05459463 is referenced by 126 patents and cites 3 patents.

A device is disclosed for locating an object situated close to a detection area and a transparent keyboard using said device. This device comprises a set of detection zones connected so as to form lines which extend parallel to each other and to a detection area, a second set of zones connected to each other so as to form columns which extend perpendicularly to the lines, at a small distance therefrom, a scanning device which applies an electric signal to the lines and columns and which identifies the lines and columns subject to a signal variation and means for determining the position of the object to be detected as a function of the lines and columns on which the signal variations have been detected.

Title
Device for locating an object situated close to a detection area and a transparent keyboard using said device
Application Number
706489
Publication Number
5459463
Application Date
October 8, 1992
Publication Date
October 17, 1995
Inventor
Claude Marchal
Garancieres
FR
Daniel Gruaz
Montigny le Bretonneux
FR
Agent
William A Drucker
Assignee
Sextant Avionique
FR
IPC
G08C 21/00
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