Multiplex communications – Communication over free space – Repeater
Patent
1998-05-21
2000-09-12
Olms, Douglas W.
Multiplex communications
Communication over free space
Repeater
370350, 370503, 375355, H04J 306
Patent
active
061187704
ABSTRACT:
A synchronized frequency generating system is provided which includes a main crystal clock, for producing a basic frequency F.sub.B, a channel sampling phase locked loop (PLL) unit, connected to the main crystal clock, for converting the basic frequency F.sub.B into a channel sampling frequency F.sub.CS, a voice sampling PLL unit, connected to the main crystal clock, for converting the basic frequency F.sub.B into a voice sampling frequency F.sub.VS, a time tracking unit, connected to the channel sampling PLL unit, for detecting signal characteristics so as to determine a channel sampling frequency phase change value .DELTA..phi..sub.CS and a frame timing phase change value .DELTA..phi..sub.FRAME, and a frequency controller, connected to the voice sampling PLL. The frequency controller receives channel sampling frequency phase adjustment data and determines a voice sampling frequency phase change value .DELTA..phi..sub.VS. The frequency controller provides the voice sampling frequency phase change value .DELTA..phi..sub.VS to the voice sampling PLL.
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Pianka Boaz
Shatit Biniamin
D.S.P.C. Technologies Ltd.
Olms Douglas W.
Vanderpuye Ken
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