Patents by Inventor Kazuya Ikeda

Kazuya Ikeda 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).

  • Voltage level detecting circuit
    Patent number: 5378936
    Abstract: A power supply voltage level detecting circuit includes a reference voltage generating circuit for generating a constant reference voltage independent of a power supply voltage, a to-be-compared voltage generating circuit for generating a voltage to be compared changing dependent upon the power supply voltage, a current mirror type differentially amplifying circuit for amplifying differentially the reference voltage and the voltage to be compared, and a determining circuit for generating a level detecting signal indicating whether or not the power supply voltage has attained a predetermined level in accordance with an output of the differentially amplifying circuit. The to-be-compared voltage generating circuit generates the voltage to be compared by dropping the power supply voltage using the resistance division or the forward voltage drop of diode.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: January 3, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Nobuyuki Kokubo, Kazuya Ikeda