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    • 6. 发明授权
    • Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto
    • 用于对广播或记录片段进行编码/解码并监视受众观看者的方法和装置
    • US08260113B2
    • 2012-09-04
    • US11845714
    • 2007-08-27
    • Victor A. AijalaGerald B. CohenJames M. JensenWendell D. LynchJuan C. Urbi
    • Victor A. AijalaGerald B. CohenJames M. JensenWendell D. LynchJuan C. Urbi
    • H04N9/80
    • H04H60/31H04H20/31H04H60/37H04H60/45H04H60/58H04N21/25891H04N21/44222
    • Methods and apparatus for encoding and decoding information in broadcast or recorded segment signals are described. In certain embodiments, an audience monitoring system encodes identification information in the audio signal portion of a broadcast or recorded segment using spread spectrum encoding. A personal monitoring device receives an acoustically reproduced version of the broadcast or recorded signal via a microphone, decodes the identification information from the audio signal portion despite significant ambient noise, and stores this information, automatically providing a diary for the audience member which is later uploaded to a centralized facility. A separate monitoring device decodes additional information from the broadcast signal, which is matched with the audience diary information at the central facility. This monitor may simultaneously send data to the centralized facility using a dial-up telephone line, and receive data from the centralized facility through a signal encoded using a spread spectrum technique and modulated with a broadcast signal from a third-party.
    • 描述用于在广播或记录的段信号中对信息进行编码和解码的方法和装置。 在某些实施例中,观众监视系统使用扩频编码来对广播或记录段的音频信号部分中的识别信息进行编码。 个人监视装置通过麦克风接收广播或记录信号的声音再现版本,尽管有大量的环境噪声来解码来自音频信号部分的识别信息,并且存储该信息,为后来上传的观众自动提供日记 到一个集中的设施。 单独的监控设备从广播信号解码附加信息,其与中央设施的观众日记信息相匹配。 该监视器可以使用拨号电话线将数据同时发送到集中式设施,并且通过使用扩展频谱技术编码的信号从集中式设备接收数据,并用来自第三方的广播信号进行调制。