Patents by Inventor Kirk Burton Ashby

Kirk Burton Ashby 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).

  • Transconductance amplifier with wideband noise filtering
    Patent number: 6150885
    Abstract: There is disclosed a transconductance amplifier receives a voltage input and provides a current output. The transconductance amplifier includes a current mirror having a lowpass filter between transistors implementing the current mirror.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: November 21, 2000
    Assignee: Lucent Technologies Inc.
    Inventors: Kirk Burton Ashby, Brian K. Horton
  • Single sideband double quadrature modulator
    Patent number: 5861781
    Abstract: A method of and apparatus for effecting single sideband modulation which mixes and sums the quadrature and in-phase components of a baseband signal with the in-phase and quadrature components of an intermediate frequency (IF) signal to form in-phase and quadrature components of a sum signal having a frequency equal to the sum of the frequencies of the baseband and intermediate frequency signals and which mixes and sums the quadrature and in-phase components of an RF carrier signal with the in-phase and quadrature components of the sum signal to form a single-sideband signal.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: January 19, 1999
    Assignee: Lucent Technologies Inc.
    Inventor: Kirk Burton Ashby