Patents by Inventor XiaoWu Dai

XiaoWu Dai 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).

  • Analog signal soft switching control with precise current steering generator
    Patent number: 9312849
    Abstract: A switching circuit includes a first input stage having an input for receiving a first input signal, an output, and a power terminal for receiving an increasing analog current, a second input stage having an input for receiving a second input signal, an output, and a power terminal for receiving a decreasing analog current, and an output node coupled to the outputs of the first input stage and the second input stage for providing a switched output signal. An output stage is coupled between the first and second input stages and the output node. The first and second input stages are operational amplifiers.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: April 12, 2016
    Assignee: STMICROELECTRONICS (SHENZHEN) R&D CO. LTD.
    Inventors: Min Chen, Wen Liu, HongXia Li, XiaoWu Dai
  • ANALOG SIGNAL SOFT SWITCHING CONTROL WITH PRECISE CURRENT STEERING GENERATOR
    Publication number: 20140300388
    Abstract: A switching circuit includes a first input stage having an input for receiving a first input signal, an output, and a power terminal for receiving an increasing analog current, a second input stage having an input for receiving a second input signal, an output, and a power terminal for receiving a decreasing analog current, and an output node coupled to the outputs of the first input stage and the second input stage for providing a switched output signal. An output stage is coupled between the first and second input stages and the output node. The first and second input stages are operational amplifiers.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Inventors: Min CHEN, Wen LIU, HongXia LI, XiaoWu DAI
  • Analog signal soft switching control with precise current steering generator
    Patent number: 8779801
    Abstract: A switching circuit includes a first input stage having an input for receiving a first input signal, an output, and a power terminal for receiving an increasing analog current, a second input stage having an input for receiving a second input signal, an output, and a power terminal for receiving a decreasing analog current, and an output node coupled to the outputs of the first input stage and the second input stage for providing a switched output signal. An output stage is coupled between the first and second input stages and the output node. The first and second input stages are operational amplifiers.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: July 15, 2014
    Assignee: STMicroelectronics (Shenzhen) R&D Co. Ltd.
    Inventors: Min Chen, Wen Liu, HongXia Li, XiaoWu Dai