专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2004347958A Optical information recording apparatus 审中-公开
公开(公告)号：JP2004347958A
公开(公告)日：2004-12-09
申请号：JP2003146261
申请日：2003-05-23
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAGI IKUTAKE , TANABE TAKANARI
IPC分类号： G03H1/28 , G11B7/0065
摘要： PROBLEM TO BE SOLVED: To provide an optical information recording apparatus capable of adding new information to a recorded optical information recording medium.
SOLUTION: The optical information recording apparatus for recording information in an optical information recording medium 1 which has a stacked single mode flat optical waveguide and in which a hologram with guided light as reference light has been formed in each waveguide layer of the stacked optical waveguide includes a spatial optical modulator 4 which forms information on the object beam 2 of a hologram, a transparent high refractive index substrate 5 situated opposite to the optical modulator 4 with the medium therebetween, a means to allow reference light 9 in recording to travel in the high refractive index substrate in a direction nearly reverse to the direction of guided light 7 which is reference light in reproduction, and a means to stack a new waveguide layer on an optical information recording medium.
COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP2004286883A Hologram recording method, hologram recording apparatus, hologram reproducing method, hologram reproducing apparatus and hologram recording and reproducing apparatus 有权
公开(公告)号：JP2004286883A
公开(公告)日：2004-10-14
申请号：JP2003076489
申请日：2003-03-19
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： UENO MASAHIRO , SENDA MASAKATSU , YOSHIKAWA HIROSHI , ANDO YASUKO , TANABE TAKANARI
IPC分类号： G03H1/26 , G11B7/0065
摘要： PROBLEM TO BE SOLVED: To provide a hologram recording and reproducing apparatus which can be easily made small in size. SOLUTION: The hologram recording and reproducing apparatus is equipped with: a light source which emits at least one collimated beam; a spatial light modulator 101 which modulates a part of the collimated beam emitting from the light source and produces object light; a prism 108 which changes the direction of the optical path for one of or both of the object light produced by the spatial light modulator and the reference light obtained from the collimated beam; a lens 102 which condenses the object light and the reference light onto two different points; and a recording medium (recording layer) 103 which records the distribution of light intensity as interference fringes produced in the interference region where the object light and the reference light overlap when the object light and the reference light are condensed onto two different points by the lens 102. The optical system and parts related with the object light and the reference light are adjacently disposed in the same side with respect to the recording medium. COPYRIGHT: (C)2005,JPO&NCIPI

