公开(公告)号：US07638956B2

公开(公告)日：2009-12-29

申请号：US11775236

申请日：2007-07-10

Applicant: Ming-Dah Liu ,  Yu-Chuan Wen ,  Chia-Hung Hsu

Inventor： Ming-Dah Liu ,  Yu-Chuan Wen ,  Chia-Hung Hsu

IPC: G05F1/00

CPC classification number: G01J1/4228 ,  G01J1/0488 ,  G01J1/18 ,  G01J1/32 ,  G01J3/51 ,  G01J3/513 ,  G01J2001/4252

Abstract: To control chroma and brightness in a backlight module, a plurality of reference values of a plurality of monochromatic light beams are provided, and a brightness reference value is provided for the light formed of the monochromatic light beams. Then, a plurality of first light signals of the monochromatic light beams, and a second light signal of the light formed of the monochromatic light beams are sensed and compared with the reference values and the brightness reference value, respectively. Finally, the monochromatic light beams outputted by the plurality of LEDs is calibrated according to a comparison result of the plurality of first light signals with the plurality of reference values and a comparison result of the second light signal with the brightness reference value.

Abstract translation: 为了控制背光模块中的色度和亮度，提供多个单色光束的多个参考值，并且为由单色光束形成的光提供亮度基准值。 然后，分别检测单色光束的多个第一光信号和由单色光束形成的光的第二光信号，并将其与基准值和亮度基准值进行比较。 最后，根据具有多个参考值的多个第一光信号的比较结果和第二光信号与亮度参考值的比较结果，校准由多个LED输出的单色光束。

公开(公告)号：US07586079B2

公开(公告)日：2009-09-08

申请号：US11434599

申请日：2006-05-13

Applicant: Christopher Mullin ,  Albert H. Titus ,  Kiriti Bhagavathula

Inventor： Christopher Mullin ,  Albert H. Titus ,  Kiriti Bhagavathula

IPC: G01J1/44 ,  G01J1/36 ,  G02B27/00

CPC classification number: G01J1/26 ,  G01J1/1626 ,  G01J1/18 ,  G01J1/4228 ,  G01J1/44 ,  G01J2001/0276 ,  H03F3/082 ,  H03F3/45183 ,  H03F2203/45674

Abstract: The invention may be embodied as a glare detection system or as a method of detecting glare. In a system according to the invention, there may be a light receiving surface, a first input channel, a second input channel, a glare signaling circuit and a glare reducing circuit. The first input channel may provide an indication of the amount of light impinging on a first portion of the light receiving surface. The second input channel may provide an indication of the amount of light impinging on a second portion of the light receiving surface. The glare signaling circuit (“GSC”) may have a first input port in communication with the first input channel, a second input port in communication with the second input channel, a logic-or gate capable of producing an output signal when the logic-or gate detects that the first input channel or the second input channel indicates glare on the light receiving surface. The glare reducing circuit (“GRC”) may be in communication with the logic-or gate, and may be capable of reacting when the logic-or gate produces the output signal. For example, the GRC may react by determining where on the light receiving surface glare exists.

Abstract translation: 本发明可以被实施为眩光检测系统或者作为检测眩光的方法。 在根据本发明的系统中，可以存在光接收表面，第一输入通道，第二输入通道，眩光信号电路和眩光减少电路。 第一输入通道可以提供照射在光接收表面的第一部分上的光量的指示。 第二输入通道可以提供照射在光接收表面的第二部分上的光量的指示。 眩光信号电路（“GSC”）可以具有与第一输入通道通信的第一输入端口，与第二输入通道通信的第二输入端口，能够产生逻辑 - 或门检测到第一输入通道或第二输入通道在光接收表面上指示眩光。 眩光降低电路（“GRC”）可以与逻辑门或栅极通信，并且可以在逻辑或门产生输出信号时反应。 例如，GRC可以通过确定在光接收表面上存在眩光的位置来进行反应。

公开(公告)号：US07518715B1

公开(公告)日：2009-04-14

申请号：US12145406

申请日：2008-06-24

Applicant: Rick A. Hamilton, II ,  Paul A. Moskowitz ,  Brian M. O'Connell ,  Clifford A. Pickover ,  Keith R. Walker

Inventor： Rick A. Hamilton, II ,  Paul A. Moskowitz ,  Brian M. O'Connell ,  Clifford A. Pickover ,  Keith R. Walker

IPC: G01J1/42

CPC classification number: G01J1/02 ,  G01J1/0219 ,  G01J1/18 ,  G01J3/28 ,  G01J2001/4247

Abstract: A method for receiving light from a plurality of light sources using an apparatus configured to analyze the time dependence of the light intensity to determine a type of light bulb and light intensity from the plurality of light sources based upon a detected frequency of variation of the light intensity.

