| 摘要 |
<p>In a wide band radio frequency (RF) simulcast communications system analog voice signals are distributed in a digitized form over high speed data channels and processed as high speed data. A conventional Ericsson, Inc. EDACS® simulcast communications system is improved by altering the apparatus and manner by which 'clear voice' (analog voice) is distributed from a control point and 'aligned' at the multiple transmitter sites for simultaneous RF broadcasting. The EDACS simulcast system digital data stream alignment process can then produce the requisite time domain alignment of digitized 'clear voice' signals without the need for costly analog audio alignment procedures and equipment.</p> |
