Intel Corporation

D.s.p.c. Technologies Ltd.

Biniamin Shatit

Boaz Pianka

A synchronized frequency generating system is provided which includes a main crystal clock, for producing a basic frequency F , a channel sampling phase locked loop (PLL) unit, connected to the main crystal clock, for converting the basic frequency F into a channel sampling frequency F , a voice sampling PLL unit, connected to the main crystal clock, for converting the basic frequency F into a voice sampling frequency F , 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 &Dgr;&phgr; and a frame timing phase change value &Dgr;&phgr; , and a phase controller, connected to the voice sampling PLL. The phase controller receives channel sampling frequency phase adjustment data and determines a voice sampling frequency phase change value &Dgr;&phgr; . The phase controller provides the voice sampling frequency phase change value &Dgr;&phgr; to the voice sampling PLL.

Voice-channel frequency synchronization

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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Yehuda, Israel

Biniamin Shatit