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US 7,184,234 B2Granted
Compensation for jitter in servo signal within data storage device
AssigneeSamsung Electronics Co., Ltd.
InventorJae-Hyeong Kim
Life of this patent
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Abstract
For compensating for jitter within a data storage device in real time, a jitter amount is determined from timings of servo signals for sectors of the data storage device. A timing of a servo gate pulse is adjusted for accessing another sector depending on the jitter amount. Such a jitter amount depends on the eccentricity of a disc having the sectors within the data storage device.
Claims20
A method of compensating for jitter within a data storage device, comprising:
- determining a jitter amount from timings of servo signals for sectors of the data storage device;
- and
- adjusting a timing of a servo gate pulse for accessing another sector, wherein the timing of the servo gate pulse is delayed, sped up, or unchanged depending on the jitter amount.
A data storage device, comprising:
- a jitter measurer for determining a jitter amount from timings of servo signals for sectors of the data storage device;
- and
- a compensator for adjusting a timing of a servo gate pulse for accessing another sectors, wherein the compensator adjusts the timing of the servo gate pulse to be delayed, sped up, or unchanged depending on the jitter amount.
Dependencies are inferred from the claim text.