3. 发明专利

JP2004157245A Hologram drawing method and hologram 有权
公开(公告)号：JP2004157245A
公开(公告)日：2004-06-03
申请号：JP2002321271
申请日：2002-11-05
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAGI IKUTAKE , KUROKAWA YOSHIAKI , ENDO KATSUHIRO , TANABE TAKANARI , ANDO YASUKO , IMAI KANEYUKI , KURIHARA TAKASHI
IPC分类号： G03H1/18 , G03H1/02 , G03H1/28 , G03H1/30 , G11B7/0065 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide a hologram drawing method capable of realizing a diffracted light equivalent to that used for drawing gratings of narrow pitches, with a low-cost laser drawing machine which cannot draw extra fine lines, and a hologram.
SOLUTION: Recessed parts or projecting parts are formed in an optical waveguide having a core layer and a clad layer by modulating the thickness of the core layer. At this time, the ridgelines which are the segments lined with the highest points of the projecting parts or the segments lined with the lowest points of the recessed parts are formed in such a manner that the waveguided light being the reference light of the hologram parallels to a perpendicular direction with the direction waveguided by the guided light. Also, if the highest points or lowest points to equal the positions in the perpendicular direction of the highest points of the projecting parts or the lowest points of the recessed parts exists at the two ridgelines on the waveguide hologram, the ridgelines are so formed that the distance in the waveguide direction between the ridgelines attain the wavelength equal to or longer than the wavelength of the waveguided light within the optical waveguide.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2004039137A Optical storage medium reproducing device and optical storage medium 有权
公开(公告)号：JP2004039137A
公开(公告)日：2004-02-05
申请号：JP2002196142
申请日：2002-07-04
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KUROKAWA YOSHIAKI , YAGI IKUTAKE , ENDO KATSUHIRO , IMAI KANEYUKI , TANABE TAKANARI , KURIHARA TAKASHI
IPC分类号： G02B6/42 , G11B7/0065 , G11C17/00
摘要： PROBLEM TO BE SOLVED: To provide a compact and large capacity optical storage medium reproducing device in which many optical storage media are incorporated though it is compact and which can reproduce them. SOLUTION: This device is a reproducing device 100 of an optical storage medium 3 having structure in which one or a plurality of flat type light guide in which diffraction or scatter factor is recorded are laminated and image-forming light diffracted or scattered by a recording factor on the prescribed image-forming plane as a picture, the reproducing device 100 is provided with a medium loading part to which a plurality of optical storage medium 3 are loaded in the direction of lamination of light guide of the optical storage medium 3, and an interface connector 7. Also, such optical storage medium 3 is used that the medium is previously designed so that a image-forming plane coincides with a position of a receiving element of the reproducing device 100 when the optical storage medium 3 is loaded to a slot 31 for loading a medium provided in the reproducing device 100. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2003316244A Apparatus and method for inputting light for light reproducing device 有权
标题翻译：用于光照射装置的输入装置和方法
公开(公告)号：JP2003316244A
公开(公告)日：2003-11-07
申请号：JP2002122551
申请日：2002-04-24
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAGI IKUTAKE , KUROKAWA YOSHIAKI , ENDO KATSUHIRO , TANABE TAKANARI , IMAI KANEYUKI , KURIHARA TAKASHI
IPC分类号： G02B6/122 , G02B5/32 , G03H1/02 , G03H1/22 , G11B7/0065 , G11C13/04
摘要： PROBLEM TO BE SOLVED: To obtain a condensing beam of a sufficient length without increasing the size of a light reproducing device, to prevent a dust from being invaded and to improve an environmental resistance. SOLUTION: The laser beam 1-2 is advanced as a laser beam 1-4 having a constant width in the thickness direction of a transparent planar plate 1-5 and spreading in the plane of the planar plate, is curved at 90° by a mirror 1-7 inclined at 45°, and is emitted. The beam 1-2 is converted into a parallel beam light 1-9 via a lens 1-8, condensed by a cylindrical lens 1-11 via a mirror 1-10 capable of selecting an arbitrary waveguide layer, and emitted to the waveguide layer. The guided beam 1-15 propagated through the waveguide layer is diffracted by a hologram formed in the waveguide layer, is passed through an opening mask 1-16 and a transparent planar plate 1-5, and is focused on a two-dimensional photodetector 1-6. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了获得足够长度的聚光束，而不增加光再现装置的尺寸，防止灰尘被侵入并提高耐环境性。
解决方案：激光束1-2在透明平板1-5的厚度方向上具有恒定宽度的激光束1-4前进，并且在平板的平面中展开，弯曲为90° °，倾斜为45°的反射镜1-7发射。光束1-2经由透镜1-8被转换为平行光束1-9，经由能够选择任意波导层的反射镜1-10由柱面透镜1-11会聚，并发射到波导层。通过波导层传播的引导光束1-15由形成在波导层中的全息图衍射，穿过开口掩模1-16和透明平板1-5，并聚焦在二维光电检测器1上 -6。版权所有（C）2004，JPO

6. 发明专利

JP2003296941A Optical memory device 有权
标题翻译：光学存储器件
公开(公告)号：JP2003296941A
公开(公告)日：2003-10-17
申请号：JP2002099085
申请日：2002-04-01
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： AMANO NOBUO , ITO KEIICHIRO , SENDA MASAKATSU , TANABE TAKANARI
IPC分类号： G11B7/0065 , G11B7/0025 , G11B7/003
摘要： PROBLEM TO BE SOLVED: To provide an optical memory device which can perform reading and writing with a large capacity at a high speed by providing a tape, disk or cylindrical body with a plurality of hologram recording media.
SOLUTION: The take-up or delivery of a guide tape 52 with an optical memory chip provided with a plurality of the hologram recording media on the tape is controlled by a tape delivery rotor 50 and a tape take-up rotor 51 and the desired hologram recording medium among a plurality of the hologram recording media on the guide tape 52 with the optical memory chip is selected and the selected hologram recording medium is subjected to writing or reading out of the information by a reading and writing device 53.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种通过提供具有多个全息图记录介质的带，盘或圆柱体来高速执行读取和写入的光学存储器件。解决方案：在带上设置有多个全息图记录介质的光学存储器芯片的引导带52的卷取或传送由带传送转子50和带卷取转子51以及选择在具有光学存储器芯片的引导带52上的多个全息图记录介质中的所需全息图记录介质，并且通过读取和写入装置53对所选择的全息图记录介质进行写入或读出信息。 P>版权所有（C）2004，JPO

