Patents by Inventor Jacqueline C. Chen

Jacqueline C. Chen 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).

  • Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection
    Patent number: 7890052
    Abstract: A communication system has a stratospheric platform with a payload controller and a phased array antenna having a plurality of main array elements for generating a plurality of communication beams and a plurality of auxiliary elements for canceling interference between the communication beams. A gateway station communicates with the stratospheric platform. The gateway station scales the plurality of elements to form a reconfigurable plurality of beams. The gateway station communicates an embedded control signal to the stratospheric platform to communicate a scaling of elements to form the communication beams and the auxiliary element output. The auxiliary element output is used to provide interference canceling.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: February 15, 2011
    Assignee: The DIRECTV Group, Inc.
    Inventors: Donald C Chang, Alan Cha, Jacqueline C Chen, Frank A Hagen
  • STRATOSPHERIC-BASED COMMUNICATION SYSTEM FOR MOBILE USERS USING ADDITIONAL PHASED ARRAY ELEMENTS FOR INTERFERENCE REJECTION
    Publication number: 20080233884
    Abstract: A communication system has a stratospheric platform with a payload controller and a phased array antenna having a plurality of main array elements for generating a plurality of communication beams and a plurality of auxiliary elements for canceling interference between the communication beams. A gateway station communicates with the stratospheric platform. The gateway station scales the plurality of elements to form a reconfigurable plurality of beams. The gateway station communicates an embedded control signal to the stratospheric platform to communicate a scaling of elements to form the communication beams and the auxiliary element output. The auxiliary element output is used to provide interference canceling.
    Type: Application
    Filed: October 30, 2007
    Publication date: September 25, 2008
    Inventors: Donald C. D. Chang, Alan Cha, Jacqueline C. Chen, Frank A. Hagen
  • Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection
    Patent number: 7317916
    Abstract: A communication system has a stratospheric platform with a payload controller and a phased array antenna having a plurality of main array elements for generating a plurality of communication beams and a plurality of auxiliary elements for canceling interference between the communication beam. A gateway station communicates with the stratospheric platform. The gateway station scales the plurality of elements to form a reconfigurable plurality of beams. The gateway station communicates an embedded control signal to the stratospheric platform to communicate a scaling of elements to form the communication beams and the auxiliary element output. The auxiliary element output is used to provide interference canceling.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: January 8, 2008
    Assignee: The DIRECTV Group, Inc.
    Inventors: Donald C. D. Chang, Alan Cha, Jacqueline C. Chen, Frank A. Hagen
  • Antenna directivity estimator for a reconfigurable antenna
    Patent number: 7254365
    Abstract: A method and apparatus for redistributing power radiated by an antenna comprised of a plurality of antenna elements. An antenna directivity estimator function is performed to screen out inappropriate antenna directivity profiles from a plurality of antenna directivity profiles, thereby determining one or more remaining, appropriate antenna directivity profiles. An optimizer function is performed on the remaining, appropriate antenna element directivities to determine a phase distribution for the antenna elements based on a desired power distribution for the antenna.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: August 7, 2007
    Assignee: The Boeing Company
    Inventor: Jacqueline C. Chen
  • Antenna directivity estimator for a reconfigurable antenna
    Publication number: 20040171409
    Abstract: A method and apparatus for redistributing power radiated by an antenna comprised of a plurality of antenna elements. An antenna directivity estimator function is performed to screen out inappropriate antenna directivity profiles from a plurality of antenna directivity profiles, thereby determining one or more remaining, appropriate antenna directivity profiles. An optimizer function is performed on the remaining, appropriate antenna element directivities to determine a phase distribution for the antenna elements based on a desired power distribution for the antenna.
    Type: Application
    Filed: February 18, 2004
    Publication date: September 2, 2004
    Applicant: The Boeing Company
    Inventor: Jacqueline C. Chen