Data storage apparatus, assembling method thereof and apparatus for generating tracking position error signal
AssigneeLG Electronics Inc.
InventorsChoong Woo Lee, Young Sik Kim, Jun Moon, Ji Young Jeong, Chung Choo Chung
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Abstract
Disclosed are a data storage apparatus, an assembling method thereof and an apparatus for generating a tracking position error signal capable of storing data using recording media formed with patterns for generating tracking position error signals to obviate errors that may be generated amidst storage of the data, wherein the patterns are formed for generating tracking position error signals on recording media before the recording media and storage are assembled to reduce the manufacturing cost and manufacturing process time.
Claims8
A data storage apparatus, comprising:
- a recording medium formed with a striped first pattern and an inclined second pattern on an upper partial portion of the recording medium;
- and
- a storage unit configured to store data in the recording medium using signals corresponding to where the patterns are detected,
- wherein the striped first pattern is a sync pattern while the inclined second pattern is a servo pattern, and
- wherein a horizontal pitch of the sync pattern is the same as a vertical pitch of the servo pattern.
A data storage apparatus, comprising:
- a recording medium formed with a striped first pattern and an inclined second pattern on an upper partial portion of the recording medium;
- and
- a storage unit configured to store data in the recording medium using signals corresponding to where the patterns are detected,
- wherein the striped first pattern is a sync pattern while the inclined second pattern is a servo pattern, and
- wherein a horizontal pitch of the sync pattern is the same as a horizontal pitch of the servo pattern.
An apparatus for generating a tracking position error signal, comprising:
- a first cantilever unit configured to detect a servo pattern of a recording medium formed with a servo pattern and a sync pattern capable of generating a tracking position error signal, and to output a signal;
- a second cantilever unit configured to output a signal by detecting the sync pattern of the recording medium;
- a first comparator configured to receive the signal outputted by the first cantilever unit and to receive a reference signal, to compare the signal with the reference signal, and to output a signal relative to a comparative result;
- a second comparator configured to receive the signal outputted by the second cantilever unit and to receive the reference signal, to compare the signal with the reference signal, and to output a signal relative to a comparative result;
- a frequency multiplier configured to multiply a frequency of the signal outputted by the second comparator and to output a reference clock signal;
- a counter configured to count the reference clock signal by receiving the reference clock signal of the frequency multiplier and to output a tracking position error signal;
- and
- a digital logic processor configured to receive the signals from the first and second comparators and to output to the counter one signal out of a start signal, a stop signal and a reset signal.
Dependencies are inferred from the claim text.