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.
Patent No.:
Date of Patent:
Jan. 18, 1994
Filed:
Jul. 17, 1992
James S Anderson, Chanhassen, MN (US);
Noel L Allen, Roseville, MN (US);
Durkee B Richards, Stillwater, MN (US);
Theodore A Schwarz, Woodbury, MN (US);
Robert W Tapani, Oakdale, MN (US);
Hung T Tran, Woodbury, MN (US);
Robert J Youngquist, White Bear Lake, MN (US);
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Abstract
A mechanism for accurately following the center of a track includes a voice coil, or a voice coil and stepper motor in combination. The voice coil and stepper motor combination operate to variably position a recording head transversely with respect to the width of the recording tape. The mechanism enables head positioning with very close tolerances due to the ability of the voice coil to finely position the head very accurately on the center of a track.