Patents by Inventor Yi-Chuan Yao

Yi-Chuan Yao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070274181
    Abstract: A digital audio signal reproducing device includes a system processor, a first rotation disk, a second rotation disk, a first sensor, a second sensor, and a lighting assembly. The first sensor detects rotation speed and direction of the first rotation disk to output a first control signal. The second sensor detects the second rotation disk being pressed to output a second control signal. When the first control signal and the second control signal are outputted to the system processor simultaneously, the lighting assembly is controlled by the system processor to perform a first blinking mode, and when only the first control signal is outputted to the system processor, the lighting assembly is controlled by the system processor to perform a second blinking mode.
    Type: Application
    Filed: May 23, 2006
    Publication date: November 29, 2007
    Applicant: YA HORNG ELECTRONIC CO., LTD.
    Inventor: Yi-Chuan Yao