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:
Jun. 25, 1991
Filed:
Aug. 16, 1989
Wolfgang Fell, Seeheim, DE;
BTS Broadcast Television Systems GmbH, Darmstadt, DE;
Abstract
For setting of the static track angle by the adjustment of the tape pitch with respect to the scanning midplane in an initializing playback operation of a magnetic tape recording and playback equipment the course of signal amplitude over a track exhibited by an envelope signal derived from recorded signals is first used to regulate a capstan servo system so as to place an envelope maximum at a track middle. Then the tape pitch is adjusted by means of the tape guide rollers adjacent to the rotary scanning device so as to bring the envelope signals at the track ends up to the value of the maximum previously placed at the track middle. No special magnetic head is needed for this adjustment method.