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公开(公告)号：US4012771A
公开(公告)日：1977-03-15
申请号：US651791
申请日：1976-01-23
申请人： Yoshio Ishigaki , Takao Tsuchiya , Tsutomu Niimura
发明人： Yoshio Ishigaki , Takao Tsuchiya , Tsutomu Niimura
CPC分类号： H04N9/84
摘要： In apparatus for reproducing color video signals recorded in successive parallel tracks on a record medium with the chrominance components of video signals recorded in next adjacent tracks having first and second carriers which differ from each other in respect to their phases or polarity characteristics; and in which a plurality of transducers scan along the tracks one at a time so as to reproduce the video signals recorded in each of said tracks along with cross-talk signals from the tracks next adjacent thereto, means for separating said chrominance signal components from the luminance signal component in the reproduced signals, and a signal processing circuit including a switching circuit and a comb filter provides the separated chrominance components of video signals reproduced from each of said tracks with a common carrier and eliminates therefrom the chrominance components of the cross-talk signals on the basis of said different phases of the first and second carriers with which the chrominance components were recorded in the tracks which are next adjacent to each other: the changing-over of the switching circuit is controlled in response to the phase of the chrominance component carrier that results therefrom so as to ensure phase alignment of the common carrier with which the chrominance components of the video signals reproduced from the successive tracks are provided. Further, control signals are recorded on the record medium to identify those tracks in which video signals are recorded with their chrominance components having said first and second carriers, respectively, and, on reproducing, such identifying control signals are reproduced to control the movements of the transducers and, through such controlled movements, to regulate the changing-over of the switching circuit.
摘要翻译： 用于再现记录在记录介质上的连续平行轨道中的彩色视频信号的装置，其中记录在下一相邻轨道中的视频信号的色度分量具有相对于它们的相位或极性特性彼此不同的第一和第二载波; 并且其中多个换能器一次沿轨道扫描一次，以便再现记录在每个所述轨道中的视频信号以及与其相邻的轨道的串扰信号，用于将所述色度信号分量与 再现信号中的亮度信号分量，以及包括切换电路和梳状滤波器的信号处理电路，使用各公共载波从每个所述磁迹再现的视频信号的分离的色度分量提供，从而消除串扰的色度分量 基于第一和第二载波的所述不同相位的信号，其中色度分量被记录在彼此相邻的轨道中：响应于色度的相位来控制切换电路的转换 由此产生的分量载体，以便确保共同载体的相位对准 提供从连续轨道再现的视频信号的色调分量。 此外，控制信号被记录在记录介质上，以分别识别具有其具有所述第一和第二载波的色度分量记录视频信号的那些轨道，并且在再现时，再现这些识别控制信号以控制 传感器，并通过这种受控的运动来调节开关电路的转换。
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2.发明授权Camera apparatus for forming a plurality of different kinds of pictures corresponding to different television standards and different aspect ratios 失效用于形成对应于不同电视标准和不同宽高比的多种不同类型的图像的相机装置
公开(公告)号：US5436658A
公开(公告)日：1995-07-25
申请号：US291494
申请日：1994-08-17
申请人： Makoto Onga , Tsutomu Niimura
发明人： Makoto Onga , Tsutomu Niimura
CPC分类号： H04N5/23248 , H04N5/23254 , H04N5/23258 , H04N5/23267 , H04N5/335
摘要： In a camera device, the pixel numbers of an imaging device are selected to be greater than the largest number of pixels necessary for the generation of video signals of different aspect ratios and television standards. Output signals of the imaging device are stored in a memory and are then are selectively output. As a result, common use of an imaging device is permitted for camera apparatuses of, for instance, the NTSC, PAL and other standards.
摘要翻译： 在相机装置中，成像装置的像素数被选择为大于生成不同宽高比和电视标准的视频信号所需的最大像素数。 成像装置的输出信号被存储在存储器中，然后被选择性地输出。 结果，对于例如NTSC，PAL和其他标准的相机装置，允许成像装置的共同使用。
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公开(公告)号：US4343018A
公开(公告)日：1982-08-03
申请号：US208193
申请日：1980-11-19
CPC分类号： H04N9/68
摘要： A chrominance signal processing circuit for generating a gain-controlled chrominance signal carrier and a phase-controlled burst signal is provided with a first differential amplifier receiving a chrominance signal carrier and having a first constant current source, a second differential amplifier receiving an output signal of the first differential amplifier, a phase control circuit connected to the output of the second differential amplifier, the second differential amplifier receiving its bias current from a second constant current source during a chroma interval and from a third constant current source during a burst interval, the ratio of the currents of the first and second constant current sources being controlled for controlling the gain of the chrominance signal, and the output of the second differential amplifier being controlled at least during the burst interval, for controlling the phase of the burst signal.
