Patents Represented by Attorney Panitch, et al.
  • Patent number: 7792235
    Abstract: A phase-locked loop includes a sample selector configured to select a set of samples from an oversampled portion of a data signal, a dynamic phase decision control configured to indicate whether a predetermined number of edges is present in the set of samples, and a phase detector configured to determine a skew condition and a direction of the skew condition of the set of samples based on the indication of the dynamic phase decision control. The phase detector is configured to determine a skew condition based on a relation between a threshold and a number of skew errors detected in the set of samples. A value of the threshold is selected according to the indication of the dynamic phase decision control. A lower value of the threshold is selected according to an indication of the dynamic phase decision control that only one edge is present in the set of samples.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: September 7, 2010
    Assignee: Integrated Device Technology, Inc.
    Inventor: Sen-Jung Wei