发明名称 |
WATERMARK DECODER AND METHOD FOR PROVIDING BINARY MESSAGE DATA |
摘要 |
A watermark decoder comprises a time-frequency-domain representation provider, a memory unit, a synchronization determiner and a watermark extractor. The time-frequency-domain representation provider provides a frequency-domain representation of the watermarked signal for a plurality of time blocks. The memory unit stores the frequency-domain representation of the watermarked signal for a plurality of time blocks. Further, the synchronization determiner identifies an alignment time block based on the frequency-domain representation of the watermarked signal of a plurality of time blocks. The watermark extractor provides binary message data based on stored frequency-domain representations of the watermarked signal of time blocks temporally preceding the identified alignment time block considering a distance to the identified alignment time block. |
申请公布号 |
KR20120112884(A) |
申请公布日期 |
2012.10.11 |
申请号 |
KR20127024979 |
申请日期 |
2011.02.22 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E. V. |
发明人 |
WABNIK STEFAN;PICKEL JOERG;GREEVENBOSCH BERT;GRILL BERNHARD;EBERLEIN ERNST;DEL GALDO GIOVANNI;KRAEGELOH STEFAN;ZITZMANN REINHARD;BLIEM TOBIAS;BREILING MARCO;BORSUM JULIANE |
分类号 |
G10L19/00;G10L19/018 |
主分类号 |
G10L19/00 |
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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