Patents by Inventor Ching Chao

Ching Chao 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).

  • Publication number: 20060021016
    Abstract: A method, apparatus and computer instructions for tracking security attributes along invocation chain using secure propagation token. When a user is authenticated, a propagation token is created. The propagation token includes a caller list, a host list, and custom attributes. The propagation token may be propagated downstream along with other marker tokens. A service provider may associate custom attributes in the propagation token or create custom propagation token to be propagated. The propagation token tracks the original caller and subsequent callers when user switches occur and a list of hosts at which the propagation token lands on.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 26, 2006
    Applicant: International Business Machines Corporation
    Inventors: Peter Birk, Keys Botzum, Ching Chao, Hyen-Vui Chung
  • Publication number: 20050231102
    Abstract: An organic electroluminescence device with a low reflectivity includes organic electroluminescence layers, a transparent electrode, a thin metal electrode, a control layer, and an auxiliary electrode. The transparent electrode and the thin metal electrode are sited on both sides of the OEL layer, respectively, in order to excite it to emit light. The auxiliary electrode and the thin metal electrode are mostly separated by a control layer. Both the auxiliary electrode and the thin metal electrode are locally connected to maintain electrically connected. Therefore, the control layer is not necessarily conductive and its material selection is not restricted by the requirement of work function matching with adjacent layers. The disclosed OLED device with a low reflectivity does not require a circular polarizer. It can be used for both active-matrix and passive-matrix OLED displays. The reflection of ambient light can be largely reduced to increase the contrast of the display panel.
    Type: Application
    Filed: August 17, 2004
    Publication date: October 20, 2005
    Inventors: Ching Chao, Chia Yen, En-Chung Chang