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1. 发明授权

US07313271B2 Color detection using grayscale and position information 有权
标题翻译：使用灰度和位置信息进行颜色检测
公开(公告)号：US07313271B2
公开(公告)日：2007-12-25
申请号：US11007498
申请日：2004-12-07
申请人： Boon Keat Tan , Jlin Cheang Cheong , Chung Min Thor
发明人： Boon Keat Tan , Jlin Cheang Cheong , Chung Min Thor
IPC分类号： G06K9/00
CPC分类号： H04N1/465 , H04N1/6033
摘要： The color of a surface is determined by tracking the position of the surface using grayscale image sensing and then using captured grayscale image information, position information, and grayscale-to-color conversion information to determine color. In one embodiment, the technique requires establishing grayscale-to-color conversion information and a relationship between position and the grayscale-to-color conversion information. A calibration pattern is printed on a piece of paper and the surface of the paper is illuminated. Grayscale image information and position information related to the surface is generated in response to the illumination. Color-specific portions of the grayscale-to-color conversion information that are to be used in color determination are selected based on the position information. Grayscale image information related to the calibration pattern is then compared to the selected color-specific portions of the grayscale-to-color conversion information to determine the color of the calibration pattern.
摘要翻译：通过使用灰度图像感测跟踪表面的位置，然后使用捕获的灰度图像信息，位置信息和灰度到颜色转换信息来确定颜色来确定表面的颜色。在一个实施例中，该技术需要建立灰度到颜色转换信息以及位置与灰度到颜色转换信息之间的关系。校准图案印在一张纸上，纸张的表面被照亮。响应于照明产生与表面相关的灰度图像信息和位置信息。基于位置信息来选择要用于颜色确定的灰度到颜色转换信息的颜色特定部分。然后将与校准图案相关的灰度图像信息与灰度到颜色转换信息的所选颜色特定部分进行比较，以确定校准图案的颜色。

2. 发明授权

US07521669B2 Multi-bit absolute position optical encoder with reduced number of tracks 有权
标题翻译：多位绝对位置光学编码器，轨道数减少
公开(公告)号：US07521669B2
公开(公告)日：2009-04-21
申请号：US11445661
申请日：2006-06-02
申请人： Kheng Hin Toh , Lee Ling Teh , Chung Min Thor , Boon Keat Tan
发明人： Kheng Hin Toh , Lee Ling Teh , Chung Min Thor , Boon Keat Tan
IPC分类号： G01D5/30
CPC分类号： H03M1/28 , H03M1/26
摘要： An optical encoder includes a coding element having a track with a track pattern that comprises multiple optically distinguishable sections. The optical encoder compares photodetector outputs with transition-specific thresholds that correspond to transitions between the optically distinguishable sections of the track. The comparisons are used to determine when the transition between two optically distinguishable sections of the track has passed the photodetector. Knowledge of the transition between two optically distinguishable sections is then translated into digital position information.
摘要翻译：光学编码器包括具有轨道图案的轨道的编码元件，其包括多个可光学区分的区域。光学编码器将光电检测器输出与对应于轨道的光学可区分部分之间的跃迁的转变特定阈值进行比较。比较用于确定轨道的两个光学可区分部分之间的转变何时已经通过光电检测器。然后将两个光学可区分部分之间的转换的知识转换成数字位置信息。

