Magnusson, Steven L.; Nichtl-Pecher, Wolfgang;

Transducing head for tape drive

A transducing head (740) for a magnetic tape recorder comprises a first magnetic pole (744) and a second magnetic pole (742) positioned to form a gap therebetween. The first magnetic pole (744) has a first magnetic pole width H3 along the gap and the second magnetic pole (744) has a second magnetic pole width H1 along the gap. The first magnetic pole width H3 and the second magnetic pole width H1 are formed to satisfy the relation H1<H3<3T<H2, wherein H2 is a physical tape contact width of the transducing head and 3T is a width of three adjacent recorded tracks traversed by the head.

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What is claimed is:

1. A transducing head for a magnetic tape recorder comprising:

a first magnetic pole;

a second magnetic pole;

the first magnetic pole and the second magnetic pole positioned to form a gap therebetween;

the first magnetic pole having a first magnetic pole width H3 along the gap and the second magnetic pole having a second magnetic pole width H1 along the gap, the first magnetic pole width H3 and the second magnetic pole width H1 being chosen to satisfy the following relation H1<H3<3T<H2, wherein H2 is a physical tape contact width of the transducing head and 3T is a width of three adjacent recorded tracks traversed by the head.

2. The apparatus of claim 1, wherein at least one of the first magnetic pole and the second magnetic pole comprises a magnetic material and a magnetic thin film.

3. The apparatus of claim 1, wherein at least one of the first magnetic pole and the second magnetic pole comprises a non-magnetic material and a magnetic metal film.

4. A magnetic tape drive comprising a transport system which transports magnetic tape past a transducing head, and wherein the transducing head comprises:

a first magnetic pole;

a second magnetic pole;

the first magnetic pole and the second magnetic pole positioned to form a gap therebetween;

the first magnetic pole having a first magnetic pole width H3 along the gap and the second magnetic pole having a second magnetic pole width H1 along the gap, the first magnetic pole width H3 and the second magnetic pole width H1 being chosen to satisfy the following relation H1<H3<3T<H2, wherein H2 is a physical tape contact width of the transducing head and 3T is a width of three adjacent recorded tracks traversed by the head.

5. The apparatus of claim 4, wherein at least one of the first magnetic pole and the second magnetic pole comprises a magnetic material and a magnetic thin film.

6. The apparatus of claim 4, wherein at least one of the first magnetic pole and the second magnetic pole comprises a non-magnetic material and a magnetic metal film.

7. The apparatus of claim 4, wherein the transducing head is mounted on a rotating scanner.