Patent ID: 8554960

Claim:
An input device transmitting input data from at least one input portion to an information processing apparatus, the input device of the type that can optionally be connected to an external expansion device including a gyrosensor, the input device comprising: a controller which is connected to a bus, controls said input portion, and acquires data; an expansion connector which connects various devices including the external expansion device to said bus; a switcher which selectively switches a connection of said bus from said expansion connector to said controller; an internal gyrosensor which is functionally equivalent to said external expansion device gyrosensor; and a sensor controller configured to transmit data acquired from said internal gyrosensor to said controller via said bus, and is connected to a side of said controller and a side of said expansion connector of said bus without interposing said switcher, and is further configured to control said switcher, wherein said sensor controller switches the connection of said switcher off whenever the controller accesses itself to thereby disconnect the external expansion device gyrosensor from the bus.