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公开(公告)号：US5418563A
公开(公告)日：1995-05-23
申请号：US163013
申请日：1993-12-06
CPC分类号： H04N5/372 , H04N5/3597
摘要： An apparatus is provided for processing the output signals of a charge transfer device having at least one row of photoelectric elements. The charge transfer device produces output signals with charge levels that are provided to a shift register having a plurality of elements. The successive charge levels from each photoelectric element are provided to respective shift register elements, and the charge levels are transferred within the shift register to a readout terminal. Some of the charge is retained by each element as the charge is transferred. The retained charge is added to the next charge transferred into the element. This adding of residual charges averages the charges transferred, producing undesirable noise. A sample and hold device removes sampling artifacts inherent in the signal provided by the CCD, to produce a signal representing successive image pixel values. A peaking filter emphasizes high frequency components relative to low frequency components, to compensate for low pass filtering effects which may occur in the CCD.
摘要翻译： 提供一种用于处理具有至少一行光电元件的电荷转移装置的输出信号的装置。 电荷转移装置产生具有提供给具有多个元件的移位寄存器的电荷电平的输出信号。 每个光电元件的连续充电电平被提供给各个移位寄存器元件，并且电荷电平在移位寄存器内传送到读出端。 当电荷转移时，每个元素保留一些电荷。 保留的电荷被添加到转移到元件中的下一个电荷中。 剩余费用的增加平均所转移的费用，产生不良的噪音。 采样和保持装置去除由CCD提供的信号中固有的采样伪像，以产生表示连续图像像素值的信号。 峰值滤波器强调相对于低频分量的高频分量，以补偿CCD中可能发生的低通滤波效应。
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公开(公告)号：US4237491A
公开(公告)日：1980-12-02
申请号：US22616
申请日：1979-03-21
申请人： Charles L. Olson , Joseph F. Hacke
发明人： Charles L. Olson , Joseph F. Hacke
CPC分类号： H04N5/2283
摘要： In a television camera having an electron scanning beam stabilizer circuit, a circuit for improved handling of highlights comprises means for forming an electrical signal corresponding to a pickup tube image highlight, limiting the magnitude of said signal to a predetermined level and utilizing that signal to form a highlight handling signal which causes the increase in beam scanning current necessary to discharge said highlight. In a color camera, the output from one pickup tube can be used to derive the signals necessary to control all three tubes simultaneously. A modified beam stabilizer circuit comprises means for allowing the beam current to increase without reduction by the beam stabilizer in order to discharge the highlight. A complementary signal derived from the highlight handling signal is applied to the modified beam stabilizer simultaneously with the highlight handling signal in order to neutralize the beam stabilizer.
摘要翻译： 在具有电子扫描光束稳定器电路的电视摄像机中，用于改善亮度处理的电路包括用于形成对应于拾取管图像亮点的电信号的装置，将所述信号的幅度限制到预定水平并利用该信号形成 亮度处理信号，其引起放电所述亮点所需的束扫描电流的增加。 在彩色摄像机中，可以使用一个拾取管的输出来导出同时控制所有三个管所需的信号。 修改的光束稳定器电路包括用于允许光束电流增加而不由光束稳定器减小以便放出亮点的装置。 从亮点处理信号得到的互补信号与高亮处理信号同时施加到修改的光束稳定器上，以便中和光束稳定器。
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公开(公告)号：US4461962A
公开(公告)日：1984-07-24
申请号：US342801
申请日：1982-01-26
申请人： Joseph F. Hacke , Arthur J. Banks , Lucas J. Bazin
发明人： Joseph F. Hacke , Arthur J. Banks , Lucas J. Bazin
CPC分类号： H03K3/017 , H03K5/151 , H03K5/1565
摘要： A circuit including emitter-coupled transistors improves the symmetry of an applied square wave. A limiter in the collector circuit limits the paraphase output voltage excursion. Changes in energizing voltage affect the current in the limiter and cause incremental changes in the output duty cycle. A compensator includes a voltage divider coupled between the output terminals for producing a control voltage related to the output signal amplitude. The control voltage controls a current source coupled to joined emitters for creating an offsetting current through the limiter.
