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US 2014/0177084 A1Published application
Systems and Methods for Managed Operational Marginalization
AssigneeLSI Corporation
InventorsJefferson Singleton, Shaohua Yang
Life of this patent
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Abstract
Systems, methods, devices, circuits for data processing, and more particularly to data processing including operational marginalization capability.
Claims21
A data processing system, the data processing system comprising:
- a known data based noise injection circuit operable to:
- calculate a noise component based upon a data input and a corresponding known pattern;
- add a noise value derived from the noise component to a corresponding instance of the data input to yield a noise injected output;
- and
- select one of the data input and the noise injected output as a processing input;
- a detector circuit operable to apply a data detection algorithm to the processing input to yield a detected output;
- and
- a bit error rate monitor circuit operable to generate a bit error rate based at least in part on a combination of the known pattern and the detected output.
5 more elements
(canceled)
A method for data processing, the method comprising:
- receiving a data input at a noise injection circuit;
- calculating a difference between the data input and a known pattern by the noise injection circuit to yield a noise component;
- adding a noise value derived from the noise component to a corresponding instance of the data input to yield a noise injected output;
- selecting one of the noise injected output and the data input as a processing input;
- and
- applying a data detection algorithm to the processing input to yield a detected output;
- and
- using a bit error rate monitor circuit to generate a bit error rate based at least in part on a combination of the known pattern and the detected output.
5 more elements
A storage device, the storage device comprising:
- a storage medium operable to maintain a known read pattern;
- a head assembly disposed in relation to the storage medium and operable to provide a sensed signal corresponding to the known read pattern on the storage medium;
- a read channel circuit including:
- an analog front end circuit operable to provide an analog signal corresponding to the sensed signal;
- an analog to digital converter circuit operable to sample the analog signal to yield a series of digital samples;
- an equalizer circuit operable to equalize the digital samples corresponding to the data set to yield a sample set;
- a known data based noise injection circuit operable to:
- calculate noise components based upon the sample set and corresponding instances of a known pattern;
- add noise values derived from the noise components to corresponding instances of the sample set yield a noise injected output;
- and
- select one of the data input and the noise injected output as a processing input;
- a detector circuit operable to apply a data detection algorithm to the processing input to yield a detected output;
- and
- a bit error rate monitor circuit operable to generate a bit error rate based at least in part on a combination of the known pattern and the detected output.
11 more elements
Dependencies are inferred from the claim text.