High voltage regulating circuit
    1.
    发明授权
    High voltage regulating circuit 失效
    高压调节电路

    公开(公告)号:US3949270A

    公开(公告)日:1976-04-06

    申请号:US110707

    申请日:1971-01-28

    IPC分类号: H04N3/185 H01J29/70

    CPC分类号: H04N3/1856

    摘要: A high voltage regulating circuit has a cathode-ray tube, horizontal deflection means comprising a horizontal deflection output transistor and a horizontal deflection coil for generating a saw-tooth current therein, high voltage generating means connected with the anode of the cathode-ray tube for supplying a high D.C. voltage to the anode thereof and comprising a high voltage generating output transistor, a flyback transformer and a high voltage rectifier, a voltage source, a variable impedance means connected between the voltage source and the high voltage generating means, and a control signal supply means. The control signal is supplied to the impedance means to control the impedance thereof so as to control the voltage supplied to the high voltage generating means thereby maintaining constant the high D.C. voltage supplied to the anode of the cathode-ray tube.

    摘要翻译: 高电压调节电路具有阴极射线管,水平偏转装置包括水平偏转输出晶体管和用于产生锯齿电流的水平偏转线圈,与阴极射线管的阳极连接的高电压产生装置, 向其阳极提供高直流电压,并且包括高电压产生输出晶体管,回扫变压器和高压整流器,电压源,连接在电压源和高电压产生装置之间的可变阻抗装置,以及控制 信号供给装置。 控制信号被提供给阻抗装置以控制其阻抗,以便控制提供给高电压发生装置的电压,从而保持提供给阴极射线管的阳极的高直流电压恒定。

    Color television receiver employing elastic surface wave filter
    2.
    发明授权
    Color television receiver employing elastic surface wave filter 失效
    彩色电视接收机采用弹性表面波滤波器

    公开(公告)号:US4062044A

    公开(公告)日:1977-12-06

    申请号:US655854

    申请日:1976-02-06

    IPC分类号: H04N5/60 H04N9/78 H04N9/535

    CPC分类号: H04N9/78 H04N5/60

    摘要: A color television receiver in which a first transducer is disposed on a substrate of piezoelectric-material for converting a color television signal including a luminance signal, color-difference signals, a sound signal and a picture carrier into an elastic surface wave. A second, a third, a fourth and a fifth transducer are disposed on the substrate for converting the elastic surface wave propagating from the first transducer into electrical signals respectively including solely the luminance signal component, color-difference signal component, sound signal component and picture carrier component of the color television signal. The electrical signal including solely the luminance signal component and the electrical signal including solely the picture carrier component are applied to a first synchronous detector for the synchronous detection of the luminance signal component, and the electrical signal including solely the color-difference signal component and the electrical signal including solely the picture carrier component are applied to a second synchronous detector for the synchronous detection of the color-difference signal component, while the electrical signal including solely the sound signal component and the electrical signal including solely the picture carrier component are applied to a third synchronous detector for the synchronous detection of the sound signal component.

    摘要翻译: 一种彩色电视接收机,其中第一传感器设置在压电材料的基板上,用于将包括亮度信号,色差信号,声音信号和图像载体的彩色电视信号转换为弹性表面波。 第二,第三,第四和第五换能器设置在基板上,用于将从第一换能器传播的弹性表面波转换成分别仅包括亮度信号分量,色差信号分量,声音信号分量和图像的电信号 彩色电视信号的载波分量。 仅包括亮度信号分量和仅包括图像载波分量的电信号的电信号被施加到用于亮度信号分量的同步检测的第一同步检测器,并且仅包括色差信号分量和 仅包括图像载体分量的电信号被施加到用于色差信号分量的同步检测的第二同步检测器,而仅包括声音信号分量的电信号和仅包括图像载体分量的电信号被应用于 用于声音信号分量的同步检测的第三同步检测器。