公开(公告)号：US07706532B2

公开(公告)日：2010-04-27

申请号：US10564465

申请日：2004-07-06

申请人： Yujiro Ito ,  Tsutomu Shimosato ,  Kazunobu Tsujikawa

发明人： Yujiro Ito ,  Tsutomu Shimosato ,  Kazunobu Tsujikawa

IPC分类号： H04N7/167

CPC分类号： H04L9/0637 ,  H04L9/12 ,  H04L2209/125 ,  H04N21/2347 ,  H04N21/4307 ,  H04N21/4405

摘要： An encryption apparatus for encrypting input picture data with high secrecy and restoration against an error of encrypted data. An EXOR circuit calculates input picture data and a pseudo random sequence and obtains encrypted data. The obtained encrypted data are held in a first FF circuit. The first FF circuit is reset for each line. Counters count for each line or each frame and are reset for each frame or at the beginning of a program. An encryption device encrypts outputs of a second FF circuit that holds a fixed value, the counters and the first FF circuit with a key and generates a pseudo random sequence. A shift register divides the bit sequence. The EXOR circuit calculates the output of the shift register and the input picture data and obtains encrypted data. Since the encrypted output is fed back, data cannot be stolen using a successive input of the same data. In addition, since an encrypted output that is fed back is reset for each line, the encrypted output can be recovered from an error.

摘要翻译： 一种加密装置，用于针对加密数据的错误高密度地加密输入图像数据并进行恢复。 EXOR电路计算输入图像数据和伪随机序列，并获得加密数据。 获得的加密数据保存在第一FF电路中。 第一个FF电路为每一行复位。 计数器计数每行或每一帧，并为每个帧或程序开始时重置。 加密装置用密钥加密保持固定值的第二FF电路的输出，计数器和第一FF电路，并产生伪随机序列。 移位寄存器分配位序列。 EXOR电路计算移位寄存器和输入图像数据的输出，并获得加密数据。 由于加密输出被反馈，所以不能使用相同数据的连续输入来窃取数据。 此外，由于反馈的加密输出针对每行复位，所以加密的输出可以从错误中恢复。

公开(公告)号：US07453512B2

公开(公告)日：2008-11-18

申请号：US11113530

申请日：2005-04-25

申请人： Yujiro Ito ,  Susumu Kurita

发明人： Yujiro Ito ,  Susumu Kurita

IPC分类号： H04N5/232 ,  G03B13/34

CPC分类号： H04N5/23212 ,  G02B7/32

摘要： An auto-focus apparatus, a focus adjusting method, an image capturing apparatus and an image capturing method make it possible to perform accurate focus adjustment on a subject for which the focus should be adjusted. The auto-focus apparatus emits an irradiation wave from emitting means for irradiation to a subject while changing an incident angle of the irradiation wave, detects an incident angle of a reflected wave of the irradiation wave reflected by the subject, incident on light receiving means positioned corresponding to the emitting means, determines based on the emitting angle and the incident angle whether or not the subject is a subject for which the focus is adjusted, and adjusts the focus on the subject when determining that the subject is the subject for which the focus should be adjusted, thereby making it possible to accurately adjust the focus on the subject for which the focus should be adjusted.

摘要翻译： 自动对焦装置，聚焦调整方法，图像拍摄装置和图像捕获方法使得可以对应该调整焦点的被摄体执行准确的对焦调整。 自动聚焦装置在改变照射波的入射角的同时从发射装置发射照射波，检测入射到受光装置上的被摄体反射的照射波的反射波的入射角 对应于发光装置，基于发射角度和入射角度来确定被摄体是否是被调整对象的被摄体，并且当确定被摄体是被摄体的焦点时，对被摄体进行焦点调节 应该进行调整，从而能够精确地调整焦点应该调整的对象。

公开(公告)号：US20080159750A1

公开(公告)日：2008-07-03

申请号：US11999769

申请日：2007-12-07

申请人： Junzo Tokunaka ,  Mitsutoshi Shinkai ,  Yujiro Ito

发明人： Junzo Tokunaka ,  Mitsutoshi Shinkai ,  Yujiro Ito

IPC分类号： H04B10/00 ,  G06K15/00 ,  G11B20/00

CPC分类号： G11C7/22 ,  G11C7/1006 ,  G11C7/1051 ,  G11C7/1054 ,  G11C7/1078 ,  G11C7/1081 ,  G11C2207/107

摘要： Disclosed is a memory card attached to an external apparatus for transmitting and receiving data via the external apparatus and an optical communication. The memory card includes a power-supply potential unit receiving electric power supply at a predetermined voltage from the external apparatus; a ground potential unit connected to a ground potential unit of the external apparatus; a light-receiving unit receiving an optical signal transmitted from the external apparatus or another memory card; and a light-emitting unit transmitting the optical signal to the external apparatus or another memory card. In the memory card, the light-receiving unit and the light-emitting unit are arranged such that the signal received by the light-receiving unit and the signal transmitted from the light-emitting unit are transmitted in a straight line.

