Claims
- 1. A method of reading data from a data track, said method comprising the steps of:
- providing a head having a coil and a magnetic core associated with said coil, said magnetic core having a center branch and a side branch, said center branch associated with a center magnetic pole piece and a center gap, said side branch associated with a side magnetic pole piece and a side gap;
- positioning said head such that said center gap is located over a first data track to be read by said head and said side gap is located over a second data track adjacent said first data track;
- using said center gap to generate a data signal in a data path extending from said center magnetic pole piece, wherein said data signal comprises data written in said first track and cross-talk from said second track;
- using said side gap to generate a cancellation signal in a side conduction path extending from said side magnetic pole piece, wherein said cancellation signal comprises data written in said second data track;
- attenuating and inverting said cancellation signal; and
- summing said data signal and said cancellation signal.
- 2. The method of reading data according to claim 1, wherein the orientation of said side branch is reversed with respect to said center branch such that said cancellation signal is inverted with respect to said data signal.
- 3. The method of reading data according to claim 2, wherein summing said data signal and said cancellation signal occurs within said magnetic core.
- 4. A method of writing data on a data track with a magnetic flux produced by a head having a center gap associated with a center magnetic pole piece, said method comprising the steps of:
- providing said head, further comprising a side gap, associated with a side magnetic pole piece, located adjacent said center gap;
- positioning said head such that said center gap is located at a first distance over a first data track to be written on by said head and said side gap is located at a second distance over a second data track adjacent said first data track, said first distance being equal to said second distance; and
- using said side gap to generate a second magnetic flux having a polarity opposite to the polarity of said magnetic flux, wherein said second magnetic flux limits spreading of flux lines in said magnetic flux beyond the edges of said first data track.
- 5. The method of writing data according to claim 4, further comprising reducing said second magnetic flux generated by said side gap.
- 6. The method of writing data according to claim 4, wherein said head includes a coil and a magnetic core associated with said coil, said magnetic core having a center branch and a side branch, said center branch associated with said center magnetic pole piece and said center gap, said side branch associated with said side magnetic pole piece and said side gap.
- 7. The method of writing data according to claim 6, further comprising reducing said second magnetic flux generated by said side gap.
- 8. The method of writing data according to claim 7, wherein said side magnetic pole piece has a reduced thickness to reduce said second magnetic flux.
- 9. The method of writing data according to claim 6, wherein the orientation of said side branch is reversed with respect to said center branch such that the polarity of said second magnetic flux is opposite to the polarity of said magnetic flux.
Parent Case Info
This application is a continuation of application Ser. No. 08/412,496, U.S. Pat. No. 5,644,457 filed Mar. 28, 1995, which is a divisional of application Ser. No. 07/984,660, filed Dec. 1, 1992, now U.S. Pat. No. 5,426,539.
US Referenced Citations (14)
Foreign Referenced Citations (1)
Number |
Date |
Country |
4-188406 |
Jul 1992 |
JPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
984660 |
Dec 1992 |
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Continuations (1)
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Number |
Date |
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Parent |
412496 |
Mar 1995 |
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