Patents by Inventor Kiat Hoe Wong

Kiat Hoe Wong 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).

  • Power control circuit and method
    Patent number: 7154338
    Abstract: A method (400) for controlling power and an amplifier and associated power control circuit (100) with a power amplifier (110) coupled through a current sensing resistor (Rsen) to a supply voltage line (vcc). There is also a current to voltage converter (120) having a converter output (135) and at least one converter input, the converter input being coupled to the supply voltage line (Vcc) of the power amplifier (110). A voltage reference providing circuitry (140) is coupled to a second input (152) of an integrator (150) that also has an integrator output (153) and a first input (151) coupled to the converter output (135) and a direct current biasing circuit (195) couples the integrator output ((153) to an amplifier input (111) of amplifier (110). The method (400) and circuit (100) use a time dependent pre-defined voltage characteristic supplied to the integrator (150).
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: December 26, 2006
    Assignee: Motorola, Inc.
    Inventors: V. C. Prakash V K Chacko, Narendra Kumar Aridas, Kiat Hoe Wong
  • Power control circuit and method
    Publication number: 20060145764
    Abstract: A method (400) for controlling power and an amplifier and associated power control circuit (100) with a power amplifier (110) coupled through a current sensing resistor (Rsen) to a supply voltage line (vcc). There is also a current to voltage converter (120) having a converter output (135) and at least one converter input, the converter input being coupled to the supply voltage line (Vcc) of the power amplifier (110). A voltage reference providing circuitry (140) is coupled to a second input (152) of an integrator (150) that also has an integrator output (153) and a first input (151) coupled to the converter output (135) and a direct current biasing circuit (195) couples the integrator output ((153) to an amplifier input (111) of amplifier (110). The method (400) and circuit (100) use a time dependent pre-defined voltage characteristic supplied to the integrator (150).
    Type: Application
    Filed: December 30, 2004
    Publication date: July 6, 2006
    Inventors: V.C. Prakash Chacko, Narendra Kumar Aridas, Kiat Hoe Wong