Patents by Inventor Guolong Su

Guolong Su 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: 9648618
    Abstract: A bandpass filter includes a plurality of parallel paths. Each path includes a first mixer, a low-pass filter, and a second mixer. The first mixer in each path receives the input signal and mixes the input signal with a periodic mixer sequence. The low-pass filter in each path is operable to filter an output of the associated first mixer. The second mixer in each path is coupled to receive an output of the associated low-pass filter and mixes said filter output with a periodic mixer sequence having a period that is divided into a plurality of time slots, wherein again the mixer value is constant during each time slot. A summer sums the outputs of the second mixers of each of the paths to generate an output of the bandpass filter.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: May 9, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Guolong Su, Arthur John Redfern
  • Publication number: 20160164555
    Abstract: A bandpass filter includes a plurality of parallel paths. Each path includes a first mixer, a low-pass filter, and a second mixer. The first mixer in each path receives the input signal and mixes the input signal with a periodic mixer sequence. The low-pass filter in each path is operable to filter an output of the associated first mixer. The second mixer in each path is coupled to receive an output of the associated low-pass filter and mixes said filter output with a periodic mixer sequence having a period that is divided into a plurality of time slots, wherein again the mixer value is constant during each time slot. A summer sums the outputs of the second mixers of each of the paths to generate an output of the bandpass filter.
    Type: Application
    Filed: February 16, 2016
    Publication date: June 9, 2016
    Inventors: Guolong Su, Arthur John Redfern
  • Patent number: 9294138
    Abstract: A bandpass filter includes a plurality of parallel paths, each receiving the input signal to the bandpass filter. Each path includes a first mixer, a low-pass filter, and a second mixer. The first mixer in each path is coupled to receive the input signal and mixes the input signal with a periodic mixer sequence having a period that is divided into a plurality of time slots. The mixer value is constant during each time slot. The low-pass filter in each path is operable to filter an output of the associated first mixer. The second mixer in each path is coupled to receive an output of the associated low-pass filter and mixes said filter output with a periodic mixer sequence having a period that is divided into a plurality of time slots, wherein again the mixer value is constant during each time slot. A summer sums the outputs of the second mixers of each of the paths to generate an output of the bandpass filter.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: March 22, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Guolong Su, Arthur John Redfern
  • Publication number: 20160043756
    Abstract: A bandpass filter includes a plurality of parallel paths, each receiving the input signal to the bandpass filter. Each path includes a first mixer, a low-pass filter, and a second mixer. The first mixer in each path is coupled to receive the input signal and mixes the input signal with a periodic mixer sequence having a period that is divided into a plurality of time slots. The mixer value is constant during each time slot. The low-pass filter in each path is operable to filter an output of the associated first mixer. The second mixer in each path is coupled to receive an output of the associated low-pass filter and mixes said filter output with a periodic mixer sequence having a period that is divided into a plurality of time slots, wherein again the mixer value is constant during each time slot. A summer sums the outputs of the second mixers of each of the paths to generate an output of the bandpass filter.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 11, 2016
    Inventors: Guolong Su, Arthur John Redfern