摘要翻译： 用于产生增益控制的色度信号载波和相位控制的突发信号的色度信号处理电路设置有接收色度信号载波并具有第一恒定电流源的第一差分放大器，接收第一恒定电流源的输出信号的第二差分放大器 所述第一差分放大器，连接到所述第二差分放大器的输出的相位控制电路，所述第二差分放大器在色度间隔期间从第二恒定电流源接收其偏置电流，并且在突发间隔期间从所述第三恒定电流源接收所述偏置电流， 控制第一和第二恒定电流源的电流的比率用于控制色度信号的增益，并且至少在突发间隔期间控制第二差分放大器的输出，以控制突发信号的相位。
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公开(公告)号：US08125152B2
公开(公告)日：2012-02-28
申请号：US11490809
申请日：2006-07-21
申请人： Masaru Fujiwara , Tsutomu Niimura , Makoto Natori
发明人： Masaru Fujiwara , Tsutomu Niimura , Makoto Natori
IPC分类号： H01J17/20
CPC分类号： G02F1/133604 , G02F1/133603 , G02F1/133609 , G02F2001/133614
摘要： A liquid crystal display and a light source apparatus capable of improving color reproduction compared to related arts without declining intensity. A light source apparatus includes: a cold cathode fluorescent tube including a B phosphor for blue and a G phosphor for green; and a light emitting diode for red, wherein the G phosphor emits a single-spectrum light with a peak wavelength of 510 to 530 nm, and the light emitting diode emits a single-spectrum light with a peak wavelength of 620 to 650 nm.
摘要翻译： 与相关技术相比，能够在不降低强度的情况下，能够改善色彩再现的液晶显示器和光源装置。 光源装置包括：包括蓝色B荧光体和绿色荧光粉的冷阴极荧光管; 以及用于红色的发光二极管，其中所述G荧光体发射峰值波长为510至530nm的单光谱，并且所述发光二极管发射峰值波长为620至650nm的单光谱。
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5.发明授权Circuit for converting single-ended input signals to a pair of differential output signals 失效用于将单端输入信号转换为一对差分输出信号的电路
公开(公告)号：US4369411A
公开(公告)日：1983-01-18
申请号：US186566
申请日：1980-09-12
CPC分类号： H03G1/0023 , H03F3/30 , H03F3/45071
摘要： A signal converting circuit for converting a single-ended input signal to a pair of differential output signals includes a current source for generating a constant current; an input signal generating circuit for generating an input signal current; a first path including at least one diode connected to the current source and the input signal generating circuit for producing a first differential current as a function of the constant current and the input signal current; a second path including a series combination of a diode and the collector-emitter path of a transistor connected to the current source and the input signal generating circuit for producing a second differential current as a function of the constant current and the input signal current, the transistor being supplied with a current at its input; a differential amplifier output circuit having two transistors connected to the first and second paths for producing differential output signals in response to the first and second differential currents; and a circuit for eliminating the effect on the differential output signals of the current at the input of the transistor, the circuit for eliminating including a transistor having its collector-emitter path connected between the first path and ground and a diode connected between the second path and ground.
