Current sensor output measurement system and method

摘要

Finger navigation methods, devices and systems are disclosed. In one embodiment the system comprises a light source configured to radiate a light beam towards a tactile surface. The system also comprises a photo detector module configured to sense speckle beams emitted by a target surface navigating the tactile surface in response to light hitting the target surface. The system further comprises a processor configured to track a movement of the target surface with respect to the tactile surface based on output from the photo detector module and a conductor structure for capacitive sensing of the target surface with respect to the tactile surface. The conductor structure is configured to determine a plurality of navigational functionalities based on the capacitive sensing of the target surface with respect to the tactile surface, including at least one of single click, double click, and scrolling.

主权项

1. A finger navigation sensor system, comprising:
a light source configured to radiate a light beam towards a tactile surface; a photo detector module configured to sense speckle beams from a target surface navigating the tactile surface in response to light hitting the target surface; a processor configured to report tracking data on movement of the target surface with respect to the tactile surface based on output from the photo detector module; and a conductor structure for capacitive sensing of the target surface with respect to the tactile surface, wherein the target surface comprises a human finger and wherein the conductor structure is configured to detect based on the capacitive sensing of the human finger with respect to the tactile surface, single click, double click, and scrolling.