GRID-CORRECTION CIRCUIT FOR TV SETS
    1.
    发明申请
    GRID-CORRECTION CIRCUIT FOR TV SETS 审中-公开
    电视机网格校正电路

    公开(公告)号:WO1991010318A1

    公开(公告)日:1991-07-11

    申请号:PCT/EP1990002307

    申请日:1990-12-24

    CPC classification number: H04N3/22

    Abstract: It is known to supply a test signal periodically to the deflector circuit, to compare the test deflection current (iT) flowing in the deflector circuit with a reference value (Uref) in a comparator (7) and to use the resultant signal (Us2) to change the test deflection current (iT) and the grid deflection current (iA) stepwise. The aim is to prevent the grid deflection current from oscillating about the reference value. The test procedure with the oscillating procedure is carried out only for an imperceptible time during the picture, and the grid deflection current (iA) is corrected only if the test deflection current (iT) deviates from the reference value (Uref) by more than one step. In particular for a projection TV set.

    Abstract translation: 已知向偏转器电路周期性地提供测试信号,以将在偏导器电路中流动的测试偏转电流(iT)与比较器(7)中的参考值(Uref)进行比较,并使用所得到的信号(Us2) 逐步改变测试偏转电流(iT)和电网偏转电流(iA)。 目的是防止电网偏转电流围绕参考值振荡。 具有振荡程序的测试程序仅在图像期间不可察觉的时间进行,并且只有当测试偏转电流(iT)偏离参考值(Uref)多于1个时,才校正电网偏转电流(iA) 步。 特别是对于投影电视机。

    COUPLING PART
    3.
    发明申请
    COUPLING PART 审中-公开
    联系部分

    公开(公告)号:WO1989006057A1

    公开(公告)日:1989-06-29

    申请号:PCT/EP1988001142

    申请日:1988-12-12

    CPC classification number: G02B6/3817

    Abstract: The invention converns a coupling part (VS) which mates with a matching part (VB) and can be connected to a cable (K) with at least one lead (A) and one insulating layer (I). Electric or optical fibre cables, for example, are used to transmit information between two devices. A suitable coupling part is required for both type of cable. The coupling part (VS) disclosed, which can transmit both electrical and optical signals, has at least one electrical contact (S) and one optical contact (L), preferably of the same cross-section as the insulating layer (I) of the cable (K), which is made from optically conductive material. The coupling part is suitable for single- or multi-core cables, coaxial cables, ribbon cables, mains cables, etc.

    Abstract translation: 本发明涉及一种与匹配部分(VB)配合的耦合部分(VS),并且可以与至少一个引线(A)和一个绝缘层(I)连接到电缆(K)。 例如,电缆或光纤电缆用于在两个设备之间传输信息。 两种类型的电缆都需要合适的耦合部件。 公开的可以传输电信号和光信号的耦合部分(VS)具有至少一个电触头(S)和一个光学接触件(L),优选地具有与绝缘层(I)相同的横截面 电缆(K),由光导材料制成。 联轴器部件适用于单芯或多芯电缆,同轴电缆,带状电缆,电源电缆等。

    DATA REPRODUCTION DEVICE
    4.
    发明申请
    DATA REPRODUCTION DEVICE 审中-公开
    数据复制设备

    公开(公告)号:WO1988009988A1

    公开(公告)日:1988-12-15

    申请号:PCT/EP1988000470

    申请日:1988-05-26

    CPC classification number: G11B7/0948 G11B7/0946

    Abstract: In a data reproduction device, the data signals (HF) supplied by a photodetector (PD) are disrupted by dirt deposited on the recording support or by vibrations communicated to the equipment. When the light beam (L) for data exploration jumps several tracks as a result of the so-called track-jumping phenomenon, the upper curve envelope of the data signals (HF) assumes a sinusoidal shape. In order to determine immediately whether disruption is caused by dirt on the recording support or by equipment vibrations, and/or if the light beam jumps tracks, the upper curve envelope of the data signals (HF), coupled in d.c., is compared with an upper limit value (SO), and the lower curve envelope with a lower limit value (SU). If the upper curve envelope descends below the upper limit value (SO) a track-jump has occurred. If the lower curve envelope exceeds the lower limit value (SU), the cause is vibration of the device or dirt or scratches on the data support. The invention concerns compact disc play-back devices, draw-disc, video-disc players and magneto-optical equipment.

    Abstract translation: 在数据再现装置中,由光电检测器(PD)提供的数据信号(HF)被沉积在记录载体上的污垢或传送到设备的振动所破坏。 当用于数据探测的光束(L)由于所谓的轨道跳跃现象而跳跃几个轨道时,数据信号(HF)的上部曲线包络呈现正弦形状。 为了立即确定是否由记录支架上的污物或设备振动导致破坏,和/或如果光束跳跃轨道,则以直流方式耦合的数据信号(HF)的上曲线包络与 上限值(SO),下限值(SU)下限曲线。 如果上曲线包络低于上限值(SO),则发生轨迹跳跃。 如果较低的曲线包络超过下限值(SU),则会导致设备振动,数据支架上有污垢或划痕。 本发明涉及光盘播放设备,绘图盘,视频盘播放器和磁光设备。

