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公开(公告)号：US3949418A
公开(公告)日：1976-04-06
申请号：US544278
申请日：1975-01-27
Applicant: Gopal Krishna Srivastava
Inventor： Gopal Krishna Srivastava
Abstract: In a signal receiver utilizing a video signal having a blanking signal with a backporch portion whereat a color burst signal is disposed includes a ramp potential development means responsive to a pulse signal as well as a potential storage, clamping, and slope altering means for effecting alterations in the width of a burst gate potential. In another aspect, a potential storage, clamping, and slope altering means is responsive to the ramp potential development means for effecting clamping of the backporch portion of the blanking signal.
Abstract translation: 在利用具有消隐信号的视频信号的信号接收机中，其中布置有色同步信号的背景部分包括响应于脉冲信号的斜坡电位显影装置以及用于进行改变的潜在的存储，钳位和斜率改变装置 在突发门电位的宽度。 在另一方面，潜在的存储，钳位和斜坡改变装置响应于斜坡电位显影装置，用于实现对消隐信号的后支路部分的钳位。
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公开(公告)号：US3962723A
公开(公告)日：1976-06-08
申请号：US488807
申请日：1974-07-15
Applicant: Gopal Krishna Srivastava
Inventor： Gopal Krishna Srivastava
CPC classification number: H04N9/68
Abstract: In a television receiver having a chrominance signal channel coupled to a cathode ray tube, an automatic peak color control circuit includes an envelope detector means providing a combined chroma envelope and DC potential, a means for shifting the level of the combined chroma envelope and DC potential, a means for detecting the peak level of the chroma signal, and a means for comparing the detected peak chroma signal level and a reference potential level to provide a control signal for maintaining application of a substantially constant level of chroma signal to the cathode ray tube.
Abstract translation: 在具有耦合到阴极射线管的色度信号通道的电视接收机中，自动色彩控制电路包括提供组合色度包络和DC电位的包络检测器装置，用于移动组合色度包络和DC电位的电平的装置 用于检测色度信号的峰值电平的装置，以及用于比较所检测的峰值色度信号电平和参考电位电平的装置，以提供用于维持对阴极射线管施加基本恒定的色度信号电平的控制信号 。
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公开(公告)号：US4021848A
公开(公告)日：1977-05-03
申请号：US573057
申请日：1975-04-30
Applicant: Gopal Krishna Srivastava , Robert Charles Wheeler
Inventor： Gopal Krishna Srivastava , Robert Charles Wheeler
CPC classification number: H04N5/208
Abstract: A signal receiver having a source of video signals includes an aperture correction system wherein an electron device coupled to the video signal source provides first and second oppositely-phased output signals which are applied to a circuit means to be differentiated and delayed respectively and applied to a summing terminal with desired preshoot and overshoot characteristics. Moreover, these characteristics are selectable by an adjustable impedance coupled to the circuit means providing the differentiated and delayed signals.
Abstract translation: 具有视频信号源的信号接收器包括孔径校正系统，其中耦合到视频信号源的电子器件提供第一和第二相反相输出信号，其被施加到电路装置以分别被延迟并被应用于 求和终端具有所需的预冲和过冲特性。 此外，这些特性可通过耦合到提供差分和延迟信号的电路装置的可调阻抗来选择。
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