公开(公告)号：US08823885B2

公开(公告)日：2014-09-02

申请号：US13040746

申请日：2011-03-04

申请人： Tomoharu Masuda ,  Takashi Endo

发明人： Tomoharu Masuda ,  Takashi Endo

IPC分类号： G02F1/1335 ,  G03B21/14 ,  H04N9/31 ,  G03B33/12

CPC分类号： G03B21/14 ,  G03B21/006 ,  G03B21/2053 ,  G03B21/206 ,  G03B21/2073 ,  G03B33/12 ,  H04N9/3167

摘要： A projector includes: an illuminator that outputs illumination light; a light modulator including a liquid crystal panel and a structural birefringent polarization separation element having a polarization separation surface inclined away from a central axis of the illumination light, the light modulator modulating the illumination light from the illuminator; and a projection system that projects the light modulated by the light modulator, wherein the illumination light outputted from the illuminator has an angular distribution in a first direction, which is perpendicular to the central axis of the illumination light, smaller than the angular distribution in a second direction, which is perpendicular to the first direction and the central axis of the illumination light, and the polarization separation surface of the structural birefringent polarization separation element has a structure that is not periodic along the first direction but is periodic along the second direction.

摘要翻译： 投影仪包括：输出照明光的照明器; 一种光调制器，包括液晶面板和结构双折射偏振分离元件，其具有偏离照明光的中心轴倾斜的偏振分离表面，所述光调制器调制来自照明器的照明光; 以及投影系统，投射由光调制器调制的光，其中从照明器输出的照明光在与照明光的中心轴垂直的第一方向上具有小于角度分布的角度分布 第二方向，其垂直于照明光的第一方向和中心轴，并且结构双折射偏振分离元件的偏振分离表面具有沿着第一方向不是周期性的结构，但沿着第二方向是周期性的。

公开(公告)号：US08599249B2

公开(公告)日：2013-12-03

申请号：US13229826

申请日：2011-09-12

申请人： Takashi Endo

发明人： Takashi Endo

IPC分类号： H04N13/04 ,  H04N9/47

CPC分类号： G02B27/2264 ,  H04N13/341 ,  H04N13/363

摘要： An image display apparatus comprise: a light source section; a light modulator that modulates light delivered from the light source section to display an image; a light level control section that adjusts the amount of light delivered from the light source section to the light modulator; and a display control section that updates the image displayed on the light modulator during a first period and a second period alternately switched therebetween. The display control section updated in the first period to a first image and a black image in this order and updates in the second period to a second image and the black image in this order. The light level control section sets the amount of light delivered from the light source section to be greater than that in other periods during a predetermined switching period including a point to switch between the first period and the second period.

摘要翻译： 一种图像显示装置，包括：光源部; 光调制器，其调制从所述光源部分传送的光以显示图像; 光量控制部，其将从所述光源部输送的光量调整到所述光调制器; 以及显示控制部分，其在第一周期和第二周期期间更新在光调制器上显示的图像，所述第一周期和第二周期在其间交替切换。 显示控制部分按照该顺序在第一时间段中更新为第一图像和黑色图像，并且以该顺序将第二周期更新为第二图像和黑色图像。 光级别控制部分在包括在第一周期和第二周期之间切换的预定切换周期期间将从光源部分发送的光量设置为大于其他周期中的光量。

