Dynamic magnetic information storage or retrieval – Head – Head accessory
Patent
1989-03-13
1991-02-12
Wolff, John H.
Dynamic magnetic information storage or retrieval
Head
Head accessory
G11B 510, G11B 5127, G11B 541
Patent
active
049929020
ABSTRACT:
A head demagnetizing device has an overall configuration similar to a standard cassette. Within the case is a demagnetizing electromagnet disposed such that it will be juxtaposed to the head to be demagnetized when the cassette-type device is inserted within a tape recorder. Also included in the case are an electrical system for exciting the electromagnet, a switch for connecting the electromagnet to the circuit for exciting the electromagnet, and an operating member that slides with respect to the electromagnet to activate the switch.
Access Corporation
Garcia Alfonso
Teac Corporation
Wolff John H.
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