Patents by Inventor Hidetsugu Suzuki

Hidetsugu Suzuki 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: 4739418
    Abstract: An information signal recording disc is recorded with a stereoscopic television signal comprising a stereoscopic video signal and audio signals. The disc comprises a spiral track made up of a plurality of track turns, and video signals related to four fields are recorded on each of the plurality of track turns. Each track turn is time-sequentially recorded with right-eye and left-eye video signals of mutually different field numbers out of the right-eye and left-eye video signals of a simultaneous stereoscopic television signal in a sequence of field numbers together with audio signals, so that the right-eye video signal and the left-eye video signal are respectively recorded for a time period of two fields in each track turn. The right-eye and left-eye video signals related to identical fields are recorded side by side to each other in two mutually adjacent track turns.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: April 19, 1988
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Makoto Iwahara, Kiyoaki Suzuki, Hidetsugu Suzuki, Atsushi Sakamoto
  • Patent number: 4672434
    Abstract: A stereoscopic television system and apparatus comprise a memory for storing right-eye information related to odd and even fields and left-eye information related to the odd and even fields, a circuit for producing a main scanning direction synchronizing signal for synchronizing a scanning in a vertical direction of a reproduced picture and a sub scanning direction synchronizing signal for synchronizing a scanning in a horizontal direction of the reproduced picture, where the sub scanning direction synchronizing signal has a frequency which is m.+-.
    Type: Grant
    Filed: March 11, 1986
    Date of Patent: June 9, 1987
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Kiyoaki Suzuki, Makoto Iwahara, Hidetsugu Suzuki, Atsushi Sakamoto
  • Patent number: 4550797
    Abstract: A loudspeaker diaphragm comprising a molded, sintered ceramic body is described. The body is made of ceramic crystalline particles whose maximum size is below 1/5 time a thickness of the body which is in the form of a dome or cone. The dome- or cone-shaped diaphragm may have a flange along an opening side thereof in order to prevent deformation as may occur during firing.
    Type: Grant
    Filed: January 17, 1984
    Date of Patent: November 5, 1985
    Assignees: Victor Company of Japan, Mitsubishi Mining & Cement Co., Ltd.
    Inventors: Kiyoaki Suzuki, Hidetsugu Suzuki, Katsuhiro Onuki, Isami Nomoto, Yoshiaki Fukuda, Takeshi Sato
  • Patent number: 4295006
    Abstract: According to a first aspect of the invention, a diffraction compensation circuit is employed to relatively raise the level of an input electrical audio signal at low frequencies. A speaker is driven in response to the output signals of the diffraction compensation circuit, thereby offsetting a diffraction characteristic inherent in a speaker enclosure. According to a second aspect of the invention, the radiation surface of the vibrating member of a speaker is made flat. The speaker is installed in an enclosure in such a manner that the flat surface of the vibrating member is flush with the exterior surface of the enclosure, thereby reproducing an audio signal with high fidelity.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: October 13, 1981
    Assignee: Victor Company of Japan, Limited
    Inventors: Mitsuaki Tanaka, Hidetsugu Suzuki