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公开(公告)号：US06941002B1
公开(公告)日：2005-09-06
申请号：US09634243
申请日：2000-08-08
IPC分类号： A61B5/117 , G01B11/24 , G01B11/245 , G06K9/00 , G06T1/00
CPC分类号： G06K9/0004
摘要： A fingerprint reading system is provided, which is capable of enhancing versatility when actually used, increasing productivity and reducing costs. An illumination device emits the light from a rear surface side of an active matrix liquid crystal cell. A light guiding plate provided on a surface side of the active matrix liquid crystal cell, transmits the light coming from the rear surface side and deflects the light coming from the surface side toward one side end surface. A light receiving device provided on the side of one side surface of the light guiding plate receives the light exiting from this one side surface. A drive circuit makes the active matrix liquid crystal cell pinpoint-irradiate a fingerprint in contact with the light guiding plate by pinpointing with the light emitted from the illumination device and makes the light receiving device pinpoint-receive the light reflected by the fingerpoint, thereby obtaining an image of the fingerprint.
摘要翻译： 提供指纹读取系统，其能够在实际使用时增强多功能性，提高生产率并降低成本。 照明装置从有源矩阵液晶单元的背面侧发光。 设置在有源矩阵液晶单元的表面侧的导光板透射来自后表面侧的光，并使来自表面侧的光朝向一个侧端面偏转。 设置在导光板的一个侧面侧的光接收装置接收从该一个侧面出射的光。 驱动电路使有源矩阵液晶单元通过精确地照射从照明装置发出的光来精确地照射与导光板接触的指纹，并使受光器件精确地接收由指点反射的光，从而获得 指纹图像。
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公开(公告)号：US06401551B1
公开(公告)日：2002-06-11
申请号：US09634660
申请日：2000-08-07
IPC分类号： G01L302
CPC分类号： G06K9/0002
摘要： A fingerprint reading device is provided, which is capable of enhancing a versatility when actually used, increasing a productivity and reducing costs. The fingerprint reading device comprises an electrostatic capacity type fingerprint reading sensor provided on a liquid crystal panel, and drive circuits thereof. The fingerprint reading sensor includes detection electrodes arranged in predetermined positions, active elements connected respectively to the detection electrodes, and a protective film provided on the surface thereof.
摘要翻译： 提供了一种指纹读取装置，其能够在实际使用时提高通用性，提高生产率并降低成本。 指纹读取装置包括设置在液晶面板上的静电电容式指纹读取传感器及其驱动电路。 指纹读取传感器包括布置在预定位置的检测电极，分别连接到检测电极的有源元件和设置在其表面上的保护膜。
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公开(公告)号：US06462563B1
公开(公告)日：2002-10-08
申请号：US09638261
申请日：2000-08-11
IPC分类号： G01R2726
CPC分类号： G06K9/0002
摘要： A fingerprint reading system is provided with enhanced versatility and reduced cost. The fingerprint reading sensor includes a group of first electrodes arranged in a plurality of lines extending in a first direction, a group of second electrodes arranged in a plurality of lines extending in a second direction intersecting the first direction above the first electrode group through an interlayer insulating film, and a surface protective film formed of a dielectric material provided on the second electrode group. Drive circuits detect electrostatic capacity between each of the electrodes and a finger touching the surface protective film by sequentially applying a predetermined voltage to both groups of electrodes and measuring a change in the electrostatic capacity at each point where a second electrode crosses over a first electrode.
摘要翻译： 指纹读取系统具有增强的多功能性和降低的成本。 指纹读取传感器包括沿第一方向布置的多条线的一组第一电极，一组沿与第一电极组上方的第一方向相交的第二方向延伸的多条线，第二电极组通过中间层 绝缘膜和由设置在第二电极组上的电介质材料形成的表面保护膜。 驱动电路通过对两组电极依次施加预定电压并测量在第二电极跨越第一电极的每个点处的静电电容的变化来检测每个电极和手指接触表面保护膜之间的静电电容。
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4.发明授权Image sensor having unit light receiving circuit with sample-and-hold means 有权具有采样保持装置的单元光接收电路的图像传感器公开(公告)号：US06429413B1
公开(公告)日：2002-08-06
申请号：US09421596
申请日：1999-10-20
IPC分类号： H01L2714
CPC分类号： H04N5/2175
摘要： To eliminate a residual image due to residual charge in an image sensor circuit and provide an effective bright-time output, the image sensor is provided with a reset switch connected to a photodiode. After the potential of the photodiode is held through a first amplifier in two holding circuits as an image signal and an initial signal, the initial signal and the image signal are sequentially output through a second amplifier. By resetting the photodiode to a desired potential to produce an initial signal, a residual image can be eliminated.