    CIRCUIT ARRANGEMENT FOR REGULATING SIGNALS
    6.
    发明申请
    CIRCUIT ARRANGEMENT FOR REGULATING SIGNALS 审中-公开
    调节信号的电路布置

    公开(公告)号:WO1991019350A1

    公开(公告)日:1991-12-12

    申请号:PCT/EP1991000937

    申请日:1991-05-21

    CPC classification number: H03K17/941 H03K5/086 H03K2217/94114

    Abstract: When optical sensor signals in particular are evaluated, accurate determination of useful signal levels is often essential. For example, marks of different width are located on the rotor of a head drum motor, and the narrow markings produce sensor signals with a small peak value and the broad marks produce signals with a large peak value. The former signals are used to commute the head drum motor and the latter signals for reversing the magnetic heads of a video recorder. It is not always possible to distinguish between the different amplitudes of the signals because of tolerances of the marks and of the components of the evaluation circuit. The invention provides a control circuit which maintains the mean of the peak values of selected signal components constant. Video recorders, CD players, general regulation of signal components.

    FOCUSSING DEVICE FOR PICTURE REPRODUCTION UNITS
    7.
    发明申请
    FOCUSSING DEVICE FOR PICTURE REPRODUCTION UNITS 审中-公开
    用于图像复制单元的聚焦设备

    公开(公告)号:WO1991018480A1

    公开(公告)日:1991-11-28

    申请号:PCT/EP1991000890

    申请日:1991-05-14

    CPC classification number: H04N9/28

    Abstract: A focussing device for picture reproduction units is disclosed. In picture reproduction units, such as projection television sets, the electronic beam is not focussed with a uniform quality over the whole surface of the screen. The object of the invention is therefore to ensure a uniform focussing quality over the whole surface of the screen. Voltage values required for optimal focussing are determined for picture points distributed on the screen, then are recorded as digital signals in memories (M) and successively supplied to the focussing electrode of the picture tube (1, 2, 3) during reproduction. The device is particularly useful for focussing in a projection television set.

    PROCESS AND DEVICE FOR CONTROLLING AN ELECTRONICALLY COMMUTED MOTOR
    8.
    发明申请
    PROCESS AND DEVICE FOR CONTROLLING AN ELECTRONICALLY COMMUTED MOTOR 审中-公开
    用于控制电子式电机的过程和装置

    公开(公告)号:WO1991009462A1

    公开(公告)日:1991-06-27

    申请号:PCT/EP1990002225

    申请日:1990-12-18

    CPC classification number: H02P6/15

    Abstract: In electrical appliances with motors, which are used, for example, as a tape, disk or head drive, the problem of setting different operating modes as rapidly as possible is conventionally solved by supplying a current appreciably greater than or less than the stationary value to the coil when these changes are made. As soon as the final value of the rotational speed or torque is reached, the current is changed to the stationary value corresponding to the modified operating mode. According to the invention, the moment at which the coil current is changed is also changed in the acceleration, retardation and/or loading phase. Both the process and the circuit are used for preference in video and audio recorders.

    GRID-CORRECTION DEVICE FOR A TV SET
    9.
    发明申请
    GRID-CORRECTION DEVICE FOR A TV SET 审中-公开
    电视机的网格校正装置

    公开(公告)号:WO1991007058A1

    公开(公告)日:1991-05-16

    申请号:PCT/EP1990001933

    申请日:1990-10-30

    CPC classification number: H04N9/28 H04N17/04

    Abstract: A device is useful for correcting the grid in a TV set. In known grid-correction devices, in particular for correcting the convergence, correction values for certain pixels determined by points of intersection (K) of a grid pattern are stored in memories. In devices with several operating modes with different deflection amplitudes, fresh correction values must be stored for each operating mode, because the points of intersection shift on the picture area. In order to reduce the number of memories in operating modes with different deflection amplitudes, the instantaneous position of the control pulses for the grid pattern is varied so that the points of intersection (K) are always located at the same spatial positions of the picture area (1). The device is particularly useful for correcting the convergence in projection TV sets.

    DEVICE FOR AUTOMATICALLY ADJUSTING A DEFLECTION GRID ON A PICTURE AREA
    10.
    发明申请
    DEVICE FOR AUTOMATICALLY ADJUSTING A DEFLECTION GRID ON A PICTURE AREA 审中-公开
    用于在图像区域自动调整偏移网格的设备

    公开(公告)号:WO1991007048A2

    公开(公告)日:1991-05-16

    申请号:PCT/EP1990001906

    申请日:1990-10-26

    CPC classification number: H04N17/04 H04N3/2335 H04N9/28

    Abstract: A device is useful for automatically adjusting a deflection grid on a picture area. A beam of light from the deflection grid falls onto a light sensor (3) arranged on the picture surface (1). In order to obtain a simple sensor unit (3) which detects the deflection of the beam (L) in all directions, the sensor unit (3) contains four separate sensors (A to D) arranged in a four-quadrant detector. The control signals for the horizontal and vertical deflection used to adjust the beam are obtained by different combinations of the output signals of the sensors (A and D). This device is particularly useful for stabilizing the position of the picture and the amplitude of the deflection in a projection TV set.

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