Patents by Inventor Akira Uemori

Akira Uemori 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).

  • Video data playback system using effective scheme for producing coded video data for fast playback mode
    Patent number: 5887110
    Abstract: A video data playback system for reproducing requested video data by switching coded video data to be reproduced between normal playback coded video data and fast playback coded video data according to a requested playback mode, where the normal playback coded video data are encoded by a first video coding scheme using both intra-frame coding and inter-frame coding, while the fast playback coded video data are encoded by a second video coding scheme using only intra-frame coding and having a playback bit rate and a frame rate identical to those of the normal playback coded video data. The normal playback coded video data can be obtained by encoding the original video data first, then the fast playback coded video data can be obtained by encoding selectively decoded normal playback coded video data. Alternatively, the normal and fast playback coded video data can be obtained by synchronizing start and end of encoding by the first video coding scheme and encoding by the second video coding scheme.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: March 23, 1999
    Assignee: Nippon Telegraph & Telephone Corp.
    Inventors: Hideki Sakamoto, Tomoaki Kawaguchi, Hideharu Suzuki, Tatsuo Mori, Hiroyuki Kimiyama, Kazutoshi Nishimura, Kouichi Itoh, Mitsuru Maruyama, Hiroshi Sugiyama, Akira Uemori, Kazuo Okada