Patents by Inventor Dave Yates

Dave Yates 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).

  • High dynamic range compact mixer output stage for a wireless receiver
    Patent number: 7493097
    Abstract: A mixer is disclosed having an output stage with an amplifier or gain device configured in a feedback loop to maintain a virtual ground at the input to the gain device. The gain device provides significant dynamic range, gain, and the appropriate impedance matching to insure a low noise output signal of a desired magnitude. Use of an amplifying output stage removes the dependence between mixer gain and mixer configuration, such as mixer bias resistor value, while concurrently overcome undesirable flicker noise that results from use of active devices in the mixer bias structure. A stable virtual ground at the mixer output and gain device input provides linearity over frequency. The gain device may comprises an operational amplifier or trans-resistance/trans-conductance device.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: February 17, 2009
    Assignee: Skyworks Solutions, Inc.
    Inventors: Aly M. Ismail, Geoffrey Hatcher, Edward Youssoufian, Dave Yates
  • High dynamic range compact mixer output stage for a wireless receiver
    Publication number: 20070010230
    Abstract: A mixer is disclosed having an output stage with an amplifier or gain device configured in a feedback loop to maintain a virtual ground at the input to the gain device. The gain device provides significant dynamic range, gain, and the appropriate impedance matching to insure a low noise output signal of a desired magnitude. Use of an amplifying output stage removes the dependence between mixer gain and mixer configuration, such as mixer bias resistor value, while concurrently overcome undesirable flicker noise that results from use of active devices in the mixer bias structure. A stable virtual ground at the mixer output and gain device input provides linearity over frequency.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 11, 2007
    Inventors: Aly Ismail, Geoffrey Hatcher, Edward Youssoufian, Dave Yates