Electronic equipment communication system, external device for the communication system, electronic equipment and electronic equipment communication method

摘要

An electronic equipment communication system has electronic equipment and an external device to be connected to the electronic equipment. Communication between the external device and electronic equipment takes place when they are connected to each other and the external device has a program recording unit, in which a control program is recorded that controls the external device itself, and a program output unit, which outputs to the electronic equipment a control program stored in this program recording unit in response to requests from the connected electronic equipment, The electronic equipment controls the external device based on a control program outputted from the program output unit. Because the external device is controlled by the optimal control program recorded in the program recording unit, the performance of the external device can be fully elicited.