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    • 10. 发明授权
    • Coded/non-coded program audience measurement system
    • 编码/非编码节目观众测量系统
    • US07647605B2
    • 2010-01-12
    • US12035853
    • 2008-02-22
    • Daozheng LuDavid H. Harkness
    • Daozheng LuDavid H. Harkness
    • H04H60/32H04H60/33
    • H04H60/44H04H60/37
    • An audience measurement system identifies a program which is broadcast from a signal source and to which a receiver is tuned. The audience measurement system includes a code reader for reading an ancillary code of the program to which the receiver is tuned, a channel status detector for determining channel status relating to channels to which the receiver is tuned, a memory for storing ancillary codes read by the code reading means and for storing channel status determined by the channel status determining means if ancillary codes are not readable by the code reading means, and a communicator for communicating the ancillary code and/or the channel status to a central office computer.
    • 观众测量系统识别从信号源广播并且接收机被调谐到的节目。 观众测量系统包括用于读取接收机被调谐到的节目的辅助码的码阅读器,用于确定与接收机调谐到的频道有关的信道状态的信道状态检测器,用于存储由接收机调谐的辅助码的存储器 代码读取装置,并且用于存储通道状态确定装置确定的通道状态,如果代码读取装置不能读取辅助代码,以及用于将辅助代码和/或通道状态传送到中心局计算机的通信器。