Scheme capable of calibrating value of sampling precision of optical sensor for tracking
AssigneePixArt Imaging (Penang) SDN. BHD.
InventorChiang Hee Lim
Life of this patent
Estimating the term…
Abstract
A method for calibrating a value of sampling precision of an optical sensor for tracking includes: reading a precision variance and a setting precision value from a memory device; measuring the sampling precision of the optical sensor under a normal mode to generate an actually measured precision value; calculating a normalized value that is proportional to the actually measured precision value according to the precision variance, the actually measured precision value, and the setting precision value; and, calibrating the actually measured precision value by using the normalized value.
Claims17
A method for calibrating a value of sampling precision of an optical sensor for tracking a mouse device, comprising:
- reading a precision variance and a setting precision value from a memory device;
- measuring the sampling precision of the optical sensor under a normal mode to generate an actually measured precision value;
- calculating a normalized value according to the precision variance, the actually measured precision value, and the setting precision value, wherein the normalized value is proportional to the actually measured precision value and is inversely proportional to the precision variance;
- and
- reporting and sending the normalized value as a result of a motion of the mouse device to a remote host device to make the remote host device control the mouse device based on the normalized value.
An optical sensor capable of calibrating a value of sampling precision of the optical sensor for tracking a mouse device, comprising:
- a memory device storing a precision variance and a setting precision value;
- a detecting circuit, for measuring the sampling precision of the optical sensor under a normal mode to generate an actually measured precision value;
- and
- a controller, coupled to the memory device and the detecting circuit, for calculating a normalized value according to the precision variance, the actually measured precision value, and the setting precision value, and for reporting and sending the normalized value as a result of a motion of the mouse device to a remote host device to make the remote host device control the mouse device based on the normalized value;
- wherein the normalized value is proportional to the actually measured precision value and is inversely proportional to the precision variance.
A host device remotely connected to an optical sensor and capable of calibrating a value of sampling precision of the optical sensor for tracking a mouse device, comprising:
- a memory device storing a precision variance and a setting precision value;
- a controller, coupled to the memory device, for controlling the optical sensor to measure the sampling precision of the optical sensor under a normal mode to generate an actually measured precision value, for calculating a normalized value according to the precision variance, the actually measured precision value, and the setting precision value, and for receiving the normalized value reported and sent from the optical sensor and for controlling the mouse device based on the normalized value;
- wherein the normalized value is proportional to the actually measured precision value and is inversely proportional to the precision variance.
Dependencies are inferred from the claim text.