摘要翻译： 为了消除由于图像传感器电路中的剩余电荷引起的残留图像并提供有效的亮时输出，图像传感器设置有连接到光电二极管的复位开关。 在通过作为图像信号和初始信号的两个保持电路中的第一放大器保持光电二极管的电位之后，通过第二放大器依次输出初始信号和图像信号。 通过将光电二极管复位到期望的电位以产生初始信号，可以消除残留图像。
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公开(公告)号：US06303919B1
公开(公告)日：2001-10-16
申请号：US09299467
申请日：1999-04-26
IPC分类号： H01L27148
CPC分类号： H01L27/14609 , H01L27/14623
摘要： A light receiving element is provided with a phototransistor and a light receiving MOS diode proximate thereto and having a gate electrode covering a portion of the base region of the phototransistor. The gate electrode permits transmission of a portion of received light. The light receiving MOS diode forms an inversion layer in a substrate adjacent the base of a phototransistor during the time photo charges are stored, and generated photo charges are stored in the inversion region and the base region of the phototransistor. During the storage state, the potential of the inversion region and the base region of the phototransistor is limited, so that the intensity of an electric field applied to an insulating film between the electrode and the semiconductor substrate is 0.7 MV/cm or less. Alternatively, the potential of the electrode in a waiting state is fixed or made floating, so that an electric field is not applied, and recombination at the surface of the semiconductor substrate is made stable.
摘要翻译： 光接收元件设置有光电晶体管和靠近其的光接收MOS二极管，并且具有覆盖光电晶体管的基极区域的一部分的栅电极。 栅电极允许传输一部分接收的光。 光接收MOS二极管在存储光电荷的时间期间在与光电晶体管的基极相邻的基板中形成反转层，并且产生的光电荷存储在光电晶体管的反转区域和基极区域中。 在存储状态期间，光电晶体管的反转区域和基极区域的电位受到限制，使得施加到电极和半导体衬底之间的绝缘膜的电场强度为0.7MV / cm以下。 或者，处于等待状态的电极的电位固定或浮置，使得不施加电场，并使半导体衬底的表面的复合稳定。
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6.发明授权Image sensor having an array of operative and dummy bipolar transistors and pairs of pixel selecting switches connected thereto 失效具有操作和双向双极晶体管阵列的图像传感器和与其连接的像素选择开关的对
公开(公告)号：US5151587A
公开(公告)日：1992-09-29
申请号：US637489
申请日：1991-01-04
IPC分类号： H04N1/028 , H01L27/146
CPC分类号： H04N5/361 , H01L27/14681 , H04N5/3692 , H04N5/374
摘要： The image sensor is comprised of an array of operative bipolar transistors. Another array of optically shielded dummy bipolar transistors are formed adjacently to the operative bipolar transistors. Reset switches are connected to base regions of the operative and dummy bipolar transistors so as to reduce variation in dark image output, to ensure linearity of output signal, and to eliminate image storage.
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7.发明授权Photo-detecting semiconductor device with passivation suppressing multi-reflections 失效具有禁止多重反射的盲目检测半导体器件
公开(公告)号：US5119156A
公开(公告)日：1992-06-02
申请号：US239524
申请日：1988-09-01
IPC分类号： H01L27/14 , H01L27/146 , H04N5/335 , H04N5/365 , H04N5/369
CPC分类号： H01L27/14678 , H01L27/1462 , H01L27/14643
摘要： A photo-detecting element is covered with a passivation film having an uneven surface to avoid multi-reflection for the monochromatic incident light. The uneven film transmits the same intensity of incident light even if the mean thickness of uneven film is not constant over the entire surface of a semiconductor substrate.