摘要翻译： 公开了一种附接到外部设备的存储卡，用于经由外部设备发送和接收数据以及光学通信。 存储卡包括从外部设备接收预定电压的电源的电源电位单元; 连接到所述外部设备的地电位单元的接地电位单元; 光接收单元，接收从外部设备或另一存储卡发送的光信号; 以及将光信号发送到外部设备或另一存储卡的发光单元。 在存储卡中，光接收单元和发光单元布置成使得由光接收单元接收的信号和从发光单元发送的信号以直线传输。

公开(公告)号：US20070177718A1

公开(公告)日：2007-08-02

申请号：US10572162

申请日：2004-09-16

申请人： Tsutomu Shimosato ,  Yujiro Ito ,  Kazunobu Tsujikawa

发明人： Tsutomu Shimosato ,  Yujiro Ito ,  Kazunobu Tsujikawa

IPC分类号： H04L9/28

CPC分类号： H04N21/4405 ,  H04L9/0662 ,  H04L9/14 ,  H04L9/3263 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/835

摘要： Video data exploitation by alteration of data is prevented. An extractor 111 extracts valid video data in data 110 and predetermined data in the data. An inserter 114 inserts an arithmetic operation result of the predetermined data by an arithmetic operation unit 113 into the valid video data encrypted by an encryptor 112. An output of the inserter 114 is supplied to an extractor 144 through a transmission path 120. The encrypted valid video data and arithmetic operation resultant data of the arithmetic operation unit 113 are extracted. An arithmetic operation unit 143 executes the same arithmetic operation as that of the arithmetic operation unit 113 to data corresponding to the data used in the arithmetic operation unit 113 from the valid video data decrypted by a decryptor 141 and extracted by an extractor 144. A comparator 145 compares an output of the arithmetic operation unit 143 with an arithmetic operation result extracted from data 140. When both of them do not coincide, it is determined that there is a possibility that the transmission data has been altered. An output of an another-output generator 146 is outputted as output data 148.

摘要翻译： 通过改变数据来防止视频数据的利用。 提取器111提取数据110中的有效视频数据和数据中的预定数据。 插入器114将由算术运算单元113将预定数据的算术运算结果插入由加密器112加密的有效视频数据。 插入器114的输出通过传输路径120提供给提取器144。 提取算术运算部113的加密的有效视频数据和算术运算结果数据。 算术运算单元143对与算术运算单元113中使用的数据相对应的数据，与由解密器141解密并由提取器144提取的有效视频数据执行与算术运算单元113相同的算术运算。 比较器145将算术运算单元143的输出与从数据140提取的算术运算结果进行比较。 当它们都不一致时，确定存在发送数据已被改变的可能性。 输出另一输出发生器146的输出作为输出数据148。

公开(公告)号：US20060232700A1

公开(公告)日：2006-10-19

申请号：US11403291

申请日：2006-04-13

申请人： Yujiro Ito ,  Hidekazu Suto ,  Shinji Takemoto

发明人： Yujiro Ito ,  Hidekazu Suto ,  Shinji Takemoto

IPC分类号： G03B13/00

CPC分类号： G03B13/36 ,  G02B7/38 ,  H04N5/23212

摘要： Autofocus device has a lens-driving unit, a focal-point-position-detecting unit that detects a position of a focal point of the lens, and a distance measurement sensor. The sensor measures a distance to a subject based on a reference field of view for distance measurement and a field of view for distance measurement being offset outwardly from the reference field of view and/or a field of view for distance measurement having a field of view that is different from the reference field of view. The device has a control unit that controls the lens-driving unit to drive the lens to meet the position of the focal point of the lens to an in-focus position thereof. The focusing operation starts by setting the lens drive based on a representative value selected from measured distance results obtained by the distance measurement sensor and the position of the focal point of the lens.

