System and method for providing multiple services in hfc...

Details System and method for providing multiple services in hfc... System and method for providing multiple services in hfc...

H - Electricity

04

N

H04N 7/173 (2006.01)

Patent

CA 2564929

Various channels containing digital data for CATV services are distributed over the HFC CATV network from the headend. Digital data is modulated on RF sub-carriers within an allocated downstream RF spectrum. The allocated downstream RF spectrum is split such that different parts of the RF spectrum are transmitted by WDM lasers in a transmitter system including an array of such lasers. The transmitter system utilizes WDM to combine different wavelengths from the laser array on the transmitter side and then launches them onto a single fiber. The transmitted optical signals impinge on a single photo device which reproduces the combined RF spectrum at its output.

Divers canaux contenant des données numériques pour des services de télédistribution (CATV) sont distribués sur le réseau CATV HFC (système hybride fibre-coaxial) à partir de la tête de réseau. Les données numériques sont modulées sur des sous-porteuses RF à l'intérieur d'un spectre RF aval attribué. Le spectre RF aval attribué est divisé de sorte que différentes parties de ce spectre RF soient transmises par des lasers de multiplexage optique (WDM) dans un système émetteur comportant une matrice de tels lasers. Le système émetteur utilise le multiplexage optique (WDM) pour combiner différentes longueurs d'ondes issues de la matrice de lasers du côté émission et pour les lancer ensuite sur une seule fibre. Les signaux optiques transmis frappent un unique dispositif photo qui reproduit le spectre RF combiné au niveau de sa sortie.

Affiliated with

Also associated with

Rating

System and method for providing multiple services in hfc... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for providing multiple services in hfc..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for providing multiple services in hfc... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2015491