STORAGE DEVICE HAVING WRITE SIGNAL WITH MULTIPLE-SLOPE DATA TRANSITION
First Claim
1. An apparatus comprising:
- control circuitry adapted for association with a read/write head configured to read data from and write data to a storage disk, the control circuitry being configured to process data received from and supplied to the read/write head;
wherein the control circuitry comprises;
a write driver configured to generate a write signal for data to be written to the storage disk; and
a multiple-slope transition controller associated with the write driver and configured to control a data transition in said write signal such that said data transition comprises at least two different segments each having a different slope, said multiple-slope transition controller comprising separate slope control mechanisms for each of said segments.
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Accused Products
Abstract
A hard disk drive or other disk-based storage device comprises a storage disk, a read/write head configured to read data from and write data to the disk, and control circuitry coupled to or otherwise associated with the read/write head. The control circuitry comprises a write driver configured to generate a write signal for data to be written to the storage disk, and a multiple-slope transition controller associated with the write driver and configured to control a data transition in the write signal such that the data transition comprises at least two different segments each having a different slope, with the transition controller comprising separate slope control mechanisms for each of the segments. By way of example, the data transition may comprise a dual-slope transition having first and second segments arranged sequentially between a start point and an end point of the data transition.
13 Citations
20 Claims
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1. An apparatus comprising:
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control circuitry adapted for association with a read/write head configured to read data from and write data to a storage disk, the control circuitry being configured to process data received from and supplied to the read/write head; wherein the control circuitry comprises; a write driver configured to generate a write signal for data to be written to the storage disk; and a multiple-slope transition controller associated with the write driver and configured to control a data transition in said write signal such that said data transition comprises at least two different segments each having a different slope, said multiple-slope transition controller comprising separate slope control mechanisms for each of said segments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method comprising the steps of:
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receiving data to be written to a storage disk of a storage device; and generating a write signal for the data to be written to the storage disk, the write signal having a plurality of data transitions, with at least one of said data transitions comprising at least two different segments each having a different slope; wherein the generating step comprises separately controlling each of said segments. - View Dependent Claims (19)
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20. A processing system comprising:
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a processing device; and a storage device coupled to the processing device and comprising at least one storage disk; wherein the storage device further comprises; a read/write head configured to read data from and write data to the storage disk; and control circuitry configured to process data received from and supplied to the read/write head; the control circuitry comprising; a write driver configured to generate a write signal for data to be written to the storage disk; and a multiple-slope transition controller associated with the write driver and configured to control a data transition in said write signal such that said data transition comprises at least two different segments each having a different slope, said multiple-slope transition controller comprising separate slope control mechanisms for each of said segments.
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Specification