公开(公告)号：US5732295A

公开(公告)日：1998-03-24

申请号：US639377

申请日：1996-04-26

申请人： Yoichi Seki ,  Hiroyuki Saito ,  Teruyo Miyata ,  Tetsumi Kaneoka

发明人： Yoichi Seki ,  Hiroyuki Saito ,  Teruyo Miyata ,  Tetsumi Kaneoka

IPC分类号： G03B7/26 ,  G03B17/18 ,  G03B17/24 ,  G01N27/42

CPC分类号： G03B7/26

摘要： A camera with a battery checking function is provided with a timer for generating an output signal at predetermined time intervals, a memory for storing a calculated time value, an external switch for generating an activating signal for activating the camera, and a microcomputer for activating the camera in response to the activating signal generated by the external switch, for updating the content of the memory in accordance with the output of the timer at first time intervals when the camera is activated, for placing the camera in a standby mode when the activating signal has not been detected for a predetermined period of time, and for updating the content of the memory in accordance with the output of the timer means at second time intervals, longer than the first time intervals, when the camera is in a standby mode. A voltage detector detects the voltage of a battery at third time intervals when the camera is activated and detects the voltage of the battery at fourth time intervals when the camera is in the standby mode. A display indicates the charge level of the battery.

摘要翻译： 具有电池检查功能的相机设置有用于以预定时间间隔产生输出信号的定时器，用于存储计算出的时间值的存储器，用于产生用于启动相机的激活信号的外部开关，以及用于激活 照相机响应于由外部开关产生的激活信号，用于当激活摄像机时以第一时间间隔根据定时器的输出来更新存储器的内容，以便在激活信号时将相机置于待机模式 在相机处于待机模式时，在预定时间段内尚未检测到用于根据定时器装置的输出以比第一时间间隔长的第二时间间隔更新存储器的内容。 当摄像机被激活时，电压检测器以第三时间间隔检测电池的电压，并且当相机处于待机模式时以第四时间间隔检测电池的电压。 显示屏显示电池的充电水平。

公开(公告)号：US5742524A

公开(公告)日：1998-04-21

申请号：US653431

申请日：1996-05-24

申请人： Akira Ito ,  Hiroyuki Saito ,  Teruyo Miyata

发明人： Akira Ito ,  Hiroyuki Saito ,  Teruyo Miyata

IPC分类号： G01C3/06 ,  G01S7/486 ,  G01S17/10 ,  G02B7/32 ,  G03B13/36

CPC分类号： G01S7/486 ,  G01S17/10 ,  G02B7/32

摘要： In order to improve the accuracy and reliability of a distance measurement device of the light-projecting type, the device is provided with a reference voltage generator for generating a reference voltage having a level dependent upon whether or not a light is being projected. The distance measurement device includes a light projecting circuit for projecting pulsed light onto an object, a light receiving circuit for receiving the light projected by the light projecting circuit and reflected by the object, current-to-voltage conversion circuitry for converting a current output by the light receiving circuit into a corresponding voltage, amplifier circuitry for amplifying the output signals of the current-to-voltage conversion circuits, an integration circuit for integrating the output signal of the amplifier circuit, a level judgement circuit for judging the level of the output signal of the integration circuit by comparing it with a reference voltage, and an arithmetic circuit for switching the reference voltage depending on whether the light-projecting circuit is projecting light and for calculating the distance of the object based on the output of the level judgement circuit.

