Patents by Inventor Keng-Chang LIANG

Keng-Chang LIANG 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).

  • Radio frequency signal receiving device
    Patent number: 8855590
    Abstract: Disclosed is a radio frequency signal receiving device, which includes a low-noise amplifier (LNA) and a mixer. The LNA includes a first inductor and a second inductor. The mixer has a first differential pair and a second differential pair, common ends of the first differential pair and the second differential pair are respectively coupled to the first differential output end and the second differential output end. The first inductor and the second inductor are serially connected between the first differential output end and the second differential output end of the LNA, so as to reduce power consumption and reach suitable frequency response. The first inductor and the second inductor generate a resonance effect with parasitic capacitance on the mixer, so as to effectively reduce flicker noises, and improve a working benefit of the radio frequency signal receiving device.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: October 7, 2014
    Assignee: Montage Technology (Shanghai) Co., Ltd.
    Inventors: Shih-Ming Chiu, Keng-Chang Liang
  • RADIO FREQUENCY SIGNAL RECEIVING DEVICE
    Publication number: 20130273867
    Abstract: Disclosed is a radio frequency signal receiving device, which includes a low-noise amplifier (LNA) and a mixer. The LNA includes a first inductor and a second inductor. The mixer has a first differential pair and a second differential pair, common ends of the first differential pair and the second differential pair are respectively coupled to the first differential output end and the second differential output end. The first inductor and the second inductor are serially connected between the first differential output end and the second differential output end of the LNA, so as to reduce power consumption and reach suitable frequency response. The first inductor and the second inductor generate a resonance effect with parasitic capacitance on the mixer, so as to effectively reduce flicker noises, and improve a working benefit of the radio frequency signal receiving device.
    Type: Application
    Filed: January 29, 2013
    Publication date: October 17, 2013
    Applicant: MONTAGE TECHNOLOGY (SHANGHAI) CO., LTD.
    Inventors: Shih-Ming CHIU, Keng-Chang LIANG