Recovery of client clock without jitter

Details Recovery of client clock without jitter Recovery of client clock without jitter

H - Electricity

03

L

H03L 7/081 (2006.01)

Patent

CA 2612431

The present invention provides a system, apparatus and method for recovering a client signal clock. The present invention is able to more effectively remove jitter within a clock signal by providing a phase shifting element in the feedback of a PLL system to compensate for sudden changes in an input reference clock. The PLL system provides flexible clock recovery so that it can accommodate various payload types because it extracts a client clock signal independent of a corresponding justification count number.

La présente invention concerne un système, un dispositif et un procédé destinés à récupérer un signal d'horloge client. La présente invention permet de supprimer plus efficacement la gigue dans un signal d'horloge par utilisation d'un élément de déphasage dans la rétroaction d'un système PLL en vue d'une compensation des changements brusques intervenant dans un signal d'horloge de référence d'entrée. Le système PLL permet d'obtenir une récupération de signal d'horloge souple en vue d'une prise en charge de divers types de charges utiles étant donné qu'il extrait un signal d'horloge client indépendamment d'un nombre de comptages de justification correspondant.

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