Claims
- 1. In a system for recording signal informatiin on, or reproducing signal information from a magnetic tape medium, the improvement comprising:
- a. means for conveying said magnetic tape medium over a cooperative magnetic head, said head further comprising,
- b. a constant radius of curvature (R.sub.H) along the entire head-to-medium interface, said tape medium having a natural bending radius of curvature (R.sub.B), the head and tape radii of curvature being substantially identical with R.sub.H =R.sub.B, so that, during recording or reproducing signal information, said natural bending radius of said tape medium substantially and uniformly contacts said head radius of curvature and applies a uniform pressure across the full areal dimension of said mutually contacting surfaces,
- c. said head further having leading and trailing medium-contacting edges which are orthogonal to the direction of tape travel and which extend into leading and trailing surfaces which are parallel to each other and normal to the direction of tape travel,
- thereby to lessen the entrainment of air between said medium and said head while simultaneously preserving the aforesaid uniform contact between said hed and said medium so as to insure a uniform wer profile across said head-to-medium interface.
- 2. In the improved system of claim 1, wherein said head is a thin-film head.
- 3. In the improved system of claim 1, wherein said head is comprised of first and second half cores of ferrite material.
Parent Case Info
This application is a continuation of application Ser. No. 138,756, filed Dec. 28, 1987. Application Ser. No. 138,756 has previously been subject to division, and the related co-pending commonly assigned application is application 288,927, filed Dec. 23, 1988.
US Referenced Citations (4)
Foreign Referenced Citations (8)
Number |
Date |
Country |
181263 |
May 1986 |
EPX |
3428800 |
Feb 1986 |
DEX |
1374595 |
Oct 1963 |
FRX |
57-200922 |
Dec 1982 |
JPX |
59-16119 |
Jan 1984 |
JPX |
59-213013 |
Dec 1984 |
JPX |
61-5408 |
Jan 1986 |
JPX |
61-80607 |
Apr 1986 |
JPX |
Non-Patent Literature Citations (2)
Entry |
IBM/TDB, vol. 19, No. 5, Oct. 1976, p. 1885, "Stabilized Wasp-Waist Head", by Nelson et al. |
IEEE Transaction on Magnetics, vol. MAG-17, No. 6, Nov. 1981, "A Simple Tape Wrap Around a Guide", by Clurman. |
Continuations (1)
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Number |
Date |
Country |
Parent |
138756 |
Dec 1987 |
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