Patents by Inventor Kazuhito EBISAWA

Kazuhito EBISAWA 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
    Patent number: 10671467
    Abstract: The aim of the present disclosure is to provide a watchdog timer that can perform a fault diagnosis during the actual use of a semiconductor device. In a semiconductor device provided with a watchdog timer, the watchdog timer includes a counter; a counter control circuit that changes a count value of the counter to a desired value in the refresh period of the count value; and a fault diagnosis module. The fault diagnosis module includes a suppressing circuit that suppresses generation of a reset signal to the exterior of the watchdog timer in the refresh period; and a holding circuit that holds the reset signal.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: June 2, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kazuhito Ebisawa, Yukihiro Kishida
  • SEMICONDUCTOR DEVICE
    Publication number: 20180181457
    Abstract: The aim of the present disclosure is to provide a watchdog timer that can perform a fault diagnosis during the actual use of a semiconductor device. In a semiconductor device provided with a watchdog timer, the watchdog timer includes a counter; a counter control circuit that changes a count value of the counter to a desired value in the refresh period of the count value; and a fault diagnosis module. The fault diagnosis module includes a suppressing circuit that suppresses generation of a reset signal to the exterior of the watchdog timer in the refresh period; and a holding circuit that holds the reset signal.
    Type: Application
    Filed: December 1, 2017
    Publication date: June 28, 2018
    Applicant: Renesas Electronics Corporation
    Inventors: Kazuhito EBISAWA, Yukihiro KISHIDA