Patents by Inventor Hiang Teik Tan

Hiang Teik Tan 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).

  • Amplifier with bias circuit providing improved linearity
    Patent number: 7911279
    Abstract: An amplifying device includes a cascode amplifier and a biasing circuit. The cascode amplifier is configured to receive an input signal and to output an amplified output signal corresponding to the input signal. The biasing circuit is configured to bias the cascode amplifier, the biasing circuit including a first current mirror and a second current mirror stacked on the first current mirror. The biasing circuit improves linearity of the cascode amplifier across a wide temperature range.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: March 22, 2011
    Inventors: Yut Hoong Chow, Hiang Teik Tan
  • High gain stacked cascade amplifier with current compensation to reduce gain compression
    Patent number: 7876158
    Abstract: A high gain stacked cascade amplifier includes a first amplifying element, a second amplifying element, a current mirror bias element, and a dynamic bias adjustment element. The first and second amplifying elements are coupled in series to form the high gain stacked cascade amplifier configuration. The current mirror bias element provides a bias to the first and second amplifying elements. The dynamic bias adjustment element is coupled to the second amplifying element. The dynamic bias adjustment element is configured to increase a gain compression point of a composite filter, formed by the first and second amplifying elements, in response to a determination that an input signal causes gain compression in the first amplifying element.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: January 25, 2011
    Assignee: Avago Technologies Wireless IP (Singapore) Pte. Ltd.
    Inventors: Yut Hoong Chow, Hiang Teik Tan
  • High Gain Stacked Cascade Amplifier with Current Compensation to reduce Gain Compression
    Publication number: 20100271134
    Abstract: A high gain stacked cascade amplifier includes a first amplifying element, a second amplifying element, a current mirror bias element, and a dynamic bias adjustment element. The first and second amplifying elements are coupled in series to form the high gain stacked cascade amplifier configuration. The current mirror bias element provides a bias to the first and second amplifying elements. The dynamic bias adjustment element is coupled to the second amplifying element. The dynamic bias adjustment element is configured to increase a gain compression point of a composite filter, formed by the first and second amplifying elements, in response to a determination that an input signal causes gain compression in the first amplifying element.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 28, 2010
    Applicant: Avago Technologies Wireless IP (Singapore) Pte. Ltd.
    Inventors: Yut Hoong Chow, Hiang Teik Tan
  • AMPLIFIER WITH BIAS CIRCUIT PROVIDING IMPROVED LINEARITY
    Publication number: 20100127776
    Abstract: An amplifying device includes a cascode amplifier and a biasing circuit. The cascode amplifier is configured to receive an input signal and to output an amplified output signal corresponding to the input signal. The biasing circuit is configured to bias the cascode amplifier, the biasing circuit including a first current mirror and a second current mirror stacked on the first current mirror. The biasing circuit improves linearity of the cascode amplifier across a wide temperature range.
    Type: Application
    Filed: November 26, 2008
    Publication date: May 27, 2010
    Inventors: Yut Hoong CHOW, Hiang Teik TAN