Horizontal deflection
    1.
    发明授权
    Horizontal deflection 失效
    水平偏转

    公开(公告)号:US5561354A

    公开(公告)日:1996-10-01

    申请号:US504283

    申请日:1995-07-19

    CPC classification number: H04N5/63 H02M3/33523 H02M3/33561

    Abstract: In order to cause scan and/or fly-back voltages (Vsca, Vfly) supplied by a horizontal output stage (1) to vary at a desired rate during a change of state in a horizontal deflection circuit (1, 2, 4), a feedback circuit (4) is provided. This feedback circuit (4) processes the scan and/or fly-back voltages (Vsca, Vfly) to a control voltage (Vco) with which a duty cycle (dc) of a drive signal (Hdr) of a switching element (Tr) in the horizontal output stage (1) is influenced.

    Abstract translation: 为了使水平偏转电路(1,2,4)中的水平输出级(1)提供的扫描和/或反激电压(Vsca,Vfly)以期望的速率变化, 提供反馈电路(4)。 该反馈电路(4)将扫描和/或反激电压(Vsca,Vfly)处理为控制电压(Vco),通过该控制电压,开关元件(Tr)的驱动信号(Hdr)的占空比(dc) 在水平输出级(1)中受到影响。

    Circuit for generating a sawtooth-shaped current
    2.
    发明授权
    Circuit for generating a sawtooth-shaped current 失效
    用于产生锯齿形电流的电路

    公开(公告)号:US4513228A

    公开(公告)日:1985-04-23

    申请号:US365715

    申请日:1982-04-05

    CPC classification number: H04N3/185 H03K4/62

    Abstract: A circuit for generating a sawtooth-shaped current through a coil, a plurality of periodically operated switches being arranged in series, by means of which switches the coil is connected to a trace capacitor during the trace period. During the retrace period, the switches are made non-conductive substantially simultaneously and a supply source produces supply energy for replenishing losses. A retrace capacitor is arranged in parallel with each switch and the supply source is connected in parallel with a number of series-arranged switches which is smaller than the total number of switches. The trace voltage is higher than the voltage of the source.

    Abstract translation: 一种用于通过线圈产生锯齿形电流的电路,多个周期性操作的开关串联布置,通过该电路在线圈期间将线圈连接到跟踪电容器。 在回扫期间,开关基本上同时地不导电,并且供应源产生用于补充损耗的供应能量。 回扫电容器与每个开关并联布置,并且电源与多个串联布置的开关并联连接,该开关小于开关总数。 痕量电压高于电源电压。

    Circuit arrangement for a picture display device for generating a
sawtooth-shaped line deflection current
    3.
    发明授权
    Circuit arrangement for a picture display device for generating a sawtooth-shaped line deflection current 失效
    用于产生锯齿形线偏转电流的图像显示装置的电路装置

    公开(公告)号:US4464612A

    公开(公告)日:1984-08-07

    申请号:US337918

    申请日:1982-01-08

    CPC classification number: H03K4/62 H04N3/185

    Abstract: A circuit arrangement for a picture display device for generating a sawtooth-shaped line deflection current, at least two controllable deflection switches which are switched at line frequency and are arranged in series. As a result thereof the line deflection coil is connected to a trace capacitor during the trace period. During the retrace period the two switches are rendered non-conductive substantially simultaneously and the coil, the trace capacitor and a retrace capacitance form a resonant network the elements of which determine the duration of the retrace period. Supply energy is supplied from a supply voltage source by means of a supply winding which is divided in at least two winding portions which are each connected by means of one end through a supply diode to the resonant network and by means of the other end to a deflection switch and are coupled to the source via a controllable supply switch, which switches at the line frequency. During at least a portion of the trace period the supply switch is in the conducting state while the supply diodes are non-conducting and are non-conducting during the remaining portion of the line period while the supply diodes conduct. The conduction period of the supply switch may be adjustable to adjust the amplitude of the deflection current and also to stabilize this current versus fluctuations of the supply voltage. The said amplitude does not depend on the line frequency.