公开(公告)号：US08266450B2

公开(公告)日：2012-09-11

申请号：US12417856

申请日：2009-04-03

申请人： Takashi Endo ,  Toshio Okochi ,  Shunsuke Ota ,  Tatsuya Kameyama

发明人： Takashi Endo ,  Toshio Okochi ,  Shunsuke Ota ,  Tatsuya Kameyama

IPC分类号： G06F11/30

CPC分类号： G06F21/72 ,  G06F9/3017 ,  G06F9/30174 ,  G06F9/3867 ,  G06F21/71 ,  H04L9/0631 ,  H04L9/088 ,  H04L2209/125

摘要： It is possible to achieve the protection of software with reduced overhead. For example, a memory for storing an encrypted code prepared in advance and a decryptor module for decrypting the code are provided. The decryptor module includes, for example, a three-stage pipeline and a selector for selecting one output from the outputs of each stage of the pipeline. When a branch instruction is issued and subsequent inputs of the pipeline are in the order of CD′1, CD′2, . . . , the decryptor module outputs a first decrypted code by performing a one-stage pipeline process to CD′1. Next, the decryptor module outputs a second decrypted code by performing a two-stage pipeline process to CD′2, and the decryptor module outputs a third decrypted code by performing a three-stage pipeline process to CD′3 (and subsequent codes). Therefore, in particular, the overhead to CD′1 can be reduced.

摘要翻译： 可以减少开销来实现对软件的保护。 例如，提供用于存储预先准备的加密代码的存储器和用于解密代码的解密器模块。 解密器模块包括例如三级流水线和用于从流水线的每个级的输出中选择一个输出的选择器。 当发出分支指令并且管道的后续输入是CD'1，CD'2的顺序时。 。 。 解码器模块通过对CD'1执行一级流水线处理来输出第一解密码。 接下来，解码器模块通过对CD'2执行两级流水线处理来输出第二解密码，并且解密器模块通过对CD'3（和后续码）执行三级流水线处理来输出第三解密码。 因此，特别地，CD'1的开销可以降低。

公开(公告)号：US08159624B2

公开(公告)日：2012-04-17

申请号：US13096237

申请日：2011-04-28

申请人： Takashi Endo

发明人： Takashi Endo

IPC分类号： G02F1/1335

CPC分类号： H04N9/315 ,  G02F1/133632 ,  G02F2413/08 ,  G03B21/2053 ,  G03B21/2073

摘要： A projector capable of increasing in the contrast by reducing the amount of leakage of light due to reflection of light on the surface of a retarder is to be provided. A retarder is placed and tilted in a direction so that the following conditional expression is satisfied, denoting a distance between a point A where the normal drawn from the center of a substrate plane of the retarder and a substrate plane of a polarizing beam splitter intersect and a point C where the substrate plane of the polarizing beam splitter and the optical axis of a projection system as AC, and a distance between a point B where the substrate plane of the polarizing beam splitter and the system optical axis intersect and the point C as BC: AC>BC.

摘要翻译： 提供能够通过减少由于反射缓慢器表面上的光而导致的光的泄漏量来增加对比度的投影仪。 延迟器沿一个方向放置和倾斜，使得满足以下条件表达式：表示从延迟器的基板平面的中心抽出的法线与偏振分束器的基板平面相交的点A与之间的距离， 偏振分束器的基板面和投影系统的光轴为AC的点C以及偏振分束器的基板面与系统光轴相交的点B与点C之间的距离 BC：AC> BC。

公开(公告)号：US20090237788A1

公开(公告)日：2009-09-24

申请号：US12405836

申请日：2009-03-17

申请人： Takashi Endo

发明人： Takashi Endo

IPC分类号： G02B27/28

CPC分类号： G02B5/3058 ,  G02B27/1006 ,  G02B27/1046 ,  G02B27/145 ,  G02B27/149 ,  G02B27/286 ,  G03B21/2073 ,  H04N9/3167

摘要： An optical apparatus includes an optical element disposed on an optical path along which the light flux emitted from a light source travels, and a polarizing element disposed on the light flux emitting-side of the optical element. The polarizing element includes a first prism having a light flux incident-side end surface on which the light flux having emitted from the optical element is incident and an emitting-side inclined surface inclined to the light flux incident-side end surface, and a polarizing element body provided on the emitting-side inclined surface, the polarizing element body transmitting first linearly polarized light out of the light flux having passed through the first prism and reflecting second linearly polarized light polarized perpendicular to the first linearly polarized light toward the first prism. The optical element is integrated with the polarizing element with an interposed adhesive layer formed on the light flux incident-side end surface. The refractive index n0 of the adhesive layer is set to satisfy the following equation: 1≦n1/n0×sin [2φ−arcsin {n0/n1×sin(θ−φ)}−2φ] where n1 represents the refractive index of the first prism, θ represents the angle between the optical axis of the light flux emitted from the light source and the light flux incident on the light flux incident-side end surface, φ represents the angle between a plane orthogonal to the optical axis and the light flux incident-side end surface, and φ represents the angle between the orthogonal plane and the emitting-side inclined surface.