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公开(公告)号：US07394054B2
公开(公告)日：2008-07-01
申请号：US11501630
申请日：2006-08-09
申请人： Satoshi Machida , Yukito Kawahara
发明人： Satoshi Machida , Yukito Kawahara
CPC分类号： H04N5/3692 , H04N5/3575 , H04N5/363
摘要： A photoelectric converter capable of reducing random noise has a photoelectric conversion circuit that generates an optical signal in correspondence to incident light, a reset circuit connected to an output terminal of the photoelectric conversion circuit, and a first amplification circuit connected to output terminals of the photoelectric conversion circuit and the reset circuit. A first electric charge transfer unit has a terminal connected to an output terminal of the amplification circuit and a terminal connected to a first capacitor. Second and third electric charge transfer units have terminals connected to second and third amplification circuits and other terminals connected to second and third capacitors, and the second and third amplification circuits are connected to the first and second capacitors, respectively. A source follower amplifier has a gate connected to the third electric charge transfer unit and the third capacitor, and a channel selection circuit is connected to a source of the source follower amplifier. A common signal line is connected to an output terminal of the channel selection circuit, a first current source is connected to the common signal line, and a second current source is connected to the source of the source follower.
摘要翻译： 能够减少随机噪声的光电转换器具有光电转换电路，其生成与入射光对应的光信号，连接到光电转换电路的输出端的复位电路，以及连接到光电转换电路的输出端的第一放大电路 转换电路和复位电路。 第一电荷转移单元具有连接到放大电路的输出端子的端子和连接到第一电容器的端子。 第二和第三电荷转移单元具有连接到第二和第三放大电路的端子和连接到第二和第三电容器的其它端子，并且第二和第三放大电路分别连接到第一和第二电容器。 源极跟随放大器具有连接到第三电荷转移单元和第三电容器的栅极，并且沟道选择电路连接到源极跟随器放大器的源极。 公共信号线连接到信道选择电路的输出端，第一电流源连接到公共信号线，第二电流源连接到源极跟随器的源极。
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公开(公告)号：US20060266932A1
公开(公告)日：2006-11-30
申请号：US11501630
申请日：2006-08-09
申请人： Satoshi Machida , Yukito Kawahara
发明人： Satoshi Machida , Yukito Kawahara
CPC分类号： H04N5/3692 , H04N5/3575 , H04N5/363
摘要： The invention provides a photoelectric converter capable of reducing a random noise. The photoelectric converter includes: a photoelectric conversion unit having an output terminal connected to input terminals of a reset unit and an amplification unit; a hold unit for holding a reference signal generated through resetting of the output terminal of the photoelectric conversion unit; and a signal read unit for reading out to a common signal line the reference signal and an optical signal obtained after storage of electric charges generated on the basis of light made incident to a photoelectric conversion area of the photoelectric conversion unit.
摘要翻译： 本发明提供能够减少随机噪声的光电转换器。 光电转换器包括：光电转换单元，具有连接到复位单元和放大单元的输入端的输出端; 保持单元，用于保持通过复位光电转换单元的输出端产生的参考信号; 以及信号读取单元，用于向公共信号线读出参考信号和在基于入射到光电转换单元的光电转换区域的光产生的电荷的存储之后获得的光信号。
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公开(公告)号：US06643038B1
公开(公告)日：2003-11-04
申请号：US09482808
申请日：2000-01-13
IPC分类号： H04N146
CPC分类号： H04N1/486
摘要： A low-priced contact type color image sensor formed without the need to provide color filters on a linear image sensor. The color filters are formed on a surface of a document side of a transparent protective glass in direct contact with a document for flattening the light irradiation surface, such that the pitch thereof is equal to that of light receiving elements of a linear image sensor.
摘要翻译： 低成本的接触式彩色图像传感器，不需要在线性图像传感器上提供彩色滤光片。 彩色滤光片形成在与用于使光照射面平坦化的文件直接接触的透明保护玻璃的原稿侧的表面上，使得其间距等于线状图像传感器的光接收元件的间距。
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