Data storage device employing differential write data signal and differential write pattern signal
First Claim
1. A data storage device comprising:
- a disk;
a head actuated over the disk;
a first control circuit comprising;
a pattern detector configured to detect at least one pattern in write data and generate a corresponding multi-state signal; and
a transmitter configured to transmit a first differential signal representing the write data and a second differential signal representing the multi-state signal; and
a second control circuit comprising;
a receiver configured to receive the first differential signal and the second differential signal; and
a write driver configured to generate a write current applied to the head based on the first differential signal and configured to adjust at least one property of the write current based on the second differential signal.
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Accused Products
Abstract
A data storage device is disclosed comprising a head actuated over a disk. A first control circuit comprises a pattern detector configured to detect at least one pattern in write data and generate a corresponding multi-state signal, and a transmitter configured to transmit a first differential signal representing the write data and a second differential signal representing the multi-state signal. A second control circuit comprises a receiver configured to receive the first differential signal and the second differential signal, and a write driver configured to generate a write current applied to the head based on the first differential signal and configured to adjust at least one property of the write current based on the second differential signal.
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Citations
14 Claims
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1. A data storage device comprising:
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a disk; a head actuated over the disk; a first control circuit comprising; a pattern detector configured to detect at least one pattern in write data and generate a corresponding multi-state signal; and a transmitter configured to transmit a first differential signal representing the write data and a second differential signal representing the multi-state signal; and a second control circuit comprising; a receiver configured to receive the first differential signal and the second differential signal; and a write driver configured to generate a write current applied to the head based on the first differential signal and configured to adjust at least one property of the write current based on the second differential signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of operating a data storage device, the method comprising:
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detecting at least one pattern in write data and generating a corresponding multi-state signal; transmitting a first differential signal representing the write data and a second differential signal representing the multi-state signal; receiving the first differential signal and the second differential signal; and generating a write current applied to a head actuated over a disk based on the first differential signal and adjusting at least one property of the write current based on the second differential signal. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification