Title:
MARKER PATTERN GENERATION METHOD, INFORMATION RECORDING MEDIUM, INFORMATION RECONSTRUCTION METHOD, AND INFORMATION RECORDING MEDIUM RECONSTRUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/097837
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing, in reconstruction processing for holographic memory, marker patterns for which sub-pixel position detection is possible even in a data page for which the amount of inter-pixel interference is significant. As an example of means which resolves the problem, a marker pattern generation method is provided with an intermediate pattern generation step and a magnification pattern generation step, wherein: in the intermediate pattern generation step, an intermediate pattern is generated so that, for the intermediate pattern, the covariance value is 0 between the intermediate pattern central portion, which excludes an outer edge comprising pixels adjacent to the boundary of the same, and a partial region, which is inscribed in the boundary of the intermediate pattern; and in the magnification pattern generation step, each recording pixel of the intermediate pattern is substituted with a recording unit in which a plurality of recording pixels of the same polarity as the first-mentioned recording pixel are arrayed in the row-direction and/or the column-direction.
Inventors:
IIZUKA JYUNYA (JP)
Application Number:
PCT/JP2013/085031
Publication Date:
July 02, 2015
Filing Date:
December 27, 2013
Export Citation:
Assignee:
HITACHI CONSUMER ELECTRONICS (JP)
International Classes:
G11B7/0065; G03H1/26
Domestic Patent References:
| WO2006093254A1 | 2006-09-08 |
Foreign References:
| JP2008536158A | 2008-09-04 | |||
| JP2010003358A | 2010-01-07 |
Attorney, Agent or Firm:
INOUE, Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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