Patents by Inventor Yuan Wei Ng

Yuan Wei Ng 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).

  • Dual-feedback amplifier limiter
    Patent number: 10581383
    Abstract: A method and apparatus for a dual-feedback, amplifier limiter for providing a conditioned radio-frequency signal. The dual-feedback, amplifier limiter includes an input that receives a radio-frequency signal and a stacked amplifier including an input node coupled to the input, an output node, a first transistor configured as a common-base amplifier, and a second transistor configured as a common-emitter amplifier. The dual-feedback, amplifier limiter further includes an output coupled to the output node of the stacked amplifier. The output provides the conditioned radio-frequency signal. The dual-feedback, amplifier limiter further includes a radio-frequency feedback circuit coupled to the stacked amplifier. The radio-frequency feedback circuit includes a passive radio-frequency dependent reactive element in series with a radio-frequency feedback circuit resistor.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: March 3, 2020
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Alexander Oon, Teik Yang Goh, Yuan Wei Ng, Seow Teng Wong
  • DUAL-FEEDBACK AMPLIFIER LIMITER
    Publication number: 20180351514
    Abstract: A method and apparatus for a dual-feedback, amplifier limiter for providing a conditioned radio-frequency signal. The dual-feedback, amplifier limiter includes an input that receives a radio-frequency signal and a stacked amplifier including an input node coupled to the input, an output node, a first transistor configured as a common-base amplifier, and a second transistor configured as a common-emitter amplifier. The dual-feedback, amplifier limiter further includes an output coupled to the output node of the stacked amplifier. The output provides the conditioned radio-frequency signal. The dual-feedback, amplifier limiter further includes a radio-frequency feedback circuit coupled to the stacked amplifier. The radio-frequency feedback circuit includes a passive radio-frequency dependent reactive element in series with a radio-frequency feedback circuit resistor.
    Type: Application
    Filed: December 17, 2015
    Publication date: December 6, 2018
    Inventors: Alexander Oon, Teik Yang Goh, Yuan Wei Ng, Seow Teng Wong