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:
Jul. 28, 1992
Filed:
Sep. 28, 1988
Dieter Baas, Kehl, DE;
Deutsche Thomson-Brandt GmbH, Villingen-Schwenningen, DE;
Abstract
A method for skipping tracks in apparatus playing back data that is readable from data-storage tracks on a recording medium by an optical scanner when a base of light is positioned on the tracks by a tracking circuit. The optical scanner is shifted from one data track to another by a skipping pulse during a track-skipping procedure, and is halted in place there by a braking pulse. The tracking circuit is opened not prior to the beginning of the skipping pulse and not later than the departure from the data-storage track. The optical scanner is braked by a first braking pulse of constant length and amplitude, but which is too small. A second braking pulse is produced with pulse characteristics dependent on the time that elapses until a predetermined point on the next data-storage is arrived at. The second braking pulse thereby halts the scanner in the middle of the next data-storage track. The tracking circuit is then closed, but not prior to the beginning of the second braking pulse and not later than the middle of the next data-storage track.