3. 发明授权

US08026672B2 Light emitting device 有权
标题翻译：发光装置
公开(公告)号：US08026672B2
公开(公告)日：2011-09-27
申请号：US12323419
申请日：2008-11-25
申请人： Farn Hin Chen , Tak Meng Cheang , Boon Keat Tan
发明人： Farn Hin Chen , Tak Meng Cheang , Boon Keat Tan
IPC分类号： H05B37/00 , H05B39/00 , H05B41/00 , H05B37/02 , H05B39/04 , H05B41/36 , G05F1/00
CPC分类号： H05B33/0824
摘要： A light emitting device is disclosed herein. An embodiment of the light emitting device comprises a first plurality of light emitters comprising a first group and a second group, wherein the first group is connectable in series to the second group. A first driver is connected to the first group. A second driver is connectable to the second group. A first voltage comparator is coupled to the first driver, wherein the voltage comparator compares the voltage of the first driver to a predetermined voltage. The light emitting device is in a first state when the voltage of the first driver is below the predetermined voltage. The light emitting device is in a second state when the voltage of the first driver is greater than the predetermined voltage. The light emitting device is in the first state, the first group is connected in series with the second group to form a series circuit between the first driver and a reference voltage. When the light emitting device is in the second state, the first group is connected between the first driver and the reference voltage and the second group is connected between the second driver and the reference voltage.
摘要翻译：本文公开了一种发光器件。发光器件的一个实施例包括第一组多个光发射器，其包括第一组和第二组，其中第一组可与第二组串联连接。第一个驱动程序连接到第一个组。第二个驱动器可连接到第二组。第一电压比较器耦合到第一驱动器，其中电压比较器将第一驱动器的电压与预定电压进行比较。当第一驱动器的电压低于预定电压时，发光器件处于第一状态。当第一驱动器的电压大于预定电压时，发光器件处于第二状态。发光器件处于第一状态，第一组与第二组串联连接，以在第一驱动器和参考电压之间形成串联电路。当发光器件处于第二状态时，第一组连接在第一驱动器和参考电压之间，第二组连接在第二驱动器和参考电压之间。

4. 发明申请

US20100302532A1 PHOTODETECTOR HAVING DARK CURRENT CORRECTION 有权
标题翻译：具有深色电流校正功能的光电二极管
公开(公告)号：US20100302532A1
公开(公告)日：2010-12-02
申请号：US12626060
申请日：2009-11-25
申请人： Farn Hin Chen , Gim Eng Chew , Boon Keat Tan
发明人： Farn Hin Chen , Gim Eng Chew , Boon Keat Tan
IPC分类号： G01J1/42 , H01L31/18
CPC分类号： G01N21/251 , G01J1/0488 , G01J1/1626 , G01J1/4228 , G01N2201/12707
摘要： A method for determining the light intensity of a light signal in each of a plurality of spectral bands is disclosed and a method for fabricating a photodetector is also disclosed.
摘要翻译：公开了一种用于确定多个光谱带中的每一个中的光信号的光强度的方法，并且还公开了一种用于制造光电检测器的方法。

5. 发明申请

US20100271842A1 MULTI-COLOR ILLUMINATING BACK LIGHT STRUCTURE 有权
标题翻译：多色照明背光结构
公开(公告)号：US20100271842A1
公开(公告)日：2010-10-28
申请号：US12429928
申请日：2009-04-24
申请人： Tak Meng Cheang , Boon Keat Tan , Scott Weitzel
发明人： Tak Meng Cheang , Boon Keat Tan , Scott Weitzel
IPC分类号： F21V7/04 , H01J9/24
CPC分类号： G02B6/005 , G02B6/0038
摘要： In an embodiment, the invention provides a multi-color illuminating back light structure comprising a light guide, a reflector, at least one LED and a wavelength converter material. Micro-structures are formed on a first surface of the light guide. The reflector is attached to the first surface of the light guide. A wavelength converter material is deposited on a second surface of the light guide. At least one LED is optically coupled to at least one side of the light guide. A portion of light reflected from the micro-structures and the reflector is converted into light having at least one wavelength different from the wavelength of the reflected light. The light leaving the wavelength converter material comprises light with at least first and second wavelengths.
摘要翻译：在一个实施例中，本发明提供一种多色照明背光结构，其包括光导，反射器，至少一个LED和波长转换器材料。微结构形成在光导的第一表面上。反射器附接到光导的第一表面。波长转换器材料沉积在光导的第二表面上。至少一个LED光耦合到光导的至少一侧。从微结构和反射器反射的光的一部分被转换成具有与反射光的波长不同的至少一个波长的光。离开波长转换器材料的光包括具有至少第一和第二波长的光。

