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1. 发明授权

US4969142A Reproduction of optically recorded signal 失效
标题翻译：复制光记录信号
公开(公告)号：US4969142A
公开(公告)日：1990-11-06
申请号：US352651
申请日：1989-05-12
申请人： Michiyoshi Nagashima , Yoshinari Takemura , Kazuaki Obara
发明人： Michiyoshi Nagashima , Yoshinari Takemura , Kazuaki Obara
IPC分类号： G11B7/00 , G11B7/005 , G11B7/12 , G11B7/135
CPC分类号： G11B7/005 , G11B7/12 , G11B7/135
摘要： In reproduction of signal recorded on an optical disk by irradiation of laser light beam thereon, interference between reflected diffracted light of +1th order or -1th order and reflected diffracted light of 0th order is coersively induced, and by detecting the interference light, a high frequency signal can be reproduced.
摘要翻译：在通过在其上照射激光而在光盘上记录的信号的再现中，共同感应到+ 1次或-1次的反射衍射光与0阶的反射衍射光之间的干涉，并且通过检测干涉光，高可以再现频率信号。

2. 发明授权

US4744070A Optical disk and method of tracking the same 失效
标题翻译：光盘和跟踪方法相同
公开(公告)号：US4744070A
公开(公告)日：1988-05-10
申请号：US729933
申请日：1985-05-03
申请人： Yoshinari Takemura , Kazuaki Obara , Michiyoshi Nagashima
发明人： Yoshinari Takemura , Kazuaki Obara , Michiyoshi Nagashima
IPC分类号： G11B7/00 , G11B7/004 , G11B7/09 , G11B7/095 , G11B7/24
CPC分类号： G11B7/0903
摘要： An optical disk having V-shaped grooves with depths periodically varied at a frequency f for every two grooves, thus realizing a large recording area on each slant of the grooves. A tracking method for the optical disk in which two laser spots irradiate two adjoining slants of a V-shape groove, and pilot signals are made of components of the frequency f which are detected from the reflected beams of the respective two laser spots on the optical disk, and whereby the tracking is performed by controlling so as to make the magnitudes of the two pilot signals become equal to each other.
摘要翻译：具有深度的V形槽的光盘以每两个槽的频率f周期性地变化，从而在槽的每个斜面上实现大的记录区域。一种用于光盘的跟踪方法，其中两个激光点照射V形槽的两个相邻的斜面，并且导频信号由从光学上的相应两个激光点的反射光束检测的频率f的分量并且由此通过控制来执行跟踪，以使得两个导频信号的幅度变得彼此相等。

3. 发明授权

US4712204A Optical disk and method for reproducing reference signal therefrom 失效
标题翻译：用于从其再现参考信号的光盘和方法
公开(公告)号：US4712204A
公开(公告)日：1987-12-08
申请号：US768843
申请日：1985-08-23
申请人： Yoshinari Takemura , Kazuaki Obara , Michiyoshi Nagashima
发明人： Yoshinari Takemura , Kazuaki Obara , Michiyoshi Nagashima
IPC分类号： G11B7/005 , G11B7/007 , G11B7/013 , G11B7/24 , G11B7/24076 , G11B7/24085 , G11B19/24 , G11B27/19 , G11B27/24 , G11B27/30 , G11B7/00 , G11B27/10
CPC分类号： G11B19/24 , G11B27/19 , G11B27/24 , G11B7/0053 , G11B7/00745 , G11B7/24 , G11B7/24076 , G11B7/24085 , G11B2220/20 , G11B27/3027
摘要： In an optical disk having grooves, pits representing reference signals in header regions of the grooves are disposed to be spaced apart from each other in a longitudinal direction of the groove to suppress undesirable interference or crosstalk of the reference signals in adjacent V-grooves. In the reproduction of such reference signals, two laser beam spots are respectively irradiated on the first and second oblique surface tracks in the V-groove. Two electric signals made by detecting the light reflected from the spots are examined to determine whether they are in coincidence. When coincidence is confirmed, the signals are used as valid reference signals.
摘要翻译：在具有凹槽的光盘中，在凹槽的头部区域中表示参考信号的凹坑被布置成在凹槽的纵向方向上彼此间隔开，以抑制相邻V形槽中的参考信号的不期望的干扰或串扰。在再现这样的参考信号时，两个激光束点分别照射在V槽中的第一和第二斜面轨道上。检测通过检测从点反射的光产生的两个电信号，以确定它们是否重合。当确认一致时，信号被用作有效的参考信号。

