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    • 4. 发明授权
    • Photoelectric encoder
    • 光电编码器
    • US08325066B2
    • 2012-12-04
    • US13025198
    • 2011-02-11
    • Yoshiaki Kato
    • Yoshiaki Kato
    • H03M1/22
    • G01D5/24476
    • A photoelectric encoder includes: a scale having a grating formed with a predetermined period Ps; and a detector head being movable relative to the scale and including a light source and a light receiving unit. In a configuration where light receiving elements in the light receiving unit output N-points light and dark signals (N is an integer of 3 or more), and where phases of the N-points light and dark signals are detected by a least-squares method to fit a sinusoidal function with fixed period to N-points digital signals digitized from the N-points light and dark signals, an N-points light and dark signal period P is set at an integral multiple of a data-point interval w of the N-points digital signals, and an overall length M of the light receiving elements is set at an integral multiple of the N-points light and dark signal period P. Thereby, position detecting errors occurring due to a stain of the scale and/or a defect in the grating can be reduced by simple computing.
    • 光电编码器包括:具有形成有预定周期Ps的光栅的刻度; 以及检测器头,其相对于刻度尺可移动,并且包括光源和光接收单元。 在光接收单元中的光接收元件输出N点光暗信号(N为3以上的整数)的情况下,通过最小二乘法来检测N点光暗信号的相位 将具有固定周期的正弦函数拟合为从N点光暗信号数字化的N点数字信号的方法,将N点光暗信号周期P设定为数据点间隔w的整数倍 N点数字信号和光接收元件的总长度M被设定为N点光暗信号周期P的整数倍。由此,由于刻度和/ 或者可以通过简单的计算来减少光栅中的缺陷。
    • 6. 发明授权
    • Solid-state imaging device, driving method thereof, and camera
    • 固态成像装置,其驱动方法和相机
    • US08085331B2
    • 2011-12-27
    • US12330050
    • 2008-12-08
    • Yoshiaki KatoAkiyoshi KohnoHiroshi MatsumotoTakeshi Fujita
    • Yoshiaki KatoAkiyoshi KohnoHiroshi MatsumotoTakeshi Fujita
    • H04N5/335
    • H04N5/335H04N5/372H04N5/3765
    • An objective of the present invention is to provide the solid-state imaging device and the driving method thereof which can control: a poor picture quality, such as blooming, to maximize a dynamic range of the photodiode; and a poor picture quality resulted from an incomplete read-out operation. A solid-state imaging device in the present invention includes: a solid-state imaging element; and a driving pulse controlling unit applying a driving pulse to each of read-out gates of a column CCD. The driving pulse controlling unit transfers in a column direction signal charge within a charge transfer region of the column CCD by applying a column transfer clock having a LOW level voltage and a MIDDLE level voltage, and the LOW level voltage and the MIDDLE level voltage are minus voltages.
    • 本发明的目的是提供一种可以控制如图像质量差的固态成像装置及其驱动方法,以使光电二极管的动态范围最大化; 并且由于读取操作不完整导致的图像质量差。 本发明的固态成像装置包括:固态成像元件; 以及驱动脉冲控制单元,将驱动脉冲施加到列CCD的每个读出门。 驱动脉冲控制单元通过施加具有低电平电压和中等电平的列传送时钟,在列CCD的电荷传送区域内的列方向上传送信号电荷,并且低电平电压和中间电平电压为负 电压。
    • 7. 发明授权
    • Method for driving solid-state imaging apparatus and solid-state imaging apparatus
    • 用于驱动固态成像装置和固态成像装置的方法
    • US07884872B2
    • 2011-02-08
    • US11483746
    • 2006-07-10
    • Tsuyoshi HasukaRyoichi NagayoshiKeijirou ItakuraIzumi ShimizuYoshiaki Kato
    • Tsuyoshi HasukaRyoichi NagayoshiKeijirou ItakuraIzumi ShimizuYoshiaki Kato
    • H04N5/335
    • H04N5/3592
    • A driving method is applied to a solid-state imaging apparatus having photoelectric conversion portions, transfer portion for reading out signal charges, and an excess charge draining portion for draining charges exceeding a saturation charge amount that is set by a reference voltage. One of driving modes is selected from a full pixel mode in which accumulated signal charges are detected individually for each pixel and a pixel mixing mode in which signal charges of a predetermined number of pixels are mixed to be detected. In the full pixel mode, the draining portion is supplied with the reference voltage having the same value during a charge accumulation period and a read transfer period for read transferring charges. In the pixel mixing mode, the draining portion is supplied with the reference voltage having a low level during the charge accumulation period and the reference voltage having a high level during the read transfer period. An appropriate driving for the pixel mixing mode can be performed by avoiding a limitation of a substrate voltage, without deteriorating the spectral characteristics, the sensitivity, nor the linearity.