摘要翻译： 为了提高投光型的距离测量装置的精度和可靠性，该装置设置有参考电压发生器，用于产生具有取决于是否投射光的电平的参考电压。 距离测量装置包括用于将脉冲光投射到物体上的光投射电路，用于接收由投光电路投影并被物体反射的光的光接收电路，用于将电流输出转换为电流输出的电流 - 电压转换电路 光接收电路成为相应的电压，用于放大电流 - 电压转换电路的输出信号的放大器电路，用于积分放大器电路的输出信号的积分电路，用于判断输出电平的电平判断电路 通过将积分电路与参考电压进行比较来产生积分电路的信号;以及运算电路，用于根据投光电路是否投射光来切换参考电压，并根据电平判断电路的输出来计算物体的距离 。

公开(公告)号：US6144806A

公开(公告)日：2000-11-07

申请号：US135173

申请日：1993-10-12

申请人： Yoichi Seki ,  Hiroyuki Saito ,  Teruyo Hayakawa

发明人： Yoichi Seki ,  Hiroyuki Saito ,  Teruyo Hayakawa

IPC分类号： G03B7/24 ,  G03B17/00 ,  G03B17/30

CPC分类号： G03B17/30 ,  G03B17/00 ,  G03B7/24 ,  G03B2206/00 ,  G03B2206/008

摘要： A camera has a back cover movable between a closed state and an open state to enable a film case to be installed in and removed from the camera. A detector detects the transition of the cover between the closed state and the open state. A data register stores control data, and a control circuit receives the control data from the data register for controlling operation of the camera. The control data is transferred temporarily from the data register to an EEPROM when the back cover makes the transition from the closed state to the open state. The control data is then transferred back from the EEPROM to the data register when the back cover makes the transition from the open state to the closed state. By temporarily storing the control data in an EEPROM when the back cover is open, and transferring the control data from the EEPROM back to the data register when the back cover is closed, the adverse effects of static electricity, external noise or resetting of the control circuit are prevented from disrupting the operation of the camera.

摘要翻译： 相机具有可在关闭状态和打开状态之间移动的后盖，以使得胶卷盒能够安装在相机中并从相机中移除。 检测器检测盖子在关闭状态和打开状态之间的转变。 数据寄存器存储控制数据，并且控制电路从数据寄存器接收控制数据，以控制摄像机的操作。 当后盖从关闭状态转换到打开状态时，控制数据从数据寄存器临时传送到EEPROM。 然后，当后盖从打开状态转换到关闭状态时，控制数据从EEPROM传回数据寄存器。 当后盖打开时，通过将控制数据临时存储在EEPROM中，并且当后盖关闭时将控制数据从EEPROM传回数据寄存器，静电，外部噪声或控制复位的不利影响 防止电路中断相机的操作。

公开(公告)号：US5365305A

公开(公告)日：1994-11-15

申请号：US23011

申请日：1993-02-25

申请人： Yoichi Seki ,  Hiroyuki Saito

发明人： Yoichi Seki ,  Hiroyuki Saito

IPC分类号： G03B7/26 ,  G03B17/18

CPC分类号： G03B17/18 ,  G03B7/26 ,  G03B2217/007

摘要： In a power supply control circuit for a display of a camera, when an operation signal is input, a control circuit determines that an operation mode exists and activates a boosting circuit and a voltage dividing circuit. The control circuit activates a power supply switching circuit to switch the power supply for a display unit driving circuit to the output of the voltage dividing circuit. In response to the input operation signal, the control circuit executes such processes as photographing, film rewinding and/or film loading by the operation of the rear lid switch, etc. Upon completion of the operation, the control circuit sets the mode to a waiting mode, and monitors the detection output of a battery voltage detecting circuit. If the voltage of the battery exceeds a predetermined voltage stored in the ROM in the control circuit, the control circuit determines that the battery voltage has been restored, and applies a power supply switching signal to a power supply switching circuit, so that the power supply for the display unit driving circuit is switched to the battery and the boosting circuit and the converting circuit are both deactivated

摘要翻译： 在用于显示摄像机的电源控制电路中，当输入操作信号时，控制电路确定存在操作模式并激活升压电路和分压电路。 控制电路启动电源切换电路，将显示单元驱动电路的电源切换到分压电路的输出。 响应于输入操作信号，控制电路通过后盖开关的操作等执行诸如拍摄，胶片倒带和/或胶卷装载之类的处理。在操作完成时，控制电路将模式设置为等待 模式，并监视电池电压检测电路的检测输出。 如果电池的电压超过控制电路中存储在ROM中的预定电压，则控制电路确定电池电压已经恢复，并且将电源切换信号施加到电源开关电路，使得电源 因为显示单元驱动电路切换到电池，并且升压电路和转换电路都被去激活

