公开(公告)号：US07714913B2

公开(公告)日：2010-05-11

申请号：US11111014

申请日：2005-04-21

申请人： Masatoshi Sase ,  Koichi Higashi

发明人： Masatoshi Sase ,  Koichi Higashi

IPC分类号： H04N9/64 ,  H04N5/217

CPC分类号： H04N5/3575 ,  H04N5/361 ,  H04N5/3728

摘要： An optical black level control circuit comprises a digital black level adjusting circuit for generating a black level correction signal by digital processing using a given time constant when an output error between an optical black level and a reference optical black level signal is within a predetermined range so that an error becomes less than a predetermined value and an analog black level adjusting circuit for compensating for said error when said error exceeds the predetermined range.

摘要翻译： 光学黑电平控制电路包括数字黑电平调整电路，用于当光学黑电平和基准光黑电平信号之间的输出误差在预定范围内时，通过使用给定时间常数的数字处理产生黑电平校正信号，从而 误差变得小于预定值，以及模拟黑电平调整电路，用于当所述误差超过预定范围时补偿所述误差。

公开(公告)号：US20050237402A1

公开(公告)日：2005-10-27

申请号：US11111014

申请日：2005-04-21

申请人： Masatoshi Sase ,  Koichi Higashi

发明人： Masatoshi Sase ,  Koichi Higashi

IPC分类号： H04N5/18 ,  H04N5/335 ,  H04N5/357 ,  H04N5/363 ,  H04N5/369 ,  H04N5/378 ,  H04N9/72

CPC分类号： H04N5/3575 ,  H04N5/361 ,  H04N5/3728

摘要： An optical black level control circuit comprises a digital black level adjusting circuit for generating a black level correction signal by digital processing using a given time constant when an output error between an optical black level and a reference optical black level signal is within a predetermined range so that an error becomes less than a predetermined value and an analog black level adjusting circuit for compensating for said error when said error exceeds the predetermined range.

摘要翻译： 光学黑电平控制电路包括：数字黑电平调整电路，用于当光学黑电平和基准光黑电平信号之间的输出误差在预定范围内时，通过使用给定时间常数的数字处理产生黑电平校正信号，从而 误差变得小于预定值，以及模拟黑电平调整电路，用于当所述误差超过预定范围时补偿所述误差。

公开(公告)号：USRE32376E

公开(公告)日：1987-03-17

申请号：US562822

申请日：1983-12-19

申请人： Toru Fukuhara ,  Takashi Saegusa ,  Koichi Higashi

发明人： Toru Fukuhara ,  Takashi Saegusa ,  Koichi Higashi

IPC分类号： G03B7/093 ,  G03B7/099

CPC分类号： G03B7/093 ,  G03B7/09976 ,  G03B7/09979

摘要： An improved exposure control apparatus for camera comprises a metering circuit, exposure operational circuit, correction value calculating circuit and correction operational circuit. The metering circuit meters a plural number of divisional sections of the field of an object and generates a plural number of photoelectric outputs corresponding to the respective sections of the field. The exposure operational circuit calculates an exposure value from the plural number of photoelectric outputs. The correction value calculating circuit calculates correction values for correcting the distribution characteristics of said photometric outputs relative to the distribution characteristics of illumination on the focal plane of the photographing lens of the camera at the time of photographing, the correction values corresponding to the sections of the field respectively. The correction operational circuit makes a correction to the respective photoelectric outputs in accordance with the respective correction values found by above calculation.

公开(公告)号：US4306787A

公开(公告)日：1981-12-22

申请号：US208039

申请日：1980-11-18

申请人： Toru Fukuhara ,  Takashi Saegusa ,  Koichi Higashi

发明人： Toru Fukuhara ,  Takashi Saegusa ,  Koichi Higashi

IPC分类号： G03B7/093 ,  G03B7/099 ,  G03B7/08

CPC分类号： G03B7/093 ,  G03B7/09976 ,  G03B7/09979

摘要： An improved exposure control apparatus for camera comprises a metering circuit, exposure operational circuit, correction value calculating circuit and correction operational circuit. The metering circuit meters a plural number of divisional sections of the field of an object and generates a plural number of photoelectric outputs corresponding to the respective sections of the field. The exposure operational circuit calculates an exposure value from the plural number of photoelectric outputs. The correction value calculating circuit calculates correction values for correcting the distribution characteristics of said photometric outputs relative to the distribution characteristics of illumination on the focal plane of the photographing lens of the camera at the time of photographing, the correction values corresponding to the sections of the field respectively. The correction operational circuit makes a correction to the respective photoelectric outputs in accordance with the respective correction values found by above calculation.

