Method and apparatus for transmitting and receiving message for downloadable CAS or DRM in MMT
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United States of America Patent
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Jul 4, 2017
Grant Date -
Nov 7, 2013
app pub date -
May 2, 2013
filing date -
May 2, 2012
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Abstract
A method for transmitting and receiving a message for Downloadable-Conditional Access System (D-CAS) or Downloadable-Digital Rights Management (D-DRM) in Moving Picture Experts Group Media Transport (MMT) is provided. The method includes, upon receiving Composition Information (CI) from an MMT server, acquiring signaling information for D-CAS or D-DRM, which is included in the CI, acquiring, from the signaling information, an address of a server from which software of D-CAS or D-DRM is downloadable, generating a request for the software based on the signaling information, and sending the request for the software to the server address.
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