Patent · US Expired

Repositioning laser beams in information storage media

US5235573A · kind A · utility

0Cited by

2References

9Claims

0Family size

Assignee

BASF SE

Inventors

Klaus D. Schomann · Stockach, DE
Peter Hammerschmitt · Eslarn, DE
Sibylle Brosius · Ludwigshafen, DE
Kal-Heinz Feuerherd · Hettenleidelheim, DE
Bernhard Albert · Monsheim, DE
Michael Schmitt · Worms, DE
Michael Acker · Ludwigshafen am Rhein, DE

Key dates

Filing date	Oct 3, 1990
Grant date	Aug 10, 1993
Priority date	—
Expiry date	Oct 3, 2010

Classification

Technology area (CPC G)Physics
CPC primaryG11B33/14
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Moving laser beams from useful tracks to alternative positions in devices in which information is stored optically or magneto-optically. This results in higher signal-to-noise ratios.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.