Wireless optical pointing device with a common oscillation circuit
AssigneePixart Imaging Inc.
InventorJin-Hsin Yang
Life of this patent
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Abstract
A wireless optical pointing device. The wireless optical pointing device comprises a photo sensor detecting a series of continuous images on an operating surface, a processing unit coupled with the photo sensor, processing the detected images, and outputting an image displacement signal accordingly, and a RF (Radio Frequency) unit coupled with the processing unit and transmitting a RF signal according to the image displacement signal, wherein the photo sensor and the RF unit receive a common oscillation frequency source and operate accordingly.
Claims14
A wireless electronic device, comprising:
- a photo sensor detecting a series of continuous images;
- a processing unit coupled with the photo sensor, processing the detected images, and outputting an image displacement signal accordingly;
- and
- a RF (Radio Frequency) unit coupled with the processing unit and transmitting a RF signal according to the image displacement signal;
- wherein the photo sensor and the RF unit receive a common oscillation frequency source and operate accordingly.
A wireless optical pointing device, comprising:
- a photo sensor detecting a series of continuous images on an operating surface;
- a processing unit coupled with the photo sensor, processing the detected images, and outputting an image displacement signal accordingly;
- and
- a RF (Radio Frequency) unit coupled with the processing unit and transmitting a RF signal according to the image displacement signal;
- wherein the photo sensor and the RF unit receive a common oscillation frequency source and operate accordingly.
Dependencies are inferred from the claim text.