Patents by Inventor Takeshi Kyomoto

Takeshi Kyomoto 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).

  • Error control apparatus and method using cyclic code
    Patent number: 6516439
    Abstract: An error control apparatus includes: a deinterleaver for deinterleaving data of a predetermined number of bits coded by predetermined cyclic codes, which is to be interleaved in accordance with a predetermined interleaving order; a first cyclic code checking circuit for receiving an output of the deinterleaver and making a cyclic code check on the data of the predetermined number of bits by a check system corresponding to a coding system of the cyclic code; and a second cyclic code checking circuit for receiving an output of the deinterleaver and making a cyclic code check on the data of the predetermined number of bits by a check system corresponding to the coding system of the cyclic code simultaneously with the cyclic code check by the first cyclic code checking circuit in substantially the same time while canceling an interleave effect by the deinterleaver.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: February 4, 2003
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yukio Kodama, Takeshi Kyomoto
  • Error control apparatus and method using cyclic code
    Publication number: 20010056563
    Abstract: An error control apparatus includes: a deinterleaver for deinterleaving data of a predetermined number of bits coded by predetermined cyclic codes, which is to be interleaved in accordance with a predetermined interleaving order; a first cyclic code checking circuit for receiving an output of the deinterleaver and making a cyclic code check on the data of the predetermined number of bits by a check system corresponding to a coding system of the cyclic code; and a second cyclic code checking circuit for receiving an output of the deinterleaver and making a cyclic code check on the data of the predetermined number of bits by a check system corresponding to the coding system of the cyclic code simultaneously with the cyclic code check by the first cyclic code checking circuit in substantially the same time while canceling an interleave effect by the deinterleaver.
    Type: Application
    Filed: July 6, 2001
    Publication date: December 27, 2001
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yukio Kodama, Takeshi Kyomoto