发明名称 ENHANCEMENT OF BROADCAST SIGNALS THROUGH AUTOMATIC SIGNAL DETECTION AND PROVIDING OF SERVICES THROUGH DATA NETWORKS AND DEVICES
摘要 <p>A system for enhancing the value of broadcast signals (100) (e.g., broadcast radio signals) is disclosed. The system identifies the content of a broadcast signal (100) and provides services to receivers (102) of the broadcast signal (100) that relate to the broadcast signal (100) in some way. The services may provide information, entertainment, communication, and commercial opportunities. The disclosed system requires no modification to the broadcast network (101), broadcast content, or end-user devices (105).</p>
申请公布号 WO2001089118(A1) 申请公布日期 2001.11.22
申请号 US2001015572 申请日期 2001.05.14
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