Magnetic head and rotary head drum device

Details Magnetic head and rotary head drum device Magnetic head and rotary head drum device

2005-10-11

2005-10-11

Watko, Julie Anne (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Head accessory

Reexamination Certificate

active

06954334

ABSTRACT:
A magnetic head mounted on a rotary head drum device comprises a head chip, and a magnetic shield disposed to surround all or a part of the surfaces other than a front surface of the head chip. The magnetic shield comprises a magnetic flux absorber made of ferrite and an electromagnetic wave shield made of copper. This enables a reduction of the amount of unnecessary magnetic fluxes and electromagnetic waves jumping away from the recording head to the reproducing head. Simultaneously, the magnetic flux absorber absorbs the magnetic flux coming from outside to the reproducing head before the magnetic flux reaches the head chip and the electromagnetic wave shield shields a high frequency electromagnetic wave which was not absorbed by the magnetic flux absorber80that it is possible to reduce the amount of the magnetic flux or the like jumping into the reproducing head and to improve the S/N of the reproduced signal.

REFERENCES:
patent: 4636902 (1987-01-01), Dalziel et al.
patent: 4816950 (1989-03-01), Heinz et al.

Affiliated with

Also associated with

Rating

Magnetic head and rotary head drum device 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 head and rotary head drum device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic head and rotary head drum device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3444806