Head displacement measuring method and apparatus and data record

Details Head displacement measuring method and apparatus and data record Head displacement measuring method and apparatus and data record

1997-03-28

2000-11-07

Kim, W. Chris

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 31, 360 7704, 360 7706, G11B 2736, G11B 2102, G11B 5596

Patent

active

061445169

ABSTRACT:
In a head displacement measuring method, prior to actual data recording or data reproduction, either one of the recording head and the reproducing head is wobbled, and the test data is recorded in the disk-shaped recording medium by the recording head. Then, the test data is reproduced from the test data by the reproducing head, and displacement between the recording head and the reproducing head is detected on the basis of the reproduced test data. Thus, the displacement may be detected more easily with higher precision than with the conventional optical detecting method.

REFERENCES:
patent: 5060091 (1991-10-01), Matsuzaki
patent: 5231650 (1993-07-01), Satomura
patent: 5488485 (1996-01-01), Amemiya
patent: 5510939 (1996-04-01), Lewis
patent: 5576906 (1996-11-01), Fisher et al.
patent: 5617388 (1997-04-01), Ishioka et al.
patent: 5917672 (1999-06-01), Pham et al.
patent: 5978168 (1999-11-01), Matthews et al.

Affiliated with

Also associated with

Rating

Head displacement measuring method and apparatus and data record does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Head displacement measuring method and apparatus and data record, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head displacement measuring method and apparatus and data record will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1647426