Patent ID: 6844741

Claim:
A computerized method for electrical length matching, comprising: providing a reference wire and a plurality of wires to be tuned, each of the wires positioned substantially parallel to a corresponding particular array of light emitting devices; and for each of the wires to be tuned, transmitting a reference signal and a test signal over the reference wire and the wire, respectively, to a measuring device and determining the time difference between arrival of the respective signals at the measuring device, wherein the reference signal and the test signal are transmitted at the same time; determining, using a computer and the time difference, a location along the length of the wire where the wire has an electrical length that is substantially equal to the electrical length of the reference wire; and initiating, by the computer, a visual indication of the location along the length of the wire by activating at least one of the light emitting devices in the particular array corresponding to the wire.