Dynamic magnetic information storage or retrieval – Record transport with head moving during transducing – Tape record
Patent
1986-11-06
1988-09-20
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head moving during transducing
Tape record
360118, 360104, 360119, G11B 5024, G11B 5187, G11B 553, G11B 523
Patent
active
047729678
ABSTRACT:
A magnetic recording apparatus of a helical scanning system comprises a rotary cylinder (13), recording heads (A and B) and an erase head (10) attached to slightly project from a rotating surface (13a) of the cylinder (13). The rotary erase head (10) has a gap (4) comprising a ferrite core half (1) and a Sendust film (3) formed on a ferrite core half (2) opposed to the ferrite core half (1) and having a larger saturation magnetic flux density. In addition, the recording heads (A and B) and the rotary erase head (10) are attached on the rotary cylinder (13) so that an end (P1) located forward with respect to the tape travelling direction (11) of the Sendust film (3) may trace the backward side with respect to the tape travelling direction (11), apart by a distance which is a half of the gap length of the rotary erase head (10), as compared with a forward end (Q) of a recorded track pattern ( 15a) formed on a tape (14) by the recording head (A) scanning immediately after erasing by the rotary erase head (10).
REFERENCES:
patent: 4180835 (1979-12-01), Okumura et al.
patent: 4520405 (1985-05-01), Sasaki et al.
Doi Masaru
Ino Kazuo
Ishihara Koso
Okuda Hiroyuki
Shimizu Yoshiaki
Bussan Matthew J.
Sanyo Electric Co,. Ltd.
Wolff John H.
LandOfFree
Magnetic recording apparatus in a helical scan system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic recording apparatus in a helical scan system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording apparatus in a helical scan system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1752402