METHOD AND APPARATUS FOR RECORDING TO AND READING FROM A DIFFRACTIVE OPTICS MEMORY USING SYMMETRICAL ANGULAR ENCODING

Details for Australian Patent Application No. 2002256698 (hide)

Owner DISCOVISION ASSOCIATES

Inventors MEYRUEIS, Patrick; EL HAFIDI, Idriss; GRZYMALA, Romualda; FONTAINE, Joel

Pub. Number AU-A-2002256698

PCT Pub. Number WO2003/081580

Filing date 21 March 2002

Wipo publication date 8 October 2003

International Classifications

G11B 007/0065 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power

G11B 007/135 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - Means for guiding the beam from source to record carrier or from record carrier to detector

G11C 013/04 Digital stores characterised by the use of storage elements not covered by groups , , or - using optical elements

G03H 001/26 Holographic processes or apparatus using light, infra-red, or ultra-violet waves for obtaining holograms or for obtaining an image from them - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique

Event Publications

13 November 2003 Application Open to Public Inspection

  Published as AU-A-2002256698

9 December 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

Legal

The information provided by the Site not in the nature of legal or other professional advice. The information provided by the Site is derived from third parties and may contain errors. You must make your own enquiries and seek independent advice from the relevant industry professionals before acting or relying on any information contained herein. Check the above data against the Australian Patent Office AUSPAT database.

Next and Previous Patents/Applications

2002256699-PROCESS FOR THE PREPARATION FO POLYURETHANE FOAMS

2002256697-SOFTENER COMPOSITIONS AND THEIR USE