Patents by Inventor Hikari Hashimoto

Hikari Hashimoto 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).

  • Apparatus for supplying control codes to sound field reproduction apparatus
    Patent number: 5164840
    Abstract: Control codes for controlling processing of an audio signal by a sound field variation circuit to produce desired sound fields are recorded on a monaural track of a video tape concurrent with recording of video and audio signals, and can thereby be subsequently played back for producing sound fields which are respectively synchronized with video images.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: November 17, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akihisa Kawamura, Masaharu Matsumoto, Mitsuhiko Serikawa, Ryo Tagami, Katsuaki Sato, Hiroko Yoshida, Hikari Hashimoto
  • Apparatus for changing a sound field
    Patent number: 5023913
    Abstract: An apparatus for changing a sound field, comprising at least two signal processing means, which can smoothly and continuously switch a sound field into an arbitrary sound field without a break of signals by alternately switching one of the signal processing means into the other.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: June 11, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaharu Matsumoto, Katsuaki Satoh, Seiichi Ishikawa, Mitsuhiko Serikawa, Akihisa Kawamura, Hikari Hashimoto