发明名称 Method and apparatus for a portable public address system
摘要 An improved light weight, portable public address system configured with high fidelity omni-directional and high wattage directional speakers for both indoor and outdoor use with a wide variety of sound inputs assembled in a self-contained, compact housing. Optional systems provide for the remote deployment of up to two speakers and the use of a remote wireless microphone. Improved options include a unique compact configuration that allows for modular construction of all components for plug and play operation and rapid field replacement; a weatherproof housing for operation in inclement weather, and a tape player to provide prerecorded programming.
申请公布号 US2003063754(A1) 申请公布日期 2003.04.03
申请号 US20010970378 申请日期 2001.10.02
申请人 MEARS RAYMOND L. 发明人 MEARS RAYMOND L.
分类号 H04R27/00;H04R27/04;(IPC1-7):H04R27/00 主分类号 H04R27/00
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