Patents by Inventor Chang Woo Pyo

Chang Woo Pyo 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: 8929315
    Abstract: One wireless communication network 3 determines an interference degree with the corresponding other wireless communication network 3 for each channel by accessing a CMDB 2 storing positional information, channel information, and respective coexistence methods of other wireless communication networks 3, selects other wireless communication network 3 to coexist, a coexisting channel, and a coexisting method thereof based on the interference degree for each determined channel, and reflects the selected network, channel, and coexistence method to the CMDB 2, and transmits a signal for requesting coexistence with respect to selected wireless communication network, to the CMDB 2, and the selected wireless communication network 3 performs a control for coexistence in the communication space between one wireless communication network and the selected wireless communication network based on the channel reflected to the CMDB 2 and the coexisting method thereof.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: January 6, 2015
    Assignee: National Institute of Information and Communications Technology
    Inventors: Mohammad Azizur Rahman, Gabriel Porto Villardi, Zhou Lan, Tuncer Baykas, Chang-Woo Pyo, Chunyi Song, Chin-Sean Sum, Junyi Wang, Hiroshi Harada
  • Patent number: 8583939
    Abstract: A method for securing indirect function calls by using program counter encoding is provided. The method includes inserting a decoding code for an address of a library function stored in a GOT (Global Offset Table) entry into a PLT (Procedure Linkage Table) entry when an object file is built; generating an encoding key corresponding to the decoding code; and encoding the GOT entry corresponding to the library function by using the encoding key when program execution begins.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: November 12, 2013
    Assignees: Korea University Research and Business Foundation, Hongik University Industry—Academia Cooperation Foundation
    Inventors: Gyungho Lee, Chang Woo Pyo
  • Publication number: 20120011371
    Abstract: A method for securing indirect function calls by using program counter encoding is provided. The method includes inserting a decoding code for an address of a library function stored in a GOT (Global Offset Table) entry into a PLT (Procedure Linkage Table) entry when an object file is built; generating an encoding key corresponding to the decoding code; and encoding the GOT entry corresponding to the library function by using the encoding key when program execution begins.
    Type: Application
    Filed: December 16, 2010
    Publication date: January 12, 2012
    Applicants: HONGIK UNIVERSITY INDUSTRY-ACADEMIA COOPERATION FOUNDATION, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Gyungho Lee, Chang Woo Pyo
  • Publication number: 20030088865
    Abstract: An apparatus and method for incrementally performing a remote loading is disclosed. The incremental remote loading apparatus includes dependent reader modules for analyzing the object file according to a object type and detecting an independent linking information and independent linker module for receiving a detected liking information, downloading the object file to a target system and rearranging target modules of the target system. The present invention provides convenience to developers by linking object files to the target system without following a linking order and reduces a development time by changing a dependent environment without changing whole developing environment and reduces communication time by recognizing various object file type and partly loading/unloading related modules to target system.
    Type: Application
    Filed: December 31, 2001
    Publication date: May 8, 2003
    Inventors: Chae Deok Lim, Chang Woo Pyo, Deokkyun Gyun Wu, Heung nam Kim, Chae Kyu Kim