发明名称 DIGITAL BROADCAST TRANSMISSION APPARATUS AND DIGITAL BROADCAST RECEPTION APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide a digital broadcast transmission apparatus capable of distributing an access control program by a data carousel.SOLUTION: A digital broadcast transmission apparatus 1 includes: distribution data generation means 13 for encrypting an access control program by a master secret key and generating distribution data by the data type of a data carousel; distribution data scramble means 14 for encrypting the distribution data by a scramble key and generating encryption distribution data; common information generation means 15 for encrypting the scramble key by a transmission line protection key and generating common information; individual information generation means 16 for encrypting the transmission line protection key by a master key and generating individual information; download table generation means 17 for generating a download table including an identifier which indicates a fact that the access control program is transmitted by the data carousel; and multiplex means 19 for multiplexing the generated information.
申请公布号 JP2015092725(A) 申请公布日期 2015.05.14
申请号 JP20140263788 申请日期 2014.12.26
申请人 NIPPON HOSO KYOKAI <NHK> 发明人 NISHIMOTO TOMONARI;KAWAKITA HIROYUKI;INOUE TOMOYUKI
分类号 H04N21/266;H04L9/08;H04N21/4623 主分类号 H04N21/266
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