Patent ID: 8169420
Filing Date: 2012-05-01
Classification: G06F

Abstract:
1. An optical navigation system comprising: a resolution switching engine to set a resolution status based on a motion speed of a tracking surface relative to an optical finger navigation sensor, wherein the motion speed is a measure of motion data over time; a surface detection engine coupled to the resolution switching engine, the surface detection engine to set a surface detection status based on the present resolution status that is set by the resolution switching engine; and a navigation engine coupled to the surface detection engine, the navigation engine to read the motion data from the navigation sensor and to report the motion data to a computing device according to the present surface detection status that is set by the surface detection engine in response to the detection engine detecting a shutter value below a first threshold value, and wherein the navigation engine is further configured to discard the motion data from the navigation sensor in response to the surface detection engine detecting a shutter value above a second threshold value.