GRID SIGNAL RECEIVER CAPABLE OF SOFT POINTING, A WIRELESS POINTING SYSTEM AND A MOTION VECTOR CORRECTING METHOD THEREOFGRID SIGNAL TRANSMITTER AND RECEIVER, A WIRELESS POINTING SYSTEM INCLUDING THE TRANSMITTER AND RECEIVER, AND A MOVEMENT DISCRIMINATING METHOD OF THE SYSTEM, CAPABLE OF REVISING MALFUNCTION ACCORDING TO INCLINATION OF A GRID SIGNAL RECEIVER

摘要

PURPOSE: A grid signal transmitter and receiver, a wireless pointing system including the transmitter and receiver, and a movement discriminating method of the system are provided to eliminate fundamentally an error which misjudges a movement direction of the grid signal transmitter regardless of a distance.;CONSTITUTION: A microcomputer(120) creates a return frequency signal in each axis. An X-grid generator(160) creates an X-axis pattern with the X-axis return frequency signal. A Y-grid generator(165) receives a Y-axis pattern with a Y-axis return frequency signal. The first lens(180) examines the X-axis pattern in a grid signal receiver(200) around. The second lens(185) examines the Y-axis pattern in the grid signal receiver around. A grid pattern is formed with a plurality of horizontal grid lines and vertical grid lines.;COPYRIGHT KIPO 2010