摘要翻译： 用于将单端输入信号转换成一对差分输出信号的信号转换电路包括用于产生恒定电流的电流源; 用于产生输入信号电流的输入信号产生电路; 第一路径，包括连接到电流源的至少一个二极管和用于产生作为恒定电流和输入信号电流的函数的第一差分电流的输入信号产生电路; 第二路径包括二极管和连接到电流源的晶体管的集电极 - 发射极路径的串联组合和用于产生作为恒定电流和输入信号电流的函数的第二差分电流的输入信号发生电路， 晶体管在其输入端提供电流; 差分放大器输出电路，具有连接到第一和第二路径的两个晶体管，用于响应于第一和第二差分电流产生差分输出信号; 以及用于消除对在晶体管的输入处的电流的差分输出信号的影响的电路，用于消除的电路包括其集电极 - 发射极路径连接在第一路径和地之间的晶体管和连接在第二路径之间的二极管 和地面。
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公开(公告)号：US4132952A
公开(公告)日：1979-01-02
申请号：US873963
申请日：1978-01-31
申请人： Masayuki Hongu , Tsutomu Niimura , Hiromi Kawakami
发明人： Masayuki Hongu , Tsutomu Niimura , Hiromi Kawakami
摘要： A tuner for receiving signals broadcast on two spaced bands, each divided into several channels, has two fixed bandpass filters, one to pass all of the channels in the lower frequency band and the other to pass all of the channels in the higher frequency band. The tuner includes a mixer to which signals of either band are supplied by selective operation of a double-throw switch. A tunable local oscillator supplies a heterodyning signal to the mixer to convert any selected channel of the received signal to an intermediate frequency (i.f.) band chosen to avoid image interference from undesired channels, whether the local oscillator frequency is above or below the selected channel. To ease the constraints on the choice of the i.f. band, different i.f. filters tuned to first and second i.f. bands may be used for the higher and lower received bands. A second double-throw switch ganged with the first switch can then be used to direct the heterodyned signals to the proper i.f. filter.
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公开(公告)号：US20070018557A1
公开(公告)日：2007-01-25
申请号：US11490809
申请日：2006-07-21
申请人： Masaru Fujiwara , Tsutomu Niimura , Makoto Natori
发明人： Masaru Fujiwara , Tsutomu Niimura , Makoto Natori
CPC分类号： G02F1/133604 , G02F1/133603 , G02F1/133609 , G02F2001/133614
摘要： A liquid crystal display and a light source apparatus capable of improving color reproduction compared to related arts without declining intensity. A light source apparatus includes: a cold cathode fluorescent tube including a B phosphor for blue and a G phosphor for green; and a light emitting diode for red, wherein the G phosphor emits a single-spectrum light with a peak wavelength of 510 to 530 nm, and the light emitting diode emits a single-spectrum light with a peak wavelength of 620 to 650 nm.
摘要翻译： 与相关技术相比，能够在不降低强度的情况下，能够改善色彩再现的液晶显示器和光源装置。 光源装置包括：包括蓝色B荧光体和绿色荧光粉的冷阴极荧光管; 以及用于红色的发光二极管，其中所述G荧光体发射峰值波长为510至530nm的单光谱，并且所述发光二极管发射峰值波长为620至650nm的单光谱。
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公开(公告)号：US5083209A
公开(公告)日：1992-01-21
申请号：US614046
申请日：1990-10-31
申请人： Tatsuo Inoue , Tsutomu Niimura
发明人： Tatsuo Inoue , Tsutomu Niimura
CPC分类号： H04N5/2352
摘要： An automatic exposure control type video camera is designed to cope with the problem of deterioration in the image quality, for an object of higher brightness, by an arrangement in which a diaphragm is actuated when the brightness of the object light is below a predetermined threshold value, and in which the shutter speed is changed when the brightness of the object light is above the predetermined threshold value. More particularly, when the brightness of the object light is below a predetermined value, the shutter speed is set so as to remain constant and rotary diaphragm vanes, for example, are actuated mechanically to control the opening size of the diaphragm to limit the volume of incident light on the image sensing device. Conversely, when the brightness of the object light exceeds a predetermined value and the opening size of the diaphragm vanes reaches a predetermined value, the diaphragm is set so as to remain constant and the shutter is actuated to control the exposure time of the image sensing device to limit the incident light volume.
