CONTENT RETRIEVAL CONTROL DEVICE, CONTENT REPRODUCING DEVICE, INTEGRATED CIRCUIT, CONTENT RETRIEVAL CONTROL METHOD, CONTENT RETRIEVAL CONTROL PROGRAM AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To normally retrieve content related to an object, even when a recognition state of the object is unstable.SOLUTION: A determination part 308 determines that the object exists in the vicinity of the content retrieval control device 304, there is the possibility that the object exists in the vicinity thereof, or the object does not exist in the vicinity thereof each time estimation information is acquired. When it is determined that the object exists in the vicinity of the content retrieval control unit 304, an object identifier for specifying the object determined as to exist is stored in a memory 310 by the determination part 308. When it is determined that the object specified by the stored object identifier does not exist after the object identifier is stored, the determination part 308 deletes the stored object identifier. A retrieval instruction part 309 transmits the object identifier to a content retrieving part 305 in a period in which the object identifier is stored.