Dynamic magnetic information storage or retrieval – General recording or reproducing
Patent
1994-02-16
1995-09-12
Hajec, Donald
Dynamic magnetic information storage or retrieval
General recording or reproducing
333172, 358336, 358342, G11B 500
Patent
active
054502527
ABSTRACT:
A hard disk drive includes a head for recording/reproducing data on a recording medium, a motor for moving the head on the recording medium, a motor driver for supplying a driving current to the motor, a data processing circuit for processing data reproduced from the head or record data given to the head, and a cable which has a current line connecting between the motor driver and the motor and a data line connecting between the data processing circuit and the head. The motor has been connected with a noise canceler comprising series-connected first and second filters in parallel with the motor. The connecting point of the first and the second filters of the noise canceler is grounded. A noise generated from the motor driver flows to a ground via the connecting point of the first and the second filters and is cancelled.
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Hajec Donald
Kabushiki Kaisha Toshiba
Wamsley Patrick
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