Patents by Inventor Kenji Hiromoto

Kenji Hiromoto 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).

  • Oscillator and PLL circuit using the same
    Patent number: 6798300
    Abstract: An oscillator having a modulation function capable of controlling a frequency by adding a signal to a control signal and a PLL circuit using the same, wherein the oscillator forms a ring comprised of a plurality of cascade connected delay stages controlled in delay value by an inverter or a buffer and a control signal and forming a closed loop by an inverted phase and comprises a modulation function modulating an oscillation frequency by adding a modulation signal to the control signal in a part of the plurality of delay stages.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: September 28, 2004
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Masayuki Katakura, Yoshihiro Komatsu, Kenji Hiromoto, Tsuyoshi Kousaka, Ping Fai Ben Li
  • Oscillator and PLL circuit using the same
    Publication number: 20030218511
    Abstract: An oscillator having a modulation function capable of controlling a frequency by adding a signal to a control signal and a PLL circuit using the same, wherein the oscillator forms a ring comprised of a plurality of cascade connected delay stages controlled in delay value by an inverter or a buffer and a control signal and forming a closed loop by an inverted phase and comprises a modulation function modulating an oscillation frequency by adding a modulation signal to the control signal in a part of the plurality of delay stages.
    Type: Application
    Filed: February 25, 2003
    Publication date: November 27, 2003
    Applicants: Sony Corporation, a Japanese corporation, Sony Electronics Inc, a Delaware corporation
    Inventors: Masayuki Katakura, Yoshihiro Komatsu, Kenji Hiromoto, Tsuyoshi Kousaka, Ping Fai Ben Li