ES2118509T3 - Dispositivo de mando de tecla sensitiva y teclado de mando de teclas sensitivas. - Google Patents

Dispositivo de mando de tecla sensitiva y teclado de mando de teclas sensitivas.

Info

Publication number
ES2118509T3
ES2118509T3 ES95400302T ES95400302T ES2118509T3 ES 2118509 T3 ES2118509 T3 ES 2118509T3 ES 95400302 T ES95400302 T ES 95400302T ES 95400302 T ES95400302 T ES 95400302T ES 2118509 T3 ES2118509 T3 ES 2118509T3
Authority
ES
Spain
Prior art keywords
voltage
key control
sensitive key
input signal
key
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
ES95400302T
Other languages
English (en)
Inventor
Didier Gouardo
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.)
Compagnie Europeenne pour lEquipement Menager SA
Original Assignee
Compagnie Europeenne pour lEquipement Menager SA
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 Compagnie Europeenne pour lEquipement Menager SA filed Critical Compagnie Europeenne pour lEquipement Menager SA
Application granted granted Critical
Publication of ES2118509T3 publication Critical patent/ES2118509T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches
    • H03K17/9622—Capacitive touch switches using a plurality of detectors, e.g. keyboard
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/9607—Capacitive touch switches
    • H03K2217/96071—Capacitive touch switches characterised by the detection principle
    • H03K2217/96072—Phase comparison, i.e. where a phase comparator receives at one input the signal directly from the oscillator, at a second input the same signal but delayed, with a delay depending on a sensing capacitance

Landscapes

  • Electronic Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

LA PRESENTE INVENCION SE REFIERE A LOS DISPOSITIVOS Y TECLADOS CON TECLAS SENSITIVAS, POR EFECTO CAPACITIVO DEL TIPO QUE COMPRENDE UN CIRCUITO (2) ELECTRONICO CON TECLA QUE RECIBE UNA SEÑAL DE ENTRADA (VE) DE UN GENERADOR DE FRECUENCIA, COMPRENDIENDO EL CIRCUITO MEDIOS (23, 24, 25) DE RECTIFICACION DE TENSION MONTADOS EN DERIVACION SOBRE LA TECLA (20) Y MEDIOS (26) DE COMPARACION DE LA TENSION RECTIFICADA CON UNA TENSION DE REFERENCIA CONTINUA (VS) CARACTERISTICAS DE LA ACTIVACION Y DE LA NO ACTIVACION DE LA TECLA PARA EVITAR LOS PROBLEMAS DE FUNCIONAMIENTO UNIDOS A LAS VARIACIONES POSIBLES DE LA SEÑAL DE ENTRADA (VE) EN FUNCION DEL ENTORNO, LA PRESENTE INVENCION PREVE EQUIPAR LOS DISPOSITIVOS DE CONTROL DE MEDIOS (3) QUE TOMAN LA SEÑAL DE ENTRADA Y ELABORAN UNA TENSION CONTINUA SENSIBLEMENTE PROPORCIONAL AL VALOR DE PICO DE LA SEÑAL DE ENTRADA (VE), CONSTITUYENDO ESTA TENSION LA TENSION DE REFERENCIA (VREF).
ES95400302T 1994-02-18 1995-02-14 Dispositivo de mando de tecla sensitiva y teclado de mando de teclas sensitivas. Expired - Lifetime ES2118509T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9401864A FR2716585B1 (fr) 1994-02-18 1994-02-18 Dispositif de commande à touche sensitive et clavier de commande à touches sensitives.

Publications (1)

Publication Number Publication Date
ES2118509T3 true ES2118509T3 (es) 1998-09-16

Family

ID=9460220

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95400302T Expired - Lifetime ES2118509T3 (es) 1994-02-18 1995-02-14 Dispositivo de mando de tecla sensitiva y teclado de mando de teclas sensitivas.

Country Status (4)

Country Link
EP (1) EP0668657B1 (es)
DE (1) DE69503160T2 (es)
ES (1) ES2118509T3 (es)
FR (1) FR2716585B1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758423B1 (fr) * 1997-01-16 2000-01-28 Europ Equip Menager Dispositif de commande a touches sensitives
KR100366503B1 (ko) * 2000-06-13 2003-01-09 주식회사 엘지이아이 글래스 터치 감지회로
DE10121008B4 (de) * 2001-04-28 2004-04-01 Rawe Electronic Gmbh Kapazitive Tastatur mit Auswerteschaltung
JP4082402B2 (ja) 2004-10-19 2008-04-30 松下電器産業株式会社 タッチキーを用いた電磁調理器
US8174503B2 (en) 2008-05-17 2012-05-08 David H. Cain Touch-based authentication of a mobile device through user generated pattern creation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305135A (en) * 1979-07-30 1981-12-08 International Business Machines Corp. Program controlled capacitive keyboard variable threshold sensing system
US4529967A (en) * 1982-07-15 1985-07-16 Gifft Thomas H Non contacting inductive keyboard
FR2661575B1 (fr) * 1990-04-25 1996-03-08 Digi France Dispositif de touche sensitive et clavier mettant en óoeuvre un tel dispositif.

Also Published As

Publication number Publication date
DE69503160T2 (de) 1998-10-22
EP0668657B1 (fr) 1998-07-01
DE69503160D1 (de) 1998-08-06
EP0668657A1 (fr) 1995-08-23
FR2716585B1 (fr) 1996-03-22
FR2716585A1 (fr) 1995-08-25

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Effective date: 19980302

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