Patents by Inventor Kenichi Ushie

Kenichi Ushie 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).

  • Disconnection detecting circuit and disconnection detecting method by using capacitor
    Patent number: 7956789
    Abstract: A disconnection detecting method includes charging a capacitor by connecting a node of the capacitor to a first power source line supplied with a first power source potential, connecting the node of the capacitor to an input terminal, after the node of the capacitor is disconnected from the first power source line, and converting a first value on the node to a first digital data. The method further includes discharging the capacitor by connecting the node of the capacitor to a first power source line supplied with a second power source potential, after the node is disconnected from the input terminal, connecting the node of the capacitor to the input terminal, after the node of the capacitor is disconnected from the second power source line, and converting a second value on the node to a second digital data.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: June 7, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Kenichi Ushie
  • Disconnection detecting circuit and disconnection detecting method by using capacitor
    Publication number: 20100245141
    Abstract: A disconnection detecting method includes charging a capacitor by connecting a node of the capacitor to a first power source line supplied with a first power source potential, connecting the node of the capacitor to an input terminal, after the node of the capacitor is disconnected from the first power source line, and converting a first value on the node to a first digital data. The method further includes discharging the capacitor by connecting the node of the capacitor to a first power source line supplied with a second power source potential, after the node is disconnected from the input terminal, connecting the node of the capacitor to the input terminal, after the node of the capacitor is disconnected from the second power source line, and converting a second value on the node to a second digital data.
    Type: Application
    Filed: March 30, 2010
    Publication date: September 30, 2010
    Applicant: NEC Electronics Corporation
    Inventor: Kenichi Ushie