Patent ID: 8510483

Claim:
A transmitter device comprising: an interface unit that is an interface for connection to a receiver device via a transmission path; a pre-emphasis unit configured to selectively operate in a pre-emphasis mode in which a pre-emphasis process is performed so as to generate a pre-emphasis signal or a normal mode in which the pre-emphasis process is not performed so as to generate a normal signal, the pre-emphasis process involving adding to an input signal another signal for compensating for a high-frequency component of the input signal; and a transmission control unit configured to (i) acquire identification information indicating whether or not the receiver device is capable of performing a process of receiving the pre-emphasis signal, and (ii) when the acquired identification information indicates the receiver device is capable of performing the process of receiving the pre-emphasis signal, to cause the pre-emphasis mode to be selected such that the pre-emphasis unit generates the pre-emphasis signal and to switch the receiver device to a state in which the receiver device is capable of performing the process of receiving the pre-emphasis signal, and (iii) when the acquired identification information indicates the receiver device is not capable of performing the process of receiving the pre-emphasis signal, to cause the normal mode to be selected such that the pre-emphasis unit generates the normal signal and to switch the receiver device to a state in which the receiver device is capable of performing the process of receiving the normal signal.