Patent · US Active

Holographic storage system with improved data page quality

US8208184B2 · kind B2 · utility

0Cited by

6References

4Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Joachim Knittel · Tuttlingen, DE
Frank Przygodda · Villingen-Schwenningen, DE

Key dates

Filing date	Oct 2, 2009
Grant date	Jun 26, 2012
Priority date	—
Expiry date	Jun 29, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG11B2007/13727
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A holographic storage system having an improved data page quality is described. The holographic storage system includes a special optical filter or a special light source for emphasizing the high frequency components of a reference beam and/or an object beam. This is achieved by an optical filter arranged in a Fourier plane, which has a higher attenuation at the center than at the edge. Alternatively, an adapted light source for generating the reference beam and/or the object beam is arranged in a Fourier plane. The light beam emitted by the light source has a higher intensity close to the edge than at the center.

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