tablet digitizing system
DE2429136A1 (de) * 1974-06-18 1976-01-08 Scheck Werner Dipl Phys Kapazitives laengen- oder winkelmessgeraet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439380A1 (fr) * 1978-10-20 1980-05-16 Ogasawara Hiromi Detecteur de deplacement a mouvement rectiligne
EP0055331A2 (fr) * 1980-12-31 1982-07-07 International Business Machines Corporation Procédé pour ajuster des résistances à film mince en métal
EP0055331A3 (en) * 1980-12-31 1983-05-18 International Business Machines Corporation Method of trimming thin metal resistors

Also Published As

Publication number Publication date
FR2376399B1 (fr) 1980-08-22

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Legal Events

Date Code Title Description
ST Notification of lapse