Patent ID: 6643436
Filing Date: 2003-11-04
Classification: G01M,H04B

Abstract:
A method of identifying the fibers of a fiber optic cable, comprising:inputting a set of signals at one end of the fiber optic cable to the fibers of said fiber optic cable; and detecting the signals at another end of the fiber optic cable; wherein each signal of the set of signals has a different waveform, and is an input to a respectively different fiber, whereby each fiber has an input signal of a different waveform from the other fibers in the cable, wherein each waveform has a plurality of states and an integer X associated therewith, X being different for each waveform and the integers X forming a set of integers Xn, wherein the waveforms are generated by: establishing a generating clock cycle at a generating rate; defining a repeat period for the waveforms, the repeat period being equal to 2Y cycles of the clock and being the same for each waveform, Y being an integer greater than the highest integer of the set of integers Xn; counting X mod Y for each waveform at each clock cycle and changing the state of the waveform each time Y is reached or exceeded by said counting.