6. 发明申请

US20100149819A1 LIGHT EMITTING DEVICE 有权
标题翻译：发光装置
公开(公告)号：US20100149819A1
公开(公告)日：2010-06-17
申请号：US12333076
申请日：2008-12-11
申请人： Siang Ling Oon , Ju Chin Poh , Boon Keat Tan
发明人： Siang Ling Oon , Ju Chin Poh , Boon Keat Tan
IPC分类号： F21V7/22 , F21V7/06
CPC分类号： H01L33/60
摘要： A light emitting device is disclosed herein which includes a substrate, a housing, a light emitting die, and a cup with a reflective inner surface. The housing has an upper surface and at least one sidewall and is mounted on the upper surface of the substrate, thereby forming a cavity. The light emitting die is mounted on the upper surface of the substrate within the cavity. The cup is positioned within the cavity and is supported by the housing. The cup has a continuous sidewall with a reflective inner surface surrounding the light emitting die and a lowermost edge that is suspended above, detached and spaced away from the upper surface of the substrate.
摘要翻译：本文公开了一种发光器件，其包括衬底，壳体，发光管芯和具有反射内表面的杯。壳体具有上表面和至少一个侧壁，并且安装在基板的上表面上，从而形成空腔。发光模具安装在空腔内的基板的上表面上。杯子定位在腔内并由壳体支撑。该杯具有连续的侧壁，其具有包围发光模具的反射内表面和悬挂在基板的上表面上方，分离和间隔开的最下边缘。

7. 发明申请

US20090127431A1 ILLUMINATION SYSTEM CALIBRATION AND OPERATION HAVING A CALIBRATION MATRIX CALCULATION BASED ON A SHIFT IN COLOR SPACE (AS AMENDED) 有权
标题翻译：具有基于颜色空间移动的校准矩阵计算的照明系统校准和操作（如修改）
公开(公告)号：US20090127431A1
公开(公告)日：2009-05-21
申请号：US11944206
申请日：2007-11-21
申请人： Rene Helbing , Erik Halvordsson , Boon Keat Tan
发明人： Rene Helbing , Erik Halvordsson , Boon Keat Tan
IPC分类号： G01J1/32 , G01N21/86
CPC分类号： G01J3/50 , G01J1/32 , G01J2001/4247
摘要： A method for calibrating an illumination system is disclosed herein. The illumination system comprises at least one light emitter and at least one color sensor. The method comprises emitting a first wavelength of light from the a light emitter and measuring the color of light emitted by the light emitter using the color sensors. A second wavelength of light is emitted from the a light emitter and the color of light emitted by the light emitter is measured using the color sensors. The shift in color space based on the measurements is calculated. At least one calibration matrix based on the shift in colors space is calculated.
摘要翻译：本文公开了一种校准照明系统的方法。照明系统包括至少一个光发射器和至少一个颜色传感器。该方法包括从光发射器发射第一波长的光并使用颜色传感器测量由光发射器发射的光的颜色。从光发射器发射第二波长的光，并且使用颜色传感器测量由发光体发射的光的颜色。计算基于测量值的颜色空间偏移。计算出基于颜色空间偏移的至少一个校准矩阵。

