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1. 发明授权

US4956726A Information signal reproducing apparatus in which control signal condition and information signal level are varied so as to correspond 失效
标题翻译：信息信号再现装置，其中控制信号条件和信息信号电平被改变以对应
公开(公告)号：US4956726A
公开(公告)日：1990-09-11
申请号：US279318
申请日：1988-12-01
申请人： Hiroyuki Takimoto , Yutaka Kohtani , Yoshiyuki Saitoh
发明人： Hiroyuki Takimoto , Yutaka Kohtani , Yoshiyuki Saitoh
IPC分类号： G11B20/00 , G11B20/10 , G11B27/024 , G11B27/36 , H04N5/91 , H04N9/79 , H04N9/793
CPC分类号： H04N9/79 , G11B20/10009 , G11B27/024 , G11B27/36 , H04N9/793
摘要： The disclosure recording and reproducing apparatus is arranged to have a control signal recorded in a predetermined track on a recording medium and is arranged to control the reproduced level of an audio or video signal by reproducing the control signal.
摘要翻译：公开的记录和再现装置被布置为具有记录在记录介质上的预定轨道中的控制信号，并且被布置成通过再现控制信号来控制音频或视频信号的再现电平。

2. 再颁专利

USRE29776E Exposure control device 失效
标题翻译：曝光控制装置
公开(公告)号：USRE29776E
公开(公告)日：1978-09-19
申请号：US590690
申请日：1975-06-26
申请人： Yutaka Kohtani
发明人： Yutaka Kohtani
IPC分类号： G03B7/093
CPC分类号： G03B7/093
摘要： In the exposure control apparatus disclosed, a photo-electric element converts light to which it is exposed to an electrical quantity. A pulse entry circuit responds to the photo-electric element and enters a sequence of sets of pulses into a memory. Each set of pulses corresponds in number to the electric quantity and erases the previous set. A timing clock responds to a signal from a shutter opening member and keeps reading out the content of the memory until the memory is empty at which time the circuit, in conjunction with the memory, produces a shutter closing signal.

3. 发明授权

US5608457A Video camera apparatus 失效
标题翻译：摄像机
公开(公告)号：US5608457A
公开(公告)日：1997-03-04
申请号：US535375
申请日：1995-09-28
申请人： Masamichi Tohyama , Yutaka Kohtani
发明人： Masamichi Tohyama , Yutaka Kohtani
IPC分类号： H04N5/232 , H04N5/225
CPC分类号： H04N5/23209
摘要： A video camera apparatus comprises a camera unit, a lens unit detachable from the camera unit and a communication circuit for communicating control information between a computer of the camera unit and a computer of the lens unit, wherein at least one of the camera unit and the lens unit comprises a memory for storing information indicating a version of the control information by which both of the camera unit and the lens unit can communicate with each other for control, and the information representing the version can be transmitted by the memory to the other unit to vary or select the control command or contents of the control command.
摘要翻译：摄像机装置包括摄像机单元，可从照相机单元拆卸的透镜单元和用于在相机单元的计算机和透镜单元的计算机之间传送控制信息的通信电路，其中，相机单元和透镜单元包括存储器，用于存储指示相机单元和透镜单元两者可以彼此通信以控制的控制信息的版本的信息，并且表示版本的信息可以由存储器发送到另一单元改变或选择控制命令或控制命令的内容。

4. 发明授权

US4396955A Muting device 失效
标题翻译：静音设备
公开(公告)号：US4396955A
公开(公告)日：1983-08-02
申请号：US275360
申请日：1981-06-19
申请人： Yutaka Kohtani , Tadao Udagawa
发明人： Yutaka Kohtani , Tadao Udagawa
IPC分类号： G03B31/00 , G11B5/02 , G11B20/02 , H03G3/34 , G11B15/04 , G11B15/12
CPC分类号： H03G3/348 , G11B20/02 , G11B5/02
摘要： In a recording apparatus for performing magnetic recording onto different parts of a magnetic recording medium as it runs in sequence, a switching element is connected in series in a signal path to a magnetic head which is connected to the output of the signal amplifier and to a bias oscillator. Accordingly, the signal current flowing to the magnetic head can be interrupted. A delay circuit is provided for controlling the operation of the switching element so as to defer initiation of the signal current flow to the magnetic head. This is done pending attainment of the speed of movement of the magnetic recording medium to a substantially constant level after the magnetic recording starts. Connected in parallel to the switching element is a by-pass circuit of which the impedance is relatively low at a frequency equal to that of the bias supplied to the magnetic head. A stabilized muting effect from the low to the high sound region thus can be produced.
摘要翻译：在依次运行磁记录介质的不同部分进行磁记录的记录装置中，开关元件串联连接到连接到信号放大器的输出端的磁头的信号路径中，偏置振荡器。因此，可以中断流向磁头的信号电流。提供延迟电路用于控制开关元件的操作，以推迟信号电流流向磁头的开始。在磁记录开始之后，磁记录介质的移动速度达到基本恒定的水平。与开关元件并联连接的是旁通电路，其阻抗相对于提供给磁头的偏压的频率相对较低。因此可以产生从低声部到高声部的稳定的静音效果。

