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公开(公告)号：US4392727A
公开(公告)日：1983-07-12
申请号：US301096
申请日：1981-09-10
CPC分类号： G03B7/085
摘要： A controlling device that determines the diaphragm aperture of the camera in accordance with an output of a light measuring circuit, which detects a light from an object to be photographed being illuminated by a light which includes an alternatingly changing component and has its intensity maintained constant in effect for a given time period. The device is equipped with a smoothing circuit for smoothing the ripple component in the photoelectric output. The smoothing circuit is set to have a charge time constant smaller than the discharge time constant and generates an output equivalent to the peak value of the ripple component. The light that illuminates the photographic object can be generated from the electronic flash and the photoelectric detector may be arranged within the body of a camera to receive the light from the photographic object that passes through the diaphragm aperture of the camera.
摘要翻译： 根据检测来自被拍摄物体的光的光测量电路的输出来确定相机的光圈孔径的控制装置被包含交替变化的部件并且其强度保持恒定的光照射 在给定时间段内的效果。 该器件配有一个平滑电路，用于平滑光电输出中的纹波分量。 平滑电路被设置为具有小于放电时间常数的充电时间常数，并且产生与波纹分量的峰值相当的输出。 可以从电子闪光灯产生照射物体的光，并且光电检测器可以布置在照相机的主体内，以接收来自照相物体的通过照相机的光圈孔的光。
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公开(公告)号：US4166679A
公开(公告)日：1979-09-04
申请号：US809472
申请日：1977-06-23
CPC分类号： G03B7/083
摘要： The present invention is an exposure information setting circuit for use in photographic cameras which calculates the required exposure time in response to input signals indicative of APEX indices and produces a signal indicative of the exposure time. The circuit is constituted mainly by an integrated circuit which takes advantage of the fact that although the absolute values of electrical characteristics of the circuit elements may fluctuate, particular ratios of such values can be maintained in a predetermined ratio with good precision. This maintenance of the particular ratios can be achieved without requiring any supplementary voltage sources or/and adjustment resistors, whereby large-scale production of the exposure information setting circuit at low cost is possible.
摘要翻译： 本发明是一种用于照相机的曝光信息设置电路，其根据表示APEX索引的输入信号计算所需的曝光时间并产生指示曝光时间的信号。 该电路主要由集成电路构成，其利用了尽管电路元件的电气特性的绝对值可能波动的事实，但是这些值的特定比例可以以高精度保持在预定比率。 可以在不需要任何辅助电压源或/和调整电阻器的情况下实现特定比率的维护，从而可以以低成本大规模生产曝光信息设置电路。
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3.发明授权Automatic electronic flash device producing preliminary flash light and primary flash light 失效自动电子闪光装置产生初步闪光灯和主闪光灯
公开(公告)号：US4349260A
公开(公告)日：1982-09-14
申请号：US220290
申请日：1980-12-29
申请人： Tokuji Ishida , Masayoshi Sahara
发明人： Tokuji Ishida , Masayoshi Sahara
CPC分类号： G03B15/05 , G03B2215/05
摘要： An automatic electronic flash device capable of producing both a preliminary flash light used for automatic determination of a diaphragm aperture of a camera and a primary flash light used for actual photographing has signal contacts which are less in number than the signals to be transmitted from the camera to the flash device for the control of the production of the preliminary and primary flash lights. Thus, a common signal contact is used for transmission of both a preliminary flash control signal and a primary flash stop signal. The flash device is provided with a control circuit which properly delivers the two signals to a preliminary flash control circuit section and a primary flash termination circuit section of the flash device in dependence upon whether or not a synchronizing signal for initiating the production of the primary flash light appears at the synchronizing contacts. The preliminary flash control signal controls both initiation and termination of the production of the preliminary flash light in an embodiment and only termination of the production of the preliminary flash light in another embodiment, with which another signal contact is used for receiving a preliminary flash command signal for initiating the production of the preliminary flash light from the camera.
