G - Physics
11
B
340/72
G11B 20/24 (2006.01) G06F 17/15 (2006.01)
Patent
CA 1257351
ABSTRACT An apparatus and a method is provided for removing noise common to a first signal and second signal correlated with the first. The apparatus comprises a correlation means for providing a third signal indicative of the cross correlation of the first and second signals as a function of a positive time lag of the first signal with respect to the second, and for providing a fourth signal indicative of the cross correlation of the first and second signals as a function of a negative time lag of the first signal with respect to the second signal and means for providing an output signal indicative of the difference between the third and fourth signals. The correlator means comprises a signal correlator having a first circuit input, a second circuit input and provides a signal which is indicative of the cross correlation of signals applied to the inputs as a function of time lag of one input signal with respect to the other and includes means for switching inputs between a positive time lag mode and a negative time lag mode. The switching means in the positive time lag mode directs the first signal to the first input and the second signal to the second input to provide the third signal. The switching means in the negative time lag mode directs the first signal to the second input and the second signal to the first input to provide the fourth signal. The means for providing an output signal indicative of the difference between a third and a fourth signal includes means for inverting one of the input signals applied in one of the modes and adding the third and fourth signals.
485945
Mccarthy Tetrault Llp
Mount Isa Mines Limited
LandOfFree
Cross correlator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cross correlator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cross correlator will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1242292