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US 9,070,405 B2Granted
Signal noise rejection
AssigneeSeagate Technology LLC
InventorsJungWook Hur, TaeYoung Kim
Life of this patent
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Abstract
An implementation of a system disclosed herein provides a method of determining a frequency of baseline noise in a target or read sensor signal and rejecting a band of signals from the target or read sensor signal substantially around the frequency of the baseline noise, including devices to implement this method.
Claims18
A method comprising:
- determining a frequency of baseline noise in a target signal;
- and
- rejecting a band of signals from the target signal substantially around the frequency of the baseline noise by controlling a band-pass digitized value of the frequency of the baseline noise.
A device, comprising:
- a baseline noise frequency detector configured to determine a baseline frequency of a reader baseline noise;
- and
- a band rejection filter configured to reject the baseline noise from a read sensor signal by controlling a band-pass rejecting filter for rejecting a band of signals using a digitized value of the baseline frequency of the reader baseline noise.
A method, comprising:
- determining a frequency of a baseline noise in a target signal;
- converting the frequency of the baseline noise into a digitized frequency value;
- and
- rejecting the baseline noise from the target signal by controlling a band rejection filter using the digitized frequency value.
1 more element
Dependencies are inferred from the claim text.