| 摘要 |
Changes to the functions of an apparatus and the addition of appliances can be easily performed without needing to change the internal wiring or make connections with signal cables. The system includes a first signal processing means (151, 152) that process an input signal, a judging means for judging whether an expansion second signal processing means (160) is present, a communication means for performing data transfers between the first signal processing means and the expansion second signal processing means via wireless communication, and a control means (171) that changes, when the judging means has judged that an expansion second signal processing means is present, the processing function for an input signal by having wireless communication executed by the communication means. Also, data transfers inside the first signal processing means and the second signal processing means may be performed via wireless communication as necessary. <IMAGE> |