摘要翻译： 光学装置包括设置在从光源发射的光束行进的光路上的光学元件和设置在光学元件的光束发射侧的偏振元件。 偏振元件包括具有从光学元件射出的光束入射的光束入射侧端面和与光束入射侧端面倾斜的发光侧倾斜面的光束入射侧端面的第一棱镜， 元件体设置在发射侧倾斜表面上，偏振元件体从穿过第一棱镜的光束中透射第一线偏振光，并将垂直于第一线偏振光偏振的第二线偏振光反射向第一棱镜。 光学元件与形成在光束入射侧端面上的插入的粘合剂层与偏振元件集成。 粘合剂层的折射率n0被设定为满足下列公式：<？in-line-formula description =“In-line formula”end =“lead”？> 1 <= n1 / n0xsin [2phi-arcsin {n0 / n1xsin（theta-phi）} - 2phi] <？in-line-formula description =“In-line Formulas”end =“tail”？>其中n1表示第一个棱镜的折射率，theta表示 从光源发射的光束的光轴和入射到光束入射侧端面的光束，phi表示与光轴正交的平面与光束入射侧端面之间的角度，phi 表示正交平面和发射侧倾斜面之间的角度。

公开(公告)号：US07284133B2

公开(公告)日：2007-10-16

申请号：US10153616

申请日：2002-05-24

申请人： Takashi Watanabe ,  Masahiro Kaminaga ,  Takashi Endo ,  Seiichi Kumano

发明人： Takashi Watanabe ,  Masahiro Kaminaga ,  Takashi Endo ,  Seiichi Kumano

IPC分类号： G06F12/14

CPC分类号： H04L63/0428 ,  G06F21/75 ,  G06Q20/341 ,  G07F7/082 ,  G07F7/1008 ,  H04L9/003 ,  H04L63/06 ,  H04L2209/12

摘要： An information processing unit and methods therefore which render it more difficult to infer information being processed within an information processing unit by observing the unit's current consumption or electromagnetic radiation. Specifically, the information processing unit preferably encrypts and decrypts data when the data is read from/written to memories within the unit. The encryption/decryption process may include the use of multiple cryptographic keys, permutated data storage locations, randomly generated keys, and permutated data processing steps.

摘要翻译： 因此，信息处理单元和因此通过观察单元的电流消耗或电磁辐射而使信息处理单元内处理信息变得更加困难的方法。 具体地说，信息处理单元优选地在数据被读取/写入到单元内的存储器时对数据进行加密和解密。 加密/解密过程可以包括使用多个加密密钥，置换数据存储位置，随机生成的密钥以及置换的数据处理步骤。

公开(公告)号：US07254718B2

公开(公告)日：2007-08-07

申请号：US09940985

申请日：2001-08-29

申请人： Masahiro Kaminaga ,  Takashi Endo ,  Takashi Watanabe ,  Masaru Ohki

发明人： Masahiro Kaminaga ,  Takashi Endo ,  Takashi Watanabe ,  Masaru Ohki

IPC分类号： G06F12/14 ,  H04L9/30

CPC分类号： G06F7/723 ,  G06F9/3001 ,  G06F9/30181 ,  G06F2207/7252 ,  H04L9/003 ,  H04L9/302 ,  H04L2209/08 ,  H04L2209/127

摘要： The subject of the disclosed technology is, when a crypto-processing is performed utilizing an information processing device buried in an IC card, etc., to decrease the relationship between the waveform of the consumption current and the contents of the crypto-processing as a countermeasure against a tamper which observes the waveform of a consumption current.A solution means is shown in the following. When a decryption processing of an RSA cryptogram is performed according to CRT, in step 608, for every unit bit block of XP a modular exponentiation calculation is performed, and the partial result of CP up to the calculated bit block is stored in a memory. In step 609, for every unit bit block of XQ a modular exponentiation calculation is performed and the partial result of CQ up to the calculated bit block is stored in a memory. In step 606, a random number is generated, and in step 607, it is decided that step 608 is to be executed or step 609 is to be executed corresponding to the value of the random number.

