Control device and storage device
First Claim
1. A control device that controls a storage device having an auto-gain-control function for controlling strength of an output signal from a head that reads data from a storage medium, the control device comprising:
- a determining unit that determines whether the strength of the output signal controlled by the auto-gain-control function is within a predetermined range;
a detecting unit that detects an abnormal float of the head based on a determination made by the determining unit;
a counting unit that counts a number of times the detecting unit detects abnormal float of the head; and
a storing unit that stores the number of times of the abnormal floats counted by the counting unit into a storage area of the storage device.
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Accused Products
Abstract
A control device that controls a storage device having an auto-gain-control function for controlling strength of an output signal from a head that reads data from a storage medium, which includes a determining unit that determines whether the strength of the output signal controlled by the auto-gain-control function is within a predetermined range, an abnormal-float detecting unit that detects an abnormal float of the head based on a result from the determining unit, an abnormal-float-number counting unit that counts a number of times of the detected abnormal floats of the head, and an abnormal-float-count storing unit that stores the counted number of times of the abnormal floats into a storage area of the storage device.
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Citations
19 Claims
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1. A control device that controls a storage device having an auto-gain-control function for controlling strength of an output signal from a head that reads data from a storage medium, the control device comprising:
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a determining unit that determines whether the strength of the output signal controlled by the auto-gain-control function is within a predetermined range; a detecting unit that detects an abnormal float of the head based on a determination made by the determining unit; a counting unit that counts a number of times the detecting unit detects abnormal float of the head; and a storing unit that stores the number of times of the abnormal floats counted by the counting unit into a storage area of the storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A storage device having an auto-gain-control function for controlling strength of an output signal from a head that reads data from a storage medium, the storage device comprising:
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a determining unit that determines whether the strength of the output signal controlled by the auto-gain-control function is within a predetermined range; a detecting unit that detects an abnormal float of the head based on determination made by the determining unit; a counting unit that counts a number of times the detecting unit detects abnormal float of the head; and a storing unit that stores therein the number of times of the abnormal floats counted by the counting unit into a storage area of the storage device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A control method for controlling a storage device having an auto-gain-control function for controlling strength of an output signal from a head that reads data from a storage medium, the control method comprising:
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determining whether the strength of the output signal controlled by the auto-gain-control function is within a predetermined range; detecting an abnormal float of the head based on a determination made at the determining; counting a number of times of the abnormal floats of the head detected at the detecting; and storing the number of times of the abnormal floats counted at the counting into a storage area of the storage device.
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Specification