Patent ID: 8327413

Claim:
A digital cable broadcast processing apparatus, comprising: a power supply; an OOB receiver to receive additional information from a transmission system; an interface in which a cable card to descramble the received additional information is removably mounted; and a controller to control the power supply in accordance with a presence or absence of the cable card mounted within the interface, the controller to selectively control the power supply to supply power to the OOB receiver, an OOB demodulator, and an OOB transmitter in accordance with the presence of the cable card mounted within the interface and an operation mode for a standby mode where broadcast information received by the digital broadcast processing apparatus is not viewed and a predetermined power is supplied to the digital broadcast processing apparatus, the controller to control the power supply to supply power to the OOB transmitter to transmit response information when the cable card is mounted within the interface, and the controller to selectively control the power supply to cut off the power to at least one of the OOB receiver, the OOB demodulator, and the OOB transmitter in accordance with the absence of the cable card mounted within the interface.