ES2721480T3 - Procedimiento y dispositivo para gestionar una matriz de teclas, programa informático y medios de almacenamiento correspondientes - Google Patents

Procedimiento y dispositivo para gestionar una matriz de teclas, programa informático y medios de almacenamiento correspondientes Download PDF

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Publication number
ES2721480T3
ES2721480T3 ES12777920T ES12777920T ES2721480T3 ES 2721480 T3 ES2721480 T3 ES 2721480T3 ES 12777920 T ES12777920 T ES 12777920T ES 12777920 T ES12777920 T ES 12777920T ES 2721480 T3 ES2721480 T3 ES 2721480T3
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ES
Spain
Prior art keywords
logical value
column
row
time interval
predetermined time
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.)
Active
Application number
ES12777920T
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English (en)
Inventor
Mohammed Bellahcene
Olivier Benoit
Jean-Jacques Delorme
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.)
Worldline MS France
Original Assignee
Ingenico Group 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 Ingenico Group SA filed Critical Ingenico Group SA
Application granted granted Critical
Publication of ES2721480T3 publication Critical patent/ES2721480T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/83—Protecting input, output or interconnection devices input devices, e.g. keyboards, mice or controllers thereof
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/006—Measures for preventing unauthorised decoding of keyboards
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0238—Programmable keyboards
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/02—Details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/02—Details
    • H03M11/04—Coding of multifunction keys
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/20—Dynamic coding, i.e. by key scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Human Computer Interaction (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Lock And Its Accessories (AREA)

Abstract

Procedimiento de gestión, mediante un dispositivo (10), de una matriz de teclas que comprende al menos una fila (LG0 a LG3) y dos columnas (COL0 a COL2), permitiendo cada tecla, cuando es pulsada, cortocircuitar una fila y una columna de dicha matriz, comprendiendo el procedimiento al menos una iteración de una fase de escaneo que comprende las etapas siguientes para cada una de las filas procesadas sucesivamente: - escritura de un valor lógico predeterminado en la fila; y - para cada columna, lectura de un valor lógico en la columna para determinar si la columna está cortocircuitada con la fila, por comparación entre el valor lógico leído y el valor lógico predeterminado, caracterizado por que, para cada una de las filas procesadas sucesivamente: - la etapa de escritura del valor lógico predeterminado en la fila se efectúa durante un intervalo de tiempo predeterminado (T); - durante dicho intervalo de tiempo predeterminado (T), una etapa de exploración simultánea de todas las teclas asociadas con la misma fila que comprende, para cada una de dichas columnas: - la etapa de lectura de un valor lógico en la columna se realiza durante una primera parte (T1) de dicho intervalo de tiempo predeterminado (T); - la fase de escaneo comprende una etapa de escritura adicional del valor lógico predeterminado en la columna, durante una segunda parte (T2) de dicho intervalo de tiempo predeterminado (T), la duración de dicho intervalo de tiempo predeterminado (T) es igual a la suma de las duraciones de las primera y segunda partes.
ES12777920T 2011-10-28 2012-10-25 Procedimiento y dispositivo para gestionar una matriz de teclas, programa informático y medios de almacenamiento correspondientes Active ES2721480T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1159798A FR2982054B1 (fr) 2011-10-28 2011-10-28 Procede et dispositif de gestion d'une matrice de touches, produit programme d'ordinateur et moyen de stockage correspondants.
PCT/EP2012/071189 WO2013060801A1 (fr) 2011-10-28 2012-10-25 Procede et dispositif de gestion d'une matrice de touches, produit programme d'ordinateur et moyen de stockage correspondants

Publications (1)

Publication Number Publication Date
ES2721480T3 true ES2721480T3 (es) 2019-07-31

Family

ID=47073455

Family Applications (1)

Application Number Title Priority Date Filing Date
ES12777920T Active ES2721480T3 (es) 2011-10-28 2012-10-25 Procedimiento y dispositivo para gestionar una matriz de teclas, programa informático y medios de almacenamiento correspondientes

Country Status (8)

Country Link
US (1) US9372547B2 (es)
EP (1) EP2771976B1 (es)
BR (1) BR112014009952A2 (es)
CA (1) CA2852361C (es)
ES (1) ES2721480T3 (es)
FR (1) FR2982054B1 (es)
PL (1) PL2771976T3 (es)
WO (1) WO2013060801A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2982054B1 (fr) * 2011-10-28 2014-06-20 Ingenico Sa Procede et dispositif de gestion d'une matrice de touches, produit programme d'ordinateur et moyen de stockage correspondants.
TWI678456B (zh) * 2019-06-13 2019-12-01 東隆五金工業股份有限公司 電子鎖與用於電子鎖的按鍵掃描系統

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610806A (en) * 1969-10-30 1971-10-05 North American Rockwell Adaptive sustain system for digital electronic organ
US4528660A (en) * 1983-12-08 1985-07-09 The United States Of America As Represented By The Secretary Of The Air Force Multiplexed data stream monitor
FR2599525B1 (fr) 1986-06-02 1988-07-29 Dassault Electronique Unite a clavier de securite, en particulier pour la composition d'un code confidentiel
US5113380A (en) * 1989-08-24 1992-05-12 Levine Alfred B Multiple option electronic scheduler and rescheduler
DE69032498T2 (de) * 1989-10-23 1999-03-04 Mitsubishi Denki K.K., Tokio/Tokyo Zellenvermittlungseinrichtung
US5832206A (en) * 1996-03-25 1998-11-03 Schlumberger Technologies, Inc. Apparatus and method to provide security for a keypad processor of a transaction terminal
US6054940A (en) * 1998-02-09 2000-04-25 Gilbarco Inc. Keypad scanning security system
JP2000106550A (ja) * 1998-09-29 2000-04-11 Fujitsu Ltd データ通信装置
US7181017B1 (en) * 2001-03-23 2007-02-20 David Felsher System and method for secure three-party communications
JP4203773B2 (ja) * 2006-08-01 2009-01-07 ソニー株式会社 表示装置
US8081091B2 (en) * 2008-07-31 2011-12-20 Maxim Integrated Products, Inc. Secure keypad scanning
WO2011063859A1 (en) * 2009-11-30 2011-06-03 Nokia Corporation Touch position detection method and apparatus
FR2982054B1 (fr) * 2011-10-28 2014-06-20 Ingenico Sa Procede et dispositif de gestion d'une matrice de touches, produit programme d'ordinateur et moyen de stockage correspondants.
FR2982392B1 (fr) * 2011-11-04 2013-12-20 Ingenico Sa Procede et dispositif de gestion d'une matrice de touches, avec protection contre un dispositif espion actif, produit programme d'ordinateur et moyen de stockage correspondants.
AU2013270397B2 (en) * 2012-06-01 2015-11-12 Blackberry Limited Universal synchronization engine based on probabilistic methods for guarantee of lock in multiformat audio systems
US9479275B2 (en) * 2012-06-01 2016-10-25 Blackberry Limited Multiformat digital audio interface

Also Published As

Publication number Publication date
US20140285365A1 (en) 2014-09-25
US9372547B2 (en) 2016-06-21
EP2771976B1 (fr) 2019-01-23
BR112014009952A2 (pt) 2017-04-25
PL2771976T3 (pl) 2019-07-31
WO2013060801A1 (fr) 2013-05-02
CA2852361A1 (en) 2013-05-02
FR2982054B1 (fr) 2014-06-20
EP2771976A1 (fr) 2014-09-03
FR2982054A1 (fr) 2013-05-03
CA2852361C (en) 2019-12-31

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