| 摘要 |
A digital signage system includes at least one set of differential transmission lines, a transmitter, at least one receiver, and at least one digital signage device. Each set of differential transmission lines includes four pairs of differential transmitting lines. The transmitter converts image and/or audio signal into first to third pairs of differential signals for output to the first to third pairs of differential transmission lines, and receives remote-captured video and/or audio signal via the fourth pair of differential transmission lines. The receiver receives the first to third pairs of differential signal from the first to third pairs of differential transmission lines, and extracts the video and/or audio signal to be displayed on the digital signage device. The receiver receives and processes a remote-captured video and/or audio signal from a remote capture device, and transmits such signal back to the transmitter via the fourth pair of differential transmission lines. |
| 主权项 |
1. A digital signage system, comprising:
a transmitting device adapted for coupling to one end of a cable, the cable including a first, a second, a third and a fourth pair of differential transmission lines, the transmitting device receiving a video signal, transforming the video signal to a first, a second, and a third pair of differential signals, and transmitting the first, second, and third pair of differential signals to the first, second, and third pair of differential transmission lines, respectively; and a receiving device adapted for coupling to another end of the cable, for receiving the first, second, and third pair of differential signals from the first, second, and third pair of differential transmission lines of the cable, and transforming the first, second, and third pair of differential signals to the video signal, wherein the receiving device receives a remote-captured video signal, generates a processed remote-captured video signal which contains the remote-captured video signal, and transmits the processed remote-captured video signal to the transmitting device via the fourth pair of differential transmission lines of the cable. |
