RECORD CARRIER ON WHICH INFORMATION IS STORED IN AN OPTICALLY READABLE STRUCTURE

RECORD CARRIER ON WHICH INFORMATION IS STORED IN AN OPTICALLY READABLE STRUCTURE

A record carrier is described on which information is stored in an optically readable structure of trackwise arranged areas and intermediate areas. By giving at least one of the surfaces of the record carrier body excursions which are periodically variable in the track direction, it is possible in a...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: BOUWHUIS, GIJSBERTUS, VELZEL, CHRISTIAAN H, F
Format: Patent
Sprache:eng ; fre
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A record carrier is described on which information is stored in an optically readable structure of trackwise arranged areas and intermediate areas. By giving at least one of the surfaces of the record carrier body excursions which are periodically variable in the track direction, it is possible in a simple manner to obtain an indication of the focussing of the read beam on the information structure during reading of the record carrier.