发明名称 Terminal apparatus, information service center, transmitting system, and transmitting method
摘要 A transmitting system in which a data once downloaded in a memory of a terminal apparatus from an information service center is returned to the information service center while the returned data is deleted from the memory of the terminal apparatus, and a fee for a next new data purchased by the terminal apparatus from the information service center is discounted or not charged.
申请公布号 US6477506(B1) 申请公布日期 2002.11.05
申请号 US19990247910 申请日期 1999.02.11
申请人 SONY CORPORATION 发明人 ISHII MICHITO;NAKAMURA JUNICHI;OOTSU SHUICHI
分类号 G10H1/36;(IPC1-7):G06F17/60 主分类号 G10H1/36
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