公开(公告)号：US5327070A

公开(公告)日：1994-07-05

申请号：US874496

申请日：1992-04-27

申请人： Yoichi Seki ,  Shinichi Endo ,  Hiroyuki Saito ,  Akira Ito ,  Michio Kawai

发明人： Yoichi Seki ,  Shinichi Endo ,  Hiroyuki Saito ,  Akira Ito ,  Michio Kawai

IPC分类号： H01L33/00 ,  G02B7/32 ,  H05B33/08 ,  G03B13/36 ,  G05F1/62

CPC分类号： H05B33/0815 ,  H05B33/0818 ,  Y02B20/346

摘要： In a step-up circuit for causing the emission of light of a distance measuring light emitting element, the step-up circuit outputs a step-up voltage from one terminal of a step-up capacitor. A step-up voltage level changeover circuit applies a step-up voltage to the capacitor every time the distance measuring light emitting element emits light that is higher than the step-up voltage in the normal state. The number of parts is reduced by eliminating a separate capacitor for light emission, the space for the circuit is reduced by using the capacitor having a small capacity, the soldering steps for fabrication of the circuit are automated; and the costs for assembly are ameliorated owing to the automation.

摘要翻译： 在用于使距离测量发光元件发光的升压电路中，升压电路从升压电容器的一个端子输出升压电压。 每当距离测量发光元件发射高于正常状态下的升压电压的光时，升压电压电平转换电路将升压电压施加到电容器。 通过消除用于发光的单独的电容器来减少部件的数量，通过使用具有小容量的电容器来减少电路的空间，用于制造电路的焊接步骤是自动化的; 由于自动化，装配成本得到改善。

公开(公告)号：US5444511A

公开(公告)日：1995-08-22

申请号：US144827

申请日：1993-10-29

申请人： Yoichi Seki ,  Hiroyuki Saito ,  Akira Ito ,  Isamu Ishii ,  Yoshiyuki Iwamatsu

发明人： Yoichi Seki ,  Hiroyuki Saito ,  Akira Ito ,  Isamu Ishii ,  Yoshiyuki Iwamatsu

IPC分类号： G02B7/32 ,  G03B13/36

CPC分类号： G02B7/32

摘要： A distance measuring device may be constructed utilizing a reduced number of components by calculating distance on the basis of the duration of an integration. Pulsed light is projected toward an object. A selecting circuit selectively outputs one of a pair of output voltages from two current-voltage converting circuits, each of which is connected to a position sensitive device which is configured to receive light reflected from the object. A variable-gain amplifying circuit is used for amplifying the selected output voltage and for producing an amplified output voltage. The output voltage of the amplifying circuit is integrated by an integrating circuit. Reference voltage generating circuitry generates two reference voltages having different levels and a comparing circuit compares the output voltage of the integrating circuit with one of a pair of reference voltages. Gain selecting circuitry is used for determining the gain of the variable-gain amplifying circuit on the basis of the output result of the comparing circuit. The distance to the object is determined in accordance with the duration of time that integration is performed by the integrating circuit until the integrated output voltage exceeds one of the reference voltages. Thus, distance may be determined in accordance with the magnitude of the integrated output voltage, the number of times integration is performed or the number of light projections performed by the device.

