Invention Grant
US09191688B2 Television delivery system 有权
电视传送系统

Television delivery system
Abstract:
A system, device, and method for receiver access control in an interne television system uses a push mechanism to distribute access control information from a distribution device to an access device. The access device uses the access control information to make receiver access control decisions for a subsequently received request from a host to join a television channel multicast group.
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