Patents by Inventor Brendan Brett

Brendan Brett 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 apparatus for transition of encryption key during an ongoing media communication session
    Patent number: 7711119
    Abstract: The disclosed embodiments provide for methods and apparatus for encrypting media using a current media encryption key (MEK), requesting a new MEK, and receiving the new MEK. The method further provides for transitioning from the current MEK to the new MEK and continuing to encrypt the media using the new MEK. In another embodiment, the method provides for decrypting media during an ongoing media communication session, the method provides for receiving encrypted media, and decrypting the encrypted media using a current MEK. The method further provides for requesting a new MEK before the current MEK expires based on its associated expiration time, receiving the new MEK, and continuing to decrypt the encrypted media based on a received MEK indication flag (MIF) that indicates whether the encrypted media is encrypted using the current MEK or the new MEK.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: May 4, 2010
    Assignee: QUALCOMM Incorporated
    Inventors: Brendan Brett, Maria Marshall
  • Method and apparatus for transition of encryption key during an ongoing media communication session
    Publication number: 20050276415
    Abstract: The disclosed embodiments provide for methods and apparatus for encrypting media using a current media encryption key (MEK), requesting a new MEK, and receiving the new MEK. The method further provides for transitioning from the current MEK to the new MEK and continuing to encrypt the media using the new MEK. In another embodiment, the method provides for decrypting media during an ongoing media communication session, the method provides for receiving encrypted media, and decrypting the encrypted media using a current MEK. The method further provides for requesting a new MEK before the current MEK expires based on its associated expiration time, receiving the new MEK, and continuing to decrypt the encrypted media based on a received MEK indication flag (MIF) that indicates whether the encrypted media is encrypted using the current MEK or the new MEK.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 15, 2005
    Inventors: Brendan Brett, Maria Marshall