METHOD OF DRIVING A DISCHARGE LAMP IN A PROJECTION SYSTEM, AND DRIVING UNIT
    71.
    发明申请
    METHOD OF DRIVING A DISCHARGE LAMP IN A PROJECTION SYSTEM, AND DRIVING UNIT 审中-公开
    在投影系统和驱动单元中驱动放电灯的方法

    公开(公告)号:US20100134765A1

    公开(公告)日:2010-06-03

    申请号:US11993498

    申请日:2006-06-23

    IPC分类号: G03B21/20

    CPC分类号: H05B41/36

    摘要: The invention describes a method of driving a discharge lamp (1) in a projection system (10), wherein, in a feed-forward control process, system status data (SDL, SDF, SDV) comprising static information pertaining to the design of the system and/or dynamic information pertaining to the projection system and/or dynamic information pertaining to the lamp operation are obtained. Based on the system status data (SDL, SDF, SDV), a momentary target light waveshape (LWT, LWT′) required by the projection system (10) and a waveshape correcting function are determined. Subsequently, the actual current (I) of the discharge lamp (1) is controlled regulated according to a momentary required waveshape (RW) which is determined based on the target light waveshape (LWT, LWT′) and the waveshape correcting function. Moreover the invention describes an appropriate driving unit (11) for driving a discharge lamp (1) and a projection system (10), comprising such a driving unit (11).

    摘要翻译: 本发明描述了一种在投影系统(10)中驱动放电灯(1)的方法,其中在前馈控制过程中,系统状态数据(SDL,SDF,SDV)包括有关设计的静态信息 获得与投影系统有关的系统和/或动态信息和/或与灯操作有关的动态信息。 基于系统状态数据(SDL,SDF,SDV),确定投影系统(10)所需的瞬时目标光波形(LWT,LWT')和波形校正功能。 随后,根据基于目标光波形(LWT,LWT')和波形校正功能确定的瞬时所需波形(RW)来控制放电灯(1)的实际电流(I)。 此外,本发明描述了用于驱动放电灯(1)和包括这种驱动单元(11)的投影系统(10)的适当的驱动单元(11)。

    METHOD OF COLOUR IMAGE PROJECTION USING SPATIAL LIGHT MODULATION AND LIGHT SOURCE MODULATION
    72.
    发明申请
    METHOD OF COLOUR IMAGE PROJECTION USING SPATIAL LIGHT MODULATION AND LIGHT SOURCE MODULATION 审中-公开
    使用空间光调制和光源调制的彩色图像投影方法

    公开(公告)号:US20090021456A1

    公开(公告)日:2009-01-22

    申请号:US12280109

    申请日:2007-02-12

    IPC分类号: G09G3/32

    摘要: The present invention relates to a method of operating a projection system comprising several solid state light sources (2, 3, 4) of different colour 13, 14, 15) and at least one spatial light modulator (1) having an array of switchable elements. Said array is illuminated by at least one of said light sources (2, 3, 4) for several illumination periods and is addressed such that the light is timely and spatially modulated to project images onto a screen. In the present method said light sources (2, 3, 4) are controlled to emit light modulated in amplitude (15) and/or time (18) during said illumination periods of said array. With the present method an increased greyscale resolution of the projection system can be achieved.

    摘要翻译: 本发明涉及一种操作投影系统的方法,该投影系统包括多个不同颜色的固态光源(2,3,4)13,14,15)和至少一个空间光调制器(1),该空间光调制器具有可切换元件阵列 。 所述阵列由至少一个所述光源(2,3,4)照亮几个照明周期,并被寻址,使得光被及时和空间调制以将图像投影到屏幕上。 在本方法中,所述光源(2,3,4)被控制为在所述阵列的所述照明周期期间发射以幅度(15)和/或时间(18)调制的光。 利用本方法可以实现投影系统的增加的灰度分辨率。

    Scanning Backlight For a Matrix Display
    73.
    发明申请
    Scanning Backlight For a Matrix Display 失效
    扫描背光用于矩阵显示

