发明名称 INFORMATION-ANNOUNCING SYSTEM
摘要 An electronic announcing system for announcing the time at predetermined intervals, e.g., 10 seconds, wherein a digital clock is utilized with an audio storage drum in conjunction with a phase state or mode selector and control logic so that an audio readout is gated from the audio storage device every so often to announce the correct time.
申请公布号 US3632880(A) 申请公布日期 1972.01.04
申请号 USD3632880 申请日期 1969.04.23
申请人 COGNITRONICS CORP. 发明人 GERALD GOLDSCHEIN;ALAN L. GOLDMAN
分类号 G04G13/00;H04M3/487;(IPC1-7):G11B19/06;H04M1/64 主分类号 G04G13/00
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