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. 21, 1984
Filed:
Oct. 30, 1981
Masahiko Tsuruta, Yokohama, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A tracking error detection system in a magnetic reproducing apparatus having M rotary heads where M is an integer and M rotary heads respectively and successively scan over oblique tracks on a magnetic tape to reproduce signals, comprises a head moving mechanism for moving at least one rotary head along a height direction thereof, a head moving signal generating circuit for generating a head moving signal having a square wave shape wherein a rise and a fall are obtained for every M.multidot.T interval, where T is a period in which one rotary head scans one track, and applying the head moving signal to the head moving mechanism, and a detecting circuit for comparing a reproduced signal level at a position separated by a predetermined distance from an end part of a track, of a signal reproduced by scanning the track in a state where the rotary head is moved towards one direction by the head moving mechanism, with a reproduced signal level at a position separated by the above predetermined distance from an end part of another track, of a signal reproduced by scanning the other track in a state where the rotary head is moved towards the other direction, and detecting tracking error.