    公开(公告)号:US20080259020A1

    公开(公告)日:2008-10-23

    申请号:US11568986

    申请日:2005-05-09

    IPC分类号: G09G3/36

    摘要: A scanning backlight unit (BU) for a matrix display comprises a plurality of light sources (L1, . . . , Ln). A driver (2) supplies drive signals (D1, . . . , Dn) to the light sources (L1, . . . , Ln). A controller (3) controls the driver (2) to separately activate the light sources (L1, . . . , Ln) to obtain light-emitting regions (5) being active. A light sensor (4) is associated with a group of at least two of the light sources (L1, . . . , Ln) to supply a sensor signal (SES) which indicates a luminance (LU) of the group. The controller (3) reads the sensor signal (SES) at different instants (ts1, . . . , tsn) at which mutually different subsets of the light sources (L1, . . . , Ln) of the group are active to control the driver (2) to supply power levels to the light sources (L1, . . . , Ln) of the group to obtain a luminance (LU1, . . . , LUn) of each one of the light sources (L1, . . . , Ln) of the group in dependence on the sensor signal (SES).

    摘要翻译: 用于矩阵显示的扫描背光单元(BU)包括多个光源(L 1,...,Ln)。 驱动器(2)向光源(L 1,...,Ln)提供驱动信号(D 1,...,D n)。 控制器(3)控制驱动器(2)分别激活光源(L 1,...,Ln)以获得有效的发光区域(5)。 光传感器(4)与至少两个光源(L 1,...,Ln)的组相关联,以提供指示该组的亮度(LU)的传感器信号(SES)。 控制器(3)在不同时刻(ts 1,...,tsn)读取传感器信号(SES),在该时刻,该组的光源(L 1,...,Ln)的相互不同的子集被激活到 控制驱动器(2)以向该组的光源(L 1,...,Ln)提供功率电平,以获得每个光源(L)的亮度(LU 1,...,LU) 1,...,Ln),这取决于传感器信号(SES)。

    Method and Arrangement for Monitoring a Gas Discharge Lamp
    74.
    发明申请
    Method and Arrangement for Monitoring a Gas Discharge Lamp 审中-公开
    气体放电灯监控方法与装置

    公开(公告)号:US20080203939A1

    公开(公告)日:2008-08-28

    申请号:US11577427

    申请日:2005-10-17

    IPC分类号: H05B41/36 G01R31/00

    CPC分类号: H05B41/2928

    摘要: The invention relates to a method and an arrangement (10) for monitoring a gas discharge lamp (22), comprising a control circuit (18) for detecting an electrical measured value assigned to the lamp voltage. The control circuit (18) is provided for detecting one voltage value prior to a change in current and a second voltage value after a change in current, or a setting time, and for producing a control signal which depends on the difference in the voltage values or on the setting time. In this way, a pressure within the lamp is monitored and a control signal can be produced which can be used to cool the lamp or to switch the lamp off. This methods detects inflation and therefore prevents an explosion of the lamp.

    摘要翻译: 本发明涉及一种用于监测气体放电灯(22)的方法和装置(10),包括用于检测分配给灯电压的电测量值的控制电路(18)。 控制电路(18)被设置用于检测电流变化之前的一个电压值和电流变化或设定时间之后的第二电压值,并且用于产生取决于电压值差的控制信号 或在设定时间。 以这种方式,监视灯内的压力,并且可以产生可用于冷却灯泡或关闭灯泡的控制信号。 这种方法可以检测到充气,从而防止灯泡爆炸。

    Electrode temperature differential operation of a discharge lamp
    75.
    发明授权
    Electrode temperature differential operation of a discharge lamp 失效
    放电灯的电极温差运算

    公开(公告)号:US07327096B2

    公开(公告)日:2008-02-05

    申请号:US10518258

    申请日:2003-06-16

    IPC分类号: H05B37/02

    摘要: The invention relates to a method for operating a discharge lamp 11 including two electrodes 12,13. The method comprises applying to the electrodes an alternating current ILamp. In order to improve the performance of the lamp and to increase the life time of the lamp, it is proposed that the alternating current has a direct current component DC for compensating a temperature difference between the two electrodes. The direct current component is selected more specifically such that a first electrode, which is expected to have a lower temperature than the second electrode, functions as anode for the direct current component, while the second electrode functions as cathode for the direct current component. The invention relates equally to an electronic circuit and to a software program for operating a discharge lamp correspondingly, as well as to a lighting system comprising a discharge lamp and means for operating this discharge lamp correspondingly.

