Patents by Inventor Joseph Z. Fung

Joseph Z. Fung 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: 20230088143
    Abstract: Aspects of the subject disclosure may include, for example, a local server coupled to a plurality of client devices. The local server may receive encrypted content from one or more content sources and provide the content to the client devices. The local server and client devices may be part of a multi-client environment such as a hotel or conference center. The local server does not decrypt and re-encrypt content, thereby allowing the use of low cost equipment. Other embodiments are disclosed.
    Type: Application
    Filed: September 17, 2021
    Publication date: March 23, 2023
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Xin Wang, Richard Tatem, Reza Pezeshki, Joseph Z. Fung, Brian Moore, Horia-Mihai Popa, Luan Le-Chau
  • Publication number: 20110035810
    Abstract: A method, system, device, and computer program product for processing plural rights expressions associated with an item for use in a system for controlling use of the item in accordance with the rights expressions, including receiving a request to use an item, the item having associated rights expressions governing use of the item; returning one or more rights expressions including conditions that must be satisfied in order to use the item; and processing the returned rights expressions in a manner to facilitate selection of the returned rights expressions in order to use the item in accordance with the selected rights expressions.
    Type: Application
    Filed: October 19, 2010
    Publication date: February 10, 2011
    Applicant: ContentGuard Holdings, Inc
    Inventors: Vincent H. TIEU, Joseph Z. Fung, Eddie J. Chen, Bijan Tadayon
  • Patent number: 7840488
    Abstract: A method, system, device, and computer program product for processing plural rights expressions associated with an item for use in a system for controlling use of the item in accordance with the rights expressions, including receiving a request to use an item, the item having associated rights expressions governing use of the item; returning one or more rights expressions including conditions that must be satisfied in order to use the item; and processing the returned rights expressions in a manner to facilitate selection of the returned rights expressions in order to use the item in accordance with the selected rights expressions.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: November 23, 2010
    Assignee: ContentGuard Holdings, Inc.
    Inventors: Vincent Tieu, Joseph Z. Fung, Eddie Chen, Bijan Tadayon
  • Publication number: 20040230529
    Abstract: A method, system, device, and computer program product for processing plural rights expressions associated with an item for use in a system for controlling use of the item in accordance with the rights expressions, including receiving a request to use an item, the item having associated rights expressions governing use of the item; returning one or more rights expressions including conditions that must be satisfied in order to use the item; and processing the returned rights expressions in a manner to facilitate selection of the returned rights expressions in order to use the item in accordance with the selected rights expressions.
    Type: Application
    Filed: November 14, 2003
    Publication date: November 18, 2004
    Applicant: CONTENTGUARD HOLDINGS, INC.
    Inventors: Vincent H. Tieu, Joseph Z. Fung, Eddie J. Chen, Bijan Tadayon
  • Publication number: 20030009424
    Abstract: A method and apparatus for managing access to resources that integrates both authorization and protection for a wide range of resources. The rights to access a protected resource are based on conditions. Conditions are associated with both resource the resource and the state of the resource to thereby protect the resource at various stages during its life cycle. Conditions that are associated with the entire life cycle of the protected resource can be expressed by use of a grammar including data structures, sets of rules or a language.
    Type: Application
    Filed: June 7, 2002
    Publication date: January 9, 2003
    Applicant: CONTENTGUARD HOLDINGS, INC.
    Inventors: Thanh Ta, Thomas DeMartini, Joseph Z. Fung, Guillermo Lao, Mai Nguyen, Bijan Tadayon, Vincent Tieu, Duc Tran, Xin Wang, Edgardo Valenzuela
  • Patent number: 6301011
    Abstract: A plug and play interface for output device used in a distributed computer network includes a front end module which submits print jobs to a document processor module. The document processor module processes the print jobs and forwards the print jobs to a back end module, which directs the print jobs to the appropriate output devices. The plug and play interface allows for the addition of various output devices connected by various protocols by simply bringing into to the back end a shared library corresponding to the new output device. Thus, various output devices may be used without requiring any revision of or stopping the system.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: October 9, 2001
    Assignee: Xerox Corporation
    Inventors: Joseph Z. Fung, Vikram R. Mahuvakar, Shee-Yen Tan, Ton Huu Truong
  • Patent number: 6175839
    Abstract: A filter interface allows a filter to send extracted attribute information extracted from the master document data to a server. The server then stores the received attribute information into an attribute database.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: January 16, 2001
    Assignee: Fuji Xerox
    Inventors: Nobuyuki Takao, Gilbert K. K. Leong, Jennifer D. Thomas, Charles H. Evans, IV, Joseph Z. Fung, Vikram R Mahuvakar
  • Patent number: 5978560
    Abstract: A distributed printing system that more optimally distributes job requests within a distributed printing system based on more detailed information about the particular attributes of each output device. In particular, additional printer attributes are used that allow greater utilization of a plurality of attached printers having differing capabilities. These attributes include "max-concurrent-jobs-processing" (MCJP), "number-of-jobs-on-device" (NJOD) and "number-of-cascaded-jobs" (NCJ), and a attribute value "saturated" for the attribute "printer-state". The attribute MCJP is an integer value that is based on the capabilities of the printer. NJOB and NCJ attributes allow monitoring of jobs sent to each printer for supported and unsupported printers. If NJOB or NCJ are greater than MCJP, then the attribute "printer-state" is set to "saturated", prohibiting further spooling of print jobs to that particular printer.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: November 2, 1999
    Assignee: Xerox Corporation
    Inventors: Shee-Yen Tan, Joseph Z. Fung, Shengkuo Fan, David Paul Nesbitt