Patents by Inventor Yuanjing Ll

Yuanjing Ll 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).

  • CIRCUITS FOR GENERATING SWEEP FREQUENCY SIGNAL
    Publication number: 20150048868
    Abstract: A circuit to generate a sweep frequency signal that includes a reference frequency source to generate a reference frequency signal, a first frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a first frequency band based on the reference frequency signal, a second frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a second frequency band different from the first frequency band based on the reference frequency signal, a multiple-level switch coupled to outputs of the first frequency combination circuit and the second frequency combination circuit, and a control circuit controlling the first and second frequency combination circuits and the multiple-level switch to output the sweep frequency signal in the first frequency band and the sweep frequency signal in the second frequency band at an output of the multiple-level switch alternately.
    Type: Application
    Filed: June 3, 2014
    Publication date: February 19, 2015
    Inventors: Ziran ZHAO, Wenguo LIU, Zhiqiang CHEN, Yuanjing Ll, Wanlong WU, Yinong LIU, Bin SANG, Lei ZHENG