Patents by Inventor Takehiko KAN

Takehiko KAN 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).

  • Reset device, circuit device, and resetting method
    Patent number: 11063588
    Abstract: A reset device includes a power-on reset (POR) circuit configured to output a reset signal to reset a circuit part to an initial state when supply voltage is lower than a threshold level, a first switch provided in a path connecting a first line to supply the supply voltage to the circuit part and a second line to supply the supply voltage to the POR circuit, a second switch provided in a path connecting a signal line of the circuit part and the second line, and a control circuit configured to turn on the first switch and turn off the second switch in a normal mode, and to turn off the first switch and turn on the second switch in a test mode. The control circuit turns on the first switch and turns off the second switch in response to the reset signal being output from the POR circuit.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: July 13, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Hiroki Sato, Tomoyuki Sawataishi, Akira Shoji, Takehiko Kan
  • RESET DEVICE, CIRCUIT DEVICE, AND RESETTING METHOD
    Publication number: 20210203318
    Abstract: A reset device includes a power-on reset (POR) circuit configured to output a reset signal to reset a circuit part to an initial state when supply voltage is lower than a threshold level, a first switch provided in a path connecting a first line to supply the supply voltage to the circuit part and a second line to supply the supply voltage to the POR circuit, a second switch provided in a path connecting a signal line of the circuit part and the second line, and a control circuit configured to turn on the first switch and turn off the second switch in a normal mode, and to turn off the first switch and turn on the second switch in a test mode. The control circuit turns on the first switch and turns off the second switch in response to the reset signal being output from the POR circuit.
    Type: Application
    Filed: November 30, 2020
    Publication date: July 1, 2021
    Inventors: Hiroki SATO, Tomoyuki SAWATAISHI, Akira SHOJI, Takehiko KAN