Patents by Inventor Jyunichi Maehara

Jyunichi Maehara 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).

  • Voice communication apparatus
    Patent number: 8175867
    Abstract: A voice communication apparatus includes a communication portion that receives a plurality of frames including at least a first frame having first voice data and a second frame having second voice data subsequent to the first frame, the first voice data and the second voice data being encoded by a predetermined encoding system, a decoding portion that decodes the first voice data and the second voice data received by the communication portion, a buffer that retains the first voice data and the second voice data decoded by the decoding portion, a calculation portion that calculates an amplitude envelope based on the first voice data decoded by the decoding portion, and a controlling portion that judges whether or not the second voice data decoded by the decoding portion exceeds the amplitude envelope and corrects the second voice data that exceeds the amplitude envelope.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: May 8, 2012
    Assignee: Panasonic Corporation
    Inventors: Shinji Ikegami, Jyunichi Maehara, Noriaki Fukuoka, Toshihiro Tsukamoto
  • VOICE COMMUNICATION APPARATUS
    Publication number: 20090070105
    Abstract: A voice communication apparatus includes a communication portion that receives a plurality of frames including at least a first frame having first voice data and a second frame having second voice data subsequent to the first frame, the first voice data and the second voice data being encoded by a predetermined encoding system, a decoding portion that decodes the first voice data and the second voice data received by the communication portion, a buffer that retains the first voice data and the second voice data decoded by the decoding portion, a calculation portion that calculates an amplitude envelope based on the first voice data decoded by the decoding portion, and a controlling portion that judges whether or not the second voice data decoded by the decoding portion exceeds the amplitude envelope and corrects the second voice data that exceeds the amplitude envelope.
    Type: Application
    Filed: August 5, 2008
    Publication date: March 12, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Shinji IKEGAMI, Jyunichi MAEHARA, Noriaki FUKUOKA, Toshihiro TSUKAMOTO