Apparatus and method for providing hfc forward path spectrum

Details Apparatus and method for providing hfc forward path spectrum Apparatus and method for providing hfc forward path spectrum

H - Electricity

04

J

H04J 14/00 (2006.01)

Patent

CA 2547106

An apparatus for use in a hybrid fiber coax (HFC) network provides the HFC forward path spectrum from the head end to a network fiber node. The apparatus includes a head end modulator. The modulator directly receives a switchable digital data signal and internally processes the switchable digital data signal to produce the HFC forward path spectrum that directly drives the node. The HFC forward path spectrum may be directly converted to an analog optical signal by the modulator itself or by an optical conversion device immediately following the modulator.

L'invention concerne un appareil à utiliser dans des réseaux de fibres coaxiales hybrides (HFC) permettant d'obtenir un spectre de voie de propagation avant HFC, d'un centre de distribution à un noeud de fibre de réseau. Cet appareil comprend un modulateur de centre de distribution. Ce modulateur reçoit directement un signal de données numériques commutables et traite de manière interne le signal de données numériques commutables pour produire le spectre de voie de propagation avant HFC qui pilote directement le noeud. Le spectre de voie de propagation avant HFC peut être directement converti en un signal optique analogue par le modulateur lui-même ou par un dispositif de conversion optique suivant immédiatement le modulateur.

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