Patents by Inventor Yuuichiro Tsukamizu

Yuuichiro Tsukamizu 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).

  • System and method for processing digital data while buffering digital data in a buffer memory
    Patent number: 7127657
    Abstract: A CD-ROM decoder for processing digital data while buffering the digital data in a buffer RAM. The CD-ROM decoder includes a host interface for storing the digital data in the buffer RAM. An EDC processing circuit generates an error detection code using the digital data read from the buffer RAM in a block unit. An ECC processing circuit generates an error correction code with the digital data and the error detection code. An internal RAM stores the digital data and adds the error detection code and the error correction code to the digital data when storing the digital data. A digital signal processor outputs the digital data, the error detection code, and the error correction code that are stored in the internal RAM in a block unit.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: October 24, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Tomofumi Watanabe, Yuuichiro Tsukamizu
  • Data processor
    Publication number: 20030159091
    Abstract: A CD-ROM decoder for processing digital data while buffering the digital data in a buffer RAM. The CD-ROM decoder includes a host interface for storing the digital data in the buffer RAM. An EDC processing circuit generates an error detection code using the digital data read from the buffer RAM in a block unit. An ECC processing circuit generates an error correction code with the digital data and the error detection code. An internal RAM stores the digital data and adds the error detection code and the error correction code to the digital data when storing the digital data. A digital signal processor outputs the digital data, the error detection code, and the error correction code that are stored in the internal RAM in a block unit.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 21, 2003
    Inventors: Tomofumi Watanabe, Yuuichiro Tsukamizu