Patents Assigned to Realtex Semiconductor Corp.
  • Phase-frequency detection with no dead zone
    Patent number: 6157218
    Abstract: The present invention relates to a phase detector with no dead zone comprising two detecting means and two control logic circuits. The phase-frequency detector employs the control logic circuits to proceed with reset operation of the detecting means such that the existence of a phase difference between the reference clock signal and the feedback clock signal prevents the misdetection of the up, down signals (output signal), and the up, down signals will not be simultaneously at "1".
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: December 5, 2000
    Assignee: Realtex Semiconductor Corp.
    Inventor: Mu-jung Chen