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.:
Date of Patent:
Jul. 14, 2015
Filed:
Aug. 06, 2014
Hitachi-lg Data Storage, Inc., Tokyo, JP;
Hitachi Consumer Electronics Co., Ltd., Yokohama, Kanagawa, JP;
Atsushi Neo, Tokyo, JP;
Junya Ilzuka, Tokyo, JP;
Yusuke Nakamura, Tokyo, JP;
Kazuyuki Tajima, Tokyo, JP;
HITACHI-LG DATA STORAGE, INC., Tokyo, JP;
HITACHI CONSUMER ELECTRONICS CO., LTD., Kanagawa, JP;
Abstract
An optical information recording apparatus configured to record information into an information recording medium by using holography, the apparatus including: a signal generation unit configured to generate two-dimensional data; and a two-dimensional spatial light modulator unit configured to display the two-dimensional data and to spatially modulate a transmitted or reflected beam, wherein the two-dimensional spatial light modulator unit includes a signal region and an external region, the signal region displays two-dimensional data based on user data, the external region displays two-dimensional data not including the user data, and the signal generation unit generates two-dimensional data in such a manner that a frequency of the two-dimensional data displayed on the external region becomes equal to or larger than a frequency of the two-dimensional data displayed on the signal region.