Recording method and information medium for a plurality of longitudinal track bundles enabling tracking during recording and/or playback of track bundles

US5917671A · kind A · utility

Assignee

• Deutsche Thomson-Brandt GmbH · DE

Inventors

• Juergen Kaaden · Villingen, DE
• Andreas Kluger · Hannover, DE
• Martin Kuner · Donaueschingen, DE
• Peter Mahr · Cochem, DE
• Klaus Oldermann · Villingen-Schwenningen, DE
• Hartmut Peters · Barsinghausen, DE
• Gerhard Reiner · Villingen-Schwenningen, DE
• Werner Scholz · Duisburg, DE
• Friedrich Timmermann · Garbsen, DE
• Bernd Wessolly · Hemmingen, DE

Key dates

• Filing date: Mar 10, 1997
• Grant date: Jun 29, 1999
• Expiry date: Mar 10, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G11B11/10584
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

The invention relates to a method for recording longitudinal track bundles on an information medium. The method involves recording tracking information in special tracks in said track bundles. The special tracks are contiguous between each other. When recording a new track bundle a recording and/or reading head may be positioned using tracking information contained in special tracks of a previously recorded track bundle. Several examples of patterns used for coding tracking information in the special tracks we described.