Patents by Inventor Hiroyasu Ikedo

Hiroyasu Ikedo 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: 6952595
    Abstract: A digital broadcast channel reception system and a portable terminal allow watching a digital broadcast on the terminal. In the examples, a receiver unit for receiving digital broadcasts transmits video data to a display unit, using its TX data manipulator, modulator, TX circuit, and antenna. The TX data manipulator manipulates the output from an OFDM demodulator into data to transmit from the TX circuit and appends error correction codes to the data. The modulator modulates the output from the TX data manipulator. A display unit for digital broadcast display receives video data transmitted from the receiver unit, using its antenna, TX/RX section, and modulator/demodulator. After error correction codes in the received signals are decoded by a TX/RX data manipulator, video data is extracted. After the video data is decoded by a MPEG4 decoder, a picture is output on the display.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: October 4, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Hiroyasu Ikedo, Takatoshi Shirosugi, Hiroyuki Mizukami, Ikuo Murata
  • Publication number: 20030072257
    Abstract: The invention provides a digital broadcast reception system that allows watching a digital broadcast on a mobile terminal and a portable terminal as a constituent part of such system.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 17, 2003
    Inventors: Hiroyasu Ikedo, Takatoshi Shirosugi, Hiroyuki Mizukami, Ikuo Murata
  • Patent number: 6195503
    Abstract: An image and sound recording/reproducing apparatus easy for use with a personal computer or the like, to record/reproduce image and sound compressed data, with ease and convenience in reproduction, editing operations and the like being taken into consideration. A still picture and a sound are inputted into an image input terminal and a sound input terminal, respectively. The still picture inputted is compressed in accordance with the JPEG system by a JPEG codec, and is recorded in a recording device through a multiplex separation unit as still picture compressed data. Also, sound inputted is compressed in accordance with the MPEG audio system by a MPEG codec, and is recorded in the recording device through the multiplex separation unit as sound compressed data. A controller controls the compression process and recording through a control signal through a mode selection signal input terminal or a shutter trigger input terminal.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: February 27, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Hiroyasu Ikedo, Hiroyasu Otsubo, Naoki Yamamoto