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:
Aug. 04, 1987
Filed:
Aug. 22, 1985
Applicant:
Inventors:
Kyriacos Joannou, Wayland, MA (US);
Daniel C Downs, Framingham, MA (US);
Assignee:
Pericomp Corp., Natick, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
360121 ; 360 25 ; 360137 ;
Abstract
A method of aligning a tape head with the use of a calibration head that is adapted to produce a calibration tape having a pair of spacedly disposed write signals extending substantially normal to the direction of tape travel but at opposite small equal angles to the normal. The calibration tape is passed over the tape head that is to be aligned. The calibration tape is read to detect sequential write signals to determine differences in amplitude therebetween so that the azimuth of the tape head may be adjusted until the detected write signals are of equal amplitude.