| http://www.w3.org/ns/prov#value | - nd from the capsule 3, the capsule 3 and the external device 4 are set respectively to a state for performing bi-directional radio communications. [0072] Thereupon, the operational state of the capsule 3 can be set by transmitting a command, such as an imaging start command or the like, to the capsule 3 via the input circuit 41.
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