| 发明名称 |
COUNTERMEASURES AGAINST AUDIO/VIDEO CONTENT SECURITY DOMAIN CROSSING |
| 摘要 |
Techniques for preventing circumvention of digital rights management protections on electronic content are provided. A method according to these techniques includes receiving a content stream, obtaining samples from the content stream, generating a histogram based on the samples from the content stream, classifying the content stream as including audio content or non-audio content based on the histogram, and modifying portions of the content stream responsive to classifying the content stream as including non-audio content. The content stream can be modified such that any video content included in the content stream would be rendered unplayable, while audio content included in the content stream remains playable. |
| 申请公布号 |
US2016295283(A1) |
申请公布日期 |
2016.10.06 |
| 申请号 |
US201514677762 |
申请日期 |
2015.04.02 |
| 申请人 |
QUALCOMM Incorporated |
发明人 |
AVANZI Roberto;KANGASLAMPI Simo Petteri;KEIDAR Ron;CHOI Chang-Kuk |
| 分类号 |
H04N21/4627;H04N21/439 |
主分类号 |
H04N21/4627 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A method for preventing circumvention of digital rights management protections on electronic content, the method comprising:
receiving a content stream; obtaining samples from the content stream; generating a histogram based on the samples from the content stream; classifying the content stream as including audio content or non-audio content based on the histogram; and modifying portions of the content stream responsive to classifying the content stream as including non-audio content. |
| 地址 |
San Diego CA US |
