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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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