Patents by Inventor Masaaki Higashida

Masaaki Higashida 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).

  • Patent number: 5289322
    Abstract: An apparatus is described for rearranging the relative positions of data samples of a digital video signal within each field of the video signal, for use in a digital VTR in which alternate samples are separated into two different recording channels to be recorded on different tracks of a recording medium. The apparatus includes an intra-line shuffling circuit and a field memory into which output data from the shuffling circuit are written, such that adjacent samples which are of the same channel and are located mutually adjacent in the same line of the video signal are read out from the memory and recorded on respectively different tracks of the recording medium, thereby ensuring that if a sample is lost due to a read error, the adjacent samples of the same channel will always be available for use in interpolation processing to compensate for the lost sample.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: February 22, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaaki Higashida, Keiichi Ishida, Toshiaki Koya, Kunio Suesada