4. 发明授权

US4932015A Method of reproducing signals from optical disk 失效
标题翻译：从光盘再现信号的方法
公开(公告)号：US4932015A
公开(公告)日：1990-06-05
申请号：US50427
申请日：1987-05-18
申请人： Michiyoshi Nagashima , Yoshinari Takemura
发明人： Michiyoshi Nagashima , Yoshinari Takemura
IPC分类号： G11B7/00 , G11B7/005 , G11B7/007 , G11B7/14
CPC分类号： G11B7/005 , G11B7/24076
摘要： A method of reproducing signals formed in slant surfaces of a V-shaped track groove formed in an optical disk. The beam reflected from each slant surface has a portion having a small crosstalk component and a portion having a large crosstalk component, the portions existing separately. The beam reflected from the V-shaped track groove is detected by a photodetector which is composed of two photodetector units. Thus, the output from the first photodetector unit has a small crosstalk component, while the output from the second photodetector unit has a large crosstalk component. The reproduced signal is obtained by subtracting, from a signal formed by amplifying the output of the first photodetector unit, a signal formed by amplifying the output of the second photodetector unit, so that the crosstalk component in the signal from the first photodetector unit is negated by the crosstalk component in the signal from the second photodetector unit, so that the reproduced signal can have a reduced crosstalk component. At the same time, the strictness of requirement for design and positional accuracy of the photodetector is reduced. It is also to arrange such that signals are simultaneously and independently reproduced from adjacent slant surfaces of the V-shaped track groove by a single laser beam spot.
摘要翻译：一种形成在形成在光盘中的V形轨道槽的倾斜表面中形成的信号的方法。从每个倾斜表面反射的光束具有小的串扰分量的部分和具有大的串扰分量的部分，这些部分分开存在。从V形轨道槽反射的光束由由两个光电检测器单元组成的光电检测器检测。因此，来自第一光电检测器单元的输出具有小的串扰分量，而来自第二光电检测器单元的输出具有大的串扰分量。通过从通过放大第一光电检测器单元的输出而形成的信号中减去通过放大第二光电检测器单元的输出而形成的信号，使得来自第一光电检测器单元的信号中的串扰成分被否定，通过来自第二光电检测器单元的信号中的串扰分量，使得再现信号可以具有减小的串扰分量。同时，减少了光电探测器的设计要求和位置精度的严格性。也可以通过单个激光束点将信号从V形轨道槽的相邻倾斜表面同时且独立地再现。

5. 发明授权

US4875203A Tracking servo signal generating device for an optical disc 失效
标题翻译：跟踪用于光盘的伺服信号产生装置
公开(公告)号：US4875203A
公开(公告)日：1989-10-17
申请号：US2952
申请日：1987-01-13
申请人： Yoshinari Takamura , Kazuaki Obara , Michiyoshi Nagashima
发明人： Yoshinari Takamura , Kazuaki Obara , Michiyoshi Nagashima
IPC分类号： G11B7/09 , G11B7/095
CPC分类号： G11B7/0903
摘要： An optical disk reproducing apparatus of the type in which a tracking control is performed by projecting a controlling laser beam to the center of each of a plurality of V grooves formed on an optical disk and using far-field images of light beams reflected from the optical disk and the signals recorded on the adjacent slopes of the V groove are read by respectively projecting two reproducing laser beams to the slopes. To remove the low-frequency components of the signals on the slopes entering a tracking error signal, the low-frequency components are extracted from the two reproduced signals by low-pass filters and the difference therebetween is generated as a correction signal which in turn is subtracted from the tracking error signal, thereby improving the accuracy of the tracking control.
摘要翻译：一种光盘再现装置，其中通过将控制激光束投影到形成在光盘上的多个V形槽中的每一个的中心并使用从光学反射的光束的远场图像进行跟踪控制通过分别将两个再现激光束投影到斜面来读取记录在V槽的相邻斜面上的信号。为了去除进入跟踪误差信号的斜坡上的信号的低频分量，通过低通滤波器从两个再现信号中提取低频分量，并且将它们之间的差产生为校正信号，从跟踪误差信号中减去，从而提高跟踪控制的精度。

