Rotary head apparatus with magnetic heads having respective gaps

Details Rotary head apparatus with magnetic heads having respective gaps Rotary head apparatus with magnetic heads having respective gaps

1992-10-27

2000-03-14

Evans, Jefferson

Dynamic magnetic information storage or retrieval

Record transport with head moving during transducing

Tape record

360 76, 360107, G11B 552

Patent

active

060380985

ABSTRACT:
Information signals are recorded on a magnetic tape in parallel tracks that are oriented at an angle from the direction of magnetic orientation of the magnetic tape. Two magnetic heads which perform the recording have respective gaps at azimuth angles which are unequal in magnitude and opposite to each other in polarity. The azimuth angles are selected so that respective reproduction outputs of the magnetic heads are substantially equal and crosstalk between adjacent tracks is reduced below a maximum desired level.

REFERENCES:
patent: 4334252 (1982-06-01), Toriu
patent: 4580180 (1986-04-01), Murakoshi
patent: 4607293 (1986-08-01), Okada et al.
Magnetic Recording Handbook, "The Recording and Reproducing Processes", Barry Middleton, 1990, pp. 75-77.
Tenth IEEE Symposium on Mass Storage Systems May 10, 1990, Monterey, California US pp. 46-50 XP000166451 T.C. Wood `A Survey of DCRSi and D-2 Technology` p. 48, left col., line 1-line 9 figures 6,7; table 1.
IEEE Transactions on Consumer Electronics vol. CE-30, No. 3, Aug. 1984, New York US pp. 360-368 K. Miura et al. `HIFI VCR System` p. 365.
Patent Abstracts of Japan, vol. 10, No. 74 (P-439) (2131) Mar. 25, 1986 & JP-A-60 211 611 (Hitachi Seisakusho K.K.) Oct. 24, 1985.

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