    摘要翻译: 本发明涉及一种用于操作包括两个电极12,13的放电灯11的方法。 该方法包括向电极施加交流电灯泡。 为了提高灯的性能并且增加灯的寿命,提出交流电具有用于补偿两个电极之间的温度差的直流分量DC。 更具体地选择直流分量,使得期望具有比第二电极低的温度的第一电极用作直流分量的阳极,而第二电极用作直流分量的阴极。 本发明同样涉及电子电路和用于相应地操作放电灯的软件程序,以及包括放电灯的照明系统和用于相应地操作该放电灯的装置。

    Method of representing a video image by means of a projector
    76.
    发明授权
    Method of representing a video image by means of a projector 有权
    通过投影仪表示视频图像的方法

    公开(公告)号:US07316483B2

    公开(公告)日:2008-01-08

    申请号:US10542150

    申请日:2003-12-22

    IPC分类号: G03B21/14

    摘要: The invention relates to a method of representing a video image based on a video signal by means of a projector which comprises an image display device and a high-pressure gas discharge lamp, which lamp is supplied with a square-wave alternating current (I0, I10) on which a current pulse (P1, P3, P10, P40) is superimposed before each phase reversal. According to the invention, the alternating current (I0, I10) is superimposed with a second current pulse (P2, P4, P20, P30, P50, P60) of the same polarity. A simple attunement of the alternating current frequency to the image frequency without image artifacts is made possible by the second pulses (P2, P4, P20, P30, P50, P60).

    摘要翻译: 本发明涉及一种借助于投影机基于视频信号表示视频图像的方法,该投影仪包括图像显示装置和高压气体放电灯,该灯被提供方波交流电(I 0 ,I 10),在每个相位反转之前叠加有电流脉冲(P 1,P 3,P 10,P 40)。 根据本发明,交流电流(I 0,I 10)与相同极性的第二电流脉冲(P 2,P 4,P 20,P 30,P 50,P 60)叠加。 通过第二脉冲(P 2,P 4,P 20,P 30,P 50,P 60)可以将交流频率简单地调整到没有图像伪像的图像频率。

    Image projector with intensity-controlled light source
    77.
    发明授权
    Image projector with intensity-controlled light source 失效
    具有强度控制光源的图像投影机

    公开(公告)号:US07273284B2

    公开(公告)日:2007-09-25

    申请号:US10531016

    申请日:2003-10-07

    IPC分类号: G03B21/14

    CPC分类号: H04N9/3117 H05B41/2928

    摘要: A projection system for image representation includes a display, a lamp, and a sensor for generating a sensor signal for monitoring and compensating changes in the luminous flux provided by the lamp. To achieve a monitoring of the light quantity actually incident on the display, an optical component is arranged in a light path between the lamp and the display. The optical component allows a first light component to pass through and reflects a second light component such that one of the light components is directed at the display and the other light component is directed at the sensor arranged outside the light path. A sensor signal generated in this manner renders it possible to compensate for fluctuations in the luminous flux provided by the lamp through the control of a lamp driver in an effective.

    摘要翻译: 用于图像表示的投影系统包括显示器,灯和用于生成用于监视和补偿由灯提供的光通量的变化的传感器信号的传感器。 为了实现对实际入射在显示器上的光量的监视,在灯和显示器之间的光路中布置有光学部件。 光学部件允许第一光分量通过并反射第二光分量,使得一个光分量指向显示器,另一个光分量指向布置在光路外的传感器。 以这种方式产生的传感器信号使得可以有效地通过灯驱动器的控制来补偿由灯提供的光通量的波动。

    Method of representing a video image by means of a projector
    78.
    发明申请
    Method of representing a video image by means of a projector 有权
    通过投影仪表示视频图像的方法

    公开(公告)号:US20060050246A1

    公开(公告)日:2006-03-09

    申请号:US10542150

    申请日:2003-12-22

    IPC分类号: G03B21/20

    摘要: The invention relates to a method of representing a video image based on a video signal by means of a projector which comprises an image display device and a high-pressure gas discharge lamp, which lamp is supplied with a square-wave alternating current (I0, I10) on which a current pulse (P1, P3, P10, P40) is superimposed before each phase reversal. According to the invention, the alternating current (I0, I10) is superimposed with a second current pulse (P2, P4, P20, P30, P50, P60) of the same polarity. A simple attunement of the alternating current frequency to the image frequency without image artefacts is made possible by the second pulses (P2, P4, P20, P30, P50, P60).

