Patents by Inventor Ivonne Y. Chen

Ivonne Y. 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).

  • Method and system for securely performing callbacks in a content distribution system
    Patent number: 9313532
    Abstract: A system for securely communicating callback signals to a head end includes a callback server and a user device communicating a request to open a callback session to the callback server. The callback server opens a first session between the callback server and a user device. The user device communicates an encrypted callback data signal to the callback server through the first session. The callback server opens a second session between the callback sever and a conditional access system associated with a head end, verifies the callback data signal at callback server, and communicates the encrypted callback data signal to the conditional access system through the second session. The conditional access system decrypts the encrypted callback data signal to form decrypted callback data.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: April 12, 2016
    Assignee: The DIRECTV Group, Inc.
    Inventors: Vishal Arya, Ronald J. Hubach, Ivonne Y. Chen, Vaibhav Singh
  • Receiver unit changing between a high definition mode and standard mode and method therefor
    Patent number: 8799963
    Abstract: A system and method of switching services in a receiver unit includes a verifier module in the receiver unit receiving a service signal and middleware within the receiving unit receiving an evaluate signal and enabling the verifier to determine a service change from the service signal. The middleware changing a service flag for the service when a service change is determined at the verifier.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: August 5, 2014
    Assignee: The DIRECTV Group, Inc.
    Inventors: Ronald J. Hubach, Ivonne Y. Chen, Natalya Klimochkin, Sewon Oh, Tam T. Leminh
  • METHOD AND SYSTEM OF CHANGING A RECEIVER BETWEEN A HIGH DEFINITION AND STANDARD DEFINITION MODE
    Publication number: 20090276800
    Abstract: A system and method for controlling a receiving unit to switch services includes a network operation center communicating a service signal to the receiving unit and an evaluate signal to the receiving unit. The receiving unit changes a service of the receiving unit in response to the evaluate signal.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 5, 2009
    Inventors: Ronald J. Hubach, Ivonne Y. Chen, Natalya Z. Klimochkin, Sewon Oh, Tam T. Leminh
  • RECEIVER UNIT CHANGING BETWEEN A HIGH DEFINITION MODE AND STANDARD MODE AND METHOD THEREFOR
    Publication number: 20090276810
    Abstract: A system and method of switching services in a receiver unit includes a verifier module in the receiver unit receiving a service signal and middleware within the receiving unit receiving an evaluate signal and enabling the verifier to determine a service change from the service signal. The middleware changing a service flag for the service when a service change is determined at the verifier.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 5, 2009
    Inventors: Ronald J. Hubach, Ivonne Y. Chen, Natalya Klimochkin, Sewon Oh, Tam T. Leminh