摘要翻译： 自动对焦装置具有透镜驱动单元，检测透镜的焦点的位置的焦点位置检测单元和距离测量传感器。 传感器基于用于距离测量的参考视场来测量与被摄体的距离，并且用于距离测量的视野从参考视野向外偏移和/或用于具有视场的距离测量的视野 这与参考视野不同。 该装置具有控制单元，其控制透镜驱动单元以驱动透镜以将透镜的焦点的位置与其对准位置相符。 基于从距离测量传感器获得的测量距离结果和透镜焦点的位置中选择的代表值来设置透镜驱动器开始聚焦操作。

公开(公告)号：US20060232699A1

公开(公告)日：2006-10-19

申请号：US11403186

申请日：2006-04-12

申请人： Hidekazu Suto ,  Yujiro Ito ,  Shinji Takemoto

发明人： Hidekazu Suto ,  Yujiro Ito ,  Shinji Takemoto

IPC分类号： G03B13/00

CPC分类号： H04N5/23212 ,  G02B7/285 ,  G02B7/365

摘要： Autofocus device has a lens-driving unit, a focal-point-position-detecting unit that detects a position of a focal point of the lens, a distance measurement sensor that measures a distance to a subject, and a focus-evaluation-value-calculating unit that calculates a focus evaluation value using a frequency component of an image signal in a particular region in an imaging frame. The device also has a user interface and a control unit that controls the lens-driving unit to drive the lens based on the focus evaluation value or the focus evaluation value, the position of a focal point of the lens, and a measured distance result measured by the distance measurement sensor, thereby meeting the position of the focal point to an in-focus position. The control unit controls the lens-driving unit, the distance measurement sensor and the focus-evaluation-value-calculating unit based on the autofocus contents set by the user interface.

摘要翻译： 自动对焦装置具有透镜驱动单元，检测透镜的焦点的位置的焦点位置检测单元，测量与被摄体的距离的距离测量传感器，以及焦点评价值检测单元， 计算单元，其使用成像帧中的特定区域中的图像信号的频率分量来计算焦点评估值。 该装置还具有用户界面和控制单元，其基于焦点评估值或焦点评估值，镜头的焦点位置和测量的距离结果来控制透镜驱动单元驱动透镜 通过距离测量传感器，从而将焦点的位置满足到对焦位置。 控制单元基于由用户界面设定的自动对焦内容来控制镜头驱动单元，距离测量传感器和焦点评估值计算单元。

公开(公告)号：US20060210065A1

公开(公告)日：2006-09-21

申请号：US10564465

申请日：2004-07-06

申请人： Yujiro Ito ,  Tsutomu Shimosato ,  Kazunobu Tsujikawa

发明人： Yujiro Ito ,  Tsutomu Shimosato ,  Kazunobu Tsujikawa

IPC分类号： H04L9/28

CPC分类号： H04L9/0637 ,  H04L9/12 ,  H04L2209/125 ,  H04N21/2347 ,  H04N21/4307 ,  H04N21/4405

摘要： Input picture data are encrypted with high secrecy and restoration against an error of encrypted data. An EXOR circuit 100 calculates input picture data and a pseudo random sequence and obtains encrypted data. The obtained encrypted data are held in an FF circuit 101. The FF circuit 101 is reset for each line. Counters 102 and 103 count for each line or each frame and are reset for each frame or at the beginning of a program. An encryption device 105 encrypts outputs of an FF circuit 104 that holds a fixed value, the counters 103 and 102, and the FF circuit 101 with a key (K) and generates a pseudo random sequence. A shift register 106 divides the bit sequence. The EXOR 100 calculates the output of the shift register 106 and the input picture data and obtains encrypted data. Since the encrypted output is fed back, data cannot be stolen using a successive input of the same data. In addition, since an encrypted output that is fed back is reset for each line, the encrypted output can be completely recovered from an error.

摘要翻译： 输入图像数据以加密数据的错误的高度保密和恢复加密。 EXOR电路100计算输入图像数据和伪随机序列，并获得加密数据。 获得的加密数据保存在FF电路101中。 对于每一行，FF电路101被复位。 计数器102和103对于每一行或每个帧进行计数，并且对于每个帧或在程序的开始被重置。 加密装置105利用密钥（K）加密保持固定值的FF电路104的输出，计数器103和102以及FF电路101，并产生伪随机序列。 移位寄存器106分割位序列。 EXOR 100计算移位寄存器106的输出和输入图像数据，并获得加密的数据。 由于加密输出被反馈，所以不能使用相同数据的连续输入来窃取数据。 另外，由于反馈的加密输出针对每行复位，所以加密的输出可以从错误中完全恢复。

公开(公告)号：US06658214B1

公开(公告)日：2003-12-02

申请号：US09344137

申请日：1999-06-24

申请人： Yujiro Ito

发明人： Yujiro Ito

IPC分类号： H04B1000

CPC分类号： H04B10/1125

摘要： The invention provides an optical space transmission apparatus which is applied for communication of information using a light beam which propagates in the space and can reduce the frequency of replacement of a light emitting element while the construction is simple. An information signal of an operation condition which relates to transmission of a communication light beam or reception of a reception light beam is communicated with another optical space transmission apparatus together with an information signal so that the transmission side apparatus can grasp a result of reception of the light beam by the reception side apparatus and send out the light beam with a suitable light amount.

