Patent ID: 8059349

Claim:
A system for detecting a peak signal location, the system comprising: a spiral entry locator circuit operable to receive a signal that includes a first signal region increasing in amplitude preceding a transitional signal region, and to detect an entry region corresponding to an entry cross-over of a spiral reference pattern; and a spiral exit locator circuit that includes a sample number and is operable to: receive the signal that includes a second region of decreasing amplitude succeeding the transitional signal region, continuously detect an exit region corresponding to an exit cross-over of the spiral reference pattern, store a first sequence of samples corresponding to the sample number from the entry region of the spiral reference pattern, and store a second sequence of samples corresponding to the sample number from the exit region of the spiral reference pattern; a comparator operable to compare the first sequence of samples with the second sequence of samples on a sample by sample basis and in reverse order.