摘要翻译： 改进的照相机曝光控制装置包括计量电路，曝光操作电路，校正值计算电路和校正操作电路。 计量电路对物体的场的多个分割部分进行测量，并产生对应于场的各个部分的多个光电输出。 曝光操作电路从多个光电输出计算曝光值。 校正值计算电路计算用于校正所述测光输出的分布特性的校正值，该校正值相对于拍摄时相机的拍摄镜头的焦平面上的照明分布特性， 场。 校正操作电路根据通过上述计算找到的各个校正值对各个光电输出进行校正。

公开(公告)号：US08139135B2

公开(公告)日：2012-03-20

申请号：US13197553

申请日：2011-08-03

申请人： Koichi Higashi

发明人： Koichi Higashi

IPC分类号： H04N5/335

CPC分类号： H01L27/14818 ,  H01L27/14831 ,  H04N5/23241 ,  H04N5/2355 ,  H04N5/378

摘要： An imaging apparatus using a CCD image sensor in which a size of a circuit for generating a voltage to be applied to a substrate of the CCD image sensor is reduced. A partial range within a voltage range from a supply voltage Vcc to 0 V is divided by a resistance voltage divider and one of different voltage values obtained as a result of voltage division is selected by a selector according to external data and outputted to a high voltage amplifier. The high voltage amplifier generates a voltage signal with a voltage expressed by VMSUB=(Vdaout−Vdd2)×(3R+R)/R+Vdd2=4×Vdaout−3×Vdd2(V) to make it a middle voltage for an exposure control signal.

摘要翻译： 使用CCD图像传感器的成像装置，其中用于产生要施加到CCD图像传感器的基板的电压的电路的尺寸减小。 从电源电压Vcc到0V的电压范围内的部分范围由电阻分压器分压，并且根据外部数据由选择器选择作为分压结果获得的不同电压值中的一个，并输出到高电压 放大器 高压放大器产生电压信号，其电压由VMSUB =（Vdaout-Vdd2）×（3R + R）/ R + Vdd2 = 4×Vdaout-3×Vdd2（V）表示，使其成为曝光的中间电压 控制信号。

公开(公告)号：US4322153A

公开(公告)日：1982-03-30

申请号：US231146

申请日：1981-02-03

申请人： Akira Katayama ,  Koichi Higashi

发明人： Akira Katayama ,  Koichi Higashi

IPC分类号： G03B17/20 ,  G03B13/02

CPC分类号： G03B17/20

摘要： A display device within the viewfinder of a camera capable of selectively setting an aperture priority automatic shutter speed control mode, a shutter speed priority automatic aperture control mode or a program exposure control mode includes a first display portion capable of displaying a preset aperture value, a second display portion capable of displaying a preset shutter speed, and a third display portion capable of displaying at least one of an automatically controlled aperture value and an automatically controlled shutter speed. The display device further includes display clearing means for clearing the display by the second display portion in response to the selection of the aperture priority automatic shutter speed control mode, clearing the display by the first display portion in response to the selection of the shutter speed priority automatic aperture control mode, and clearing the displays by the first and second display portions in response to the selection of the program exposure control mode.

摘要翻译： 在能够选择性地设置光圈优先自动快门速度控制模式，快门速度优先自动光圈控制模式或节目曝光控制模式的相机取景器内的显示装置包括能够显示预设光圈值的第一显示部分， 能够显示预设快门速度的第二显示部分和能够显示自动控制的光圈值和自动控制的快门速度中的至少一个的第三显示部分。 显示装置还包括显示清除装置，用于响应于选择光圈优先自动快门速度控制模式来清除第二显示部分的显示，响应于快门速度优先级的选择来清除第一显示部分的显示 自动光圈控制模式，并且响应于对节目曝光控制模式的选择，由第一和第二显示部分清除显示。

公开(公告)号：USD605271S1

公开(公告)日：2009-12-01

申请号：US29335870

申请日：2009-04-23

申请人： Hiroshi Sata ,  Takashi Ikeda ,  Tetsuya Yamashita ,  Koji Asakura ,  Koichi Higashi

设计人： Hiroshi Sata ,  Takashi Ikeda ,  Tetsuya Yamashita ,  Koji Asakura ,  Koichi Higashi

公开(公告)号：US06937174B2

公开(公告)日：2005-08-30

申请号：US10701647

申请日：2003-11-05

申请人： Koichi Higashi ,  Kyoji Matsusako

发明人： Koichi Higashi ,  Kyoji Matsusako

IPC分类号： G11C27/02 ,  H03K5/00 ,  H03K5/24 ,  H03K17/00 ,  H03M1/00 ,  H03M1/12

CPC分类号： H03K5/2481 ,  G11C27/02 ,  H03K5/249

摘要： The objective is to provide a sampling/holding circuit that can operate at high speed and low power consumption. The sampling/holding circuit has multiple sampling units 2-1˜k. Each sampling unit has input terminals 1-1˜k and output terminals 3-1˜k. The values received at the input terminals are sampled, and the sample values are accumulated. Also, the accumulated sample values are generated at output terminals 3-1˜k. One holding unit 6 has an input terminal 5 and an output terminal 7, which are shared by the multiple sampling units. By multiplexing the outputs of the multiple sampling units, multiplexing unit 4 connects any output to the input of holding unit 6. Holding unit 6 holds the sample value and generates it at output 7.

