Rotary magnetic head device

Details Rotary magnetic head device Rotary magnetic head device

1987-07-08

1989-03-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 84, 36013024, G11B 553, G11B 1561

Patent

active

048149179

ABSTRACT:
A rotary magnetic head device for use with a magnetic recording an/or reproducing apparatus, such as a digital audio tape recorder (DAT) or a video tape recorder (VTR), includes a chassis, a fixed shaft secured to the chassis and a drum unit consisting of an upper drum fixed to the upper end of the fixed shaft and a lower rotary drum rotatably mounted by means of a bearing device on the fixed shaft between the upper drum and the chassis. A rotary transformer consisting of an upper fixed core and a lower rotary core is disposed in a recess formed in the lower side of the fixed upper core. The lower core is attached to the lower rotary drum and carries a head attachment plate carrying in turn a magnetic head. The magnetic tape is wrapped about the drum unit over a prescribed wrapping angle. As the lower drum is rotated by an associated driving device, signals may be recorded on or reproduced from the magnetic tape by the magnetic head kept in frictional contact with the running tape.

REFERENCES:
patent: 3863269 (1975-01-01), Akamino
patent: 4641214 (1987-02-01), Imanishi et al.
patent: 4654738 (1987-03-01), Kato et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-482382