Patents by Inventor Ueda Kimio

Ueda Kimio 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).

  • Recovery of clock and data using quadrature clock signals
    Patent number: 7697652
    Abstract: A quarter-rate phase detector can include: four latches controllable to latch, at different times according to quadrature clock signals, respectively, data received by the phase detector so as to form latched signals; an error circuit to combine corresponding ones of the latched signals, respectively, resulting in a plurality of intermediate signals; and a multiplexing unit to selectively output the intermediate signals as a phase error signal. A related method can have similar features.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: April 13, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-Seung Jeong, Ueda Kimio
  • Recovery of clock and data using quadrature clock signals
    Publication number: 20040258187
    Abstract: A quarter-rate phase detector can include: four latches controllable to latch, at different times according to quadrature clock signals, respectively, data received by the phase detector so as to form latched signals; an error circuit to combine corresponding ones of the latched signals, respectively, resulting in a plurality of intermediate signals; and a multiplexing unit to selectively output the intermediate signals as a phase error signal. A related method can have similar features.
    Type: Application
    Filed: February 18, 2004
    Publication date: December 23, 2004
    Inventors: Dae-Seung Jeong, Ueda Kimio