Patent ID: 8576898
Filing Date: 2013-11-05
Classification: H04L,H04N

Abstract:
1. A system for transmitting video signals, comprising a camera-side modem configured to receive two signals from a video camera, each signal being representative of sequence of images captured by the camera, and further configured to transmit one of the two signals as a composite baseband video signal and to modulate and transmit the other signal as a passband video signal that does not overlap the baseband signal, wherein the camera-side modem includes: a mixer that combines the baseband and passband video signals to provide a transmission signal; a diplexer configured to transmit the transmission signal over a transmission line and to extract a received passband signal from the transmission line; and a detector that monitors the camera-side modem and generates an enable signal when the received passband signal is identified, wherein the enable signal controls transmission of at least one of the baseband video signal and the passband video signal, and wherein the passband video signal is transmitted only when the enable signal is generated.