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:
May. 06, 2008
Filed:
Jul. 14, 2004
Toshiyuki Murayama, Kanagawa, JP;
Toshiyuki Murayama, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A reproducing apparatus comprises detecting meansandfor detecting levels of pilot signals recorded on tracks from reproduced signals reproduced by magnetic headsA,B, a calculating meansfor calculating a ratio between levels detected by the detecting meansandwith respect to the pilot signals recorded on two tracks at both sides of the track traced by the magnetic headsA,B and a judging meansfor judging an off-track amount of the magnetic head from the value of the ratio calculated by the calculating means, wherein tracking can be effected on the magnetic headsA,B in response to the off-track amount judged by the judging means. In a reproducing apparatus like a VCR (video cassette recorder) in which a magnetic head traces tracks on a tape-like recording medium, tracking can be effected on the magnetic head quickly in a short period of time.