Patents by Inventor Tiam Fatt Tey

Tiam Fatt Tey 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).

  • Tuner circuit with loop through function
    Patent number: 8519807
    Abstract: The tuner circuit comprises a HF input and a HF output with a loop through function, wherein a variable capacitance diode is coupled with a first terminal to the HF input and with a second terminal to the HF output for providing a passive loop through function. The variable capacitance diode is in particular in a passing mode, when no DC reverse voltage is applied, for providing a passive loop through function. In a preferred embodiment, the tuner circuit is designed for reception of television channels, and for the variable capacitance diode one or two tuning variable capacitance diode is used being designed for satellite tuners with a frequency range of 1-2 GHz, or a specially designed variable capacitance diode with a capacitance ratio C1/C25>18 at a frequency of 1 MHz for DC reverse voltages of 1 and 25 Volts is used.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: August 27, 2013
    Assignee: Thomson Licensing
    Inventors: Zhi Qing Luo, Tiam Fatt Tey
  • TUNER CIRCUIT WITH LOOP THROUGH FUNCTION
    Publication number: 20100134219
    Abstract: The tuner circuit comprises a HF input and a HF output with a loop through function, wherein a variable capacitance diode is coupled with a first terminal to the HF input and with a second terminal to the HF output for providing a passive loop through function. The variable capacitance diode is in particular in a passing mode, when no DC reverse voltage is applied, for providing a passive loop through function. In a preferred embodiment, the tuner circuit is designed for reception of television channels, and for the variable capacitance diode one or two tuning variable capacitance diode is used being designed for satellite tuners with a frequency range of 1-2 GHz, or a specially designed variable capacitance diode with a capacitance ratio C1/C25>18 at a frequency of 1 MHz for DC reverse voltages of 1 and 25 Volts is used.
    Type: Application
    Filed: June 23, 2008
    Publication date: June 3, 2010
    Inventors: Zhi Qing Luo, Tiam Fatt Tey
  • RF circuit with stacked printed circuit boards
    Patent number: 7725095
    Abstract: An RF unit comprises a tuner, a demodulator and a mixer. At least the tuner and the mixer are disposed on separate first and second substrates. The RF unit further comprises a housing accommodating the first and second substrates. The first substrate and the second substrate are arranged on different levels inside the housing and maintain a predetermined distance between each other.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: May 25, 2010
    Assignee: Thomson Licensing
    Inventors: Tiam Fatt Tey, Lye Yoong Lum, Feng Lin