Magnetic recording apparatus with power conservation feature
First Claim
1. A magnetic recording apparatus comprising:
- a recording medium in which servo information items are provided on tracks at a predetermined interval;
scanning means for scanning the tracks of the recording medium for recording information;
read/write means for reading/writing data with respect to each of a plurality of recording units on the recording medium through the scanning means;
read means for sequentially reading the servo information items supplied through the scanning means; and
control means for performing control on the basis of the servo information items read out by the read means such that drive power is supplied to the read/write means for a predetermined time period before a time point when the read/write means starts reading/writing of data with respect to a target recording unit, and for preventing supply of the drive power to the read/write means upon completion of the reading/writing of the data by the read/write means.
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Accused Products
Abstract
The magnetic recording apparatus according to the present invention comprises a recording medium in which servo information items are provided on tracks at a predetermined interval, a head for scanning the tracks of the recording medium, a read/write circuit for reading/writing data with respect to each of recording units on the recording medium through the head, a servo circuit for sequentially reading the servo information items through the head, a first control section for performing control on the basis of the servo information items read out by the servo circuit such that drive power is supplied to the read/write circuit, a predetermined time period before a time point when the read/write circuit starts reading/writing of data with respect to a target recording unit, and a second control section for preventing supply of the drive power to the read/write circuit, upon completion of the reading/writing of the data by the read/write circuit.
19 Citations
12 Claims
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1. A magnetic recording apparatus comprising:
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a recording medium in which servo information items are provided on tracks at a predetermined interval; scanning means for scanning the tracks of the recording medium for recording information; read/write means for reading/writing data with respect to each of a plurality of recording units on the recording medium through the scanning means; read means for sequentially reading the servo information items supplied through the scanning means; and control means for performing control on the basis of the servo information items read out by the read means such that drive power is supplied to the read/write means for a predetermined time period before a time point when the read/write means starts reading/writing of data with respect to a target recording unit, and for preventing supply of the drive power to the read/write means upon completion of the reading/writing of the data by the read/write means. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A magnetic recording apparatus comprising:
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a recording medium; scanning means for scanning tracks of the recording medium for recording information; read/write means for reading/writing data with respect to each of a plurality of recording units on the recording medium through the scanning means; a buffer memory for temporarily storing data transferred between the read/write means and an external device; a controller for detecting that the buffer memory is in a situation in which the buffer memory cannot store data any more when the read/write means performs reading, and that the buffer memory is in a situation in which data is not stored in the buffer memory when the read/write means performs writing; and control means for performing control such that supply of drive power to the read/write means is prevented, in response to detection by the controller that the buffer memory cannot store data, and for performing control such that the read/write means is supplied with the drive power for a predetermined time period before a time point when reading/writing of data is started again with respect to a recording unit on which the read/write means failed to perform reading/writing. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification