Patent ID: 6400907
Filing Date: 2002-06-04
Classification: G03B

Abstract:
A camera system comprising:a camera main body including a communication unit and a power supply unit that selectively supplies power having a plurality of different voltages; and an accessory, including a communication unit, and mountable on said camera main body so as to receive power from said power supply unit of said camera main body and to communicate with said communication unit of said camera main body, wherein, when said accessory is mounted on said camera main body, said camera main body supplies power having a first predetermined voltage from said power supply unit of said camera main body to said accessory and determines whether normal communication is performed between said communication unit of said accessory and said communication unit of said camera main body, and when said camera main body determines that normal communication is not performed, said camera main body increases the voltage of the power to be supplied from said power supply unit to said accessory and again supplies power from said power supply unit to said accessory.