MULTIPLE LAYER OPTICAL STORAGE DEVICE

WIPO Patent Application WO2002063620

A3

A multi-layer optical information storage system comprising several layers of generally flat waveguide, arranged one on top of the other in a stack. The reading energy is projected through the layers perpendicularly, and is focussed onto the layer to be read. A detector disposed at the side of the layers detects the energy scattered or reflected from information or data points within the layer. The points within the layers may be in the form of defects of a type that can carry the information assigned to each point, generally by means of the presence or absence of the defect. The energy scattered or reflected from the defects in any specific layer is preferably contained within that layer because of waveguiding properties imparted to the layers by means of a graded or stepped index structure.

JP4523470	Optical information recorder and method and signal processing circuit
JP2006338736	OPTICAL DISK APPARATUS
JP2000155945	OPTICAL RECORDING METHOD

ARIELI YOEL (IL)
WOLFLING SHAY (IL)

PCT/IL2002/000096

January 03, 2003

February 05, 2002

Click for automatic bibliography generation  

NANO OR TECHNOLOGIES ISRAEL LT (IL)
ARIELI YOEL (IL)
WOLFLING SHAY (IL)

G11B7/0045; G11B7/005; G11B7/0055; G11B7/007; G11B7/013; G11B7/13; G11B7/24; G11B7/26; G11B7/00; (IPC1-7): G11B7/24; G11B7/005; G11B7/00; G11B7/12

US5677903A	1997-10-14
US5538773A	1996-07-23
EP0446063A1	1991-09-11
EP0510284A1	1992-10-28
US5619371A	1997-04-08

PATENT ABSTRACTS OF JAPAN vol. 012, no. 046 (P - 665) 12 February 1988 (1988-02-12)
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 03 30 March 2000 (2000-03-30)
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 03 3 April 2002 (2002-04-03)

View/Download PDF      PDF Help

Previous Patent: CORRECTION METHOD, CORRECTION CIRCUIT AND OPTICAL DATA RECORDER

Next Patent: SYSTEM FOR IDENTIFYING AND AUTHENTICATING A DATA RECORDING SUPPORT