摘要翻译： 包括发射极耦合晶体管的电路改善了施加的方波的对称性。 收集器电路中的限幅器限制了后期输出电压偏移。 激励电压的变化影响限制器中的电流，并导致输出占空比的增量变化。 补偿器包括耦合在输出端子之间的分压器，用于产生与输出信号振幅相关的控制电压。 控制电压控制耦合到连接的发射器的电流源，以产生通过限幅器的偏移电流。
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4.发明授权Multiplexed noise suppression signal recovery for multiphase readout of charge device arrays 失效用于多相读出充电器件阵列的多路复用噪声抑制信号恢复
公开(公告)号：US5398060A
公开(公告)日：1995-03-14
申请号：US164623
申请日：1993-12-07
申请人： Thomas J. Leacock , Joseph F. Hacke
发明人： Thomas J. Leacock , Joseph F. Hacke
CPC分类号： H04N5/37213 , G11C27/026 , G11C27/04 , H04N5/357
摘要： A noise suppression, signal recovery circuit for use with an array of charge coupled device having a plurality of phase readouts. The video information present in the multiple phases are combined into a single video output signal by using a minimal number of parts while providing for noise suppression designed to suppress typical noise present in charge coupled device arrays.
摘要翻译： 一种用于具有多个相位读出的电荷耦合器件阵列的噪声抑制信号恢复电路。 存在于多个相位的视频信息通过使用最少数量的部分被组合成单个视频输出信号，同时提供设计用于抑制电荷耦合器件阵列中存在的典型噪声的噪声抑制。
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5.发明授权Dark current measurement and correction for video from field-transfer imagers 失效来自现场传输成像器的视频的暗电流测量和校正
公开(公告)号：US4589025A
公开(公告)日：1986-05-13
申请号：US676815
申请日：1984-11-30
CPC分类号： H04N5/361
摘要： In a television camera including an imager of the field-transfer type having A, B and C registers, an indication signal representative of dark current response accompanying the video signal is generated by comparing first and second signals representative of charge packets derived from the B and C registers, respectively. Specifically, the first signal is generated when the C register supplies signals supplied from the B register which includes substantially no photo-responsive components transferred from the A register. The second signal is generated when the C register supplies signals after the signal supplied from the B register have already been read out and while no new signals from the B register are being transferred into the C register and therefore represents absolute black.
摘要翻译： 在包括具有A，B和C寄存器的场转移型的成像器的电视摄像机中，通过比较表示从B导出的电荷分组的第一和第二信号，生成表示伴随视频信号的暗电流响应的指示信号， C寄存器。 具体地说，当C寄存器提供从B寄存器提供的信号时，产生第一信号，该寄存器基本上不包括从A寄存器传送的光敏元件。 当从B寄存器提供的信号已经被读出并且没有来自B寄存器的新信号被传送到C寄存器中并且因此代表绝对黑色时，C寄存器提供信号时产生第二信号。
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公开(公告)号：US4393395A
公开(公告)日：1983-07-12
申请号：US300226
申请日：1981-09-08
申请人： Joseph F. Hacke , Lucas J. Bazin
发明人： Joseph F. Hacke , Lucas J. Bazin
CPC分类号： H04N11/00
摘要： A balanced modulator or mixer is used for modulating components of a chrominance signal onto a subcarrier to generate double-sideband suppressed-carrier amplitude-modulated signals. The video component is applied to a phase splitter which produces two antiphase baseband video signals, which in turn are applied to modulator switches driven in antiphase at the carrier rate for producing the DSB SC signal at a common output terminal. For reducing residual carrier output resulting from unbalance of the video during black level, a sample-and-hold circuit is coupled to each output of the phase splitter and is gated during black level. A differential amplifier compares the sampled signals and reduces the unbalance in a feedback manner to eliminate residual subcarrier during black level.
摘要翻译： 平衡调制器或混频器用于将色度信号的分量调制到子载波上以产生双边带抑制载波幅度调制信号。 视频分量被应用于产生两个反相基带视频信号的相位分离器，该相位基带视频信号又被加到以载波速率反相驱动的调制器开关，以在公共输出端产生DSB SC信号。 为了减少在黑电平期间视频不平衡导致的残留载波输出，采样保持电路耦合到分相器的每个输出，并在黑电平期间选通。 差分放大器比较采样信号并以反馈方式减少不平衡，以消除黑电平期间的残留副载波。
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