Hybrid sensor module

摘要

A hybrid sensor module and methods of operating the same are provided. In one embodiment, the hybrid sensor module includes: (i) a touch sensor configured to sense motion of an object in proximity to a surface of the touch sensor; (ii) an optical navigation sensor (ONS) configured to illuminate the object through the surface of the touch sensor and to sense motion of the object based on light returned from the object; and (iii) a controller electrically coupled to the touch sensor and the ONS to process the sensed motion of the object and to generate an output signal in response to the sensed motion, wherein the controller is configured to dynamically adjust a tracking resolution of the hybrid sensor module based on a characteristic of the sensed motion. Other embodiments are disclosed.

主权项

1. A hybrid sensor module comprising:
a touch sensor configured to sense motion of a first object in proximity to a surface of the touch sensor; an optical navigation sensor (ONS) configured to illuminate the first object through the surface of the touch sensor and to sense motion of the first object based on light returned from the first object; and a controller electrically coupled to the touch sensor and ONS to process sensed motion of the first object and to generate an output signal in response to the sensed motion, wherein the controller is configured to dynamically adjust a tracking resolution of the hybrid sensor module based on a characteristic of the sensed motion, and to generate the output signal in response to a weighted combination of the sensed motion from the ONS and from the touch sensor, and to give greater weight to the sensed motion from the ONS when a speed of the sensed motion from the ONS is more than a specified speed, and to give greater weight to the sensed motion from the touch sensor when the speed of the sensed motion from the touch sensor is less than the specified speed.