摘要翻译： 可以通过基于积分的持续时间计算距离来利用减少数量的部件来构造距离测量装置。 脉冲光被投射到物体上。 选择电路选择性地输出来自两个电流 - 电压转换电路的一对输出电压中的一个，每个电流电压转换电路连接到位置敏感器件，位置敏感器件被配置为接收从物体反射的光。 可变增益放大电路用于放大所选择的输出电压并产生放大的输出电压。 放大电路的输出电压由积分电路集成。 参考电压产生电路产生具有不同电平的两个参考电压，并且比较电路将积分电路的输出电压与一对参考电压中的一个进行比较。 增益选择电路用于根据比较电路的输出结果确定可变增益放大电路的增益。 根据由积分电路进行积分的持续时间直到积分输出电压超过基准电压之一来确定到物体的距离。 因此，可以根据集成输出电压的大小，执行积分的次数或由装置执行的光投影的数量来确定距离。

公开(公告)号：US5317357A

公开(公告)日：1994-05-31

申请号：US801762

申请日：1991-11-29

申请人： Yoichi Seki ,  Teruyo Hayakawa ,  Hiroyuki Saito ,  Shinichi Endo

发明人： Yoichi Seki ,  Teruyo Hayakawa ,  Hiroyuki Saito ,  Shinichi Endo

IPC分类号： G03B7/091 ,  G03B17/00 ,  H03K17/00 ,  H04N5/225

CPC分类号： G03B17/00

摘要： A data input-output device for a camera comprises a data input interface having first and second switches for generating input data, first and second flip-flops for latching input data generated by opening and closing the first and second switches, a data converting circuit for converting the input data generated by opening and closing the first and second switches to digital data by a combination of the input data generated by opening and closing the first and second switches and of output data of the first and second flip-flops, a plurality of AND circuits in which the digital data converted by the data converting circuit is inputted, and a data output interface for outputting a plurality of digital data from AND logic obtained by the plurality of AND circuits. The device has the advantages of enabling a reduction in the number of terminals when manufactured as an IC, simplifies the pattern of a printed circuit board due to its simple random logic, and permits the mounting of the elements in high density.

摘要翻译： 一种用于照相机的数据输入输出装置，包括具有用于产生输入数据的第一和第二开关的数据输入接口，用于锁定通过打开和关闭第一和第二开关产生的输入数据的第一和第二触发器，用于 将通过打开和关闭第一和第二开关产生的输入数据与第一和第二触发器的输出数据的组合将通过打开和关闭第一和第二开关产生的输入数据转换成数字数据，多个 输入由数据转换电路转换的数字数据的AND电路，以及用于通过多个AND电路获得的AND逻辑输出多个数字数据的数据输出接口。 该器件具有在作为IC制造时能够减少端子数量的优点，由于其简单的随机逻辑而简化了印刷电路板的图案，并且允许高密度地安装元件。

公开(公告)号：US5099209A

公开(公告)日：1992-03-24

申请号：US599327

申请日：1990-10-17

申请人： Yoichi Seki ,  Hiroyuki Saito ,  Teruyo Hayakawa

发明人： Yoichi Seki ,  Hiroyuki Saito ,  Teruyo Hayakawa

IPC分类号： G01R19/00 ,  G01R19/165 ,  G06F1/28 ,  H03M1/52

CPC分类号： G01R19/16542

摘要： A battery voltage detecting device has a circuit for separately detecting the time it takes for a capacitor to be charged to a second reference voltage, in response to the application of a battery voltage and a first reference voltage to the capacitor. A calculating circuit determines the battery voltage from the charging times of the capacitor and the values of the reference voltages.

摘要翻译： 电池电压检测装置具有电路，用于响应于向电容器施加电池电压和第一参考电压，分别检测电容器被充电到第二参考电压所花费的时间。 计算电路根据电容器的充电时间和参考电压的值确定电池电压。

