Patents by Inventor Fung Ling Chiu

Fung Ling Chiu 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).

  • Pre and post filter automatic gain control with bounded pre-filter gain control
    Patent number: 8106709
    Abstract: An electronic circuit includes a first variable gain amplifier for amplifying a signal at an input to provide a first amplified signal; a filter receiving the first amplified signal to provide a filtered signal; a second variable gain amplifier for receiving and amplifying the filtered signal; a second gain control bock, to provide at least one gain control signal derived from the filtered signal, one of the at least one gain control signal to control the gain of the second variable gain amplifier; and a bounding block for receiving one of the at least one gain control signal from the second gain control block, and for generating therefrom a bounded gain control signal to control gain of the first variable gain amplifier.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: January 31, 2012
    Inventors: Steve Selby, Fung Ling Chiu, Gary Cheng
  • PRE AND POST FILTER AUTOMATIC GAIN CONTROL WITH BOUNDED PRE-FILTER GAIN CONTROL
    Publication number: 20110133840
    Abstract: An electronic circuit includes a first variable gain amplifier for amplifying a signal at an input to provide a first amplified signal; a filter receiving the first amplified signal to provide a filtered signal; a second variable gain amplifier for receiving and amplifying the filtered signal; a second gain control bock, to provide at least one gain control signal derived from the filtered signal, one of the at least one gain control signal to control the gain of the second variable gain amplifier; and a bounding block for receiving one of the at least one gain control signal from the second gain control block, and for generating therefrom a bounded gain control signal to control gain of the first variable gain amplifier.
    Type: Application
    Filed: December 3, 2009
    Publication date: June 9, 2011
    Inventors: Steve Selby, Fung Ling Chiu, Gary Cheng