The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 25, 1985

Filed:

Jul. 19, 1979
Applicant:
Inventor:

Thomas Meek, Hull, GB;

Assignee:

Norwood Industries, Inc., Salt Lake City, UT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 63 ; 360 65 ; 360 73 ;
Abstract

A record and playback apparatus for use with magnetic tape cassettes and the like can be switched between the normal two track cassette format for either record or playback or single track format for either record or playback. The apparatus provides optimum record and bias signals to the record head gaps being used regardless of whether two record head gaps are used for standard format or a single record head gap is used for single track format. The apparatus also preferably includes motor speed switching and regulating circuitry so that the apparatus can be satisfactorily operated at normal cassette speed or at a reduced speed, preferably one quarter that of normal speed. Switching of play and record equalization as well as record bias is also preferably included with the speed switching.


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