Magnetic disk read/write circuit having core coils of opposite phase
AssigneeHitachi Electronics Engineering Co., Ltd.
InventorsKenichi Shitara, Kazuo Honma
Life of this patent
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Abstract
A magnetic disk read/write circuit comprises a core having a pair of coils wound such that signals supplied to the coils becomes opposite in phase and a read circuit having a first input terminal connected to one of terminals of a read head through one of the coils to receive a read signal from the read head and a second input terminal connected to the other terminal of the read head through the other coil to receive the read signal from the read head or a write circuit in which the read head is a write head, the signal at the first input terminal is a signal at the first output terminal and the signal at the second input terminal is a signal at a second input terminal.
Claims11
A magnetic disk read/write circuit connected to a complex magnetic head including a write head and a read head mounted on a single slider, comprising:
- a core having a pair of coils wound such that signals supplied to said coils become opposite in phase;
- and
- a read circuit having a first input terminal connected to one of terminals of a read head through one of said coils to receive a read signal from said read head and a second input terminal connected to the other terminal of said read head through the other coil to receive the read signal from said read head.
A magnetic disk read/write circuit connected to a complex magnetic head including a write head and a read head mounted on a single slider, comprising:
- a core having a pair of coils wound such that signals supplied to said coils become opposite in phase;
- and
- a read circuit having a first input terminal connected to one of terminals of a read head through one of said coils to receive a read signal of positive phase from said read head and a second input terminal connected to the other terminal of said read head through the other coil to receive the read signal of negative phase from said read head.
A magnetic disk read/write circuit comprising;
- a core having a pair of coils wound such that signals supplied to said coils become opposite in phase;
- and
- a write circuit having a first output terminal connected to one of terminals of a write head through one of said coils and a second output terminal connected to the other terminal of said write head through the other coil, for writing data in a magnetic disk through said write head.
Dependencies are inferred from the claim text.