Return to zero vertical magnetic recording system

Dynamic magnetic information storage or retrieval – General processing of a digital signal – In specific code or form

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

360 39, 360 46, G11B 509

Patent

active

046636765

ABSTRACT:
A return-to-zero (RZ) vertical digital magnetic recording method and apparatus comprising a selectively magnetizable recording medium which includes a recording layer of magnetic material having a low vertical remanence. A magnetic recording head is positioned in close proximity to the recording medium, and relative motion is produced between the recording medium and the recording head. To record data, the recording head is energized with one short duration current pulse for each unit of data to be recorded. The resulting bipolar magnetic write field closes substantially perpendicular through the recording medium thereby producing, in the medium, a similarly bipolar flux configuration having the magnetic transition centered about the gap of the magnetic recording head. Data is represented by these transitions in RZ vertical magnetic recording.

REFERENCES:
patent: 4251842 (1981-02-01), Iwasaki et al.
patent: 4286299 (1981-08-01), Shirakata et al.
patent: 4390907 (1983-06-01), Fujiwara
patent: 4442159 (1984-04-01), Dezawa et al.
IBM Tech. Discl. Bull. vol. 24, No. 8, Jan. 1982, p. 4034, entitled "Vertical Record/Read Magnetic Head" by T. A. Schwarz.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Return to zero vertical magnetic recording 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 Return to zero vertical magnetic recording system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Return to zero vertical magnetic recording system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2401523

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.