5. 发明授权

US4274718A Sound motion picture camera 失效
标题翻译：声音电影摄影机
公开(公告)号：US4274718A
公开(公告)日：1981-06-23
申请号：US89453
申请日：1979-10-30
申请人： Yutaka Kohtani , Yoshio Komine
发明人： Yutaka Kohtani , Yoshio Komine
IPC分类号： G03B19/18 , G03B31/02
CPC分类号： G03B31/02 , G03B19/18
摘要： In a sound motion picture camera which permits both sound filming and silent filming by selective use of a sound film cartridge and a silent film cartridge, utilization is made of only signals from loop detecting means for detecting variations in the length of a loop of sound film formed between the exposure station and the sound recording station of the camera during the use of the sound film cartridge, whereby during the use of the silent film cartridge, the film transport speed of a first film transport means for effecting film transport at the exposure station is automatically set to a first speed suited for use of the silent film cartridge and during the use of the sound film cartridge, the film transport speed of the first film transport means is changed over between a second speed higher than the film transport speed of a second film transport means for effecting film transport at the sound recording station and a third speed lower than the film transport speed of the second film transport means in accordance with a decrease and an increase in the film loop length so that the film loop may be maintained at a predetermined length.
摘要翻译：在通过选择性地使用声膜和静音胶片盒的同时可以进行成像和静音拍摄的声像摄像机中，仅利用来自环路检测装置的信号，以检测声膜循环长度的变化在使用该暗盒期间形成在曝光站与相机的录音站之间，由此在使用无声暗盒期间，在曝光站处进行胶片传送的第一胶片传送装置的胶片传送速度被自动设定为适合使用无声胶片暗盒的第一速度，并且在使用该暗盒期间，第一胶片传送装置的胶片传送速度在高于胶片盒的胶片传送速度的第二速度之间切换用于在录音台进行胶片传送的第二胶片传送装置，并且低于第二胶片的胶片传送速度的第三速度 m输送装置根据胶片环长度的减小和增加，使得胶片回路可以保持在预定长度。

6. 发明授权

US4591919A Automatic focus control system and camera using same 失效
标题翻译：自动对焦系统和相机使用相同
公开(公告)号：US4591919A
公开(公告)日：1986-05-27
申请号：US536369
申请日：1983-09-27
申请人： Naoya Kaneda , Masamichi Toyama , Susumu Kozuki , Yutaka Kohtani , Akihiro Fujiwara
发明人： Naoya Kaneda , Masamichi Toyama , Susumu Kozuki , Yutaka Kohtani , Akihiro Fujiwara
IPC分类号： G03B13/36 , G02B7/28 , G02B7/32 , H04N5/232 , G01J1/20 , G01J1/36 , G03B13/18
CPC分类号： H04N5/23212
摘要： Disclosed is an automatic focus control system including an active type automatic focusing device. The system further includes detecting apparatus which produces a characteristic signal when detecting that an image forming optical apparatus is in an out-of-focus condition, and control means which renders the automatic focusing device in an inoperative condition when the optical apparatus reaches an in-focus condition. It also renders the focusing device in an operative condition in response to the characteristic signal produced by the detecting apparatus.
摘要翻译：公开了一种包括主动型自动对焦装置的自动聚焦控制系统。该系统还包括当检测到图像形成光学装置处于离焦状态时产生特征信号的检测装置，以及当光学装置达到内部状态时使自动聚焦装置处于不工作状态的控制装置，聚焦条件。它还使聚焦装置响应于由检测装置产生的特征信号而处于操作状态。

7. 发明授权

US4311369A Sound motion picture camera 失效
标题翻译：声音电影摄影机
公开(公告)号：US4311369A
公开(公告)日：1982-01-19
申请号：US71587
申请日：1979-08-31
申请人： Yutaka Kohtani
发明人： Yutaka Kohtani
IPC分类号： H03G3/00 , H03G3/20 , H03G11/08 , G03B21/36
CPC分类号： H03G3/3005 , H03G11/08 , H03G3/00
摘要： In the disclosed sound motion picture camera, a sound overlap device keeps the sound level constant during a predetermined time after the start of a fade out operation, then gradually lowers the sound level and then gradually raises the sound level during the start of a fade in operation.
摘要翻译：在所公开的声音电影摄像机中，声音重叠装置在淡出操作开始之后的预定时间期间保持声音电平恒定，然后逐渐降低声音水平，然后在淡入淡出开始期间逐渐提高声音电平操作。

