US 2014/0210723 A1 · OPTICAL MOUSE APPARATUS AND DATA COMPRESSION METHOD USED IN OPTICAL MOUSE APPARATUS

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.

Claims18

Dependent claims

An optical mouse apparatus, comprising:

a light source circuit, arranged for generating and emitting an optical signal, wherein the optical signal is emitted upon a surface and then forms an optical reflected signal;
a sensing circuit, arranged for estimating an image displacement of the optical mouse apparatus according to the optical reflected signal;
and
a processing circuit, coupled to the light source circuit and the sensing circuit, the processing circuit arranged for generating and outputting a control signal to a host terminal according to the image displacement outputted by the sensing circuit;
wherein the sensing circuit is further arranged for detecting at least one of a moving speed and a displacement direction of the image displacement of the optical mouse apparatus to dynamically determine whether to compress data of the image displacement outputted to the processing circuit for reducing a data amount read by the processing circuit.

2 more elements

A data compression method utilized in an optical mouse apparatus, comprising:

generating and emitting an optical signal, wherein the optical signal is emitted upon a surface, and then forms an optical reflected signal;
estimating an image displacement of the optical mouse apparatus according to the optical reflected signal;
detecting at least one of a moving speed and a displacement direction of the image displacement of the optical mouse apparatus to dynamically determine whether to compress data of the outputted image displacement for reducing a data amount read by a processing circuit;
and
utilizing the processing circuit to generate and output a control signal to a host terminal according to the estimated image displacement.

2 more elements

Dependencies are inferred from the claim text.

Optical mouse apparatus and data compression method used in optical mouse apparatus

Life of this patent

Optical mouse apparatus and data compression method used in optical mouse apparatus

Life of this patent

Abstract

Claims18