摘要翻译： 所公开的技术的主题是，当利用埋在IC卡等中的信息处理装置进行密码处理时，将消耗电流的波形与密码处理的内容之间的关系降低为 针对观察消耗电流波形的篡改的对策。 解决方案如下所示。 当根据CRT执行RSA密码的解密处理时，在步骤608中，对于XP的每个单位比特块进行模幂运算，并将CP的部分结果存储到存储器中。 在步骤609中，对于XQ的每个单位比特块，执行模幂运算，并将CQ的部分结果存储到存储器中。 在步骤606中，产生随机数，并且在步骤607中，确定要执行步骤608或者对应于随机数的值来执行步骤609。

公开(公告)号：US20050116780A1

公开(公告)日：2005-06-02

申请号：US10805500

申请日：2004-03-19

申请人： Takashi Endo ,  Yoichi Fujii

发明人： Takashi Endo ,  Yoichi Fujii

IPC分类号： H03L1/00 ,  G04F10/00 ,  G04F10/02 ,  G07C3/04 ,  H03L7/00

CPC分类号： G07C3/04 ,  G04F10/00 ,  G04F10/02

摘要： An oscillator operated with an external power source or an external save power source is provided comprising: a clock signal generation unit for generating and outputting a clock signal; a power-on detection unit for detecting the power-on of the external power source; a power-off detection unit for detecting the power-off of the external power source; a running time count unit for counting the running time from a time of the power-on detection signal being input to a time of the power-off detection signal being input; storage means for storing accumulated running time up to a power-on time of the external power source; and a control unit for reading the running time at the time of the power-off detection signal being input, reading the accumulated running time from the storage means, adding the running time to the accumulated running time, and storing the addition result as a new accumulated running time in the storage means.

公开(公告)号：US06670860B2

公开(公告)日：2003-12-30

申请号：US09871902

申请日：2001-06-04

申请人： Yoshihiro Kobayashi ,  Takashi Endo

发明人： Yoshihiro Kobayashi ,  Takashi Endo

IPC分类号： H03B532

CPC分类号： H03B5/06

摘要： The invention provides an oscillator and a control method for controlling the oscillator which reliably oscillates even when the oscillator is driven at a low voltage. An oscillator repeats a startup operation and a suspension of the startup operation by turning on and off a switch with half a period of a Schmitt trigger oscillator circuit, until a piezoelectric oscillator circuit is put into a normal oscillation state. The oscillator thus creates a number of opportunities of transient response allowing the oscillation amplitude of the piezoelectric oscillator circuit to grow, and reliably oscillates.

公开(公告)号：US06480071B1

公开(公告)日：2002-11-12

申请号：US09699421

申请日：2000-10-31

申请人： Yoichi Fujii ,  Takashi Endo

发明人： Yoichi Fujii ,  Takashi Endo

IPC分类号： H03B536

CPC分类号： H03B5/06 ,  H03B5/323 ,  H03B5/36 ,  H03K3/014 ,  H03K3/0307 ,  H03L3/00

摘要： A piezoelectric oscillator and an electronic device are provided that can stabilize start characteristics by reducing power noise during a power supply process and which can improve oscillation stability. Included are an oscillation stage so as to generate oscillation pulses by exciting a piezoelectric resonator, an output stage to amplify and then output oscillation pulses, and a start delaying circuit so as to start the output stage later than the oscillation stage only by a selected delay time from a plurality of delay times.

摘要翻译： 提供一种压电振荡器和电子器件，其可以通过在电源处理期间降低功率噪声来稳定启动特性，并且可以提高振荡稳定性。 包括振荡级，以便通过激励压电谐振器，输出级放大然后输出振荡脉冲以及起始延迟电路产生振荡脉冲，以便比振荡级稍晚地开始输出级，仅通过所选择的延迟 时间从多个延迟时间。