    • 将驱动方法应用于具有光电转换部分的固态成像装置,用于读出信号电荷的转印部分和用于排出超过由参考电压设置的饱和电荷量的电荷的过量电荷排出部分。 其中一种驱动模式是从满像素模式中选择的,其中针对每个像素分别检测累积的信号电荷,以及混合预定数量的像素的信号电荷进行检测的像素混合模式。 在全像素模式中,在电荷累积期间和读取传输电荷的读取传送周期中,向排水部分提供具有相同值的参考电压。 在像素混合模式中,在读取传送周期期间,在电荷累积期间内,向排水部分供给具有低电平的参考电压。 可以通过避免衬底电压的限制而不劣化光谱特性,灵敏度和线性度来进行像素混合模式的适当驱动。
    • 8. 发明授权
    • Semiconductor device and manufacturing method thereof
    • 半导体装置及其制造方法
    • US07829957B2
    • 2010-11-09
    • US12054800
    • 2008-03-25
    • Yoshiaki KatoYoshiharu AndaAkihiko Nishio
    • Yoshiaki KatoYoshiharu AndaAkihiko Nishio
    • H01L29/76
    • H01L29/7783H01L21/8252H01L27/0605H01L27/0883
    • A semiconductor device which includes both an E-FET and a D-FET and can facilitate control of the Vth in an E-FET and suppress a decrease in the Vf, and a manufacturing method of the same are provided. A semiconductor device which includes both an E-FET and a D-FET on the same semiconductor substrate includes: a first threshold adjustment layer for adjusting threshold of the E-FET; a first etching stopper layer formed on the first threshold adjustment layer; the second threshold adjustment layer formed on the first etching stopper layer for adjusting threshold of the D-FET; a second etching stopper layer formed on the second threshold adjustment layer; a first gate electrode penetrating through the first etching stopper layer, the second threshold adjustment layer, and the second etching stopper layer, which is in contact with the first threshold adjustment layer; and the second gate electrode penetrating through the second etching stopper layer, which is in contact with the second threshold adjustment layer.
    • 包括E-FET和D-FET两者的半导体器件,并且可以有助于控制E-FET中的Vth,并抑制Vf的降低,并且提供其制造方法。 在同一半导体衬底上包括E-FET和D-FET的半导体器件包括:用于调节E-FET的阈值的第一阈值调整层; 形成在第一阈值调整层上的第一蚀刻停止层; 所述第二阈值调整层形成在所述第一蚀刻停止层上,用于调节所述D-FET的阈值; 形成在所述第二阈值调整层上的第二蚀刻停止层; 穿过与第一阈值调整层接触的第一蚀刻停止层,第二阈值调节层和第二蚀刻阻挡层的第一栅电极; 并且所述第二栅电极贯穿与所述第二阈值调整层接触的所述第二蚀刻停止层。
    • 9. 发明授权
    • Imaging apparatus and a device for use therewith
    • 成像装置及其使用的装置
    • US07795571B2
    • 2010-09-14
    • US11889919
    • 2007-08-17
    • Akiyoshi KohnoYoshiaki KatoYuji Matsuda
    • Akiyoshi KohnoYoshiaki KatoYuji Matsuda
    • H01L27/00
    • H04N5/335H04N5/361H04N5/378
    • An imaging apparatus capable of suppressing deterioration of image qualities and output properties is provided having one or more output circuits in series and a buffer circuit 6, and processing luminance signals from photodetectors to output image information, the buffer circuit performing impedance conversion on signals outputted from a final output circuit of the one or more output circuits, the final output circuit being a source follower circuit that has an active element and a current source circuit 5 which is inserted between a source terminal of the active element and a reference voltage terminal, wherein the current source circuit and the buffer circuit 6 are external to a solid-state image sensor 1 having the photodetectors, and a main part of the current source circuit 5 and a main part of the buffer circuit 6 are in a single package.
