Voice alarm signalling system,申请号US19800148286-传众专利搜索

Voice alarm signalling system

申请公布号：US4347607(A)

申请号：US19800148286

申请日期：1980.05.09

申请公布日期：1982.08.31

申请人：

HARRIS CORPORATION

发明人：NIXON, THOMAS J.;ILEY, HAROLD

分类号：H04B10/02;H04B10/08;(IPC1-7):H04L5/00

主分类号：H04B10/02

摘要：Voice and alarm signalling capability between supervisory personnel at monitor and control sites located at separated transceiver facilities of a (repeatered) multichannel communication network is provided by a multichannel multiplexed encode/decode scheme in which voice and/or alarm signals generated at one station are digitally encoded and formatted so as to be inserted into the data stream of the normally conveyed data traffic over the active channels of the network. At the receiving terminal site, these inserted signals are removed from the high data rate digital data stream and delivered to decoding equipment which reconstructs the original voice and/or alarm signals for delivery to the audio equipment of station operation personnel. The encoded signals are inserted as overhead bits for each active channel, so that a fault on one channel will not prevent the completion of trasmission of the intended communication between terminal site personnel.