Patents by Inventor John Tryhub

John Tryhub 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 tuning with variable intermediate frequency for image rejection and methods
    Patent number: 9184776
    Abstract: In a method and apparatus for operating a super-heterodyne receiver, a tuning circuit has a local oscillator for frequency shifting a desired channel to a selected frequency and a controller for controlling the local oscillator. The controller determines for each of a number of identified channels, whether an image signal is present at frequencies in the spectrum that when tuned to a first selected frequency interfere, and is operable to select a modified selected frequency at which interference between the image signal and the identified channel is reduced.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: November 10, 2015
    Inventors: John Tryhub, Lance Greggain, Gary Cheng, Stephen Jantzi
  • SIGNAL TUNING WITH VARIABLE INTERMEDIATE FREQUENCY FOR IMAGE REJECTION AND METHODS
    Publication number: 20110171919
    Abstract: In a method and apparatus for operating a super-heterodyne receiver, a tuning circuit has a local oscillator for frequency shifting a desired channel to a selected frequency and a controller for controlling the local oscillator. The controller determines for each of a number of identified channels, whether an image signal is present at frequencies in the spectrum that when tuned to a first selected frequency interfere, and is operable to select a modified selected frequency at which interference between the image signal and the identified channel is reduced.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 14, 2011
    Inventors: John Tryhub, Lance Greggain, Gary Cheng, Stephen Jantzi
  • LCD blur reduction through frame rate control
    Patent number: 7495647
    Abstract: Reducing fast motion artifacts in an LCD panel by receiving a video stream at a first frame rate which is then downsampled to a second frame rate. The downsampled video stream is then upsampled to a third frame rate and a voltage is applied to a pixel element such that the pixel element transitions from a first pixel value to a predetermined second pixel value within a period of time consistent with the third frame rate.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: February 24, 2009
    Assignee: Genesis Microchip Inc.
    Inventors: John Tryhub, Steve Selby
  • LCD blur reduction through frame rate control
    Publication number: 20050285815
    Abstract: Reducing fast motion artifacts in an LCD panel by receiving a video stream at a first frame rate which is then downsampled to a second frame rate. The downsampled video stream is then upsampled to a third frame rate and a voltage is applied to a pixel element such that the pixel element transitions from a first pixel value to a predetermined second pixel value within a period of time consistent with the third frame rate.
    Type: Application
    Filed: December 22, 2004
    Publication date: December 29, 2005
    Inventors: John Tryhub, Steve Selby