摘要翻译： 能够产生用于自动确定相机的光圈孔径的预备闪光灯和用于实际拍摄的主闪光灯的自动电子闪光灯装置具有的信号触点数量小于从相机发送的信号数量 到闪光灯设备，用于控制预备和主闪光灯的生产。 因此，公共信号触点用于传输预备闪光控制信号和主闪光灯停止信号。 闪存装置设置有控制电路，其根据是否用于开始生产主闪光灯的同步信号将两个信号正确地传送到闪光装置的初始闪光控制电路部分和主闪光终端电路部分 光线出现在同步触点上。 在另一实施例中，初步闪光控制信号控制在一个实施例中初步闪光灯的产生的起始和终止，并且仅在另一个实施例中终止预备闪光灯的产生，通过该初步闪光控制信号，另一个信号触点用于接收初步闪光指令信号 用于启动从相机产生初步闪光灯。
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公开(公告)号：US4496230A
公开(公告)日：1985-01-29
申请号：US395991
申请日：1982-07-16
CPC分类号： G03B7/16
摘要： A flash photography system for a camera which is adapted to be used with an electronic flash device which supplies a control signal when the device is a ready condition. The camera includes a diaphragm control circuit which automatically control the diaphragm aperture in accordance with a measurement of the light from the scene to be photographed. The diaphragm control circuit includes a circuit for producing a first program signal for controlling the diaphragm aperture and camera exposure time in a first programmed relationship with the light measurement for daylight or natural light photography, and a circuit for produces a second program signal for controlling the diaphragm aperture in a second programmed relationship with the light measurement for flash photography. The second program signal is adapted to provide a proper exposure for the ambient light condition as well as the flash light illumination.
摘要翻译： 一种用于相机的闪光摄影系统，其适于与当该装置处于就绪状态时提供控制信号的电子闪光装置一起使用。 照相机包括光圈控制电路，其根据要拍摄的场景的光的测量自动地控制光阑孔径。 光阑控制电路包括用于产生用于控制光阑孔径的第一程序信号和与日光或自然光摄影的光测量成第一编程关系的照相机曝光时间的电路，以及用于产生第二程序信号的电路， 光圈孔径与闪光摄影的光线测量值成二次关系。 第二程序信号适于为环境光条件以及闪光照明提供适当的曝光。
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5.发明授权
公开(公告)号：US4351594A
公开(公告)日：1982-09-28
申请号：US231670
申请日：1981-02-05
申请人： Tokuji Ishida , Masayoshi Sahara
发明人： Tokuji Ishida , Masayoshi Sahara
CPC分类号： G03B7/083 , G03B15/05 , G03B7/16 , G03B2215/05
摘要： A flash photography system adapted for the combination of an electronic flash device and a photographic camera with an electrically controlled shutter which, as in the case of two-curtain type focal plane shutters, effects film exposure with a slit scanning or sweeping over the film surface. To enable full film exposure of a scene being illuminated by the flash light, the electronic flash tube is controlled to emit light at a constant light intensity for a period sufficient enough to cover the time during which the shutter slit completes its travel. The flash light emission is initiated in synchronization with the actuation of the shutter, i.e., the commencement of the scanning or sweeping of the shutter slit. The flash light may be emitted prior to the shutter operation for the determination of camera diaphragm aperture.
摘要翻译： 一种闪光摄影系统，适用于电子闪光装置和照相机与电控快门的组合，其如在双帘型焦平面快门的情况下，利用狭缝扫描或扫过薄膜表面进行胶片曝光 。 为了使得由闪光灯照亮的场景的全部胶片曝光，电子闪光管被控制为以恒定的光强度发光足够长的时间以覆盖快门狭缝完成其行进的时间。 与快门的致动同步开始闪光发光，即开始扫描或扫掠快门狭缝。 在快门操作之前可能会发出闪光灯，以确定相机光圈孔径。
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公开(公告)号：US20060255993A1
公开(公告)日：2006-11-16
申请号：US11432225
申请日：2006-05-11
申请人： Akira Miki , Masayoshi Sahara
发明人： Akira Miki , Masayoshi Sahara
IPC分类号： H03M3/00
CPC分类号： H04R3/12 , H04R2205/024 , H04R2430/20 , H04S3/00
摘要： A sound reproducing apparatus which can be relatively inexpensive as a whole and also be simple in construction with reduced wiring even in the case where many speakers are used. Pulse-width modulated (PWM) pulses are generated based on respective audio signals for multiple-channel speakers. PWM pulses are time-division multiplexed and amplified, and then output as digital driving signals. The multiple-channel speakers are selectively turned on/off such that the digital driving signals are supplied to the respective multiple-channel speakers of corresponding channels.
摘要翻译： 即使在使用许多扬声器的情况下，声音再现装置整体上可以相对便宜，并且结构简单，接线减少。 基于用于多声道扬声器的相应音频信号产生脉冲宽度调制（PWM）脉冲。 PWM脉冲被时分复用和放大，然后作为数字驱动信号输出。 选择性地打开/关闭多声道扬声器，使得数字驱动信号被提供给相应通道的相应多声道扬声器。
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公开(公告)号：US5036350A
公开(公告)日：1991-07-30
申请号：US539439
申请日：1990-06-18
申请人： Nobuyuki Taniguchi , Masatake Niwa , Akira Fujii , Takeo Hoda , Masaaki Nakai , Minoru Sekida , Masayoshi Sahara
发明人： Nobuyuki Taniguchi , Masatake Niwa , Akira Fujii , Takeo Hoda , Masaaki Nakai , Minoru Sekida , Masayoshi Sahara
CPC分类号： G03B7/097 , G03B7/24 , G03B7/26 , G03B2217/18 , Y10T307/625
摘要： A camera has an automatic data reading arrangement for reading ISO data provided on a film cartridge. When a main battery is exchanged with an old battery while the film is still loaded in the camera, ISO data is maintained in a memory supported and powered by a back-up battery. If such an ISO data is not available after the exchange of the main battery, ISO data again read from the loaded film cartride is employed. If the film is not the type that can provide an ISO data, the most widely used ISO data will be automatically set for the further exposure calculation.
