Device for locating an object situated close to a detection area

Details Device for locating an object situated close to a detection area Device for locating an object situated close to a detection area

1992-10-08

1995-10-17

Peng, John K.

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

345173, 178 18, 178 19, G08C 2100

Patent

active

054594634

ABSTRACT:
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.

REFERENCES:
patent: 4550221 (1985-10-01), Mabusth
patent: 4686332 (1987-08-01), Greanias et al.
patent: 5016008 (1991-05-01), Gruaz et al.

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