发明名称 Emergency alert system
摘要 A system for inputting conventional emergency alert messages into a digital subscriber television system. The method allows existing emergency alert equipment to interface with the digital system equipment in the headend of a digital subscriber television system. A unique identifier and the format of the digital emergency alert message allow the input of an emergency alert message and allow for a wide variety of optional data formats, system control options, and data storage options.
申请公布号 US6543051(B1) 申请公布日期 2003.04.01
申请号 US19990368561 申请日期 1999.08.05
申请人 SCIENTIFIC-ATLANTA, INC. 发明人 MANSON AZITA M.;ADDINGTON TIMOTHY H.
分类号 G08B27/00;H04N7/08;H04N7/16;(IPC1-7):H04N7/025;H04N7/173;H04N11/00;H04M11/00 主分类号 G08B27/00
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