Position Sensing Systems Including Magnetoresistive Elements

摘要

The present invention provides a position-sensing system which employs sensors incorporating magnetoresistive material. The position of a magnetic information input member is determined through the resistance chang e ofthe magnetoresistive sensor in response to the magne tic field from the magnetic information input member. Exemplary magnetoresistive materials are lanthanum manganites having high magnetoresistive ratios. Two-dimensional position sen singsystems for graphics tablets are also described.