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US 2016/0210996 A1Published application
Systems and Methods for Multi-Track Media Defect Detection
AssigneeAvago Technologies General IP (Singapore) Pte. Ltd.
InventorsWeijun Tan, Shaohua Yang
Life of this patent
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Abstract
Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for data processing to identify a defect on a medium.
Claims20
A media defect detection system, the system comprising:
- a media defect detector circuit operable to:
- generate a first defect indicia for a location on a first track of a storage medium, wherein the first defect indicia includes a first division product and a first low pass filtered value each generated based upon data from the first track, and
- generate a second defect indicia for a location on a second track of the storage medium, wherein the location on the second track corresponds to the location on the first track;
- and
- a multi-track defect combining circuit operable to generate a media defect signal based upon both the first defect indicia and the second defect indicia.
2 more elements
A method for identifying media defects on a storage medium, the method comprising:
- accessing a first data set from a first track of a storage medium;
- accessing a second data set from a second track on the storage medium;
- generating a first defect indicia for a location on the first track based upon the first data set, wherein the first defect indicia includes a first division product and a first low pass filtered value each generated based upon data from the first track;
- generating a second defect indicia for a location on the second track based upon the second data set, wherein the location on the second track corresponds to the location on the on the first track;
- and
- generating a media defect signal based upon both the first defect indicia and the second defect indicia.
3 more elements
A media defect detection system, the system comprising:
- a storage medium including at least a first track and a second track;
- a means for:
- generating a first defect indicia for a location on the first track wherein the first defect indicia includes a first division product and a first low pass filtered value each generated based upon data from the first track, and
- generating a second defect indicia for a location on the second track, wherein the second defect indicia includes a second division product and a second low pass filtered value each generated based upon data from the second track, and wherein the location on the second track corresponds to the location on the first track;
- and
- a means for generating a media defect signal based upon both the first defect indicia and the second defect indicia.
3 more elements
Dependencies are inferred from the claim text.