Patent ID: 8457312
Filing Date: 2013-06-04
Classification: H04N

Abstract:
1. A signal compensation system for processing a video signal transmitted over a cable, the cable having at least first, second and third pairs of wires, the video signal having first, second and third color signals each transmitted by a corresponding pair of wires, the system comprising: a signal compressing circuit disposed upstream of the cable for compressing two or more electrical signals into the third color signal of the video signal transmitted by the third pair of wires when a vertical sync signal of the video signal is enabled, wherein the two or more electrical signals have different frequencies and are compressed into the third color signal during different time periods; a signal converting circuit disposed downstream of the cable for converting the two or more electrical signals in the third color signal into direct current signals representing levels of the electrical signals after being transmitted by the cable; and a compensation control circuit for generating one or more compensation control signals based on the direct current signals representing levels of the electrical signals.