Patents by Inventor Noriyoshi Odaki

Noriyoshi Odaki 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).

  • Power detector and wireless device
    Patent number: 8385860
    Abstract: According to one embodiment, a power detector includes a reference voltage generator, a square signal generator, a detection circuit, and an output circuit. The reference voltage generator is configured to receive a bias voltage and generate a reference voltage. The square signal generator is configured to receive a voltage having a high frequency input voltage superimposed on the bias voltage and output a signal including the reference voltage, a voltage of a square of the high frequency input voltage, and a high-frequency signal. The detection circuit has a first lowpass filter, a first operational amplifier configured to amplify error between an output voltage of the first lowpass filter and the reference voltage and output the error as a control voltage, and a feedback transistor configured to feed a feedback current according to the control voltage back to an output terminal of the square signal generator.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: February 26, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Teraguchi, Masahiro Hasegawa, Noriyoshi Odaki, Shigehiro Hosoi, Takahiro Nakagawa
  • POWER DETECTOR AND WIRELESS DEVICE
    Publication number: 20120008669
    Abstract: According to one embodiment, a power detector includes a reference voltage generator, a square signal generator, a detection circuit, and an output circuit. The reference voltage generator is configured to receive a bias voltage and generate a reference voltage. The square signal generator is configured to receive a voltage having a high frequency input voltage superimposed on the bias voltage and output a signal including the reference voltage, a voltage of a square of the high frequency input voltage, and a high-frequency signal. The detection circuit has a first lowpass filter, a first operational amplifier configured to amplify error between an output voltage of the first lowpass filter and the reference voltage and output the error as a control voltage, and a feedback transistor configured to feed a feedback current according to the control voltage back to an output terminal of the square signal generator.
    Type: Application
    Filed: March 22, 2011
    Publication date: January 12, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takayuki Teraguchi, Masahiro Hasegawa, Noriyoshi Odaki, Shigehiro Hosoi, Takahiro Nakagawa