Patent · US Active

High data density optical recording medium

US8693301B2 · kind B2 · utility

13Cited by

13References

11Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Joachim Knittel · Tuttlingen, DE
Stephan Knappmann · Zimmern ob Rottweil, DE

Key dates

Filing date	Jan 19, 2010
Grant date	Apr 8, 2014
Priority date	—
Expiry date	Jan 23, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG11B7/263
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A high data density optical recording medium, a method and an apparatus for reading such an optical recording medium, and a method for mastering such an optical recording medium are proposed. For achieving a high data density the optical recording medium has marks that have a tip and are covered by a material that generates a detectable effect under the influence of high electric fields.

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