Patents by Inventor Motoyuki Uchida

Motoyuki Uchida 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 power dynamic range compressing circuit and power amplifier using the same
    Publication number: 20010006359
    Abstract: In an input signal power dynamic range compressing circuit, an input signal is distributed by a directional coupler to a linear signal transfer path and a compressing signal generating path, and in the compressing signal generating path a compressing signal, which keeps the peak-to-average-power ratio of the input signal below a predetermined value, is generated from the input signal. The compressing signal is combined by a power combiner with the input signal having passed through the linear signal transfer path.
    Type: Application
    Filed: December 28, 2000
    Publication date: July 5, 2001
    Applicant: NTT DoCoMo, Inc.
    Inventors: Yasunori Suzuki, Motoyuki Uchida, Toshio Nojima