LU91020B1 - Data input device, especially an alpha-numeric keyboard, has unidirectional position detector associated with each line of keys - Google Patents

Data input device, especially an alpha-numeric keyboard, has unidirectional position detector associated with each line of keys

Info

Publication number
LU91020B1
LU91020B1 LU91020A LU91020A LU91020B1 LU 91020 B1 LU91020 B1 LU 91020B1 LU 91020 A LU91020 A LU 91020A LU 91020 A LU91020 A LU 91020A LU 91020 B1 LU91020 B1 LU 91020B1
Authority
LU
Luxembourg
Prior art keywords
input device
data input
keys
position detector
unidirectional position
Prior art date
Application number
LU91020A
Other languages
French (fr)
Inventor
Philippe Boyer
Bogdan Serban
Original Assignee
Iee Sarl
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 Iee Sarl filed Critical Iee Sarl
Priority to LU91020A priority Critical patent/LU91020B1/en
Priority to PCT/EP2003/050887 priority patent/WO2004049364A1/en
Priority to EP03796049A priority patent/EP1599889B1/en
Priority to AU2003298317A priority patent/AU2003298317A1/en
Priority to DE60311009T priority patent/DE60311009T2/en
Priority to JP2005510246A priority patent/JP2006507613A/en
Priority to AT03796049T priority patent/ATE350758T1/en
Priority to KR1020057009438A priority patent/KR20050072493A/en
Priority to US10/535,399 priority patent/US7800586B2/en
Application granted granted Critical
Publication of LU91020B1 publication Critical patent/LU91020B1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • 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
    • H03M11/22—Static coding
    • H03M11/24—Static coding using analogue means, e.g. by coding the states of multiple switches into a single multi-level analogue signal or by indicating the type of a device using the voltage level at a specific tap of a resistive divider
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/01—Miscellaneous combined with other elements on the same substrate
    • H01H2239/012—Decoding impedances

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

The data input device comprises several keys which are arranged over at least two lines. A unidirectional position detector is associated with each line of keys and each unidirectional position detector comprises a first input connection, a second input connection and an output connection. The output connections of the unidirectional position detectors are connected at different locations to a first ohmic resistor. In addition, the first input connections are connected to a first terminal of the data input device and the second input connections are connected to a second terminal of the data input device.
LU91020A 2002-11-25 2003-04-16 Data input device, especially an alpha-numeric keyboard, has unidirectional position detector associated with each line of keys LU91020B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
LU91020A LU91020B1 (en) 2003-04-16 2003-04-16 Data input device, especially an alpha-numeric keyboard, has unidirectional position detector associated with each line of keys
PCT/EP2003/050887 WO2004049364A1 (en) 2002-11-25 2003-11-24 Data input device
EP03796049A EP1599889B1 (en) 2002-11-25 2003-11-24 Data input device
AU2003298317A AU2003298317A1 (en) 2002-11-25 2003-11-24 Data input device
DE60311009T DE60311009T2 (en) 2002-11-25 2003-11-24 Data entry device
JP2005510246A JP2006507613A (en) 2002-11-25 2003-11-24 Data input device
AT03796049T ATE350758T1 (en) 2002-11-25 2003-11-24 INPUT DEVICE
KR1020057009438A KR20050072493A (en) 2002-11-25 2003-11-24 Data input device
US10/535,399 US7800586B2 (en) 2002-11-25 2003-11-24 Data input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU91020A LU91020B1 (en) 2003-04-16 2003-04-16 Data input device, especially an alpha-numeric keyboard, has unidirectional position detector associated with each line of keys

Publications (1)

Publication Number Publication Date
LU91020B1 true LU91020B1 (en) 2004-10-18

Family

ID=33308415

Family Applications (1)

Application Number Title Priority Date Filing Date
LU91020A LU91020B1 (en) 2002-11-25 2003-04-16 Data input device, especially an alpha-numeric keyboard, has unidirectional position detector associated with each line of keys

Country Status (1)

Country Link
LU (1) LU91020B1 (en)

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