公开(公告)号：US5621347A

公开(公告)日：1997-04-15

申请号：US288485

申请日：1994-08-10

申请人： Hiroyuki Saito ,  Yoichi Seki ,  Akira Ito

发明人： Hiroyuki Saito ,  Yoichi Seki ,  Akira Ito

IPC分类号： G03B7/08 ,  H01L21/822 ,  H01L27/04 ,  G05F1/10 ,  G05F3/02

CPC分类号： G03B7/0807

摘要： In order to reduce noise in a controlling circuit including digital circuitry and analog circuitry constructed together on a single CMOS integrated circuit, a regulator is constructed as part of the integrated circuit. A power supply is directly connected to the digital circuitry, and a voltage output of the regulator is supplied to the analog circuitry. The output state of the regulator may be controlled by a switch. Degradation of the performance characteristics of the analog circuitry while the digital circuitry is being operated can be prevented by electrically isolating the power supply to the digital circuitry from the power supply to the analog circuitry. Since the regulator is built into the integrated circuit, the number of externally provided components is thereby reduced, further contributing to the downsizing of an electronic device such as a camera. Furthermore, even when the power supply of the digital circuitry fluctuates greatly, the effects on the analog circuitry are minimized.

摘要翻译： 为了减少包括数字电路和在单个CMOS集成电路上一起构成的模拟电路的控制电路中的噪声，调节器被构造为集成电路的一部分。 电源直接连接到数字电路，并且调节器的电压输出被提供给模拟电路。 调节器的输出状态可以由开关控制。 可以通过将数字电路的电源与模拟电路的电源电隔离来防止数字电路正在运行时模拟电路的性能特性的降低。 由于调节器内置在集成电路中，因此减少了外部提供的部件的数量，这进一步有助于诸如照相机的电子设备的小型化。 此外，即使当数字电路的电源波动很大时，对模拟电路的影响也被最小化。

公开(公告)号：US5610680A

公开(公告)日：1997-03-11

申请号：US449816

申请日：1995-05-24

申请人： Yoichi Seki ,  Michio Kawai ,  Hiroyuki Saito ,  Akira Ito

发明人： Yoichi Seki ,  Michio Kawai ,  Hiroyuki Saito ,  Akira Ito

IPC分类号： G01C3/06 ,  G01S7/491 ,  G01S17/46 ,  G02B7/32 ,  G03B13/36 ,  G03B3/00

CPC分类号： G02B7/32 ,  G01S17/46 ,  G01S7/4912 ,  G01S7/4918

摘要： A distance measuring apparatus for a camera comprises a light projecting device for projecting light to an object to be photographed, a light receiving circuit for receiving light projected by the light projecting device and reflected by the object to be photographed and for converting the reflected light into first and second output signals, a first selecting device for selecting the first output signal, and a second selecting device for selecting one of the first and second output signals. A first signal processing circuit is connected to the first selecting device for processing the output signal selected by the first selecting device. A second signal processing circuit is connected to the second selecting device for processing the output signal selected by the second selecting device. A first memory stores output signals of the first and second signal processing circuits, the output signals being generated upon operation of the light projecting device when the first selecting device selects the first output signal and the second selecting device selects the second output signal. A second memory stores output signals of the first and second signal processing circuits, the output signals being generated upon operation of the light projecting device when the first and the second selecting devices both select the first output signal. A calculation circuit calculates a distance to the object to be photographed by adjusting an output of the first memory by an output of the second memory.

摘要翻译： 照相机的距离测量装置包括用于将光投射到被拍摄物体的光投射装置，用于接收由投光装置投影并被被拍摄物体反射的光并将反射光转换成 第一和第二输出信号，用于选择第一输出信号的第一选择装置和用于选择第一和第二输出信号之一的第二选择装置。 第一信号处理电路连接到第一选择装置，用于处理由第一选择装置选择的输出信号。 第二信号处理电路连接到第二选择装置，用于处理由第二选择装置选择的输出信号。 第一存储器存储第一和第二信号处理电路的输出信号，当第一选择装置选择第一输出信号并且第二选择装置选择第二输出信号时，输出信号是在投光装置工作时产生的。 第二存储器存储第一和第二信号处理电路的输出信号，当第一和第二选择装置都选择第一输出信号时，输出信号是在光投射装置的工作时产生的。 计算电路通过第二存储器的输出调节第一存储器的输出来计算到要拍摄对象的距离。