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1. 发明授权

US4170026A Circuitry for line recognition of a television signal 失效
标题翻译：电视线路识别电路信号
公开(公告)号：US4170026A
公开(公告)日：1979-10-02
申请号：US906563
申请日：1978-05-16
申请人： Yoshitomi Nagaoka , Tetsuo Tomimoto , Reiichi Sasaki
发明人： Yoshitomi Nagaoka , Tetsuo Tomimoto , Reiichi Sasaki
IPC分类号： H04N5/10 , H04N7/087 , H04N7/02 , H04N5/48 , H04N9/535 , H04N9/62
CPC分类号： H04N7/087 , H04N5/10
摘要： Circuitry for line recognition of a television signal comprises a serration detector which receives the sync pulse and separates the portion of the serration of the vertical sync pulse; a first counter which is coupled to the serration detector and produces output pulse at specific time interval between two successive output pulses of the serration detector; a circuit which is triggered by the output pulse of the first counter and produces a pulse; a second counter which receives said pulse and the horizontal retrace pulse, counts said horizontal retrace pulse when said pulse has a specific level, becomes quiescent when said pulse has another specific level, and then produces the line identification pulse on the desired horizontal line; a first decoder which is connected to said second counter and produces the reset pulse for resetting said first counter after said first counter completes its desired counting action; and a second decorder which produces the reset pulse for resetting said circuit after said second counter produces desired line identification pulse.

2. 发明授权

US4370673A Signal generator for a color television transmitting system 失效
标题翻译：用于彩色电视发射系统的信号发生器
公开(公告)号：US4370673A
公开(公告)日：1983-01-25
申请号：US218012
申请日：1980-12-18
申请人： Tetsuo Tomimoto , Yoshitomi Nagaoka , Reiichi Sasaki , Hiroshi Oyama
发明人： Tetsuo Tomimoto , Yoshitomi Nagaoka , Reiichi Sasaki , Hiroshi Oyama
IPC分类号： H04N11/06 , H04N9/64 , H04N11/24 , H04N9/535
CPC分类号： H04N9/641
摘要： A signal generator for a color television transmitting system improves the picture quality when color encoded signals are reproduced in the picture displayed by a conventional color television receiver. The system utilizes a primary color level detector, a color-difference level detector, and a luminance signal producer which outputs a luminance signal in response to the difference between the primary color level signal output from the primary color level detector and a color-difference level signal output from the color-difference level detector. The output luminance signal is then utilized in the transmission of a color television signal so that a conventional color television receiver may display a color picture having an improved quality.
摘要翻译：彩色电视发射系统的信号发生器在常规彩色电视接收机显示的图像中再现彩色编码信号时，提高了图像质量。该系统利用原色电平检测器，色差电平检测器和亮度信号生成器，其响应于从原色电平检测器输出的原色电平信号和色差电平之间的差异而输出亮度信号来自色差电平检测器的信号输出。然后，输出亮度信号用于彩色电视信号的传输，使得常规的彩色电视接收机可以显示具有改善的质量的彩色图像。

3. 发明授权

US4167750A Color-difference signal modifying apparatus 失效
标题翻译：色差信号修正装置
公开(公告)号：US4167750A
公开(公告)日：1979-09-11
申请号：US836904
申请日：1977-09-26
申请人： Tetsuo Tomimoto , Yoshitomi Nagaoka , Reiichi Sasaki
发明人： Tetsuo Tomimoto , Yoshitomi Nagaoka , Reiichi Sasaki
IPC分类号： H04N9/77 , H04N9/535
CPC分类号： H04N9/77
摘要： A color-difference signal modifying apparatus for modifying a color-difference signal in a color television receiver. The apparatus gives to a color-difference signal a non-linear characteristic which approximates a theoretical characteristic for completely eliminating both luminance and chromaticity errors of a reproduced color. The apparatus is constituted by a threshold signal producing means which is supplied with a luminance signal to produce a threshold signal proportional to the luminance signal, and a gain reduction means which is supplied with the color-difference signal to decrease the gain to remove a specific portion of the color-difference signal which exceeds the threshold signal level.
摘要翻译：一种用于修改彩色电视接收机中的色差信号的色差信号修改装置。该装置给出了色差信号的非线性特征，其近似于完全消除再现颜色的亮度和色度误差的理论特性。该装置由阈值信号产生装置构成，该阈值信号产生装置被提供有亮度信号以产生与亮度信号成比例的阈值信号;以及增益减小装置，其被提供有色差信号以减小增益以去除特定色差信号的部分超过阈值信号电平。

