CHROMINANCE CONTROL CIRCUIT FOR COLOR TELEVISION RECEIVERS

    公开(公告)号:KR790000973B1

    公开(公告)日:1979-08-14

    申请号:KR740000078

    申请日:1974-01-01

    Applicant: SONY CORP

    Abstract: A signal control system was comprised of a color CRT with a screen covering an image area and a corresponding plurality of beam producing means for generating a plurality of electron beams, a corresponding plurality of signal supplying circuit means responsive to incoming signals, and control circuit means connected to at least one of the signal supplying circuit means for controlling the level of the corresponding signal to vary the luminosity of the color phosphor.

    Color signal control system for color television receivers
    2.
    发明授权
    Color signal control system for color television receivers 失效
    彩色电视接收机彩色信号控制系统

    公开(公告)号:US3919712A

    公开(公告)日:1975-11-11

    申请号:US44523874

    申请日:1974-02-25

    Applicant: SONY CORP

    CPC classification number: H04N9/73 H04N9/20

    Abstract: A signal control system for controlling the level of color signals to modulate the density of the electron beams in a color cathode ray tube having an array of phosphors that emit light of different colors, and in which at least one of the phosphors has a luminosity saturation characteristic that is different from the others. The system includes means to limit the peak signals applied to control the beam that strikes the phosphor least subject to saturation, the purpose being to prevent that phosphor from being excited beyond the level at which the other phosphors can maintain a balanced degree of luminescence.

    Abstract translation: 一种信号控制系统,用于控制彩色信号的电平以调制具有发射不同颜色的光的荧光体阵列的彩色阴极射线管中的电子束的密度,并且其中至少一种荧光体具有亮度饱和度 特征与其他不同。 该系统包括限制施加的峰值信号以控制最小受限于饱和的磷光体的光束,其目的是防止该荧光体被激发超过其它荧光体可以保持平衡发光度的水平。

    Vertical deflection circuits for electron beam scanning
    3.
    发明授权
    Vertical deflection circuits for electron beam scanning 失效
    用于电子束扫描的垂直偏转电路

    公开(公告)号:US3917977A

    公开(公告)日:1975-11-04

    申请号:US42764973

    申请日:1973-12-26

    Applicant: SONY CORP

    Inventor: IZUMISAWA MASATO

    CPC classification number: H03K4/696

    Abstract: A vertical deflection circuit which has an output stage formed as a single-ended push-pull amplifier connected to a first voltage source through a unidirectional element and also connected through a switch device to a second voltage source supplying a voltage with an absolute value larger than the absolute value of the voltage of the first voltage source. The switch device is controlled to have the conductive state only in the retrace period and the output stage is supplied with the voltage of the first voltage source in the trace period and with the voltage of the second voltage source in the retrace period, whereby the output efficiency of the circuit is increased.

    Abstract translation: 一种垂直偏转电路,其具有形成为单端推挽放大器的输出级,其通过单向元件连接到第一电压源,并且还通过开关器件连接到第二电压源,所述第二电压源提供绝对值大于 第一电压源的电压的绝对值。 开关装置被控制为仅在回扫周期中具有导通状态,并且在回扫周期中在跟踪期间和第二电压源的电压中向输出级提供第一电压源的电压,由此输出 电路效率提高。

    4.
    发明专利
    未知

    公开(公告)号:DE2251936A1

    公开(公告)日:1973-05-03

    申请号:DE2251936

    申请日:1972-10-23

    Applicant: SONY CORP

    Abstract: A degaussing circuit for demagnetizing a color video tube in a portable television receiver in which the degaussing coil current is supplied through a thermistor from the horizontal output circuit of the portable television receiver.

    COLOR SIGNAL CONTROL SYSTEM FOR COLOR TELEVISION RECEIVERS

    公开(公告)号:CA1014262A

    公开(公告)日:1977-07-19

    申请号:CA193545

    申请日:1974-02-26

    Applicant: SONY CORP

    Abstract: A signal control system for controlling the level of color signals to modulate the density of the electron beams in a color cathode ray tube having an array of phosphors that emit light of different colors, and in which at least one of the phosphors has a luminosity saturation characteristic that is different from the others. The system includes means to limit the peak signals applied to control the beam that strikes the phosphor least subject to saturation, the purpose being to prevent that phosphor from being excited beyond the level at which the other phosphors can maintain a balanced degree of luminescence.

    VERTICAL DEFLECTION CIRCUITS FOR ELECTRON BEAM SCANNING

    公开(公告)号:CA1007744A

    公开(公告)日:1977-03-29

    申请号:CA189019

    申请日:1973-12-27

    Applicant: SONY CORP

    Inventor: IZUMISAWA MASATO

    Abstract: A vertical deflection circuit which has an output stage formed as a single-ended push-pull amplifier connected to a first voltage source through a unidirectional element and also connected through a switch device to a second voltage source supplying a voltage with an absolute value larger than the absolute value of the voltage of the first voltage source. The switch device is controlled to have the conductive state only in the retrace period and the output stage is supplied with the voltage of the first voltage source in the trace period and with the voltage of the second voltage source in the retrace period, whereby the output efficiency of the circuit is increased.

    VERTICAL DEFLECTION CIRCUITS
    7.
    发明专利

    公开(公告)号:AU6399473A

    公开(公告)日:1975-07-03

    申请号:AU6399473

    申请日:1973-12-27

    Applicant: SONY CORP

    Inventor: IZUMISAWA MASATO

    Abstract: A vertical deflection circuit which has an output stage formed as a single-ended push-pull amplifier connected to a first voltage source through a unidirectional element and also connected through a switch device to a second voltage source supplying a voltage with an absolute value larger than the absolute value of the voltage of the first voltage source. The switch device is controlled to have the conductive state only in the retrace period and the output stage is supplied with the voltage of the first voltage source in the trace period and with the voltage of the second voltage source in the retrace period, whereby the output efficiency of the circuit is increased.

    SYSTEM FOR BEAM LANDING CORRECTION IN COLOR CATHODE RAY TUBE

    公开(公告)号:CA1038075A

    公开(公告)日:1978-09-05

    申请号:CA221813

    申请日:1975-03-11

    Applicant: SONY CORP

    Abstract: A system for compensating for mislanding of electron beams in a color cathode ray tube, which comprises a coil device provided on the color cathode ray tube in addition to a main deflection coil, a circuit for producing a plurality of currents having different wave forms, respectively, and a connecting device for connecting the coil device to selected one of connection points of the circuit so as to supply one or more of the currents produced in the circuit, which has a desired wave form, to said coil device selectively in response to the direction to which the color cathode ray tube faces, thereby to achieve sufficient compensation for mislanding of electron beams caused by the earth's magnetic field regardless of the directional situation of the cathode ray tube.

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