摘要翻译： 目的是提供一种可在高速和低功耗下工作的取样/保持电路。 采样/保持电路具有多个采样单元2-1〜k。 每个采样单元具有输入端子1〜1〜k和输出端子3〜1〜k。 对输入端子接收到的数值进行采样，累加采样值。 此外，累积的采样值在输出端子3-1〜k处产生。 一个保持单元6具有由多个采样单元共享的输入端子5和输出端子7。 通过复用多个采样单元的输出，复用单元4将任何输出连接到保持单元6的输入。 保持单元6保存采样值并在输出7产生。

公开(公告)号：US06370175B1

公开(公告)日：2002-04-09

申请号：US09288655

申请日：1999-04-09

申请人： Chikaho Ikeda ,  Koichi Higashi

发明人： Chikaho Ikeda ,  Koichi Higashi

IPC分类号： H01S310

CPC分类号： H04N1/40037 ,  H01S5/0427 ,  H01S5/06812 ,  H01S5/06835 ,  H04N1/4015

摘要： The object of the present invention is to precisely correct the luminous energy of a laser beam on a scanned surface which varies according to scanning and varies according to an angle of incidence with the scanned surface when a laser beam emitted from a semiconductor laser for emitting a laser beam having luminous energy according to supply current is scanned on the scanned surface via a scanning optical system. To achieve the above object, only modulation current when supply current supplied to a semiconductor laser is divided into threshold current having a current value in the vicinity in the spontaneous emission area of an extrapolated point which is an intersection with an axis when a linear part corresponding to a laser emission area in the supply current-to-output luminous energy characteristic of the semiconductor laser is extrapolated up to the axis showing that luminous energy is zero and modulation current which is a residual current component acquired by subtracting threshold current from supply current is regulated based upon a gain control value acquired by multiplying a gain set value which functions as the criterion of gain for converting image data to modulation current by a correction coefficient according to an angle of incidence.

摘要翻译： 本发明的目的是精确地校正扫描表面上的激光束的光能，其根据扫描而变化，并且当从用于发射的半导体激光器发射的激光束时，根据与扫描表面的入射角度而变化 通过扫描光学系统在被扫描的表面上扫描具有根据电源电流的光能的激光束。为了实现上述目的，仅当提供给半导体激光器的电源电流时调制电流被分成在附近具有电流值的阈值电流 在与半导体激光器的电源电流输出光能特性中的与激光发射面积对应的线性部分外推到直到发光的轴的轴线为轴的交点的外推点的自发发射面积 能量为零，调制电流是通过减去thresh获得的剩余电流分量 基于通过将用作将图像数据变换为调制电流的增益准则的增益设定值乘以根据入射角的校正系数而获得的增益控制值来调节来自电源电流的老电流。

公开(公告)号：US08633988B2

公开(公告)日：2014-01-21

申请号：US12845180

申请日：2010-07-28

申请人： Koichi Higashi ,  Norihiko Kuroishi

发明人： Koichi Higashi ,  Norihiko Kuroishi

IPC分类号： H04N9/04

CPC分类号： H04N5/3765

摘要： One or more control signals in specified output states are generated at one time at a predetermined timing. A command generation section generates control data, piece by piece at each predetermined timing, corresponding to the plural control signals. A register sequentially receives the generated control data at the each predetermined timing and outputs one or more pieces of the control data to a command execution section at one time at a timing predetermined for the one or more pieces of the control data. The command execution section generates, at one time, one or more control signals of a value or values corresponding to the one or more pieces of the control data received from the register at one time at a timing predetermined for the one or more pieces of the control data.

摘要翻译： 规定的输出状态下的一个以上的控制信号在规定的时刻一次产生。 命令生成部，对应于多个控制信号，在每个预定定时逐个生成控制数据。 寄存器在每个预定定时顺序地接收所生成的控制数据，并且在为一个或多个控制数据预定的时刻一次将一个或多个控制数据输出到命令执行部分。 命令执行部分一次生成一个或多个控制信号，该控制信号对应于从一个或多个片段预定的时刻一次从寄存器接收的一个或多个控制数据的值或值 控制数据。