US 7,321,541 B2 | ||
Information recording method, reproducing method, and recording/reproducing method utilizing holography | ||
Hideyoshi Horimai, Yokohama (Japan) | ||
Assigned to Optware Corporation, Kanagawa (Japan) | ||
Appl. No. 10/530,942 PCT Filed Oct. 09, 2003, PCT No. PCT/JP03/12955 § 371(c)(1), (2), (4) Date Apr. 08, 2005, PCT Pub. No. WO2004/034387, PCT Pub. Date Apr. 22, 2004. |
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Claims priority of provisional application 60/417484, filed on Oct. 09, 2002. | ||
Prior Publication US 2006/0050544 A1, Mar. 09, 2006 | ||
Int. Cl. G11B 7/00 (2006.01) |
U.S. Cl. 369—103 | 14 Claims |
1. An information recording method wherein information is recorded to a recording medium by utilizing an interference pattern
formed by the interference between an information light, which is spatially modulated by digital pattern information displayed
in a spatial light modulator which has a large number of pixels, and reference light for recording, wherein:
digital information that is recorded is digital pattern information and expressed by the matching or mismatching of the attributes
of adjacent pixels in said spatial light modulator wherein:
if the attributes of the adjacent pixels match each other, one of the digital information “0” and “1” is expressed; and
if the attributes of the adjacent pixels do not match each other, another one of the digital information “0” and “1” is expressed.
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