Patents by Inventor Chien-An Cho

Chien-An Cho 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: 8396220
    Abstract: A system and method of mobile content sharing and delivery in an integrated network environment, comprising; a first mobile terminal serving as information provider, a home server, and a second mobile terminal serving as information receiver. The information of said first mobile terminal is transmitted to said second mobile terminal through said home server, and that information can be stored in said home server for direct downloading of file by said second mobile terminal in an asynchronous transmission manner; when said first mobile terminal moves and switches to another network environment, said second mobile terminal still can request and download said information through said home server. A double key protection scheme is further provided in safeguarding secure transaction of information.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: March 12, 2013
    Assignee: National Central University
    Inventors: Chih-Lin Hu, Chien-An Cho, Po-Jung Wang
  • Publication number: 20120093317
    Abstract: A system and method of mobile content sharing and delivery in an integrated network environment, comprising; a first mobile terminal serving as information provider, a home server, and a second mobile terminal serving as information receiver. The information of said first mobile terminal is transmitted to said second mobile terminal through said home server, and that information can be stored in said home server for direct downloading of file by said second mobile terminal in an asynchronous transmission manner; when said first mobile terminal moves and switches to another network environment, said second mobile terminal still can request and download said information through said home server. A double key protection scheme is further provided in safeguarding secure transaction of information.
    Type: Application
    Filed: December 28, 2011
    Publication date: April 19, 2012
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: CHIH-LIN HU, CHIEN-AN CHO, PO-JUNG WANG
  • Publication number: 20110045843
    Abstract: The present invention provides a system and a method for mobile group positioning, which are applied to a plurality of mobile devices of a group. The system comprises a central control unit, a plurality of mobile tracking units, and a plurality of mobile message units. The mobile tracking units and the mobile message units are disposed in the mobile devices. The mobile message units correspond to the mobile tracking units, respectively. The mobile message units add a user message to the corresponding positioning messages, respectively, and transmit to the central control unit. The central control unit transmits the positioning messages including the user message to the mobile message unit of one of the mobile devices in the group. Thereby, the mobile device need not consume extra network resources or power in transmitting the user messages, and hence achieving power-saving effect and saving network resources.
    Type: Application
    Filed: December 9, 2009
    Publication date: February 24, 2011
    Inventors: Chin-Iin Hu, Chien-An Cho, Chen-Wei Fan, Chang-Jung Lin
  • Publication number: 20110013775
    Abstract: A system and method of mobile content sharing and delivery in an integrated network environment, comprising; a first mobile terminal serving as information provider, a home server, and a second mobile terminal serving as information receiver. The information of said first mobile terminal is transmitted to said second mobile terminal through said home server, and that information can be stored in said home server for direct downloading of file by said second mobile terminal in an asynchronous transmission manner; when said first mobile terminal moves and switches to another network environment, said second mobile terminal still can request and download said information through said home server. A double key protection scheme is further provided in safeguarding secure transaction of information.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 20, 2011
    Inventors: Chih-Lin Hu, Chien-An Cho, Po-Jung Wang