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US 2016/0240216 A1Published application
Optimized recording condition for heat-assisted magnetic recording
AssigneeSeagate Technology LLC
InventorsMinjie Ma, Edward Charles Gage, Kaizhong Gao
Life of this patent
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Abstract
An apparatus comprises a controller configured to apply a writing configuration (WC) to a heat-assisted magnetic recording head to write data to a recording medium. The recording medium includes a plurality of sectors. The controller is further configured to determine an optimized WC for each of the plurality of sectors and initiate a write operation to one of the plurality of sectors. The write operation is configured to be performed by the head utilizing the optimized WC for the respective sector.
Claims20
An apparatus comprising:
- a controller configured to apply a writing configuration (WC) to a heat-assisted magnetic recording head to write data to a recording medium comprising a plurality of tracks, wherein each track comprises a plurality of sectors, and wherein the controller is configured to:
- determine an optimized WC for each of the plurality of sectors based on comparison of a calculated difference between bit error rates for each sector to a threshold, wherein a first bit error rate is measured after writing to each of the plurality of sectors using a first WC and a second bit error rate is measured after writing to each of the plurality of sectors using a second WC;
- and
- initiate a write operation to the plurality of sectors, wherein the write operation is configured to be performed by the head utilizing the optimized WC for each of the sectors.
1 more element
A method comprising:
- determining an optimized writing configuration (WC) for performing a write operation with a heat-assisted magnetic recording head for each of a plurality of sectors of a recording medium based on comparison of a calculated difference between bit error rates for each sector to a threshold, wherein a first bit error rate is measured after writing to each of the plurality of sectors using a first WC and a second bit error rate is measured after writing to each of the plurality of sectors using a second WC, wherein the recoding medium comprises a plurality of tracks and each track comprises a plurality of sectors.
An apparatus comprising:
- a controller configured to apply a writing configuration (WC) to a heat-assisted magnetic recording head to write data to a recording medium comprising a plurality of tracks, wherein each track comprises a plurality of sectors, and wherein the controller is configured to:
- determine an optimized WC for each of the plurality of sectors based on comparison of a calculated difference between bit error rates for each sector to a threshold, wherein a first bit error rate is measured after writing to each of the plurality of sectors using a first WC and a second bit error rate is measured after writing to each of the plurality of sectors using a second WC, and wherein the optimized WC comprises a WC that minimizes a triple track bit error rate for each of the plurality of sectors of the recording medium;
- and
- initiate a write operation to the plurality of sectors, wherein the write operation is configured to be performed utilizing the optimized WC for each of the sectors.
1 more element
Dependencies are inferred from the claim text.