| 发明名称 |
SCRAMBLE APPARATUS, SCRAMBLE METHOD AND PROGRAM |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress consumption of system resources at the time of descrambling, and to scramble at least partial video data. <P>SOLUTION: An encryption target selecting section 13 selects, as an encryption target, one or more data portions including at least a part of a reference frame in video data. An encryption section 15 encrypts the portion selected by the encryption target selecting means. <P>COPYRIGHT: (C)2011,JPO&INPIT |
| 申请公布号 |
JP2010252084(A) |
申请公布日期 |
2010.11.04 |
| 申请号 |
JP20090099908 |
申请日期 |
2009.04.16 |
| 申请人 |
NEC SYSTEM TECHNOLOGIES LTD |
发明人 |
YAMAGUCHI TOMOHIRO;OE SHINJI;ARAI HIDETOSHI |
| 分类号 |
H04L9/36;H04N7/167;H04N21/2347 |
主分类号 |
H04L9/36 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
