发明名称 |
METHODS AND APPARATUS FOR GENERATING SIGNATURES |
摘要 |
Signaturing methods and apparatus as described. In one example, a signaturing method includes capturing an audio signal, applying a first window function to a portion of the captured audio signal to produce a first windowed audio block, applying a second window function to the portion of the captured audio signal to produce a second windowed audio block, determining a first characteristic of a band of frequencies in the first windowed audio block, determining a second characteristic of the band of frequencies in the second windowed audio block, comparing the first characteristic to the second characteristic, and assigning a signature bit representative of the portion of the captured audio signal based on the comparison of the first characteristic and the second characteristic. Other examples are described. |
申请公布号 |
CA2717723(C) |
申请公布日期 |
2016.10.18 |
申请号 |
CA20082717723 |
申请日期 |
2008.11.06 |
申请人 |
THE NIELSEN COMPANY (US), LLC |
发明人 |
TOPCHY, ALEXANDER PAVLOVICH;RAMAMSWAMY, ARUN;SRINIVASAN, VENUGOPAL |
分类号 |
H04H20/14;G10L17/02;G10L17/20;H04H60/58 |
主分类号 |
H04H20/14 |
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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