Patent ID: 6999064
Filing Date: 2006-02-14
Classification: G06F

Abstract:
1. A single integrated circuit for an optical mouse, comprising: an image pixel array for recognizing light and shadow of a surface under the optical mouse by reacting according to amounts of light reflected by the surface; an analog-to-digital converter for converting each analog data of image pixels of the image pixel array into digital data; a motion vector calculation unit for converting the digital data from the analog-to-digital converter into one-bit data and calculating a motion vector; a motion vector process unit for accumulating motion vectors calculated by the motion vector calculation unit, correcting errors of the motion vectors, and accumulating moving distances of the optical mouse; a timing signal generator for generating control signals to control an overall operation of the integrated circuit and operation signals pursuant to operation states of the integrated circuit; an interface designed to transmit values processed by the motion vector process unit into a computer; and a transceiver for enabling one of a Universal Serial Bus (USB) or an IBM Personal System/2 (PS/2) in the interface.