作者: Motoyuki Takai , Mitsuru Takehara , Toshiro Terauchi , Yoichiro Sako , Toru Sasaki
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摘要: A method of using contents includes the steps setting public time information and private information, being associated with each content defined universally for use by a large number unspecified users, small particular persons, searching according to and/or detected in searching.