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US 7,277,104 B2Granted
Video signal skew
AssigneeAdder Technology Limited
InventorsNigel Anthony Dickens, Adrian Christopher Dickens, Darrin Steel
Life of this patent
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AssigneeAdder Technology Limited
InventorsNigel Anthony Dickens, Adrian Christopher Dickens, Darrin Steel
Estimating the term…
Devices for reducing and determining the skew between colour video signals transmitted over at least two different video cables are described. A KVM extender including such devices is also described. The skew reduction device includes a plurality of video signal transmission tracks selectably connectable to each of the video cables to increase the video signal transmission path length so as to more closely matching the total video signal path length for each of the colour video signals. The skew determination device comprises a processing device, a signal generator for applying measuring signals to each of the video signal cables and signal detection circuitry to receive measuring signals transmitted over the video signal cables. Detection signals are output to the processing device which is programmed to determine an indication of the transmission path length difference between the video signal cables.
A device for determining the amount of skew between colour video signals transmitted over at least two different video signal cables, the device comprising a processing device, a signal generator for applying measuring signals to each of the video signal cables and signal detection circuitry to receive measuring signals transmitted over the video signal cables and output detection signals to the processing device which is programmed to determine an indication of the transmission path length difference between the video signal cables, in which the detection signals comprise delay signals and phase signals.
A method for determining the amount of skew between colour video signals transmitted over at least two different video signal cables, the method comprising:
A method for reducing skew between colour video signals transmitted over at least two different video signal cables, the method comprising:
Dependencies are inferred from the claim text.