| http://www.w3.org/ns/prov#value | - For example, in Japanese Laid-Open Patent Publication No. 62-208029 (U.S. Pat. No. 4,728,978), it is disclosed that when an IC card as a recording medium is loaded in a camera, data such as an electric source voltage, frequency and others of the IC card side are outputted to the camera side so as to judge whether the IC card is fit for the camera or not.
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