摘要翻译： 自动曝光控制型摄像机被设计成通过在物体的亮度低于预定阈值的情况下致动隔膜的布置来应对对于较高亮度的物体的图像质量劣化的问题 ，并且当对象光的亮度高于预定阈值时快门速度改变。 更具体地，当目标光的亮度低于预定值时，将快门速度设定为保持恒定，并且例如旋转的膜片叶片机械地致动以控制隔膜的开口尺寸以限制 摄像装置上的入射光。 相反，当物体光的亮度超过预定值并且光圈叶片的开口尺寸达到预定值时，将光阑设定为保持恒定，并且启动快门以控制图像感测装置的曝光时间 以限制入射光体积。
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公开(公告)号：US4589021A
公开(公告)日：1986-05-13
申请号：US568258
申请日：1984-01-04
申请人： Joichi Sato , Ryuji Shiono , Tsutomu Niimura , Toshiaki Isogawa , Mitsuru Sato
发明人： Joichi Sato , Ryuji Shiono , Tsutomu Niimura , Toshiaki Isogawa , Mitsuru Sato
CPC分类号： H04N5/202
摘要： A circuit having a nonlinear response characteristic provides gamma compensation to a video luminance signal and matches any desired output response curve by selecting the number of diodes connected as series-connected circuits in the compensation circuit. The relationship among the various numbers of series-connected diodes is dependent upon having a current flowing into an output circuit which is the same as a current flowing out of a collector circuit of a differential amplifier, to which the input video luminance signal is applied, and through series-connected diode circuit. These currents are maintained equal by use of a current-mirror circuit, which provides an input current to an output transistor that has in its emitter circuit one of the series-connected diode circuits, and the compensated luminance signal flows in the collector circuit thereof. The differential amplifier is stabilized and balanced by a difference amplifier connected in feedback across the collector leads of the differential amplifier in conjunction with a pedestal clamping synchronization signal and a capacitor to provide a balancing signal at the base lead of the second transistor of the differential transistor amplifier.
摘要翻译： 具有非线性响应特性的电路向视频亮度信号提供伽马补偿，并通过选择在补偿电路中串联连接的电路连接的二极管的数量来匹配任何期望的输出响应曲线。 各种数量的串联二极管之间的关系取决于流入输出电路的电流，该输出电路与从应用输入视频亮度信号的差分放大器的集电极电流流出的电流相同， 并通过串联二极管电路。 这些电流通过使用电流镜电路而保持相等，电流镜电路向输出晶体管提供输入电流，输出晶体管在其发射电路中具有串联二极管电路中的一个，并且经补偿的亮度信号在其集电极电路中流动。 差分放大器通过连接在差分放大器的集电极引线上的差分放大器结合基座钳位同步信号和电容器来稳定和平衡，以在差分晶体管的第二晶体管的基极引线提供平衡信号 放大器
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10.发明授权Circuit converting a pair of differential input signals to single-ended output signals 失效将一对差分输入信号电路转换为单端输出信号
公开(公告)号：US4347531A
公开(公告)日：1982-08-31
申请号：US186706
申请日：1980-09-12
CPC分类号： H03G1/0023 , H03F3/3066 , H03F3/347 , H03F3/45071 , H03G3/10
摘要： A signal converting circuit, which has particular application as a pedestal clamp circuit for a video signal, includes a differential amplifier having a pair of transistors which produce first and second differential currents at the respective collectors thereof; a first circuit supplied with the first differential current and including a diode and a first resistor having a first resistance value connected in series between the collector of one of the transistors of the differential amplifier and a reference potential; a second circuit supplied with the second differential current and including a second resistor having a second resistance value and a transistor having its collector emitter path connected in series with the second resistor between the collector of the other transistor of the differential amplifier and the reference potential; and an output circuit for producing an output current in response to the second differential current and including a current mirror transistor having its base-collector path connected in parallel with the collector-emitter path of the transistor of the second circuit, wherein the current gain of the signal converting circuit is controlled by the resistance values of the first and second resistors.
摘要翻译： 具有作为视频信号的基座钳位电路的特殊应用的信号转换电路包括具有一对晶体管的差分放大器，该晶体管在其各自的集电极处产生第一和第二差分电流; 提供有第一差分电流并包括二极管的第一电路和具有串联连接在差分放大器的一个晶体管的集电极与参考电位之间的第一电阻值的第一电阻; 提供有第二差分电流的第二电路，并且包括具有第二电阻值的第二电阻器和晶体管，其晶体管的集电极发射极路径与差分放大器的另一晶体管的集电极与参考电位之间的第二电阻器串联; 以及输出电路，用于响应于第二差分电流产生输出电流，并且包括其基极集电极路径与第二电路的晶体管的集电极 - 发射极路并联连接的电流镜晶体管，其中， 信号转换电路由第一和第二电阻器的电阻值控制。
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