Patent ID: 8582736

Claim:
A communication device configured to form a first transmission link with a data processing device configured to output transmission data, comprising: a first communication controller configured to control a communication with the data processing device via the first transmission link; a receiver configured to receive the transmission data from the data processing device via the first transmission link; a storage device configured to store the transmission data received by the receiver; a second communication controller configured to control a communication via a second transmission link which is different from the first transmission link; a transmitter configured to transmit the transmission data sent via the first transmission link and stored in the storage device through the second transmission link; a particular canceller configured to cancel the transmission of the transmission data through the second transmission link upon receiving a canceling command sent via the first transmission link; an observer configured to observe whether the communication via the first transmission link, which transmits the transmission data to the communication device, is enabled, in response to receiving the transmission data via the first transmission link and storing the received transmission data in the storage device; and a further canceller configured to cancel the transmission of the transmission data stored in the storage device through the second transmission link, after the receiving of the transmission data from the data processing device via the first transmission link and the storing of the received transmission data in the storage device, when the observer observes that the communication with the data processing device is disabled.