The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8760988 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 24, 2014

Filed:

Jan. 29, 2013
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventor:

Yusuke Nakamura, Ebina, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical information recording/reproducing apparatus and an optical information recording/reproducing method that record information using holography, wherein the optical information recording/reproducing apparatus includes a signal generation unit that generates two-dimensional data by a two-dimensional encoding method in which a lower-limit value of a number of continuous ON/OFF pixels in an array in one direction of pixels in a two-dimensional spatial light modulator is K(K≧2, K: natural number); and a pickup that records the two-dimensional data, generated by the signal generation unit, on a hologram disc.


Find Patent Forward Citations

Nakamura, Yusuke. (2014). Optical information recording apparatus, optical information recording method, optical information reproducing apparatus and optical information reproducing method (U.S. Patent No. 8760988). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8760988

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