Abstract translation: 一种用于从多个光源接收光的方法，该装置被配置为基于检测到的光的变化频率来分析光强度的时间依赖性以确定来自多个光源的灯泡的类型和光强度 强度。

公开(公告)号：US07446303B2

公开(公告)日：2008-11-04

申请号：US11669360

申请日：2007-01-31

Applicant: Selvan Maniam ,  Kean Loo Keh ,  Farn Hin Chen

Inventor： Selvan Maniam ,  Kean Loo Keh ,  Farn Hin Chen

IPC: G01J3/51

CPC classification number: G01J3/46 ,  G01J1/18 ,  G01J1/32 ,  G01J1/4204 ,  G01J3/465 ,  G01J3/51 ,  G01J3/513 ,  H05B33/0872 ,  H05B37/0218 ,  Y02B20/46

Abstract: An ambient light sensor (ALS) system is described. The ALS system includes a polychromatic color sensor, an analog-to-digital converter (ADC), and a digital processor. The polychromatic color sensor generates a plurality of analog signals from a corresponding plurality of color channels based on a detected ambient light signal. The ADC is coupled to the polychromatic color sensor. The ADC converts the plurality of analog signals to a plurality of digital signals. The digital processor is coupled to the ADC. The digital processor generates a processed light signal. The processed light signal describes a characteristic of the detected ambient light signal. Embodiments of the ALS system provide a more comprehensive characterization of the ambient light, and facilitate control of a device based on the characterization of the ambient light.

Abstract translation: 描述了环境光传感器（ALS）系统。 ALS系统包括多色彩色传感器，模数转换器（ADC）和数字处理器。 多色彩色传感器基于检测到的环境光信号从相应的多个颜色通道生成多个模拟信号。 ADC耦合到多色彩色传感器。 ADC将多个模拟信号转换成多个数字信号。 数字处理器耦合到ADC。 数字处理器产生经处理的光信号。 经处理的光信号描述检测到的环境光信号的特性。 ALS系统的实施例提供了对环境光的更全面的表征，并且基于环境光的表征便于对设备的控制。

公开(公告)号：US20080128591A1

公开(公告)日：2008-06-05

申请号：US11981833

申请日：2007-10-30

Applicant: W. Daniel Hillis ,  Nathan P. Myhrvold ,  Lowell L. Wood

Inventor： W. Daniel Hillis ,  Nathan P. Myhrvold ,  Lowell L. Wood

IPC: H01J40/14

CPC classification number: H03M1/08 ,  G01J1/18 ,  G01J1/4228 ,  H03M1/44 ,  H04N5/335

Abstract: An analog to digital converter and related systems.

Abstract translation: 模数转换器及相关系统。

公开(公告)号：US07365833B1

公开(公告)日：2008-04-29

申请号：US10773922

申请日：2004-02-05

Applicant: Edward Granger

Inventor： Edward Granger

IPC: G01J1/42

CPC classification number: G01J1/02 ,  G01J1/0214 ,  G01J1/0488 ,  G01J1/18 ,  G01J1/44

Abstract: Two or more triangular apertures are employed to pass radiation from a source to a detector to reduce the amount of stray radiation received by the detector. Preferably, the two apertures are equilateral triangles oriented at 60 rotated relative to each other and have dimensions proportional to their distances from the detector. A Bessel filter is employed to reduce the effect of flicker and other rapid changes in intensity in the radiance from the source. The output of the sensor is integrated and sampled at sampling time intervals that are powers of two of time, and a reading is provided when the output of the integrator exceeds the same threshold under all radiation source intensity conditions so that the meter has a substantially constant resolution at different signal levels. Where the radiation from the source is transmitted or reflected by the sample before such radiation is detected by the detector, the instrument becomes a transmissometer or reflectometer.

Abstract translation: 采用两个或更多个三角形孔来将辐射从源传递到检测器以减少由检测器接收的杂散辐射的量。 优选地，两个孔是以60 相对于彼此旋转并且具有与它们与检测器的距离成比例的尺寸。 采用贝塞尔滤波器来减少来自光源的闪烁和强度的其他快速变化的影响。 传感器的输出以两个时间功率的采样时间间隔进行积分和采样，当在所有辐射源强度条件下积分器的输出超过相同的阈值时，提供读数，使得仪表具有基本上恒定的 分辨率在不同的信号水平。 在由检测器检测到这种辐射之前来自源的辐射被样品透射或反射的情况下，仪器变为透射计或反射计。

公开(公告)号：US20080068597A1

公开(公告)日：2008-03-20

申请号：US11775236

申请日：2007-07-10

Applicant: Ming-Dah Liu ,  Yu-Chuan Wen ,  Chia-Hung Hsu

Inventor： Ming-Dah Liu ,  Yu-Chuan Wen ,  Chia-Hung Hsu

IPC: G01J1/10

CPC classification number: G01J1/4228 ,  G01J1/0488 ,  G01J1/18 ,  G01J1/32 ,  G01J3/51 ,  G01J3/513 ,  G01J2001/4252

Abstract: To control chroma and brightness in a backlight module, a plurality of reference values of a plurality of monochromatic light beams are provided, and a brightness reference value is provided for the light formed of the monochromatic light beams. Then, a plurality of first light signals of the monochromatic light beams, and a second light signal of the light formed of the monochromatic light beams are sensed and compared with the reference values and the brightness reference value, respectively. Finally, the monochromatic light beams outputted by the plurality of LEDs is calibrated according to a comparison result of the plurality of first light signals with the plurality of reference values and a comparison result of the second light signal with the brightness reference value.