4. 发明授权

US4261009A VIR Control of hue and saturation in RGB demodulator 失效
标题翻译： VIR控制RGB解调器中的色相和饱和度
公开(公告)号：US4261009A
公开(公告)日：1981-04-07
申请号：US907033
申请日：1978-05-17
申请人： Tetsuo Tomimoto , Yoshitomi Nagaoka , Reiichi Sasaki
发明人： Tetsuo Tomimoto , Yoshitomi Nagaoka , Reiichi Sasaki
IPC分类号： H04N9/64 , H04N9/68 , H04N9/535 , H04N9/52
CPC分类号： H04N9/68 , H04N9/643
摘要： A chrominance signal controlling apparatus for controlling the chrominance signal in a color television receiver employing a primary color signal demodulator providing red, green and blue primary color signals and not providing color difference signals comprises a luminance signal producing circuit for producing a luminance signal by mixing the three primary color signals, a subtracting circuit for producing a difference signal between one of the primary color signals and the luminance signal, and a comparing circuit for producing a control signal for controlling the chrominance signal level and/or phase by keeping the difference signal equal to a reference level.
摘要翻译：一种色度信号控制装置，用于在使用提供红色，绿色和蓝色原色信号并且不提供色差信号的原色信号解调器的彩色电视接收机中控制色度信号包括：亮度信号产生电路，用于通过将三原色信号，用于产生原色信号和亮度信号之一之间的差分信号的减法电路，以及用于产生用于通过保持差信号相等来控制色度信号电平和/或相位的控制信号的比较电路参考水平。

5. 发明授权

US4127868A Circuitry for nonlinear processing of reference white on color image 失效
标题翻译：参考白色彩色图像非线性处理电路
公开(公告)号：US4127868A
公开(公告)日：1978-11-28
申请号：US762188
申请日：1977-01-24
申请人： Yoshitomi Nagaoka , Tetsuo Tomimoto , Reiichi Sasaki
发明人： Yoshitomi Nagaoka , Tetsuo Tomimoto , Reiichi Sasaki
IPC分类号： H04N9/73 , H04N9/535
CPC分类号： H04N9/73
摘要： A picture quality improving apparatus for a color television receiver in which red, green and blue system nonlinearities n.sub.R, n.sub.G and n.sub.B are similar to each other. The picture quality is improved by so adjusting the values of the three cathode resistances connected to the three cathodes of the picture tube to satisfy the relation n.sub.B >n.sub.G .gtoreq.n.sub.R.
摘要翻译：一种彩色电视接收机的图像质量改进装置，其中红色，绿色和蓝色系统非线性nR，nG和nB彼此相似。通过调整连接到显象管的三个阴极的三个阴极电阻的值来满足nB> nG> / = nR的关系，改善了图像质量。

