Patent ID: 6188229
Filing Date: 2001-02-13
Classification: G01R

Abstract:
A conductive-pattern recognition apparatus comprising:a main electrode roller formed by circular main electrodes and circular insulators arranged alternately along a straight line and coupled together;a pressure-sensitive rubber layer fixed onto an outer surface of said main electrode roller and contacted with said main electrodes and said insulators of said main electrode roller;a moving mechanism for moving a specimen with a conductive pattern in a direction perpendicular to a rotation axis of said main electrode roller so that said specimen applies a pressure to said pressure-sensitive rubber layer;a conduction detector for detecting electric conduction among at least two ones of said main electrodes of said main electrode roller through said pressure-sensitive rubber layer; anda rotation detector for detecting a rotation amount of said main electrode roller;wherein when a part of said pressure-sensitive rubber layer is contacted with said conductive pattern of said specimen, the part of said pressure-sensitive rubber layer causes electric conduction among corresponding ones of said main electrodes of said main electrode roller;whereby said conductive pattern of said specimen is recognized by using said conduction detector and said rotation detector.