Patents by Inventor Tateshi Nagai

Tateshi Nagai 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: 20040101054
    Abstract: A coding and/or decoding system includes: a code-word table for storing therein a plurality of code words, which are capable of being decoded both in forward and backward directions and which are formed so that delimiters of the code words are capable of being identified by a predetermined weight of the code words, so that the code words correspond to different source symbols; an encoder for selecting code words corresponding to inputted source symbols from the code-word table; and a synchronization interval setting part for preparing coded data every predetermined interval using the code words selected by the encoder and for inserting stuffing codes capable of being decoded in the backward direction. Thus, it is possible to decrease useless bit patterns to enhance the coding efficiency by smaller amounts of calculation and storage, and to decode variable length codes both in the forward and backward directions even if the synchronization interval is set every interval using the stuffing bits.
    Type: Application
    Filed: October 10, 2003
    Publication date: May 27, 2004
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Chujoh, Toshiaki Watanabe, Yoshihiro Kikuchi, Tateshi Nagai
  • Publication number: 20040071450
    Abstract: A coding and/or decoding system includes: a code-word table for storing therein a plurality of code words, which are capable of being decoded both in forward and backward directions and which are formed so that delimiters of the code words are capable of being identified by a predetermined weight of the code words, so that the code words correspond to different source symbols; an encoder for selecting code words corresponding to inputted source symbols from the code-word table; and a synchronization interval setting part for preparing coded data every predetermined interval using the code words selected by the encoder and for inserting stuffing codes capable of being decoded in the backward direction. Thus, it is possible to decrease useless bit patterns to enhance the coding efficiency by smaller amounts of calculation and storage, and to decode variable length codes both in the forward and backward directions even if the synchronization interval is set every interval using the stuffing bits.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 15, 2004
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Chujoh, Toshiaki Watanabe, Yoshihiro Kikuchi, Tateshi Nagai
  • Publication number: 20040071451
    Abstract: A coding and/or decoding system includes: a code-word table for storing therein a plurality of code words, which are capable of being decoded both in forward and backward directions and which are formed so that delimiters of the code words are capable of being identified by a predetermined weight of the code words, so that the code words correspond to different source symbols; an encoder for selecting code words corresponding to inputted source symbols from the code-word table; and a synchronization interval setting part for preparing coded data every predetermined interval using the code words selected by the encoder and for inserting stuffing codes capable of being decoded in the backward direction. Thus, it is possible to decrease useless bit patterns to enhance the coding efficiency by smaller amounts of calculation and storage, and to decode variable length codes both in the forward and backward directions even if the synchronization interval is set every interval using the stuffing bits.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 15, 2004
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Chujoh, Toshiaki Watanabe, Yoshihiro Kikuchi, Tateshi Nagai
  • Publication number: 20040071449
    Abstract: A coding and/or decoding system includes: a code-word table for storing therein a plurality of code words, which are capable of being decoded both in forward and backward directions and which are formed so that delimiters of the code words are capable of being identified by a predetermined weight of the code words, so that the code words correspond to different source symbols; an encoder for selecting code words corresponding to inputted source symbols from the code-word table; and a synchronization interval setting part for preparing coded data every predetermined interval using the code words selected by the encoder and for inserting stuffing codes capable of being decoded in the backward direction. Thus, it is possible to decrease useless bit patterns to enhance the coding efficiency by smaller amounts of calculation and storage, and to decode variable length codes both in the forward and backward directions even if the synchronization interval is set every interval using the stuffing bits.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 15, 2004
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Chujoh, Toshiaki Watanabe, Yoshihiro Kikuchi, Tateshi Nagai