摘要翻译： 本发明提供了一种光学空间传输装置，其应用于在空间中传播的光束的信息通信，并且可以在构造简单的同时降低发光元件的更换频率。 与通信光束的发送或接收光束的接收相关的操作条件的信息信号与信息信号一起与另一个光学空间传输装置通信，使得发送侧设备可以掌握接收光的接收结果 由接收侧装置进行光束发射，并以合适的光量发出光束。

公开(公告)号：US06275262B1

公开(公告)日：2001-08-14

申请号：US08776959

申请日：1997-03-21

申请人： Yujiro Ito

发明人： Yujiro Ito

IPC分类号： G03B1300

CPC分类号： H04N5/23212

摘要： A focus control circuit (34) which controls the focus of a video camera is provided with a horizontal-direction evaluation value generating circuit (62) which generates a plurality of evaluation values for the horizontal direction, a vertical-direction evaluation value generating circuit (63) which generates a plurality of evaluation values for the vertical direction, and a microcomputer (64) which performs a prescribed operation upon receiving the evaluation values for the horizontal and vertical directions. The circuit (62) generates the evaluation values corresponding to preset evaluation windows of different sizes. The microcomputer (64) selects evaluation values corresponding to an appropriate evaluation window for judging the contrast of an object out of the supplied evaluation values and controls the focus of the video camera based on the selected evaluation values. Therefore, appropriate evaluation values of the object can be obtained.

摘要翻译： 控制摄像机焦点的聚焦控制电路（34）设置有水平方向评价值生成电路（62），该水平方向评价值生成电路生成水平方向的多个评价值，垂直方向评价值生成电路 63），其生成用于垂直方向的多个评估值，以及微机（64），其在接收到水平和垂直方向的评估值时执行规定的操作。 电路（62）产生与不同尺寸的预设评估窗口对应的评估值。 微型计算机（64）从所提供的评价值中选择与适当的评价窗口对应的评价值，判定对象的对比度，并基于所选择的评价值来控制摄像机的焦点。 因此，可以获得对象的适当的评估值。

公开(公告)号：US06175451B1

公开(公告)日：2001-01-16

申请号：US09354969

申请日：1999-07-16

申请人： Toshihisa Iriyama ,  Yujiro Ito

发明人： Toshihisa Iriyama ,  Yujiro Ito

IPC分类号： G02B2710

CPC分类号： H04B10/1125 ,  G02B7/1821 ,  G02B26/0816 ,  G02B27/144 ,  G02B27/145

摘要： An optical axis correcting apparatus for correcting the optical axes of light beams from a communicating party in an optical space transmission system that transmits and receives the light beams to/from the communicating party, comprises, in order to further accurately correct an optical axis with a simple configuration, optical axis changing means for changing the angle of a reflecting mirror placed in the optical path of the light beam and for changing the optical axis of the light beam to be reflected by the reflecting mirror, optical axis direction detecting means for detecting the direction of the optical axis of the light beam that is changed by the optical axis changing means, optical axis adjusting means for adjusting the angle of the reflecting mirror based on the direction of optical axis of the light beam detected by the optical axis direction detecting means through the optical axis changing means in order to adjust the direction of the optical axis of the light beam toward the communicating party, and correction means for detecting a change of angle occurred in the reflecting mirror owing an oscillation applied to the reflecting mirror and for correcting the angle of the reflecting mirror based on the detected result.

摘要翻译： 一种光轴校正装置，用于校正来自与通信对方发送和接收光束的光空间传输系统中来自通信方的光束的光轴，包括为了进一步精确地校正光轴 简单的结构，用于改变放置在光束的光路中的反射镜的角度并且用于改变被反射镜反射的光束的光轴的光轴改变装置，用于检测光轴方向检测装置 由光轴改变装置改变的光束的光轴的方向;光轴调节装置，用于根据由光轴方向检测装置检测的光束的光轴方向调节反射镜的角度; 通过光轴改变装置来调节光束的光轴的方向 通信对方，以及用于检测反射镜中发生的角度变化的校正装置，该校正装置由于施加到反射镜上的振动，并且基于检测结果来校正反射镜的角度。