    • 提供一种能够抑制图像质量和输出特性的劣化的成像装置,其具有串联的一个或多个输出电路和缓冲电路6,并且处理来自光电检测器的亮度信号以输出图像信息,该缓冲电路对从 一个或多个输出电路的最终输出电路,最终输出电路是具有有源元件的源极跟随器电路和插入在有源元件的源极端子与参考电压端子之间的电流源电路5,其中 电流源电路和缓冲电路6在具有光电检测器的固态图像传感器1的外部,电流源电路5的主要部分和缓冲电路6的主要部分处于单个封装中。
    • 10. 发明授权
    • Solid-state imaging apparatus, driving method thereof, and camera
    • 固态成像装置,其驱动方法和相机
    • US07710483B2
    • 2010-05-04
    • US11858209
    • 2007-09-20
    • Yoshiaki Kato
    • Yoshiaki Kato
    • H04N5/335H04N9/64
    • H04N5/3595H04N5/347
    • A solid-state imaging apparatus includes: a plurality of light-receiving elements which are arranged by rows and columns; a plurality of vertical transfer units each of which is arranged for a corresponding column of the light-receiving elements, and is operable to vertically transfer a plurality of signal packets and a dummy packet in a packets-mixing mode, the signal packet including charges read from the light-receiving elements, the dummy packet being a packet other than the signal packets, and N columns of the vertical transfer units forming one column group; a plurality of holding units which are arranged in final stages of the vertical transfer units in N columns except M columns in the column group, and each of which is operable to mix, hold, and vertically transfer charges of the signal packets and the dummy packet without depending on vertical transfer from upstream of the corresponding vertical transfer unit; a horizontal transfer unit operable to mix, hold, and horizontally transfer the charges transferred from the holding units or the vertical transfer units in the M columns in the column group; and a driving unit operable to drive the vertical transfer units, the holding units, and the horizontal transfer unit, wherein the driving unit is operable to drive, in the packets-mixing mode, the holding units and the horizontal transfer unit to generate a first mixed packet and a second mixed packet in the horizontal transfer unit, the first mixed packet includes: a plurality of signal packets belonging to a same row and neighbor columns of a same color; and a dummy packet belonging to a same column as the signal packets, and the second mixed packet includes no signal packet but a plurality of dummy packets in a same column as the signal packets included in the first mixed packets.
    • 一种固态成像装置,包括:多列受行和列排列的光接收元件; 多个垂直传送单元,每个垂直传送单元被布置用于相应列的光接收元件,并且可操作用于以分组混合模式垂直传输多个信号分组和虚拟分组,所述信号分组包括读取的电荷 从所述光接收元件,所述虚拟分组是除所述信号分组之外的分组,以及形成一列组的所述垂直传送单元的N列; 多个保持单元,其布置在垂直传送单元的最后阶段中,除了列组中的M列之外的N列中,并且每个保持单元可操作以混合,保持和垂直传送信号分组和虚拟分组的电荷 不依赖于相应垂直传送单元上游的垂直传输; 水平传送单元,其可操作以混合,保持和水平传送从列组中的M列中的保持单元或垂直传送单元传送的电荷; 以及可操作以驱动垂直传送单元,保持单元和水平传送单元的驱动单元,其中驱动单元可操作以在分组混合模式下驱动保持单元和水平传送单元,以产生第一 混合分组和第二混合分组,所述第一混合分组包括:属于相同颜色的相同行和相邻列的多个信号分组; 以及属于与信号分组相同的列的虚拟分组,并且第二混合分组不包括信号分组,而是包括与包括在第一混合分组中的信号分组在同一列中的多个虚拟分组。