Patents by Inventor Makoto Soraoka

Makoto Soraoka 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 SUPPLY VOLTAGE TRANSITION COMPARISON CIRCUIT, POWER SUPPLY VOLTAGE TRANSITION COMPARISON METHOD, AND SEMICONDUCTOR INTEGRATED CIRCUIT
    Publication number: 20160079972
    Abstract: A power supply voltage transition comparison circuit includes a comparator evaluation voltage setting circuit that generates a divided voltage of a power supply voltage; a comparator that compares a reference voltage with the divided voltage; a voltage evaluation circuit that evaluates the power supply voltage based on a result of the comparison; and an evaluation voltage setting value output circuit that changes a ratio between the power supply voltage and the divided voltage based on a result of an evaluation of the power supply voltage.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 17, 2016
    Inventor: Makoto Soraoka
  • Power supply voltage transition comparison circuit, power supply voltage transition comparison method, and semiconductor integrated circuit
    Patent number: 9214930
    Abstract: The power supply voltage transition comparison circuit includes a comparator evaluation voltage setting circuit, a comparator, a voltage evaluation circuit, and an evaluation voltage setting value output circuit. The comparator evaluation voltage setting circuit generates a divided voltage of one of a power supply voltage and a reference voltage. The comparator compares the other of the power supply voltage and the reference voltage with the divided voltage. The voltage evaluation circuit evaluates the power supply voltage based on a result of a comparison between the other voltage and the divided voltage. The evaluation voltage setting value output circuit changes a ratio between the one voltage and the divided voltage based on a result of an evaluation of the power supply voltage.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: December 15, 2015
    Assignee: Renesas Electronics Corporation
    Inventor: Makoto Soraoka
  • POWER SUPPLY VOLTAGE TRANSITION COMPARISON CIRCUIT, POWER SUPPLY VOLTAGE TRANSITION COMPARISON METHOD, AND SEMICONDUCTOR INTEGRATED CIRCUIT
    Publication number: 20150022240
    Abstract: The power supply voltage transition comparison circuit includes a comparator evaluation voltage setting circuit, a comparator, a voltage evaluation circuit, and an evaluation voltage setting value output circuit. The comparator evaluation voltage setting circuit generates a divided voltage of one of a power supply voltage and a reference voltage. The comparator compares the other of the power supply voltage and the reference voltage with the divided voltage. The voltage evaluation circuit evaluates the power supply voltage based on a result of a comparison between the other voltage and the divided voltage. The evaluation voltage setting value output circuit changes a ratio between the one voltage and the divided voltage based on a result of an evaluation of the power supply voltage.
    Type: Application
    Filed: June 12, 2014
    Publication date: January 22, 2015
    Inventor: Makoto Soraoka