    Abstract translation: 一种用于产生锯齿形线偏转电流的图像显示装置的电路装置,至少两个以行频切换并串联布置的可控偏转开关。 其结果是,线偏转线圈在跟踪期间连接到迹线电容器。 在回扫期间,两个开关基本上同时被导通,并且线圈,跟踪电容器和回扫电容形成谐振网络,其元件决定回扫周期的持续时间。 供电能量由供电绕组供电,供电绕组分成至少两个绕组部分,每个绕组部分通过一端通过电源二极管连接到谐振网络,另一端连接到 偏转开关,并通过可控电源开关耦合到源极,该开关在线路频率处切换。 在轨迹周期的至少一部分期间,供电开关处于导通状态,而电源二极管不导通,并且在电源二极管导通的剩余部分期间不导通。 供电开关的导通周期可以是可调节的,以调节偏转电流的幅度,并且还使该电流与电源电压的波动相稳定。 所述振幅不依赖于线路频率。

    Cut-off level setting
    4.
    发明授权
    Cut-off level setting 有权
    截止电平设置

    公开(公告)号:US06211629B1

    公开(公告)日:2001-04-03

    申请号:US09517727

    申请日:2000-03-02

    CPC classification number: H04N5/165 H04N5/59

    Abstract: The cut-off level (Vcod) of a drive signal (Vd) of a cathode ray tube (3) is (Ib1, Ib2) occurring at these two levels (Vd1, Vd2).

    Abstract translation: 阴极射线管(3)的驱动信号(Vd)的截止电平(Vcod)在这两个电平(Vd1,Vd2)处是(Ib1,Ib2)。

    Deflection correction
    6.
    发明授权
    Deflection correction 有权
    偏转校正

    公开(公告)号:US06218791B1

    公开(公告)日:2001-04-17

    申请号:US09326508

    申请日:1999-06-04

    CPC classification number: H04N3/233

    Abstract: A deflection circuit includes a deflection correction circuit (Vs) with a controllable active voltage source (Vs) arranged in a loop formed by a deflection coil (Ld), an S-capacitor (Cs), and a flyback capacitor (Cf). The voltage source (Vs) receives a further power supply voltage (Vb2) and a modulating signal (M) to supply a modulating voltage (Vm) varying in response to the modulating signal (M). The active voltage source (Vs) includes a switching element (S2) which is switched on and off with a frequency which is substantially higher than the deflection frequency to to enable waveforms of the modulating voltage (Vm) with a frequency content which is substantially higher than the deflection frequency such that any desired waveform can be generated within the deflection period (Td).

    Abstract translation: 偏转电路包括具有以由偏转线圈(Ld),S电容器(Cs)和回扫电容器(Cf)形成的环路中布置的可控有源电压源(Vs)的偏转校正电路(Vs)。 电压源(Vs)接收另外的电源电压(Vb2)和调制信号(M),以提供响应于调制信号(M)而变化的调制电压(Vm)。 有源电压源(Vs)包括以基本上高于偏转频率的频率接通和断开的开关元件(S2),以使频率含量基本上更高的调制电压(Vm)的波形 偏转频率使得在偏转周期(Td)内可以产生任何期望的波形。

    Switching device for S correction capacitors
    7.
    发明授权
    Switching device for S correction capacitors 失效
    S校正电容器的开关装置

    公开(公告)号:US5703444A

    公开(公告)日:1997-12-30

    申请号:US515555

    申请日:1995-08-16

    CPC classification number: H04N3/233 H04N3/27

    Abstract: A switching device for S correction capacitors includes parallel-arranged branches, each having a series arrangement of an S correction capacitor (Cs) and a switch (S). At one side, the parallel branches are coupled to a horizontal deflection coil (Lh). The switches (S) are controlled by a microcomputer (13) for switching S correction capacitors (Csi) parallel in dependence upon a repetition frequency of horizontal synchronizing pulses (Hs). A hardware frequency detector (11) supplies frequency information (V) related to the horizontal synchronizing pulses (Hs). A frequency change detector (12) coupled to the hardware frequency detector supplies an attention pulse (AP) to an interrupt input (INT) of the microcomputer (13) when a change of the frequency information (V) has been detected.

