Patents by Inventor Yuusuke Tokunaga

Yuusuke Tokunaga 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: 20020175890
    Abstract: A digital signal corresponding to each pixel of a liquid crystal display (LCD) is converted into an analog signal by a digital-to-analog (D-A) converting section. A CCD (Charge Coupled Device) delay line sequentially transfers the received analog signal according to a transfer clock signal. In response to a drive control signal, a signal output section receives the analog signal from the CCD delay line for output as a pixel signal of the LCD. The above structure eliminates the need to provide a multiplicity of D-A converters corresponding to the number of pixels per scanning line.
    Type: Application
    Filed: May 21, 2002
    Publication date: November 28, 2002
    Applicant: Matsushita Electric Industrial Co., Ltd
    Inventors: Shiro Dosho, Keijiro Umehara, Yuusuke Tokunaga