6. 发明授权

US07999873B2 Imaging device with plural lenses and imaging regions 失效
标题翻译：具有多个透镜和成像区域的成像装置
公开(公告)号：US07999873B2
公开(公告)日：2011-08-16
申请号：US12094051
申请日：2006-11-10
申请人： Ichiro Oyama , Taku Hirasawa , Michiyoshi Nagashima , Tomokuni Iijima
发明人： Ichiro Oyama , Taku Hirasawa , Michiyoshi Nagashima , Tomokuni Iijima
IPC分类号： H04N5/225
CPC分类号： H04N5/2254 , H04N5/23232 , H04N5/3415 , H04N5/349 , H04N9/045 , H04N9/07
摘要： A plurality of lenses 102a to 102d arranged in the same plane form a plurality of subject images on a plurality of imaging regions 104a to 104d. Vertical line directions and horizontal line directions of the pixel arrangement in the respective plurality of imaging regions are equal to one another among the plurality of imaging regions. Further, at least one pair of subject images received by at least one pair of imaging regions having a parallax in the vertical line (or horizontal line) direction among the plurality of imaging regions are shifted from each other by a predetermined amount in the horizontal line (or vertical line) direction. By performing pixel shifting in a direction perpendicular to the direction in which a parallax is generated, it always is possible to obtain a high-resolution image even when the subject distance varies.
摘要翻译：布置在同一平面上的多个透镜102a至102d在多个成像区域104a至104d上形成多个被摄体图像。多个成像区域中的像素排列的垂直线方向和水平方向在多个摄像区域中彼此相等。此外，由多个成像区域中的垂直线（或水平线）方向的视差的至少一对成像区域接收的至少一对被摄体图像在水平线上彼此偏移预定量（或垂直线）方向。通过在与产生视差的方向垂直的方向上进行像素移位，即使当被摄体距离变化时，总是可以获得高分辨率图像。

7. 发明授权

US07385680B2 Camera module 有权
标题翻译：相机模块
公开(公告)号：US07385680B2
公开(公告)日：2008-06-10
申请号：US11569723
申请日：2005-04-11
申请人： Satoshi Tamaki , Michiyoshi Nagashima
发明人： Satoshi Tamaki , Michiyoshi Nagashima
IPC分类号： G01C3/08
CPC分类号： B60R1/00 , B60R2300/106 , B60R2300/107 , B60R2300/108 , B60R2300/8033 , B60R2300/8093 , G01C3/085 , G02B3/0006 , G02B5/201 , H04N5/2254 , H04N5/2257 , H04N5/332 , H04N9/09
摘要： A plurality of lenses (1a-1d) of a lens module (1), a plurality of wavelength selection regions (2a-2d) each having at least one optical filter, and a plurality of imaging regions (4a-4d) are placed in one-to-one correspondence. At least two of the plurality of wavelength selection regions transmit light in at least one wavelength band among infrared light, red light, green light, and blue light. The distance to an object is calculated based on at least two pieces of image information outputted respectively from at least two imaging regions respectively corresponding to the at least two wavelength selection regions. Furthermore, a camera module outputs an image signal based on image information outputted from at least one of the plurality of imaging regions. This can realize a small and low-cost camera module capable of measuring the distance to an object and capturing the object.
摘要翻译：透镜模块（1）的多个透镜（1a-1d），多个具有至少一个滤光器的多个波长选择区域（2a-2d）以及多个成像区域（4a-1d） 4 d）以一一对应的方式放置。多个波长选择区域中的至少两个在红外光，红光，绿光和蓝光中的至少一个波长带中透射光。基于分别对应于至少两个波长选择区域的至少两个成像区域输出的至少两个图像信息计算到对象的距离。此外，相机模块基于从多个成像区域中的至少一个输出的图像信息输出图像信号。这可以实现能够测量到物体的距离并捕获物体的小型和低成本照相机模块。

8. 发明申请

US20070247611A1 Camera Module 有权
标题翻译：相机模块
公开(公告)号：US20070247611A1
公开(公告)日：2007-10-25
申请号：US11569723
申请日：2005-04-11
申请人： Satoshi Tamaki , Michiyoshi Nagashima
发明人： Satoshi Tamaki , Michiyoshi Nagashima
IPC分类号： G01C3/06
CPC分类号： B60R1/00 , B60R2300/106 , B60R2300/107 , B60R2300/108 , B60R2300/8033 , B60R2300/8093 , G01C3/085 , G02B3/0006 , G02B5/201 , H04N5/2254 , H04N5/2257 , H04N5/332 , H04N9/09
摘要： A plurality of lenses (1a-1d) of a lens module (1), a plurality of wavelength selection regions (2a-2d) each having at least one optical filter, and a plurality of imaging regions (4a-4d) are placed in one-to-one correspondence. At least two of the plurality of wavelength selection regions transmit light in at least one wavelength band among infrared light, red light, green light, and blue light. The distance to an object is calculated based on at least two pieces of image information outputted respectively from at least two imaging regions respectively corresponding to the at least two wavelength selection regions. Furthermore, a camera module outputs an image signal based on image information outputted from at least one of the plurality of imaging regions. This can realize a small and low-cost camera module capable of measuring the distance to an object and capturing the object.
摘要翻译：透镜模块（1）的多个透镜（1a-1d），多个具有至少一个滤光器的多个波长选择区域（2a-2d）以及多个成像区域（4a-1d） 4 d）以一一对应的方式放置。多个波长选择区域中的至少两个在红外光，红光，绿光和蓝光中的至少一个波长带中透射光。基于分别对应于至少两个波长选择区域的至少两个成像区域输出的至少两个图像信息计算到对象的距离。此外，相机模块基于从多个成像区域中的至少一个输出的图像信息输出图像信号。这可以实现能够测量到物体的距离并捕获物体的小型和低成本照相机模块。

