发明名称 |
APPARATUS AND METHOD FOR DETERMINING THE PROGRAMME TO WHICH A DIGITAL BROADCAST RECEIVER IS TUNED |
摘要 |
An apparatus identifies a program selected for reception on a monitored receiver. The monitored receiver has a receiver output, and the selected program is one of a plurality of receivable programs. The apparatus includes a tuner and demodulator arranged to receive a predetermine done of the programs. A first feature extractor extracts a first set of characteristic features from the receiver output. A second feature extractor extract a second set of characteristic features from the predetermined program. A comparator compares the first and the second sets of characteristic featurs. A code extractor extracts a program identifying code from the predetermined program if the first and the second sets of characteristic features match. |
申请公布号 |
WO02052759(A3) |
申请公布日期 |
2003.01.23 |
申请号 |
WO2001US41333 |
申请日期 |
2001.07.10 |
申请人 |
NIELSEN MEDIA RESEARCH, INC. |
发明人 |
LU, DAOZHENG;DENG, KEQIANG |
分类号 |
H04N17/00;H04H60/37;H04H60/56 |
主分类号 |
H04N17/00 |
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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