8. 发明授权

US4208108A Sound motion picture projector 失效
标题翻译：声音电影投影机
公开(公告)号：US4208108A
公开(公告)日：1980-06-17
申请号：US858799
申请日：1977-12-08
申请人： Takashi Amikura , Yutaka Kohtani , Kiyoshi Takahashi
发明人： Takashi Amikura , Yutaka Kohtani , Kiyoshi Takahashi
IPC分类号： G03B31/00 , G03B31/02
CPC分类号： G03B31/02
摘要： In the disclosed motion picture projector the original sound recorded on the main magnetic stripe along one edge of a film stripe also having a magnetic balance stripe along the other edge of the same film surface, is reproduced by a recording-reproducing head. A second recording-reproducing head records the signal on the balance stripe. While the original sound signal is being heard, the first recording-reproducing head overlaps a second sound signal on the main stripe. A part of the original sound signal on the main stripe may be erased and a new signal recorded in its place.
摘要翻译：在所公开的电影投影仪中，通过记录再现头再现沿着相同胶片表面的另一边缘具有磁平衡条纹的胶片条纹的一条边缘上记录在主磁条上的原始声音。第二记录再现头将信号记录在平衡条上。当原始声音信号被听到时，第一记录再现头与主条纹上的第二声音信号重叠。主条纹上的原始声音信号的一部分可能被擦除，并在其位置记录新的信号。

9. 发明授权

US4146312A Sound motion picture camera and sound motion picture system 失效
标题翻译：声音电影摄像机和声音动态影像系统
公开(公告)号：US4146312A
公开(公告)日：1979-03-27
申请号：US859642
申请日：1977-12-12
申请人： Takashi Amikura , Yutaka Kohtani , Kiyoshi Takahashi
发明人： Takashi Amikura , Yutaka Kohtani , Kiyoshi Takahashi
IPC分类号： G03B31/00 , G03B31/02 , G11B27/029
CPC分类号： G11B27/029 , G03B31/02
摘要： A sound motion picture camera, capable of using a film strip having a main stripe of magnetic recording material along one side edge of one surface and a balance stripe of magnetic recording material along the other edge of the same surface as well as its motion picture. The camera has a recording magnetic head arranged in correspondence with the main stripe and a second recording magnetic head arranged in correspondence with the balance stripe. Thus the same sound signal can be recorded on both the main and the balance stripe through first and second recording magnetic heads. Separate from the camera a sound recording/reproducing device for cooperation with the aforementioned film is provided with a sound recording/reproducing head and an erase magnetic head in a position corresponding to the main stripe and a sound reproducing head in a position corresponding to the balance stripe. A sound signal recorded on the balance stripe is reproduced by the sound reproducing head and heard through a speaker. Another sound signal from a microphone is recorded on the main stripe of the film at a desired position, through the sound recording/reproducing head.
摘要翻译：一种声音电影摄像机，其能够沿着一个表面的一个侧边缘使用具有磁记录材料的主条纹的胶片条以及沿着同一表面的另一边缘的磁记录材料的平衡条以及其运动图像。相机具有与主条对应地布置的记录磁头和与平衡条相对应地布置的第二记录磁头。因此，可以通过第一和第二记录磁头在主平衡条和平衡条上记录相同的声音信号。与相机分离，用于与上述胶片配合的录音/再现装置在对应于该主条纹的位置和对应于该天平的位置的声音再现头部设置有声音记录/再现头和擦除磁头条纹。记录在平衡条上的声音信号由声音再现头再现并通过扬声器听到。来自麦克风的另一个声音信号通过录音/再现头在期望的位置被记录在胶片的主条上。

10. 发明授权

US4134079A Automatic gain control circuit for sound motion picture camera 失效
标题翻译：声音摄像机自动增益控制电路
公开(公告)号：US4134079A
公开(公告)日：1979-01-09
申请号：US820259
申请日：1977-07-29
申请人： Yutaka Kohtani
发明人： Yutaka Kohtani
IPC分类号： G03B31/00 , G03B31/02 , H03G3/20 , H03G3/30
CPC分类号： H03G3/3015 , G03B31/02
摘要： A sound motion picture camera with sound recording equipment rendering it possible to record sound accompaniments by way of a magnetic track on the picture film and provided with an automatic gain control circuit operating with attack and recovery times automatically controlled in accordance with variation of the dynamic range of the sound accompaniment.
摘要翻译：具有声音记录设备的声像摄像机使得能够通过图像胶片上的磁道记录声音伴奏，并且具有自动增益控制电路，该自动增益控制电路根据动态范围的变化自动控制攻击和恢复时间的声音伴奏。

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