| 摘要 |
A digital closed circuit television system is disclosed enabling high-definition digital video and other information to be transmitted over standard co-axial cable as well as including bi-directional communication. According to one embodiment of the invention there is provided a video monitoring system comprising at least one digital video camera creating a digital video stream wherein the or each digital video camera produces a camera signal, at a particular transmission rate, representing at least the digital video stream for transmission over a co-axial cable infrastructure; an interface enabled to receive the camera signal from the or each digital video camera transmitted over a co-axial cable infrastructure and reconstruct the camera signal back into the digital video stream and send an interface signal to the or each digital video camera; and a storage medium wherein the or each digital video stream received by the interface can be stored.
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