Patents by Inventor Jui Liang

Jui Liang 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).

  • Digital filter
    Patent number: 7120655
    Abstract: Methods and apparatus of signal processing are described. In a method according to one embodiment, a high-frequency region of a digital signal is detected. In response to the detecting, the high-frequency content of the digitized signal is increased in at least a portion of that region.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: October 10, 2006
    Assignee: Integrated Device Technology, Inc.
    Inventors: Jui Liang, Gonghai Ren
  • Digital filter
    Publication number: 20030200241
    Abstract: Methods and apparatus of signal processing are described. In a method according to one embodiment, a high-frequency region of a digital signal is detected. In response to the detecting, the high-frequency content of the digitized signal is increased in at least a portion of that region.
    Type: Application
    Filed: January 27, 2003
    Publication date: October 23, 2003
    Inventors: Jui Liang, Gonghai Ren
  • Frame rate control system and method
    Publication number: 20030156639
    Abstract: A system and method of controlling the frame rate of signals for a video display device may employ a first-in/first-out (FIFO) frame rate control strategy for analog image source signals in conjunction with LCD panels. The disclosed system and method may dynamically adjust the frequency at which data are read out of a FIFO buffer, accounting for any frame rate differences between the source image data signal and the destination display device. Additionally, resolution of the output image may be adjusted to conform with the capabilities of the display apparatus.
    Type: Application
    Filed: February 28, 2002
    Publication date: August 21, 2003
    Inventor: Jui Liang
  • Multiphase clock synthesizer having a plurality of phase shifted inputs to a plurality of phase comparators in a phase locked loop
    Patent number: 5550515
    Abstract: A phase-locked loop wherein the output signal is effectively sampled at an increased rate from conventional phase-locked loops, allowing for a greater increase in the ratio of the output frequency to the input frequency while reducing the possibility of jitter or failure to lock. Multiple differently phased reference signals and correspondingly phased feedback signals are produced. The comparison of the feedback signals and the reference signals produce multiple error signals which are combined to adjust the oscillation frequency of the voltage-controlled oscillator.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: August 27, 1996
    Assignee: Opti, Inc.
    Inventors: Jui Liang, Ramon Co, Ann Gui