Patents by Inventor Toshifumi YAMAOKA

Toshifumi YAMAOKA 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).

  • Semiconductor device and serial data transmission line system
    Patent number: 9722662
    Abstract: A semiconductor device and a serial data transmission line system have a reception circuit and an adaptive equalizer circuit. A supply source of a power supply supplied with the reception circuit is selected based on correction intensity of the correction value calculated by the adaptive equalizer circuit. When correction intensity of the correction value calculated by the adaptive equalizer circuit is not less than a threshold value, the supply source of the power supply supplied to the reception circuit and the adaptive equalizer circuit is switched, and a noise level of the power supply is reduced.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: August 1, 2017
    Assignee: Renesas Electronics Corporation
    Inventor: Toshifumi Yamaoka
  • Semiconductor Device and Serial Data Transmission Line System
    Publication number: 20150180535
    Abstract: A semiconductor device and a serial data transmission line system have a reception circuit and an adaptive equalizer circuit. A supply source of a power supply supplied with the reception circuit is selected based on correction intensity of the correction value calculated by the adaptive equalizer circuit. When correction intensity of the correction value calculated by the adaptive equalizer circuit is not less than a threshold value, the supply source of the power supply supplied to the reception circuit and the adaptive equalizer circuit is switched, and a noise level of the power supply is reduced.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 25, 2015
    Inventor: Toshifumi YAMAOKA