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1. 发明申请

US20130343171A1 OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND METHOD 有权
标题翻译：光信息记录/再现设备和方法
公开(公告)号：US20130343171A1
公开(公告)日：2013-12-26
申请号：US13874551
申请日：2013-05-01
申请人： HITACHI CONSUMER ELECTRONICS CO., LTD.
发明人： Yusuke NAKAMURA
IPC分类号： G11B7/0065
CPC分类号： G11B7/0065 , G11B7/00772 , G11B7/128 , G11B7/1369 , G11B7/13925
摘要： There is disclosed an optical information recording/reproducing apparatus for optically recording and/or reproducing information in and from an optical recording medium. The apparatus has an oscillator light generator for generating oscillator light that is made to overlap and interfere with reproduced light from the optical recording medium, an oscillator light modulator for producing a given phase difference between the oscillator light and the reproduced light, a light detector for detecting interference light in which the oscillator light and the reproduced light overlap each other, a wavefront deviation detector for detecting an amount of wavefront deviation between the oscillator light and the reproduced light from an output from the light detector, and a compensation amount calculation unit for calculating a wavefront compensation amount from the amount of wavefront deviation. The phase difference produced by the oscillator light modulator is controlled based on the wavefront compensation amount.
摘要翻译：公开了一种用于在光学记录介质中光学记录和/或再现信息的光学信息记录/再现装置。该装置具有用于产生振荡器光的振荡器光发生器，该振荡器光与光记录介质重现并干扰再生光;振荡器光调制器，用于产生振荡器光与再生光之间的给定相位差;光检测器，检测振荡器光和再现光彼此重叠的干涉光;波前偏差检测器，用于从光检测器的输出检测振荡器光和再现光之间的波前偏移量;以及补偿量计算单元，从波前偏差量计算波前补偿量。基于波前补偿量来控制由振荡器光调制器产生的相位差。

2. 发明申请

US20180033461A1 OPTICAL INFORMATION RECORDING DEVICE AND OPTICAL INFORMATION RECORDING METHOD 有权
公开(公告)号：US20180033461A1
公开(公告)日：2018-02-01
申请号：US15552504
申请日：2015-03-04
申请人： HITACHI CONSUMER ELECTRONICS CO., LTD.
发明人： Masakazu IKEDA , Jyunya IIZUKA , Yusuke NAKAMURA
IPC分类号： G11B20/18 , G11B7/0065
CPC分类号： G11B20/18 , G03H1/02 , G03H1/0402 , G03H1/2202 , G03H1/26 , G03H2001/0224 , G03H2001/2244 , G11B7/0065 , G11B20/1217 , G11B20/1403 , G11B20/1866 , G11B2020/1476
摘要： An error correction block generated by performing error correction coding to the user data is divided into b number of sectors (b: a natural number), each sector having a number of bits (a: a natural number), the sector is divided into c number of sub-sectors (c: a natural number) and bits are distributed to each of the c number of sub-sectors, arrangement order of the bits is randomized for each sub-sector to which the bits are distributed, the c number of sub-sectors in which the arrangement order of the bits is randomized are combined to generate an interleaved sector, the interleaved sector is divided into c/d (d: a natural number, c≠d, and c>d) and e number of divided interleaved sectors (e: a natural number, e≠b, and b>e) are combined to generate a pre-modulation block, which is modulated by a modulation rule.

3. 发明申请

US20140003221A1 OPTICAL INFORMATION RECORDING AND REPRODUCING METHOD AND DEVICE 有权
标题翻译：光信息记录和再现方法和装置
公开(公告)号：US20140003221A1
公开(公告)日：2014-01-02
申请号：US13901601
申请日：2013-05-24
申请人： Hitachi Consumer Electronics Co., Ltd.
发明人： Taku HOSHIZAWA , Yusuke NAKAMURA
IPC分类号： G11B7/007
CPC分类号： G11B7/00772 , G11B7/0065 , G11B7/00781
摘要： Disclosed is an optical information recording and reproducing device capable of recording an interference fringe pattern as a hologram in an optical information recording medium, the interference fringe pattern being formed by a signal beam superimposed with signal information and a reference beam, and also capable of reproducing the signal information from the optical information recording medium, the device having a light source unit to emit light, a light splitting unit to split the light into the reference beam and the signal beam, a spatial light modulation unit to superimpose the signal information on the signal light, and a light detection unit to detect an image reproduced by the reference beam, wherein information about defects on the spatial light modulation unit is recorded in the optical information recording medium.
摘要翻译：公开了一种光信息记录和再现装置，其能够在光信息记录介质中记录作为全息图的干涉条纹图案，干涉条纹图案由与信号信息和参考光束叠加的信号光束形成，并且还能够再现来自光学信息记录介质的信号信息，具有用于发光的光源单元的设备，将光分成参考光束的光分离单元和信号光束，将信号信息叠加在信号光和光检测单元，用于检测由参考光束再现的图像，其中关于空间光调制单元上的缺陷的信息被记录在光学信息记录介质中。

