公开(公告)号：US20020070914A1

公开(公告)日：2002-06-13

申请号：US09735151

申请日：2000-12-12

申请人： Philips Electronics North America Corporation

发明人： Gert W. Bruning ,  Chin Chang

IPC分类号： G09G003/36

CPC分类号： G09G3/3413 ,  G09G2310/0235 ,  G09G2320/0261 ,  G09G2320/041 ,  G09G2320/062 ,  G09G2320/064 ,  G09G2320/0666 ,  H05B33/0818 ,  H05B33/0857 ,  H05B33/0869 ,  Y02B20/346

摘要： A backlight for an LCD display comprised of an array of LEDs. The backlight may be driven and controlled by a fast pulse power converter, thus providing a response time for the backlight on the order of microseconds. The backlight may thus be used for image display, for example, in the depiction of images in a video input to the LCD and removal of image artifacts.

摘要翻译： 用于由LED阵列组成的LCD显示器的背光源。 背光源可以由快速脉冲功率转换器驱动和控制，从而为微秒级的背光提供响应时间。 因此，背光可以用于图像显示，例如，在对LCD的视频输入中的图像的描绘和图像伪像的去除。

公开(公告)号：US20030020415A1

公开(公告)日：2003-01-30

申请号：US09915700

申请日：2001-07-26

申请人： Philips Electronics North America Corporation

发明人： Gert W. Bruning

IPC分类号： H01J007/24

CPC分类号： H05B33/0821 ,  H01L25/167 ,  H01L2924/0002 ,  H05B33/0869 ,  H01L2924/00

摘要： A multichip light-emitting-diode package having a support member, at least two light-emitting-diode chips disposed on the support member, at least one sensor disposed on the support member for reporting quantitative and spectral information to a controller, relating to the light output of the light-emitting-diodes, and a signal processing circuit, including an analog-to-digital converter logic circuit, disposed on the support member for converting the analog signal output produced by the sensors to a digital signal output.

公开(公告)号：US20020070684A1

公开(公告)日：2002-06-13

申请号：US09732584

申请日：2000-12-08

申请人： PHILIPS ELECTRONICS NORTH AMERICA CORPORATION

发明人： Gert W. Bruning

IPC分类号： H05B037/02

CPC分类号： H05B41/2928 ,  Y02B20/208

摘要： A low cost method for operating a high intensity discharge (HID) lamp including a ballast circuit. The method includes generating DC in an AC-to-DC converter, capturing any AC ripple of the DC with a buffer capacitor to generate a control signal, generating a high frequency lamp power signal from DC utilizing an HF inverter circuit and modulating the high frequency power signal utilizing the control signal to generate a frequency swept lamp power signal to drive the lamp while avoiding acoustic resonance.

摘要翻译： 一种用于操作包括镇流器电路的高强度放电（HID）灯的低成本方法。 该方法包括在AC-DC转换器中产生DC，用缓冲电容捕获DC的任何交流纹波以产生控制信号，利用HF逆变器电路从DC生成高频灯功率信号，并调制高频 功率信号利用控制信号产生频率扫描灯功率信号以驱动灯，同时避免声共振。