6. 发明授权

US4306247A Color signal controlling apparatus 失效
标题翻译：彩色信号控制装置
公开(公告)号：US4306247A
公开(公告)日：1981-12-15
申请号：US3773
申请日：1979-01-15
申请人： Tetsuo Tomimoto , Yoshitomi Nagaoka
发明人： Tetsuo Tomimoto , Yoshitomi Nagaoka
IPC分类号： H04N9/64 , H04N9/68 , H04N9/535
CPC分类号： H04N9/64
摘要： A color signal controlling apparatus for controlling a color signal in a color television receiver. The apparatus has a color signal modifier for modifying a color signal; and a color signal stabilizer supplied with a color signal from the color signal modifier for detecting a color reference signal in a vertical blanking period and for stabilizing the color signal with reference to the color reference signal. The apparatus further has a switching circuit for supplying a switching signal in the vertical blanking period to the color signal modifier. The switching signal prohibits the color signal modifier from modifying the color reference signal to keep the desired operation of the color signal stabilizer.
摘要翻译：一种彩色信号控制装置，用于控制彩色电视接收机中的彩色信号。该装置具有用于修改颜色信号的颜色信号调节器; 以及颜色信号稳定器，其提供有来自颜色信号调节器的颜色信号，用于在垂直消隐期间检测颜色参考信号，并且参照颜色参考信号来稳定色彩信号。该装置还具有用于将垂直消隐期间的切换信号提供给彩色信号调节器的切换电路。切换信号禁止颜色信号调节器修改颜色参考信号以保持颜色信号稳定器的期望操作。

7. 发明授权

US4811119A Apparatus for high-density minimal crosstalk recording and reproducing of terminance and chrominance signals using a magnetic tape 失效
标题翻译：用于使用磁带记录和再现终端和色度信号的高密度最小串扰的装置
公开(公告)号：US4811119A
公开(公告)日：1989-03-07
申请号：US890347
申请日：1986-07-30
申请人： Masaaki Kobayashi , Akihiro Takeuchi , Kazuhiro Yamanishi , Sukeichi Miki , Yoshitomi Nagaoka
发明人： Masaaki Kobayashi , Akihiro Takeuchi , Kazuhiro Yamanishi , Sukeichi Miki , Yoshitomi Nagaoka
IPC分类号： H04N9/81 , H04N9/825 , H04N5/782 , H04N9/79
CPC分类号： H04N9/81 , H04N9/825
摘要： A magnetic tape recording/reproducing apparatus for recording video signals on a magnetic tape without providing a guard band between each two adjacent signal tracks. The apparatus comprises a first switching circuit for exchanging 2-channel component signals every nH period to obtain two combined signals each composed of the 2-channel signals which alternate every nH period, two modulators for modulating the two combined signals, a head section having two pairs of rotarty magnetic heads for recording the modulated signals on the magnetic tape so that each two adjacent blocks contain a same channel component signal and for reproducing the recorded signals from the magnetic tape, two demodulators for demodulating the reproduced signals, and a second switching circuit for exchanging the demodulated signals every nH to obtain the 2-channel component signals. With this arrangement, the recording density is remarkably increased and the cross talk interference hardly occur.
摘要翻译：一种用于在磁带上记录视频信号而不在每个两个相邻信号轨道之间提供保护带的磁带记录/再现装置。该装置包括用于每nH个周期交换2信道分量信号的第一切换电路，以获得两个组合信号，每个组合信号由每nH周期交替的2信道信号组成，两个用于调制两个组合信号的调制器，用于将调制信号记录在磁带上的两对旋转磁头，使得每两个相邻的块包含相同的信道分量信号，并且用于从磁带再现记录的信号，用于解调再生信号的两个解调器和第二切换电路用于每nH交换解调信号以获得2信道分量信号。利用这种布置，记录密度显着增加，并且几乎不发生串扰干扰。

