Patent ID: 7373431

Claim:
A signal processing apparatus for processing an input signal, comprising: first signal processing means having an associated function for processing the input signal; expansion means for adding one or more additional detachable signal processing means, wherein each of said additional detachable signal processing means has a respective function; detecting means for detecting whether the one or more additional signal processing means has been added to the expansion means; communication means for performing data transfers between the first signal processing means and the additional detachable signal processing means via wireless communication; memory means for storing information of signal processing loads and signal paths; power supply means for supplying power to each of said additional processing means, wherein the power supply means supply power to said additional detachable signal processing means through the expansion means; and control means for coordinating the first signal processing means and the one or more additional detachable signal processing means, wherein the control means reconfigures processing loads and signal paths when the additional detachable signal processing means is added, wherein the input signal is processed in accordance with a combination of the function of the first signal processing means, the respective functions of the one or more additional detachable signal processing means, and the coordination of the first signal processing means and the one or more additional detachable signal processing means, and said first signal processing means, expansion means, detecting means, communication means, power supply means, and control means, are arranged inside one case.