Patents by Inventor Kun-Chan Tsai

Kun-Chan Tsai 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: 8107963
    Abstract: A positioning module positions a location of a mobile communication apparatus. A processor determines whether the location falls within a predetermined range, wherein the predetermined range is equal to or greater than an effective communication coverage of a neighboring base station. If the processor determines that the location is within the predetermined range, a signal detection module measures the signal from the neighboring base station. By detecting the signals of the neighboring base stations earlier, the present invention is able to function while the mobile communication apparatus moves at high speeds and successfully switch the connections between the base stations.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: January 31, 2012
    Assignee: Institute for Information Industry
    Inventors: Kun-Chan Tsai, Chia-Hsiang Chang
  • Publication number: 20080200163
    Abstract: A positioning module positions the location of the mobile communication apparatus. A determination module stores a map and determines whether the location of the mobile communication apparatus is within one of the effective communication ranges of the available base stations based on the map. A processing module ceases searching for the signals of available base stations if the location of the mobile communication apparatus is determined not to be within one of the effective communication ranges. A mobile communication apparatus can cease searching for the signals of available base stations if the mobile communication apparatus is not within one of the effective communication ranges of any available base stations or the search takes too much time. Therefore, power is saved.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 21, 2008
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Kun-Chan Tsai, Hung-Wei Wu, Yao-Chuan Wu, Chien-Wen Wang
  • Publication number: 20080146233
    Abstract: A positioning module positions a location of a mobile communication apparatus. A processor determines whether the location falls within a predetermined range, wherein the predetermined range is equal to or greater than an effective communication coverage of a neighboring base station. If the processor determines that the location is within the predetermined range, a signal detection module measures the signal from the neighboring base station. By detecting the signals of the neighboring base stations earlier, the present invention is able to function while the mobile communication apparatus moves at high speeds and successfully switch the connections between the base stations.
    Type: Application
    Filed: May 18, 2007
    Publication date: June 19, 2008
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Kun-Chan Tsai, Chia-Hsiang Chang
  • Publication number: 20060116110
    Abstract: A wireless connection method and system controlled by the callee device. The method of the present invention comprises: a connection request step, a paging step, a paging message reception step, a connection creation step, and a call notification step, so the callee device can provide a notification to a user before a connection is built; if the user refuses the call, the connection will not be built; if the user answer the call, this connection can be built.
    Type: Application
    Filed: January 5, 2005
    Publication date: June 1, 2006
    Applicant: Institute For Information Industry
    Inventors: Yu-Fang Chen, Yi-Hao Chang, Kun-Chan Tsai, Chih-Wei Su