    摘要翻译: 本发明涉及一种借助于投影机基于视频信号表示视频图像的方法,该投影仪包括图像显示装置和高压气体放电灯,该灯被提供方波交流电(I 0 ,I 10),在每个相位反转之前叠加有电流脉冲(P 1,P 3,P 10,P 40)。 根据本发明,交流电流(I 0,I 10)与相同极性的第二电流脉冲(P 2,P 4,P 20,P 30,P 50,P 60)叠加。 通过第二脉冲(P 2,P 4,P 20,P 30,P 50,P 60),可以将交流频率简单地调整到没有图像伪影的图像频率。

    Projection system
    79.
    发明申请
    Projection system 失效
    投影系统

    公开(公告)号:US20060023304A1

    公开(公告)日:2006-02-02

    申请号:US10528935

    申请日:2003-09-18

    IPC分类号: G03B21/56

    摘要: A projection system for image reproduction by means of at least one lamp (10) as well as a sensor (30) for generating a sensor signal for monitoring changes in the luminous flux generated by said at least one lamp (10) and for compensating these changes through a suitable control of the image reproduction is described. The projection system comprises a device (31; 32; 36, 37) for eliminating substantially periodic interference components from the sensor signal generated by the at least one sensor (30; 301, 302, 303). These interference components may be generated by an optical component such as in particular a color modulator (12) of the projection system. The invention thus renders possible an at least substantially interference-free compensation of fluctuations in the luminous flux generated by the lamp (10), for example owing to an unstable arc discharge, also in those color systems in which the positioning of the sensor (30) in the projection system is non-critical.

    摘要翻译: 一种用于通过至少一个灯(10)进行图像再现的投影系统以及用于产生用于监测所述至少一个灯(10)产生的光束变化的传感器信号的传感器(30),并用于补偿这些 描述通过图像再现的适当控制的改变。 投影系统包括用于从由至少一个传感器(30; 301,302,303)产生的传感器信号中消除基本上周期性的干扰分量的装置(31; 32; 36,37)。 这些干扰分量可以由诸如特别是投影系统的颜色调制器(12)的光学部件产生。 因此,本发明使得例如由于不稳定的电弧放电使得由灯(10)产生的光通量的波动至少基本上无干扰地补偿,在传感器(30)的定位的那些颜色系统中 )在投影系统中是非关键的。

    Server for standby management in a network
    80.
    发明申请
    Server for standby management in a network 审中-公开
    服务器用于在网络中进行待机管理

    公开(公告)号:US20050177627A1

    公开(公告)日:2005-08-11

    申请号:US10506838

    申请日:2003-03-03

    摘要: The invention relates to a method and a server (1) for implementation of central standby functions in an (in-home) network with devices (11-16) connected thereto. The standby server (1) contains a central processor (3), a mass memory (4) and interfaces (2, 5, 6) for the network connection. When one of the devices (11-16) is shut down, it sends corresponding information and where applicable data to the server (1) whereupon the latter takes over the standby functions for the device. In particular the server (1) can temporarily store data directed to the device as long as this is switched off, or pass on with time delay data to be transmitted by the device. Centralization of the standby functions in a special server reduces the energy consumption and improves the speed of data transmission.

    摘要翻译: 本发明涉及一种用于在(家庭内)网络中实现与其连接的设备(11-16)的中央备用功能的方法和服务器(1)。 备用服务器(1)包含用于网络连接的中央处理器(3),大容量存储器(4)和接口(2,5,6)。 当其中一个设备(11-16)关闭时,它会将相应的信息和适用的数据发送到服务器(1),从而后者接管设备的备用功能。 特别地,服务器(1)可以临时存储指向设备的数据,只要该关闭即可,或者通过设备传送的时延数据传递。 专用服务器中的备用功能的集中化降低了能耗,提高了数据传输的速度。