Patent ID: 8869212
Filing Date: 2014-10-21
Classification: H04N

Abstract:
1. A media content source to communicate with a plurality of media content receivers each configured to receive a removable circuit device, comprising: a transmitter configured to transmit media content and messages to media content receivers via a television broadcast link; and control circuitry configured to generate and transmit separate messages for each of the media content receivers and for each of the removable circuit devices installed in the media content receivers, wherein each of the media content receivers and each of the installed removable circuit devices is associated with a separate address so that some of the messages are addressed to the media content receivers themselves while other messages are addressed to the removable circuit devices installed in the media content receivers, wherein each of the plurality of media content receivers is configured to process the message to determine whether the address is associated with the media content receiver or one of the removable circuit devices that is installed in the media content receiver, wherein the each of the messages comprises a flag that indicates if the address is associated with one of the media content receivers or one of the removable circuit devices, and wherein each media content receiver determines whether the address is associated with the media content receiver or the removable circuit device based in part upon the flag.