Patent ID: 7065190

Claim:
A method of encoding and decoding computer video signals for transmission over a twisted pair cable, comprising the steps of: (a) providing a computer video signal comprising red, green, blue, vertical sync and horizontal sync components; (b) converting the vertical sync component into a narrow vertical sync component; (c) combining the narrow vertical sync component with the red component, thereby generating a combined red narrow vertical sync component; (d) converting the horizontal sync component into a narrow horizontal sync component; (e) combining the narrow horizontal sync component with the green component, thereby generating a combined green narrow horizontal sync component; (f) transmitting the combined red narrow vertical sync, combined green narrow horizontal sync and blue components via a twisted pair cable such that one pair of conductors is used for transmission of each of the components, thereby utilizing only three pairs of conductors; (g) extracting the narrow vertical sync component from the combined red narrow vertical sync component without removing the narrow vertical sync component from the combined red narrow vertical sync component; (h) converting the narrow vertical sync component into the vertical sync component; (i) extracting the narrow horizontal sync component from the combined green narrow horizontal sync component without removing the narrow horizontal sync component from the combined green narrow horizontal sync component; (j) converting the narrow horizontal sync component into the horizontal sync component; (k) receiving the computer video signal comprising the combined red narrow vertical sync, combined green narrow horizontal sync, blue, vertical sync and horizontal sync components.