Patents by Inventor Shouichi Isogai

Shouichi Isogai 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).

  • Method of selecting one of dual antennas
    Patent number: 8010056
    Abstract: A wireless headphone assembly has left and right speakers attached to ends of a headphone body, and at least two antennas, e.g., one located at each speaker. Reception can be improved by selecting a “best” one of the antennas based on a quality metric.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: August 30, 2011
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Andrew Xavier Estrada, Shouichi Isogai
  • METHOD OF SELECTING ONE OF DUAL ANTENNAS
    Publication number: 20090185702
    Abstract: A wireless headphone assembly has left and right speakers attached to ends of a headphone body, and at least two antennas, e.g., one located at each speaker. Reception can be improved by selecting a “best” one of the antennas based on a quality metric.
    Type: Application
    Filed: April 1, 2009
    Publication date: July 23, 2009
    Inventors: Andrew Xavier Estrada, Shouichi Isogai
  • Method of selecting one of dual antennas
    Patent number: 7539517
    Abstract: A wireless headphone assembly has left and right speakers attached to ends of a headphone body, and at least two antennas, e.g., one located at each speaker. Reception can be improved by selecting a “best” one of the antennas based on a quality metric.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: May 26, 2009
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Andrew Xavier Estrada, Shouichi Isogai
  • Method of selecting one of dual antennas
    Publication number: 20070173200
    Abstract: A wireless headphone assembly has left and right speakers attached to ends of a headphone body, and at least two antennas, e.g., one located at each speaker. Reception can be improved by selecting a “best” one of the antennas based on a quality metric.
    Type: Application
    Filed: April 17, 2006
    Publication date: July 26, 2007
    Inventors: Andrew Estrada, Shouichi Isogai