7. 发明专利

JP2003078746A Distortion correction device, its method, its program, and recording medium for recording the program 有权
标题翻译：失真校正装置，其方法，程序和记录程序的记录介质
公开(公告)号：JP2003078746A
公开(公告)日：2003-03-14
申请号：JP2001262286
申请日：2001-08-30
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： ENDO KATSUHIRO , KUROKAWA YOSHIAKI , UENO MASAHIRO , YAGI IKUTAKE , TANABE TAKANARI
IPC分类号： G06T3/00 , H04N1/387 , H04N1/40
摘要： PROBLEM TO BE SOLVED: To provide a distortion correction device that can efficiently corrects distortions of a reproduced image read with the distortions in the case of optical information recording and conducts decoding or the like with high accuracy and to provide a method, its program and a recording medium for recording the program. SOLUTION: An imaging element of a reader acquires a reproduced image from a two-dimensional image outputted from a recording medium. In this case, the reproduced image with distortions can be obtained by sampling the two-dimensional image. The distortions of the reproduced image can be corrected with high accuracy by using the quantity of distortion as a deformation factor for the correction processing.
摘要翻译：要解决的问题：提供一种失真校正装置，其可以有效地校正在光信息记录的情况下用失真读出的再现图像的失真，并以高精度进行解码等，并提供其方法，程序和用于记录程序的记录介质。解决方案：读取器的成像元件从从记录介质输出的二维图像中获取再现图像。在这种情况下，可以通过对二维图像进行采样来获得具有失真的再现图像。可以通过使用失真量作为校正处理的变形因子，以高精度校正再现图像的失真。

8. 发明专利

JP2004348893A Optical information recording medium 审中-公开
公开(公告)号：JP2004348893A
公开(公告)日：2004-12-09
申请号：JP2003146375
申请日：2003-05-23
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAGI IKUTAKE , TANABE TAKANARI
IPC分类号： G03H1/22 , G11B7/0065
摘要： PROBLEM TO BE SOLVED: To make a photodetector for position detection (position detection circuit) normally operate even when signal detection by a photodetector (PD) requires light intensity larger than that to CCD and CMOS sensors.
SOLUTION: In an optical information recording medium having a structure with a waveguide hologram laminated, the area of the waveguide hologram for position detection of a light incident position to a waveguide is larger than the light receiving area of the photodetector for position detection, and diffracted light from the waveguide hologram for position detection lies almost within the light receiving surface of the photodetector for position detection at the position of the photodetector for position detection.
COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2004348378A Information decoding method and information decoder 有权
公开(公告)号：JP2004348378A
公开(公告)日：2004-12-09
申请号：JP2003143840
申请日：2003-05-21
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： ENDO KATSUHIRO , UENO MASAHIRO , TANABE TAKANARI
IPC分类号： G06K19/06 , G06K7/10
摘要： PROBLEM TO BE SOLVED: To provide an information decoding method and an information decoder which can represent many pieces of data by a small number of pixels. SOLUTION: An amount of displacement detecting part 13 disposes pixels indicating information bits in code parts of (m-o)×(n-p) pixels, among a block of two-dimensional image composed of m×n pixels, detects displacement between a record image coded without disposing a pixel indicating information bits in a guide part of another pixel and an imaging element. A restored value calculating part 14 uses a photographed image and the amount of displacement to calculate a restored value of the code part. An evaluation equation calculating part 15 calculates an evaluation equation with each value of restored values being a variable concerning each assumed pattern. A code pattern estimating part 16, from the result of the evaluation equation, estimates a pattern corresponding to the most satisfactory evaluation equation as a code pattern. COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP2004258101A Two-dimensional optical information reproducing apparatus 有权
公开(公告)号：JP2004258101A
公开(公告)日：2004-09-16
申请号：JP2003045822
申请日：2003-02-24
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： ENDO KATSUHIRO , KUROKAWA YOSHIAKI , YAGI IKUTAKE , TANABE TAKANARI
IPC分类号： G03H1/26 , G11C13/04
摘要： PROBLEM TO BE SOLVED: To receive a signal from an information recording medium having an area greater than the area of a two-dimensional photodetector without providing a moving mechanism of the photodetector. SOLUTION: The two-dimensional optical information reproducing apparatus is constituted to make light incident on the information recording medium 1 formed with a hologram, to receive the diffracted light from the medium 1 and to reproduce the optical information recorded to the medium 1. The two-dimensional optical information reproducing apparatus has a light source 20 which makes the light incident on the medium 1, the two-dimensional photodetector 4 which is disposed to face the medium 1 and receives the diffracted light, and an optical element (tilted optical system) 3 consisting of a transparent body which has a plurality of slopes not parallel with the waveguide surface of the medium 1 between the medium 1 and the two-dimensional photodetector 4 and refracts the diffracted light toward the two-dimensional photodetector 4. COPYRIGHT: (C)2004,JPO&NCIPI

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式