8. 发明申请

US20090213062A1 COLOR CONTROL OF A BACKLIGHTING SYSTEM 有权
标题翻译：背光系统的颜色控制
公开(公告)号：US20090213062A1
公开(公告)日：2009-08-27
申请号：US12037781
申请日：2008-02-26
申请人： Joh Joh Ng , Tak Meng Cheang , Boon Keat Tan
发明人： Joh Joh Ng , Tak Meng Cheang , Boon Keat Tan
IPC分类号： G09G3/36
CPC分类号： H05B33/086 , G09G3/3413 , G09G3/3426 , G09G2320/0242 , G09G2320/0646 , G09G2360/145 , Y02B20/341
摘要： In an embodiment, the invention provides a method of color control in a backlighting system comprising a plurality of light sources, a plurality of color sensors, a plurality of PWM controllers, and a video input for receiving video data. The plurality of light sources is activated during a first operative mode to produce white light. The plurality of light sources is controlled during a second operative mode to produce white light.
摘要翻译：在一个实施例中，本发明提供了一种背光系统中的颜色控制方法，包括多个光源，多个彩色传感器，多个PWM控制器和用于接收视频数据的视频输入。多个光源在第一操作模式下被激活以产生白光。在第二操作模式期间控制多个光源以产生白光。

9. 发明授权

US07544924B2 Directional input device with a light directing shaft 有权
标题翻译：带导光轴的定向输入装置
公开(公告)号：US07544924B2
公开(公告)日：2009-06-09
申请号：US11356477
申请日：2006-02-17
申请人： Siang Leong Foo , Boon Keat Tan , Yee Loong Chin
发明人： Siang Leong Foo , Boon Keat Tan , Yee Loong Chin
IPC分类号： G06M7/00
CPC分类号： G06F3/0338
摘要： A directional input device with a light directing shaft that avoids wear and tear caused by physical contact between a shaft and a sensor surface. A directional input device according to the present teachings includes a light emitter and a shaft having a surface that reflects light from the light emitter. A directional input device according to the present teachings further includes a set of light sensing elements that are positioned to detect a position of the shaft by sensing light reflected from the shaft.
摘要翻译：具有导光轴的方向输入装置，其避免由轴和传感器表面之间的物理接触引起的磨损和撕裂。根据本教导的定向输入装置包括光发射器和具有反射来自光发射器的光的表面的轴。根据本发明的方向输入装置还包括一组光感测元件，其被定位成通过感测从轴反射的光来检测轴的位置。

10. 发明授权

US07491927B2 Color sensing circuit employing charge storage device 有权
标题翻译：采用电荷存储装置的彩色感应电路
公开(公告)号：US07491927B2
公开(公告)日：2009-02-17
申请号：US10877864
申请日：2004-06-24
申请人： Boon Keat Tan , Chi Mun Ho , Len Li Kevin Lim
发明人： Boon Keat Tan , Chi Mun Ho , Len Li Kevin Lim
IPC分类号： G01J3/50
CPC分类号： G01J3/50 , G01J1/46
摘要： The color sensing circuit includes a light detector to receive light and to generate a signal that is dependent on the received light. The light detector includes a first electrode coupled to a first node and a second electrode coupled to a second predetermined signal. A storage device is provided that includes a first node and a second node coupled to the second predetermined signal. A first switch is provided that selectively couples the first node with the first electrode of the storage device based on a charge control signal. A signal processing circuit is provided that includes a first electrode and an output to generate an output signal that represents the light received by the light detector. A second switch is also provided that selectively couples the first electrode of the storage device with the first electrode of the signal processing circuit based on an evaluate control signal. The signal processing circuit selectively asserts the charge control signal and evaluate control signal.
摘要翻译：颜色感测电路包括用于接收光并产生取决于所接收的光的信号的光检测器。光检测器包括耦合到第一节点的第一电极和耦合到第二预定信号的第二电极。提供了一种存储设备，其包括耦合到第二预定信号的第一节点和第二节点。提供了第一开关，其基于充电控制信号选择性地将第一节点与存储装置的第一电极耦合。提供了一种信号处理电路，其包括第一电极和输出端，以产生表示由光检测器接收的光的输出信号。还提供了第二开关，其基于评估控制信号，选择性地将存储装置的第一电极与信号处理电路的第一电极耦合。信号处理电路选择性地断言充电控制信号并评估控制信号。

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