ES2068228T3 - Aparato para la introduccion de coordenadas. - Google Patents

Aparato para la introduccion de coordenadas.

Info

Publication number
ES2068228T3
ES2068228T3 ES89120907T ES89120907T ES2068228T3 ES 2068228 T3 ES2068228 T3 ES 2068228T3 ES 89120907 T ES89120907 T ES 89120907T ES 89120907 T ES89120907 T ES 89120907T ES 2068228 T3 ES2068228 T3 ES 2068228T3
Authority
ES
Spain
Prior art keywords
signal
detector
detect
circuit
output
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 - Lifetime
Application number
ES89120907T
Other languages
English (en)
Inventor
Kiyoshi Kaneko
Katsuyuki Kobayashi
Takeshi Kamono
Ryozo Yanagisawa
Shinnosuke Taniishi
Yuichiro Yoshimura
Atsushi No - River-Said Tanaka
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.)
Canon Inc
Original Assignee
Canon 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
Priority claimed from JP63283863A external-priority patent/JPH02130614A/ja
Priority claimed from JP28386188A external-priority patent/JP2612055B2/ja
Priority claimed from JP63283862A external-priority patent/JPH02130613A/ja
Priority claimed from JP1177011A external-priority patent/JPH0342712A/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of ES2068228T3 publication Critical patent/ES2068228T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/043Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
    • G06F3/0433Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves in which the acoustic waves are either generated by a movable member and propagated within a surface layer or propagated within a surface layer and captured by a movable member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

SE REVELA UN APARATO PARA EL INGRESO DE COORDENADAS EN EL QUE SE DETECTA UNA VIBRACION INGRESADA POR LA VIBRACION DE UN LAPICERO DE ENTRADA MEDIANTE LOS SENSORES DE VIBRACION UNIDOS A LA PLACA DE PROPAGACION DE VIBRACIONES DE MANERA TAL SE DETECTA SOBRE UNA PLACA DE VIDRIO TRANSPARENTE O SIMILAR LAS COORDENADAS DE LA POSICION DEL LAPICERO SOBRE LA PLACA. EL APARATO INCLUYE: UN CIRCUITO DE SALIDA ENVOLVENTE PARA LAS SEÑALES DE SALIDA ENVOLVENTE DE LAS SEÑALES DE DETECCION DE LOS SENSORES; UN CIRCUITO FILTRO TAL COMO UN LPF O UN BPF PARA PERMITIR EL PASO DE LAS SEÑALES ENVOLVENTES; UN CIRCUITO DISCRIMINADOR DE SALIDA PARA DETECTAR UNA PORCION QUE EXCEDA UN PREDETERMINADO VALOR DE UMBRAL EN LA SEÑAL ENVOLVENTE DE SALIDA DEL CIRCUITO DE FILTRO Y PARA EMITIR UNA SEÑAL DISCRIMINADORA; UN PRIMER DETECTOR PARA DETECTAR EL PICO DE LA SEÑAL ENVOLVENTE DE SALIDA DESDE EL CIRCUITO DE SALIDA ENVOLVENTE Y PARA DETECTAR LA SEÑAL ENVOLVENTE UTILIZANDO EL PICO COMO REFERENCIA; UN SEGUNDO DETECTOR PARA DETECTAR UNA SEÑAL DE FASE DE UNA SEÑAL DE DETECCION UTILIZANDO EL BORDE DE ATAQUE DE LA SEÑAL DE FASE A MODO DE REFERENCIA; UN SEGUNDO DETECTOR PARA DETECTAR UNA SEÑAL DE FASE DE LA SEÑAL DE DETECCION UTILIZANDO EL BORDE DE ATAQUE DE LA SEÑAL DE FASE COMO REFERENCIA EN EL PERIODO DE TIEMPO EN QUE LA SEÑAL DISCRIMINADORA DE SALIDA PROVIENE DEL CIRCUITO DE SALIDA DE SEÑAL DISCRIMINADORA; Y UN CIRCUITO DE CALCULO PARA CALCULAR LA POSICION DE LAS COORDENADAS DEL LAPICERO DE ENTRADA SOBRE LA BASE DEL TIEMPO DE PROPAGACION DE LA SEÑAL ENVOLVENTE DETECTADA POR EL PRIMER DETECTOR Y EL TIEMPO DE PROPAGACION DE LA SEÑAL DE FASE DETECTADA POR EL SEGUNDO DETECTOR.
ES89120907T 1988-11-11 1989-11-10 Aparato para la introduccion de coordenadas. Expired - Lifetime ES2068228T3 (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP63283863A JPH02130614A (ja) 1988-11-11 1988-11-11 座標入力装置
JP28386188A JP2612055B2 (ja) 1988-11-11 1988-11-11 座標入力装置
JP63283862A JPH02130613A (ja) 1988-11-11 1988-11-11 座標入力装置
JP1177011A JPH0342712A (ja) 1989-07-11 1989-07-11 座標入力装置

Publications (1)

Publication Number Publication Date
ES2068228T3 true ES2068228T3 (es) 1995-04-16

Family

ID=27474741

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89120907T Expired - Lifetime ES2068228T3 (es) 1988-11-11 1989-11-10 Aparato para la introduccion de coordenadas.

Country Status (3)

Country Link
EP (1) EP0368351B1 (es)
DE (1) DE68921147T2 (es)
ES (1) ES2068228T3 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3109826B2 (ja) * 1990-10-19 2000-11-20 キヤノン株式会社 座標入力装置および座標入力方法
DE69226241T2 (de) * 1991-11-27 1999-03-25 Canon Kk Koordinateneingabegerät
JP3255980B2 (ja) * 1992-08-31 2002-02-12 キヤノン株式会社 座標入力装置及びその方法
US5608390A (en) * 1994-02-23 1997-03-04 At&T Global Information Solutions Company Synchronous telemetry channel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3582968D1 (de) * 1984-07-25 1991-07-04 Hitachi Ltd Tablettartige koordinateneingabevorrichtung unter verwendung elastischer wellen.
DE3779019D1 (de) * 1986-06-27 1992-06-17 Canon Kk Koordinateneingabegeraet.

Also Published As

Publication number Publication date
EP0368351A2 (en) 1990-05-16
EP0368351B1 (en) 1995-02-15
EP0368351A3 (en) 1991-01-02
DE68921147D1 (de) 1995-03-23
DE68921147T2 (de) 1995-07-06

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