公开(公告)号：US20140210723A1

公开(公告)日：2014-07-31

申请号：US13949232

申请日：2013-07-24

Applicant: PixArt Imaging Inc.

Inventor： Yung-Chang Lin ,  Tsung-Fa Wang ,  Ching-Lin Chung

IPC: G06F3/0354

CPC classification number: G06F3/0383 ,  G06F1/3259 ,  G06F3/0317 ,  Y02D10/155

Abstract: An optical mouse apparatus includes a light source circuit, a sensing circuit, and a processing circuit. The light source circuit is used for generating and emitting a light signal onto a surface so as to generate a light reflected signal. The sensing circuit is used for estimating an image offset of the optical mouse apparatus. The processing circuit is coupled to the light source circuit and the sensing circuit and used for generating and outputting a control signal to a terminal according to the image offset outputted by the sensing circuit. The sensing circuit is further used for detecting at least one of a moving speed or an offset direction of the image offset of the optical mouse apparatus, so as to dynamically determine whether to compress data of the image offset outputted to the processing circuit, for reducing data amount read by the processing circuit.

Abstract translation: 光学鼠标装置包括光源电路，感测电路和处理电路。 光源电路用于在表面上产生和发射光信号，以产生光反射信号。 感测电路用于估计光学鼠标装置的图像偏移。 处理电路耦合到光源电路和感测电路，用于根据感测电路输出的图像偏移量向终端产生和输出控制信号。 感测电路还用于检测光学鼠标装置的图像偏移的移动速度或偏移方向中的至少一个，以便动态地确定是否压缩输出到处理电路的图像偏移的数据，以便减少 由处理电路读取的数据量。