Patents by Inventor Edward H. Schacker

Edward H. Schacker 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: 20070286420
    Abstract: A network device and method are directed towards providing one time content encryption for Video on Demand (VOD) broadcast services and Networked Personal Video Recorders (NPVRs) using unique encryption keys. As content is received by the network device, it is determined whether the content is for broadcast distribution to a consumer and to be ingested into an NPVR/VOD server for possible unicast distribution. If the content is for both distributions, it is encrypted using at least one control word (CW) key. The encrypted content is then copied into at least two streams, with the CW being encrypted with at least two different keys, one for broadcast distribution, and one for NPVR Programs. One stream may then be ingested by the NPVR/VOD server, while the other stream may be broadcast to a consumer. The encryption keys may be provided through EMMs to a consumer based on a purchase.
    Type: Application
    Filed: May 14, 2007
    Publication date: December 13, 2007
    Applicant: Widevine Technologies, Inc.
    Inventors: Charles Duncan MacLean, Edward Charles Hiar, Hamid Shaheed Ali, Sergio Jose Goncalves da Silva, Andre Jacobs, Edward H. Schacker