Patents by Inventor Wenfeng Lou

Wenfeng Lou 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).

  • Patent number: 9941892
    Abstract: The present disclosure discloses a multi-standard performance reconfigurable I/Q orthogonal carrier generator. The generator may implement a continuously covered I/Q carrier output of 0.1-5 GHz and continuously covered differential signal outputs of 5-10 GHz and 1.5-3 GHz by means of reasonable frequency assignment; also, carrier signals under various frequencies with different loop bandwidths, different phase noises, different power consumption levels and different locking times can be generated by configuring a programmable charge pump (102), a loop filter (103) parameter, a multi-path voltage-controlled oscillator (104) and a first multiplexer (105) corresponding thereto, a five-stage-division-by-two frequency division link (109) and a corresponding second multiplexer (110) and third multiplexer (112), so as to implement generation of a multi-standard performance reconfigurable I/Q orthogonal carrier.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: April 10, 2018
    Assignee: Institute Of Semiconductors, Chinese Academy Of Sciences
    Inventors: Xiaodong Liu, Nanjian Wu, Haiyong Wang, Wenfeng Lou, Jingjing Chen, Zhao Zhang
  • Publication number: 20170163270
    Abstract: The present disclosure discloses a multi-standard performance reconfigurable I/Q orthogonal carrier generator. The generator may implement a continuously covered I/Q carrier output of 0.1-5 GHz and continuously covered differential signal outputs of 5-10 GHz and 1.5-3 GHz by means of reasonable frequency assignment; also, carrier signals under various frequencies with different loop bandwidths, different phase noises, different power consumption levels and different locking times can be generated by configuring a programmable charge pump (102), a loop filter (103) parameter, a multi-path voltage-controlled oscillator (104) and a first multiplexer (105) corresponding thereto, a five-stage-division-by-two frequency division link (109) and a corresponding second multiplexer (110) and third multiplexer (112), so as to implement generation of a multi-standard performance reconfigurable I/Q orthogonal carrier.
    Type: Application
    Filed: June 24, 2014
    Publication date: June 8, 2017
    Inventors: Xiaodong Liu, Nanjian Wu, Haiyong Wang, Wenfeng Lou, Jingjing Chen, Zhao Zhang