发明名称 |
Power efficient detection of watermarks in media signals |
摘要 |
Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to implement power efficient detection of watermarks in media signals are disclosed. Example watermark detection methods disclosed herein include operating a watermark detector in a first operating mode to search for a first watermark in a media signal. Such disclosed example methods also include, in response to detecting the first watermark, determining whether the first watermark satisfies a first condition. Such disclosed example methods further include, in response to determining the first watermark satisfies the first condition, operating the watermark detector in a second operating mode in which the watermark detector cycles between a sleep interval and an active interval to detect a second watermark at a second location in the media signal relative to a first location of the first watermark in the media signal. |
申请公布号 |
US9418395(B1) |
申请公布日期 |
2016.08.16 |
申请号 |
US201414587995 |
申请日期 |
2014.12.31 |
申请人 |
The Nielsen Company (US), LLC |
发明人 |
Gish David;Gupta Sadhana;Kuznetsov Vladimir;Lynch Wendell D.;Neuhauser Alan R. |
分类号 |
G06K9/00;G06T1/00 |
主分类号 |
G06K9/00 |
代理机构 |
Hanley, Flight & Zimmerman, LLC |
代理人 |
Hanley, Flight & Zimmerman, LLC |
主权项 |
1. A watermark detection method comprising:
operating a watermark detector in a first operating mode to search for a first watermark in a media signal; in response to detecting the first watermark, determining, with a processor, whether the first watermark satisfies a first condition; and in response to determining the first watermark satisfies the first condition, operating the watermark detector in a second operating mode in which the watermark detector cycles between a sleep interval and an active interval to detect a second watermark at a second location in the media signal relative to a first location of the first watermark in the media signal. |
地址 |
New York NY US |