Patents by Inventor Naoto Kinjoh

Naoto Kinjoh 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).

  • Picture coding and decoding apparatus using vector quantization
    Patent number: 5010401
    Abstract: An interframe video data coding and decoding apparatus utilizes a differential amplitude suppression circuit in combination with a block encoder and a motion detector to non-linearly suppress amplitude values of interframe differential block data based on a motion detection threshold value determined by an encoding control circuit. The determined threshold value is based on the amount of encoded data being stored in a transmission buffer memory. The suppressed amplitude differential block data is added to corresponding blocks in a frame memory to update the contents of the frame memory during each frame of input video data. In another embodiment, vector quantization encoders are utilized to transmit a motion vector index with encoded frame differential data.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: April 23, 1991
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tokumichi Murakami, Kohtaro Asai, Koh Kamizawa, Masami Nishida, Eizo Yamazaki, Atsushi Itoh, Naoto Kinjoh
  • Picture coding and decoding apparatus using vector quantization
    Patent number: RE35414
    Abstract: An interframe video data coding and decoding apparatus utilizes a differential amplitude suppression circuit in combination with a block encoder and a motion detector to non-linearly suppress amplitude values of interframe differential block data based on a motion detection threshold value determined by an encoding control circuit. The determined threshold value is based on the amount of encoded data being stored in a transmission buffer memory. The suppressed amplitude differential block data is added to corresponding blocks in a frame memory to update the contents of the frame memory during each frame of input video data. In another embodiment, vector quantization encoders are utilized to transmit a motion vector index with encoded frame differential data.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: December 31, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tokumichi Murakami, Kohtaro Asai, Koh Kamizawa, Masami Nishida, Eizo Yamazaki, Atsushi Itoh, Naoto Kinjoh