Patents by Inventor Pedro W. Lo

Pedro W. Lo 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).

  • Signal timing adjustment circuit with external resistor
    Patent number: 6882195
    Abstract: A semiconductor device includes an external resistor for establishing a delay of a signal relative to another signal in the device. The resistor may be external to a buffer, such as a zero-delay buffer, that receives an input signal generates one or more output signals that relate to the input signal. The delay may be introduced either before or after the buffer.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: April 19, 2005
    Assignee: ICS Technologies, Inc.
    Inventors: Dinh Bui, Paul W. Self, Pedro W. Lo, Satoshi Mukaida
  • Signal timing adjustment circuit with external resistor
    Publication number: 20040008065
    Abstract: A semiconductor device includes an external resistor for establishing a delay of a signal relative to another signal in the device. The resistor may be external to a buffer, such as a zero-delay buffer, that receives an input signal generates one or more output signals that relate to the input signal. The delay may be introduced either before or after the buffer.
    Type: Application
    Filed: June 27, 2003
    Publication date: January 15, 2004
    Inventors: Dinh Bui, Paul W. Self, Pedro W. Lo, Satoshi Mukaida
  • Modulation of a phase locked loop for spreading the spectrum of an output clock signal
    Patent number: 6046646
    Abstract: Apparatus and methods for controlling the frequency spectrum of a clock signal, for example, to reduce EMI emissions. A PLL circuit receives a reference signal and generates an output clock signal. A modulating circuit is coupled to the PLL and generates a modulating signal. The PLL receives the modulating signal and accordingly varies the frequency spectrum of the output clock signal.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: April 4, 2000
    Inventors: Pedro W. Lo, Gregory J. Richmond