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8.发明授权Camera system operable by carrying data from a camera accessory to a camera body 失效相机系统可通过将照相机附件中的数据携带到相机机身来操作
公开(公告)号：US4673275A
公开(公告)日：1987-06-16
申请号：US790511
申请日：1985-10-23
摘要： A camera system operable with data carried from a camera accessory to a camera body. The camera accessory has a ROM for storing various data at a plurality of addresses, respectively, each of which data consists of a plurality of bits, and a coupling terminal for receiving a train of clock pulses from the camera body. A circuit is also provided for squentially designating the address of the ROM one by one to permit the ROM to output data stored at the designated address. In the circuit, an address signal is formed in response to the clock pulses, received through the coupling terminal, for designating an address. The data derived from the ROM are transmitted to the camera body.
摘要翻译： 一种照相机系统，可操作与从相机附件携带到相机机身的数据。 相机配件具有ROM，用于分别存储多个地址中的各种数据，每个数据由多个位组成，以及用于从相机机身接收一串时钟脉冲的耦合端子。 还提供了用于逐个地指定ROM的地址以允许ROM输出存储在指定地址处的数据的电路。 在电路中，响应于通过耦合端子接收的时钟脉冲形成地址信号，用于指定地址。 从ROM导出的数据被发送到相机主体。
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公开(公告)号：US4381889A
公开(公告)日：1983-05-03
申请号：US351957
申请日：1982-02-24
申请人： Masayoshi Sahara , Masaaki Nakai
发明人： Masayoshi Sahara , Masaaki Nakai
CPC分类号： G03B7/085
摘要： An electromechanical device such as a camera diaphragm control device includes a compensation means which compensates for a time lag from generation of a stop signal to actual stoppage of a movable member such as a diaphragm or a diaphragm drive member. The amount of compensation is varied in accordance with determination of the amount of the movement of the movable member from an initial end position to a position where the movable member is to be stopped. In the case of automatic diaphragm control, the amount to be determined may be the steps from the full open position to a position corresponding to a diaphragm aperture to be determined.
摘要翻译： 诸如照相机光圈控制装置的机电装置包括补偿装置，其补偿从停止信号的产生到实际停止诸如隔膜或隔膜驱动构件的可动构件的时滞。 补偿量根据可移动部件从初始终端位置到可移动部件停止的位置的移动量的确定而变化。 在自动光圈控制的情况下，要确定的量可以是从完全打开位置到对应于要确定的光阑孔径的位置的步骤。
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公开(公告)号：US4367933A
公开(公告)日：1983-01-11
申请号：US211906
申请日：1980-12-01
申请人： Masayoshi Sahara
发明人： Masayoshi Sahara
CPC分类号： G03B17/18 , G03B2217/005
摘要： An audible indication system indicates, by sound, information relating to camera operation and/or exposure condition such as information that a self-timer is in operation, that the camera is operated by a remote control signal, that the brightness of an object to be photographed is in a blur-occurring range or so high as to require non-available shutter speed, or that an electronic flash is ready for firing. A control means is provided for controlling the volume of the sound in accordance with the information to be indicated such that the information to be recognized remotely from the indicator, such as the information of self-timer operation and remotely controlled camera operation, is indicated with sound of a loud volume, while the information to be recognized in the proximity of the indicator, such as warning of out-of-range object brightness and the ready condition of an electronic flash device, is indicated with sound of relatively low volume. Additionally, the frequency of the sound for the indication may be changed depending on the information to be discriminated.
摘要翻译： 声音指示系统通过声音指示与摄像机操作有关的信息和/或例如自拍定时器正在操作的信息的曝光条件，照相机由遥控信号操作，对象的亮度为 拍摄的模糊发生范围或者高到要求不可用的快门速度，或者电子闪光灯准备好进行拍摄。 提供一种控制装置，用于根据要指示的信息来控制声音的音量，使得从指示器远程识别的信息（诸如自拍操作的信息和遥控的相机操作）被用 声音大的音量，而在指示器附近识别的信息（例如超出范围对象亮度的警告和电子闪光装置的就绪状态）以相对低的音量的声音指示。 此外，用于指示的声音的频率可以根据要被识别的信息而改变。
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