Patents by Inventor Eiji Sudou

Eiji Sudou 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).

  • Signal processing circuit and signal processing method
    Patent number: 8055289
    Abstract: A signal processing circuit includes a demodulator to demodulate a received signal and output a demodulated signal, a filter to output a signal corresponding to a prescribed frequency component of the demodulated signal, a blending unit to blend the demodulated signal with an output signal of the filter at a prescribed blending ratio, an electric field strength change amount detection unit to detect a change in electric field strength and output an electric field strength change amount, and a blending ratio determination unit to determine the prescribed blending ratio according to the electric field strength change amount.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: November 8, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Eiji Sudou
  • SIGNAL PROCESSING CIRCUIT AND SIGNAL PROCESSING METHOD
    Publication number: 20080008332
    Abstract: A signal processing circuit includes a demodulator to demodulate a received signal and output a demodulated signal, a filter to output a signal corresponding to a prescribed frequency component of the demodulated signal, a blending unit to blend the demodulated signal with an output signal of the filter at a prescribed blending ratio, an electric field strength change amount detection unit to detect a change in electric field strength and output an electric field strength change amount, and a blending ratio determination unit to determine the prescribed blending ratio according to the electric field strength change amount.
    Type: Application
    Filed: July 6, 2007
    Publication date: January 10, 2008
    Applicant: NEC Electronics Corporation
    Inventor: Eiji SUDOU