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:
Apr. 03, 1990
Filed:
Jan. 30, 1989
Jurgen Kaaden, Villingen-Schwenningen, DE;
Hermann Link, VS-Obereschach, DE;
Deutsche Thomson-Brandt GmbH, VS-Villingen, DE;
Abstract
The invention concerns a videorecorder with a rotating head drum (KT) that has video heads (K1 & K2) with a magnetic tape (B) looped partly around them mounted on it, with at least one pulse generator (M) mounted on the head drum, with at least one sensor (S) that generates a head-shift signal that switches from one video head to the other, and with a control head (KK) for scanning the vertical-synchronization signal during playback. In the playback mode the time between the signal supplied to the sensor and the vertical-synchronization signal is measured and compared with a reference, and a criterion for controlling the position in time of the head-shift signal is derived from the comparison.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile