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:
Feb. 22, 1994
Filed:
Feb. 14, 1992
Applicant:
Inventors:
Milan V Trcka, Claremont, CA (US);
James S Bacon, Irvine, CA (US);
Jose G Aguilar, Pico Rivera, CA (US);
Assignee:
Datatape Incorporated, Pasadena, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
360 7713 ; 360 7312 ;
Abstract
In a helical scan magnetic tape recorder, a rotary magnetic head scanner includes odd and even azimuth data reproduce heads and odd and even azimuth sense heads on the head wheel to effect automatic tracking. The odd and even azimuth sense heads establish a tracking error signal when reproduced signal envelopes are not equal. The error signal is used to control a capstan servo to maintain correct data head-to-track positioning.