4. 发明申请

US20150085633A1 OPTICAL INFORMATION RECORDING APPARATUS AND OPTICAL INFORMATION RECORDING METHOD 有权
标题翻译：光信息记录装置和光信息记录方法
公开(公告)号：US20150085633A1
公开(公告)日：2015-03-26
申请号：US14452599
申请日：2014-08-06
申请人： Hitachi-LG Data Storage, Inc. , Hitachi Consumer Electronics Co., Ltd.
发明人： Atsushi NEO , Junya IIZUKA , Yusuke NAKAMURA , Kazuyuki TAJIMA
IPC分类号： G11B7/1353
CPC分类号： G11B7/0065 , G11B7/128 , G11B7/1353 , G11B7/1381 , G11B2007/0009
摘要： 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.
摘要翻译：一种光信息记录装置，被配置为通过使用全息术将信息记录到信息记录介质中，该装置包括：信号生成单元，被配置为生成二维数据; 以及二维空间光调制器单元，被配置为显示所述二维数据并空间调制发射或反射的光束，其中所述二维空间光调制器单元包括信号区域和外部区域，所述信号区域显示两个基于用户数据的二维数据，外部区域显示不包括用户数据的二维数据，并且信号生成单元以这样的方式生成二维数据，即在外部区域上显示的二维数据的频率变得等于或大于在信号区域上显示的二维数据的频率。

5. 发明申请

US20130128714A1 OPTICAL INFORMATION RECORDING APPARATUS, OPTICAL INFORMATION REPRODUCING APPARATUS, OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS, OPTICAL INFORMATION RECORDING METHOD, OPTICAL INFORMATION REPRODUCING METHOD AND OPTICAL INFORMATION RECORDING/REPRODUCING METHOD 有权
标题翻译：光信息记录装置，光信息再现装置，光信息记录/再现装置，光信息记录方法，光信息再现方法和光信息记录/再现方法
公开(公告)号：US20130128714A1
公开(公告)日：2013-05-23
申请号：US13675062
申请日：2012-11-13
申请人： Hitachi Consumer Electronics Co., Ltd.
发明人： Yusuke NAKAMURA , Toshiki ISHII
IPC分类号： G11B7/0065
CPC分类号： G11B7/0065 , G11B7/13925
摘要： The above-described problem can be solved by the following optical-information reproducing apparatus: An optical-information reproducing apparatus for reproducing a hologram storage medium into which an interference pattern is recorded as a hologram, the interference pattern being formed by causing a reference beam and a signal beam to interfere with each other, the optical-information reproducing apparatus, including an optical detector for detecting a reproduced beam, the reproduced beam being acquired by illuminating the recorded hologram with the reference beam, an optical element for generating a first reference beam and a second reference beam by branching the reference beam, a wavefront detector for detecting wavefront aberration of the reference beam by causing the first reference beam and the second reference beam to interfere with each other, and a wavefront compensator for compensating the wavefront of the reference beam, wherein the wavefront compensator is adjusted based on an output of the wavefront detector.
摘要翻译：上述问题可以通过以下光信息再现装置来解决：一种用于再现全息图存储介质的光信息再现装置，其中将干涉图案记录为全息图，干涉图案是通过使参考光束以及信号光束彼此干涉的光信息再现装置，包括用于检测再现光束的光检测器，通过用参考光束照射所记录的全息图获得的再现光束，用于产生第一参考的光学元件以及通过使参考光束分支的第二参考光束，用于通过使第一参考光束和第二参考光束相互干扰来检测参考光束的波前像差的波前检测器，以及用于补偿参考光束的波前的波前补偿器参考光束，其中基于o调整波前补偿器 n是波前检测器的输出。

6. 发明申请

US20180012624A1 OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE, OPTICAL INFORMATION REPRODUCING DEVICE, AND OPTICAL INFORMATION REPRODUCING METHOD 有权
公开(公告)号：US20180012624A1
公开(公告)日：2018-01-11
申请号：US15544028
申请日：2015-02-23
申请人： HITACHI CONSUMER ELECTRONICS CO., LTD.
发明人： Kazuyuki TAJIMA , Yusuke NAKAMURA
IPC分类号： G11B7/0065 , G03H1/04
CPC分类号： G11B7/0065 , G03H1/04 , G03H1/0402 , G03H1/22 , G03H1/26 , G03H2001/0417 , G03H2001/0441 , G11B20/10046 , G11B2007/00653
摘要： An optical information recording/reproducing device which records an interference pattern between a reference beam and a signal beam as a hologram in an optical information storage medium or reproduces information from the optical information storage medium, the optical information recording/reproducing device includes a light source unit which emits a light beam, a signal-beam/reference-beam optical unit which generates the signal beam and the reference beam from the light beam and irradiates the optical information storage medium, a spatial light modulator which adds information to the generated signal beam, a photodetection unit which detects a reproduced beam from the optical information storage medium and acquires a reproduced image constituted by a plurality of pixels arrayed in a lattice shape, and a signal processing unit which performs equalization processing to a first pixel of the reproduced image to have a target characteristic.

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