Provided is an outdoor optical node unit (ONU) and method for converting/combining frequencies, and an apparatus and method for converting/combining frequencies in a cable television headend system. The optical node unit (ONU) includes: a downstream optic-to-electric converting unit for converting a...http://www.google.fr/patents/US20070274730?utm_source=gb-gplus-shareBrevet US20070274730 - Onu And Method For Converting/Combining Frequency, And Apparatus And Method For Converting/Combining Frequency In Catv Headend System
Onu And Method For Converting/Combining Frequency, And Apparatus And Method ...
Numéro de demande: 11/630,160 Numéro de publication: US 2007/0274730 A1 Date de dépôt: 30 déc. 2004 Brevet délivré: US7669224 ( Date de délivrance 23 févr. 2010)