8. 发明授权

US4621292A Automatic focusing device for a video camera 失效
标题翻译：摄像机自动对焦装置
公开(公告)号：US4621292A
公开(公告)日：1986-11-04
申请号：US661326
申请日：1984-10-16
申请人： Yoshiaki Hirao , Ryuichiro Kuga , Yoshitomi Nagaoka
发明人： Yoshiaki Hirao , Ryuichiro Kuga , Yoshitomi Nagaoka
IPC分类号： G01S17/46 , G02B7/32 , H04N5/232 , G01J1/20
CPC分类号： G01S17/48 , G02B7/32 , G03B21/53 , H04N5/23212
摘要： An automatic focusing device for a video camera includes a projector for projecting an infrared ray used for measuring distances and a converging lens for focusing reflected infrared ray light from an object whose distance is to be measured. A light spot detector and a computer are provided for determining whether the video camera is in focus. A lens encoder is utilized to determine the position of a focusing lens and a lens driving unit moves the position of a photographic lens used for photographing the object forwardly or backwardly in dependence upon outputs from the lens encoder and computer so as to automatically focus the video camera in response to the infrared rays reflected from the object to be photographed.
摘要翻译：用于摄像机的自动聚焦装置包括投影用于测量距离的红外线的投影仪和用于聚焦来自待测距离的物体的反射红外线光的会聚透镜。提供光点检测器和计算机用于确定摄像机是否处于焦点。利用透镜编码器来确定聚焦透镜的位置，并且透镜驱动单元根据来自透镜编码器和计算机的输出将用于拍摄物体的摄影镜头的位置向前或向后移动，以便自动对焦视频照相机响应于要拍摄的物体反射的红外线。

9. 发明授权

US4548480A Projection lens apparatus 失效
标题翻译：投影镜头装置
公开(公告)号：US4548480A
公开(公告)日：1985-10-22
申请号：US459242
申请日：1983-01-19
申请人： Yoshiharu Yamamoto , Yasuo Nakajima , Yoshitomi Nagaoka
发明人： Yoshiharu Yamamoto , Yasuo Nakajima , Yoshitomi Nagaoka
IPC分类号： G02B9/12 , G02B13/16 , G02B13/18 , G02B3/04
CPC分类号： G02B13/16
摘要： A projection lens apparatus for projecting an image from a CRT onto a remote screen. The lens apparatus is basically a Petzval type for a large aperture ratio and comprises three lenses. The first lens is a plastic lens having at least one aspherical surface and the third lens has a bi-aspherical surface. To reduce the thermal drift of the focal position, the second lens is a glass lens, having relatively largely positive optical power.
摘要翻译：一种用于将来自CRT的图像投影到远程屏幕上的投影透镜装置。透镜装置基本上是用于大孔径比的Petzval型，并且包括三个透镜。第一透镜是具有至少一个非球面的塑料透镜，第三透镜具有双非球面。为了减少焦点位置的热漂移，第二透镜是玻璃透镜，具有较大的正光学功率。

10. 发明授权

US4453178A Projection television apparatus 失效
标题翻译：投影电视机
公开(公告)号：US4453178A
公开(公告)日：1984-06-05
申请号：US331471
申请日：1981-12-16
申请人： Yoshito Miyatake , Yoshitomi Nagaoka , Yasuo Nakajima
发明人： Yoshito Miyatake , Yoshitomi Nagaoka , Yasuo Nakajima
IPC分类号： G02B9/60 , G02B13/16 , G02B27/18 , H04N9/31
CPC分类号： G02B9/60 , H04N9/31
摘要： A projection television apparatus having a retrofocus type projection lens system which has a sufficiently long back focus, a small F number and a large distortion. The lens system is constructed with five components and five lenses and comprises a first lens which is a negative meniscus lens that has at its screen side a convex surface, a second lens which is a biconvex lens, a third lens which is a biconcave lens, a fourth lens which is a positive lens, and a fifth lens which is a biconvex lens, and which is defined by the following four conditions, i.e.1.4f
摘要翻译：一种投影电视装置，具有后焦点足够长，F值小，大失真等的后焦点型投影透镜系统。透镜系统由五个部件和五个透镜构成，并且包括：第一透镜，其是在其屏幕侧具有凸面的负弯月形透镜，作为双凸透镜的第二透镜，作为双凹透镜的第三透镜，作为正透镜的第四透镜和作为双凸透镜的第五透镜，其由以下四个条件限定，即：1.4f <| f1 <1.9f（i）0.35f

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