Patents by Inventor Paul W. Self

Paul W. Self 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).

  • Differential clock signal detection circuit
    Patent number: 6977529
    Abstract: A semiconductor integrated circuit includes a first clock input and a second clock input to receive elements of a differential clock signal. Each clock signal element has a logic state. The circuit generates an output activation signal that depends on the states of the differential clock input signals. Operation of the circuit does not require detection of a frequency of the differential clock signal.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: December 20, 2005
    Assignee: ICS Technologies, Inc.
    Inventor: Paul W. Self
  • 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
  • Differential clock signal detection circuit
    Publication number: 20030164720
    Abstract: A semiconductor integrated circuit includes a first clock input and a second clock input to receive elements of a differential clock signal. Each clock signal element has a logic state. The circuit generates an output activation signal that depends on the states of the differential clock input signals. Operation of the circuit does not require detection of a frequency of the differential clock signal.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 4, 2003
    Inventor: Paul W. Self
  • High speed, power supply independent CMOS voltage controlled ring oscillator with level shifting circuit
    Patent number: 5175512
    Abstract: A high speed voltage controlled oscillator (VCO) providing for low sensitivity to the noise on the integrated circuit's (IC) power supply. The VCO circuit creates a supply voltage for a ring oscillator independent of the IC's power supply thereby controlling the frequency of operation independent of variations on the IC's power supply. A high speed CMOS level shifting circuit provides for converting outputs of the VCO with low logic level and varying frequencies to a signal with a full CMOS logic level and low duty cycle distortion.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: December 29, 1992
    Assignee: Avasem Corporation
    Inventor: Paul W. Self