Patents by Inventor Takafumi Maehara

Takafumi Maehara 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).

  • Decoding method and decoding apparatus
    Patent number: 8074156
    Abstract: Disclosed herein is a decoding method of performing maximum a posteriori probability (MAP) decoding of selecting one decoded word from one or more decoded word candidates obtained by subjecting a linear code to iterative decoding by comparison of distances between a reception word and each decoded word candidate. A decoded word candidate in which a known value in a part of a transmission word has been changed to another value is excluded from the one or more decoded word candidates.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: December 6, 2011
    Assignee: Sony Corporation
    Inventors: Takashi Yokokawa, Makiko Yamamoto, Takafumi Maehara
  • Decoding Method and Decoding Apparatus
    Publication number: 20080198953
    Abstract: Disclosed herein is a decoding method of performing maximum a posteriori probability (MAP) decoding of selecting one decoded word from one or more decoded word candidates obtained by subjecting a linear code to iterative decoding by comparison of distances between a reception word and each decoded word candidate. A decoded word candidate in which a known value in a part of a transmission word has been changed to another value is excluded from the one or more decoded word candidates.
    Type: Application
    Filed: February 13, 2008
    Publication date: August 21, 2008
    Inventors: Takashi Yokokawa, Makiko Yamamoto, Takafumi Maehara