Patent ID: 8078102
Filing Date: 2011-12-13
Classification: H04N

Abstract:
1. A cable system for providing RF signals into a subscriber's facility, comprising: a main line carrying first RF signals for a plurality of subscribers, the first RF signals containing information communicated between the main line and the subscribers; a subscriber line coupled between the main line and the subscriber's facility, the subscriber line carrying the first RF signals and also carrying second RF signals having a frequency different from that of the first RF signals; a rectifier/voltage multiplier connected to the subscriber line, the rectifier/voltage multiplier converting AC energy in the second RF signals into DC current; a filter connected between the subscriber line and the rectifier/voltage multiplier for processing the RF signals carried along the subscriber line such that substantially only the second RF signals are passed to the rectifier/voltage multiplier; and an active RF device powered by the DC current from the rectifier/voltage multiplier, the RF device being located along the subscriber line.