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21. 发明授权

US4264176A Exposure control device for camera 失效
标题翻译：相机曝光控制装置
公开(公告)号：US4264176A
公开(公告)日：1981-04-28
申请号：US27357
申请日：1979-04-05
申请人： Masaharu Kawamura , Yoshihiro Shigeta , Masanori Uchidoi , Yoji Sugiura , Hiroshi Yamamoto
发明人： Masaharu Kawamura , Yoshihiro Shigeta , Masanori Uchidoi , Yoji Sugiura , Hiroshi Yamamoto
IPC分类号： G03B7/093 , G03B9/08 , G03B15/05 , G03B9/62 , G03B17/38
CPC分类号： G03B7/093
摘要： A device for preventing erroneous operation of a camera is disclosed. The device includes an electromagnet for closing the camera shutter. Current supply apparatus supplies current to the electromagnet. A detection device is employed for detecting whether current from the current supply device has been supplied to the electromagnet. The detection device produces a detection signal when the current is supplied to the electromagnet. A signal generation device has a switch which closes in response to the release operation wherein the signal generation device generates an electrical signal when it receives the detection signal from the detection device. A control device is included for generating a check signal and a release signal. The control device produces the check signal for a predetermined period of time only when it receives the electrical signal from the signal generation device to actuate the detection device. The control device generates the release signal when it receives the detection signal from the detection device. Finally, an electromagnet is included for opening the shutter which is actuated by the release signal from the control device so as to operate only when the current passage to the shutter control electromagnet is detected.
摘要翻译：公开了一种用于防止相机错误操作的装置。该装置包括用于闭合相机快门的电磁体。电流供应装置向电磁铁提供电流。检测装置用于检测来自电流供应装置的电流是否已经被提供给电磁体。当电流被提供给电磁体时，检测装置产生检测信号。信号发生装置具有响应于释放操作而闭合的开关，其中当信号发生装置从检测装置接收到检测信号时产生电信号。包括用于产生检查信号和释放信号的控制装置。只有当控制装置接收到来自信号发生装置的电信号来致动检测装置时，控制装置产生一个预定时间段的检查信号。当控制装置从检测装置接收到检测信号时，产生释放信号。最后，包括用于打开由控制装置的释放信号致动的快门的电磁体，以便仅在检测到快门控制电磁体的当前通道时才起作用。

22. 发明授权

US4027958A System for controlling reproduction of audio tape in synchronism with projection of video film 失效
标题翻译：用于与视频胶片的投影同步控制音频磁带再现的系统
公开(公告)号：US4027958A
公开(公告)日：1977-06-07
申请号：US606643
申请日：1975-08-21
申请人： Yoshihiro Shigeta , Kuniyoshi Suzaki , Mitsutoshi Ogiso
发明人： Yoshihiro Shigeta , Kuniyoshi Suzaki , Mitsutoshi Ogiso
IPC分类号： G03B31/04 , G03B31/00 , G03B23/06
CPC分类号： G03B31/04
摘要： A system is disclosed for retrieving a film having video information recorded thereupon in synchronism with a magnetic tape having audio information recorded thereupon and for synchronizing the sound with the picture after retrieval. Address signals are recorded upon both the film and the tape. The system comprises detectors for address signals recorded upon the film and the tape, a computer including a keyboard for retrieving a desired address, comparators for comparing the outputs of the detectors with the output of the computer, and means for transporting the film and tape in response to the outputs of the comparators. Control signals are recorded upon both the tape and film for synchronizing the sound with the picture. When the control signal recorded upon the film is detected, the still picture is projected and when the control signal recorded on the tape is detected the motion picture is projected.
摘要翻译：公开了一种系统，用于与具有记录在其上的音频信息的磁带同步地检索具有记录在其上的视频信息的电影并且用于在检索之后使声音与图像同步的系统。地址信号都记录在胶片和胶带上。该系统包括用于记录在胶片和磁带上的地址信号的检测器，包括用于检索所需地址的键盘的计算机，用于将检测器的输出与计算机的输出进行比较的比较器，以及用于将胶片和胶带输送到对比较器的输出作出反应。控制信号被记录在磁带和胶片两者上以使声音与图像同步。当检测到记录在胶片上的控制信号时，投影静止图像，并且当检测到记录在磁带上的控制信号时，投影运动图像。

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