G - Physics – 08 – C
Patent
G - Physics
08
C
350/6, 340/135.1
G08C 21/00 (2006.01) G01B 7/004 (2006.01) G01D 5/16 (2006.01) G01D 5/165 (2006.01) G06F 3/033 (2006.01)
Patent
CA 1256180
ELECTROGRAPHIC APPARATUS Abstract of the Disclosure An electrographic apparatus and system utilizing a resistive layer having an active area which operates in conjunction with a stylus or tracer or other suitable position locator. An a.c. source or alternatively a signal treatment means is connected to the resistive layer through rows of electrodes. Improved accuracy is achieved through the use of electrodes at the ends of the electrode rows and through the use of an enhanced conductivity region which also allows the boundary of theactive area to be placed in close proximity to the electrodes.
509172
Kable Robert G.
Nakamura Shoichiro
Mcfadden Fincham
Scriptel Corporation
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