发明名称 |
BROADCAST RECEPTION DEVICE, PORTABLE TERMINAL DEVICE, BROADCAST RECEPTION METHOD, AND PROGRAM |
摘要 |
PROBLEM TO BE SOLVED: To provide a broadcast reception device which can efficiently record and reproduce encrypted content data with little load.SOLUTION: An TS (Transport Stream) signal processing unit (14) divides a received broadcast wave into content data and an ECM (Entitlement Control Message). An ECM/EMM (Entitlement Management Message) processing unit (16) and a CAS (Conditional Access System) processing unit (24) decrypt the ECM. A recording processing unit (18) records the content data in an encrypted state in a recording medium (30). A secret information storage unit (28) stores a scramble key (Ks) included in the decrypted ECM and contract information including viewing conditions for the content data in association with the content data recorded in the recording medium (30). |
申请公布号 |
JP2014045414(A) |
申请公布日期 |
2014.03.13 |
申请号 |
JP20120187447 |
申请日期 |
2012.08.28 |
申请人 |
SHARP CORP |
发明人 |
HOTTA KOJI |
分类号 |
H04N5/92;G11B20/10;H04L9/08;H04L9/36;H04N5/91;H04N7/167 |
主分类号 |
H04N5/92 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|