Patents by Inventor Chunmei Pei

Chunmei Pei 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).

  • Multi-mode coexistence method for a multi-mode communication device
    Patent number: 8077755
    Abstract: The present invention discloses a multi-mode coexistence method of a multi-mode communication device comprising steps of: setting priorities of frequency usage for all modes supported by the multi-mode communication device; determining a channel where a signal of a lower priority mode are interfered with by that of a higher priority mode; performing frequency hopping to outside said determined channel by the lower priority mode. The invention allows signals of various modes to coexist in the multi-mode communication device without modifying the existing RF reception system, and thus reduces the system cost and implementation complexity.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: December 13, 2011
    Assignees: Beijing Lenovo Software Ltd., Lenovo (Beijing) Limited
    Inventors: Gongwei Wu, Wenying Shan, Yufei Zhang, Zheng Wang, Chunmei Pei
  • Multi-Mode Coexistence Method of a Multi-Mode Communication Device
    Publication number: 20090296785
    Abstract: The present invention discloses a multi-mode coexistence method of a multi-mode communication device comprising steps of: setting priorities of frequency usage for all modes supported by the multi-mode communication device; determining a channel where a signal of a lower priority mode are interfered with by that of a higher priority mode; performing frequency hopping to outside said determined channel by the lower priority mode. The invention allows signals of various modes to coexist in the multi-mode communication device without modifying the existing RF reception system, and thus reduces the system cost and implementation complexity.
    Type: Application
    Filed: December 7, 2005
    Publication date: December 3, 2009
    Applicants: BEIJING LENOVO SOFTWARE LTD., LENOVO(BEIJING) LIMITED
    Inventors: Gongwei Wu, Wenying Shan, Yufei Zhang, Zheng Wang, Chunmei Pei