作者: Ayako Takatsuji , Naoshi Usuki , Hiroyuki Iitsuka
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摘要: The present invention provides a content distribution management device that manages for receiver which is permitted to share stored in transmitter. the case where transmitter distributes plurality of receivers, including registration information/counter changing unit (205) sets, holding (203), valid reception period maximum length time receivers can receive content, being and manages, accordance with status from transmitter, all content.