发明名称 |
ANTI-COPYING METHOD AND APPARATUS |
摘要 |
The present invention teaches anti-copy protection and control of an underlying anti-copy protection mechanism through anti-copy protection codes (108) inserted into a video program (102). The anti-copy protection code (108) may be inserted into closed caption (CC) bandwidth (110). The anti-copy protection codes (108) of the present invention are suitable for use with analog and digital video programs. The present invention contemplates anti-copy protection mechanism having multiple levels of anti-copy protection. These multiple levels of anti-copy protection may include varying levels of degradation of subsequent copies as well as absolute prohibition of subsequent copying.
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申请公布号 |
WO03049433(A1) |
申请公布日期 |
2003.06.12 |
申请号 |
WO2002US34225 |
申请日期 |
2002.10.25 |
申请人 |
VISIONAIRE TECHNOLOGY CORP. |
发明人 |
QU, TONY |
分类号 |
H04N5/765;H04N5/775;H04N5/913;(IPC1-7):H04N5/91 |
主分类号 |
H04N5/765 |
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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