Patents by Inventor Gary W. Alleven

Gary W. Alleven 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).

  • Current sensing gated current source for delay reduction in a universal serial bus (USB) low speed output driver
    Patent number: 6124750
    Abstract: A circuit comprising a comparator circuit and a control circuit. The comparator circuit may be configured to present an output signal in response to (i) a reference current and (ii) a control current. The control circuit may be configured to generate the control current in response to (i) a first current source configured to present a fixed portion of the control current, (ii) a second current source configured to present a variable portion of the control current and (iii) a sense transistor. The second current source generally responds to a level of said control current.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: September 26, 2000
    Assignee: Cypress Semiconductor Corp.
    Inventors: Gary W. Alleven, Alex T. Siagian
  • Methods, circuits and devices for improving crossover performance and/or monotonicity, and applications of the same in a universal serial bus (USB) low speed output driver
    Patent number: 5929664
    Abstract: A circuit comprising a first driver circuit, a second driver circuit and a delay circuit. The first driver circuit may be configured to generate a first output signal and a control signal in response to a first input signal. The delay circuit may be configured to generate a delay signal in response to a second input signal and the control signal. The second driver circuit may be configured to generate a second output signal in response to the delay signal.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: July 27, 1999
    Inventor: Gary W. Alleven
  • Methods, circuits and devices for improving crossover performance and/or monotonicity, and applications of the same in a universal serial bus (USB) low speed output driver
    Patent number: 5912569
    Abstract: A circuit comprising a first driver circuit, a second driver circuit and a delay circuit. The first driver circuit may be configured to generate a first output signal and a control signal in response to a first input signal. The delay circuit may be configured to generate a delay signal in response to a second input signal and the control signal. The second driver circuit may be configured to generate a second output signal in response to the delay signal.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: June 15, 1999
    Assignee: Cypress Semiconductor Corp.
    Inventor: Gary W. Alleven
  • Methods, circuits and devices for improving crossover performance and/or monotonicity, and applications of the same in a universal serial bus (USB) low speed output driver
    Patent number: 5905389
    Abstract: A circuit comprising a first driver circuit, a second driver circuit and a delay circuit. The first driver circuit may be configured to generate a first output signal and a control signal in response to a first input signal. The delay circuit may be configured to generate a delay signal in response to a second input signal and the control signal. The second driver circuit may be configured to generate a second output signal in response to the delay signal.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: May 18, 1999
    Assignee: Cypress Semiconductor Corp.
    Inventor: Gary W. Alleven