GRID SIGNAL RECEIVER AND WIRELESS POINTIG SYSTEM HAVING ITS

摘要

PURPOSE: A grid signal receiver and a wireless pointing system including the receiver are provided to prevent a malfunction according to the inclination of a remote controller by proceeding sensing and correction of inclination of a grid signal transmitter. CONSTITUTION: A microcomputer(120) creates a return frequency signal in each axis. An X-grid generator(140) creates an X-axis pattern with an X-axis return frequency signal. Lens(160) examines an X-axis pattern in a grid signal receiver(200) around. A signal receiver(220) senses inclination of a grid through a slope sensing sensor(E). The motion vector processor(240) receives the sensed signal. The motion vector processor calculates a motion.