发明名称 |
AUDIO DATA RECEIPT/EXPOSURE MEASUREMENT WITH CODE MONITORING AND SIGNATURE EXTRACTION |
摘要 |
Methods and systems are provided for gathering research data that includes information pertaining to audio signals received on a portable device, such as a cell phone. Frequency domain data is received or produced, a signature is extracted from the frequency domain data and an ancillary code is read from the frequency domain data. |
申请公布号 |
AU2003275358(A1) |
申请公布日期 |
2004.04.19 |
申请号 |
AU20030275358 |
申请日期 |
2003.09.26 |
申请人 |
ARBITRON INC. |
发明人 |
THOMAS, W. WHITE;ALAN, R. NEUHAUSER |
分类号 |
G10L15/00;G10L21/00;H04B1/00;H04B1/06;H04B1/69;H04B17/00;H04H60/31;H04H60/37;H04H60/58;H04H60/65;H04N |
主分类号 |
G10L15/00 |
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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