    Abstract translation: 用于S校正电容器的开关装置包括并联布置的分支,每个分支具有S校正电容器(Cs)和开关(S)的串联布置。 在一侧,平行分支与水平偏转线圈(Lh)耦合。 开关(S)由微型计算机(13)控制,用于根据水平同步脉冲(Hs)的重复频率切换S校正电容器(Csi)并联。 硬件频率检测器(11)提供与水平同步脉冲(Hs)相关的频率信息(V)。 当检测到频率信息(V)的改变时,耦合到硬件频率检测器的频率变化检测器(12)向微型计算机(13)的中断输入(INT)提供注意脉冲(AP)。

    Waveform generation
    8.
    发明授权
    Waveform generation 失效
    波形生成

    公开(公告)号:US5565744A

    公开(公告)日:1996-10-15

    申请号:US548111

    申请日:1995-10-25

    CPC classification number: H04N9/28

    Abstract: A position-dependent waveform (WCi) is generated by generating a set of functions (f.sub.l (I1), . . . ,f.sub.p (I1),g.sub.l (If), . . . ,g.sub.r (If)) from position information (I1,If). A sub-set of functions (f.sub.nl (I1), . . . ,f.sub.nq (I1),g.sub.nl (If), . . . ,g.sub.ns (If))is selected from this set of functions (f.sub.l (I1), . . . ,f.sub.p (I1),g.sub.1 (If), . . . ,g.sub.r (If)). Only selected functions associated with the sub-set of functions (f.sub.nl (I1), . . . ,f.sub.nq (I1),g.sub.nl (If), . . . ,g.sub.ns (If)) are each multiplied by an associated coefficient (al, . . . ,aq,bl, . . . ,bs). The selected functions (f.sub.nl (I1), . . . ,f.sub.nq (I1),g.sub.nl (If), . . . ,g.sub.ns (If)) multiplied by an associated coefficient (al, . . . ,aq,bl, . . . ,bs)are added to form the position-dependent waveform (WCi).

    Abstract translation: 通过从位置信息(I1)产生一组函数(fl(I1),...,fp(I1),gl(If),...,gr(If))来生成位置相关波形(WCi) ,如果)。 从这组函数(fl(I1),...中选择函数的子集(fnl(I1),...,fnq(I1),gnl(If),...,gns(If))。 。,fp(I1),g1(If),...,gr(If))。 只有与函数子集(fnl(I1),...,fnq(I1),gnl(If),...,gns(If))相关联的所选函数分别乘以相关系数(a1, ...,aq,bl,...,bs)。 所选择的函数(fnl(I1),...,fnq(I1),gnl(If),...,gns(If))乘以相关系数(a1,...,aq,bl, 。bs)被添加以形成位置相关波形(WCi)。

    Deflection correction
    10.
    发明授权
    Deflection correction 失效
    偏转校正

    公开(公告)号:US5583400A

    公开(公告)日:1996-12-10

    申请号:US546862

    申请日:1995-10-23

    CPC classification number: H04N3/233

    Abstract: In the market, there is a tendency towards picture tubes with a super flat screen. Due to the flat screen, it is becoming increasingly difficult to meet the even tighter specification on North/South raster distortion (N/S distortion), the tighter specification being caused by a growing importance of text display and high resolution displays. A deflection correction circuit is provided which compensates for a N/S distortion by inducing a correction current (Icv) through a vertical deflection coil (Lv). The correction current (Icv) can be injected in the vertical deflection coil (Lv) via an injection transformer (Ti) coupled in series with the vertical deflection coil (Lv). The injection transformer (Ti) is driven via an output stage (3) by a waveform generator (1,2). The waveform generator (1,2) generates a voltage waveform (M) built up out of substantially straight line sections. The deflection coil (Lv) integrates the voltage waveform (M) into a current waveform (Icv) having substantially parabolic sections. Such an inexpensive and flexible deflection correction circuit can be used to compensate for top/bottom and/or seagull N/S distortion, or for correction of convergence distortions. The deflection correction circuit can be a discrete or an integrated circuit.

    Abstract translation: 在市场上,有一个超级平面屏幕的显像管的趋势。 由于平板显示器,越来越难以满足北/南光栅失真(N / S失真)的更严格的规范,更严格的规格是由文本显示和高分辨率显示器的日益增长的重要性引起的。 提供了一种通过引导通过垂直偏转线圈(Lv)的校正电流(Icv)来补偿N / S失真的偏转校正电路。 校正电流(Icv)可以通过与垂直偏转线圈(Lv)串联耦合的注入变压器(Ti)注入到垂直偏转线圈(Lv)中。 注入变压器(Ti)由波形发生器(1,2)经输出级(3)驱动。 波形发生器(1,2)产生由大致直线部分构成的电压波形(M)。 偏转线圈(Lv)将电压波形(M)积分成具有大致抛物面的电流波形(Icv)。 这种廉价且柔性的偏转校正电路可用于补偿上/下和/或海鸥N / S失真,或用于校正收敛失真。 偏转校正电路可以是分立或集成电路。

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