Patents by Inventor Fusae Sekine

Fusae Sekine 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).

  • Phase synchronization circuit
    Patent number: 8102158
    Abstract: A phase synchronization circuit comprising: a charging/discharging-circuit to charge/discharge a capacitor in accordance with a drive-signal, charging and/or discharging current-values of the capacitor being settable; an oscillation-circuit to output an oscillation-signal having a frequency corresponding to a charging-voltage; a drive-circuit to output as the drive-signal a first drive-signal for matching charging and discharging periods when a phase-difference and the oscillation-signal is smaller than a predetermined phase-difference and reducing the phase-difference when the phase-difference is greater than the predetermined phase-difference; and a setting-circuit to receive setting-data for setting the charging and/or discharging current-values, hold the setting-data, and set the charging and/or discharging current-values, based on the setting-data, the drive-circuit outputting as the drive-signal a second drive-signal for matching charging and discharging periods, when receiving an adjustment-instruction
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: January 24, 2012
    Assignees: Semiconductor Components Industries, LLC, Sanyo Semiconductor Co., Ltd.
    Inventors: Fusae Sekine, Naoyuki Ogino
  • Phase Synchronization Circuit
    Publication number: 20090243557
    Abstract: A phase synchronization circuit comprising: a charging/discharging-circuit to charge/discharge a capacitor in accordance with a drive-signal, charging and/or discharging current-values of the capacitor being settable; an oscillation-circuit to output an oscillation-signal having a frequency corresponding to a charging-voltage; a drive-circuit to output as the drive-signal a first drive-signal for matching charging and discharging periods when a phase-difference and the oscillation-signal is smaller than a predetermined phase-difference and reducing the phase-difference when the phase-difference is greater than the predetermined phase-difference; and a setting-circuit to receive setting-data for setting the charging and/or discharging current-values, hold the setting-data, and set the charging and/or discharging current-values, based on the setting-data, the drive-circuit outputting as the drive-signal a second drive-signal for matching charging and discharging periods, when receiving an adjustment-instruction
    Type: Application
    Filed: March 25, 2009
    Publication date: October 1, 2009
    Applicants: Sanyo Electric Co., Ltd., Sanyo Semiconductor Co., Ltd.
    Inventors: Fusae Sekine, Naoyuki Ogino