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    • 9. 发明授权
    • Pass through of remote commands
    • US09148609B2
    • 2015-09-29
    • US11894505
    • 2007-08-21
    • Peter Rae ShintaniTohru Doumuki
    • Peter Rae ShintaniTohru Doumuki
    • H04N21/4363H04N21/443H04N5/44H04N21/422
    • H04N5/4403G08C2201/40H04N21/42221H04N21/43632H04N21/43635H04N21/4436
    • In one embodiment, a television set having remote control signaling to a controlled device has a data communication interface for communication of data, said data communication interface having a connection reserved for DC power. A remote control interface that receives commands from a remote control device. A circuit determines whether a command received at the remote control interface is destined for the television set or for the controlled device. The controlled device is connected to the television set via the data communication interface. A modulator modulates a signal representing a command destined for the controlled device onto the DC power connection in order to convey the command to the controlled device. In another embodiment a television accessory device that is interconnected to and controllable by the television has a data communication interface for communication of data, said data communication interface having a connection reserved for DC power. The accessory device is connected to the television via the data communication interface. A demodulator is coupled to the DC power connection and demodulates a signal representing a command that is modulated onto the DC power connection in order to receive a command from the television. A processor implements the command in the accessory device. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.