9. 发明申请

US20050218309A1 Imaging device and photodetector for use in imaging 失效
标题翻译：用于成像的成像装置和光电探测器
公开(公告)号：US20050218309A1
公开(公告)日：2005-10-06
申请号：US11092431
申请日：2005-03-29
申请人： Seiji Nishiwaki , Michiyoshi Nagashima
发明人： Seiji Nishiwaki , Michiyoshi Nagashima
IPC分类号： G01J3/50 , G02B7/02 , G03B11/00 , H01J5/16 , H01J40/14 , H01L27/00 , H01L27/146 , H04N5/225 , H04N9/04
CPC分类号： H04N9/045 , H01L27/14623 , H01L27/14627 , H04N5/3415
摘要： There is provided an imaging device comprising: at least three color filters, including first to third color filters 9R, 9G, and 9B having respectively different filtering characteristics; at least three lens systems, including first to third lens systems 2R, 2G, and 2B respectively associated with the first to third color filters; and a photodetection section including a first photodetector 4R for receiving light transmitted through the first color filter 9R and the first lens system 2R, a second photodetector 4G for receiving light transmitted through the second color filter 9G and the second lens system 2G, and a third photodetector 4B for receiving light transmitted through the third color filter 9B and the third lens system 2B. Each of the first to third photodetectors 4R, 4G, and 4B has a two-dimensional array of photodetection cells such that centers of the photodetection cells are positioned at apices of triangles sharing respective sides with one another, where none of three corner angles of each triangle is equal to 90°.
摘要翻译：提供了一种成像装置，包括：至少三个滤色器，包括分别具有不同滤光特性的第一至第三滤色器9 R，9 G和9 B; 至少三个透镜系统，包括分别与第一至第三滤色器相关联的第一至第三透镜系统2 R，2 G和2B; 以及光检测部，其包括用于接收透过第一滤色器9R的光和第一透镜系统2R的第一光电检测器4R，用于接收透过第二滤色器9G的光的第二光电检测器4 G和第二透镜系统 2G，以及用于接收透过第三滤色器9B和第三透镜系统2B的光的第三光电检测器4B。第一至第三光电检测器4 R，4 G和4B中的每一个具有二维阵列的光电检测单元，使得光电检测单元的中心位于三角形共享的三角形的顶点处，其中每个三角形的三个角角度都不等于90°。

10. 发明申请

US20050179786A1 Imaging method and imaging apparatus 失效
标题翻译：成像方法和成像装置
公开(公告)号：US20050179786A1
公开(公告)日：2005-08-18
申请号：US11044523
申请日：2005-01-27
申请人： Tsuguhiro Korenaga , Seiji Nishiwaki , Michiyoshi Nagashima
发明人： Tsuguhiro Korenaga , Seiji Nishiwaki , Michiyoshi Nagashima
IPC分类号： G02F1/133 , G09G3/36 , H04N5/225
CPC分类号： H04N5/2254 , H04N5/349
摘要： In a method for forming an image of a subject on a solid-state imaging device, a first time period for splitting a light beam from a subject into a plurality of light beams that have different polarization directions and then combining the plurality of light beams to form a single subject image on the solid-state imaging device and a second time period for splitting the light beam from the subject into the plurality of light beams that have different polarization directions and forming a plurality of subject images that overlap each other partially on the solid-state imaging device are switched time-wise. A first image information on the single subject image is obtained based on pieces of signal information in the first time period, and a second image information on one of the plurality of subject images is calculated by using and computing pieces of signal information in the second time period. Then, the high-resolution image of the subject is achieved by using the first image information and the second image information. In this way, it is possible to obtain an image with a high resolution and a reduced noise with substantially no loss of the light beam from the subject.
摘要翻译：在用于在固态成像装置上形成被摄体的图像的方法中，将用于将来自被摄体的光束分割为具有不同偏振方向的多个光束然后将多个光束组合的第一时间段在固态成像装置上形成单个被摄体图像，以及第二时间段，用于将来自被摄体的光束分成具有不同偏振方向的多个光束，并且形成多个相互重叠的被摄体图像固态成像装置按时间方式进行切换。基于第一时间段中的信号信息获得关于单个被摄体图像的第一图像信息，并且通过在第二时间中使用和计算信号信息来计算关于多个被摄体图像之一的第二图像信息期。然后，通过使用第一图像信息和第二图像信息来实现被摄体的高分辨率图像。以这种方式，可以获得具有高分辨率和降低的噪声的图像，而基本上没有来自被摄体的光束的损失。

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