Abstract translation: 为了控制背光模块中的色度和亮度，提供多个单色光束的多个参考值，并且为由单色光束形成的光提供亮度基准值。 然后，分别检测单色光束的多个第一光信号和由单色光束形成的光的第二光信号，并将其与基准值和亮度基准值进行比较。 最后，根据具有多个参考值的多个第一光信号的比较结果和第二光信号与亮度参考值的比较结果，校准由多个LED输出的单色光束。

公开(公告)号：US07321424B2

公开(公告)日：2008-01-22

申请号：US11197195

申请日：2005-08-04

Applicant: James A. McCandless

Inventor： James A. McCandless

IPC: G01J3/42

CPC classification number: G01J3/02 ,  G01B11/0616 ,  G01J1/18 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/0235 ,  G01J3/06 ,  G01J3/28 ,  G01J3/42 ,  G01J2003/2866 ,  G01N21/251 ,  G01N21/276 ,  G01N21/55 ,  G01N21/59 ,  G01N2201/12723 ,  G01N2201/128 ,  G01N2201/1281

Abstract: In a self-referencing instrument for measuring electromagnetic radiation, a mounting member to which a sample can be coupled moves the sample such that, in a first position, the electromagnetic radiation impinges on the sample, and, in a second position, the electromagnetic radiation does not impinge on the sample. A detection unit receives the electromagnetic radiation from the sample and generates a sample signal when the sample is in the first position, and the detection unit receives the electromagnetic radiation from the source and generates a reference signal when the sample is in the second position. A processor coupled to the detection unit processes the reference signal and the sample signal. This results in a continuous, accurate reference measurement, and permits the instrument to efficiently compensate for error, while offering accurate measurements.

Abstract translation: 在用于测量电磁辐射的自参考仪器中，可以耦合样品的安装构件移动样品，使得在第一位置，电磁辐射照射在样品上，并且在第二位置中，电磁辐射 不会影响样品。 检测单元从样本接收电磁辐射，并且当样本处于第一位置时产生采样信号，并且当样本处于第二位置时，检测单元从源接收电磁辐射并产生参考信号。 耦合到检测单元的处理器处理参考信号和采样信号。 这将产生连续，准确的参考测量，并允许仪器有效地补偿误差，同时提供准确的测量。

公开(公告)号：US20070081149A1

公开(公告)日：2007-04-12

申请号：US11344205

申请日：2006-02-01

Applicant: Noboru Kobayashi ,  Riki Ogawa ,  Masayuki Hideshima ,  Hiroyuki Nagahama ,  Koji Nakajima

Inventor： Noboru Kobayashi ,  Riki Ogawa ,  Masayuki Hideshima ,  Hiroyuki Nagahama ,  Koji Nakajima

IPC: G01J1/00

CPC classification number: G01J1/36 ,  G01J1/04 ,  G01J1/044 ,  G01J1/18

Abstract: A device for measuring the intensity of incoming light is disclosed. This device includes a rotatable light blocking unit which interrupts incident signal light at short regular intervals. The device also includes a light source which emits certain light different from the signal light while the signal light is interrupted by the block unit, and a measurement unit for measuring intensity values of the signal light and the certain light. A correction unit is provided for correcting the measured signal light intensity based on the certain light intensity. A calculator unit calculates a correction value through comparison of the intensity of the certain light to a reference value. The correction unit uses this correction value to correct the signal light intensity.

Abstract translation: 公开了一种用于测量入射光强度的装置。 该装置包括可旋转的光阻挡单元，其以规则间隔的短时间中断入射信号光。 该装置还包括在信号光被块单元中断时发出与信号光不同的特定光的光源，以及用于测量信号光和特定光的强度值的测量单元。 提供校正单元，用于基于特定光强度校正测量的信号光强度。 计算器单元通过将特定光的强度与参考值进行比较来计算校正值。 校正单元使用该校正值来校正信号光强度。

公开(公告)号：US20060232774A1

公开(公告)日：2006-10-19

申请号：US11279585

申请日：2006-04-13

Applicant: Joerg Kunze

Inventor： Joerg Kunze

IPC: G01N21/00

CPC classification number: G01J1/18 ,  G01J1/44

Abstract: A method for generating a digital output signal of a photosensor with at least one light-sensitive pixel is provided. An electrical intensity signal is generated by incident light, this being evaluated after or during an adjustable exposure time to generate a digital output signal. The exposure time is divided into time intervals. A time signal dependent on the number of time intervals that have passed during the exposure time is generated, and the intensity signal is compared with at least one adjustable reference value. The time signal is acquired as soon as the intensity signal reaches or exceeds or falls short of the reference value. The acquired time signal is evaluated as a digital output signal of the pixel. A structure of a photosensor for execution of the above method is also provided.

Abstract translation: 提供了一种用至少一个光敏像素产生光传感器的数字输出信号的方法。 通过入射光产生电强度信号，这是在可调节的曝光时间之后或期间进行评估以产生数字输出信号。 曝光时间分为时间间隔。 产生取决于在曝光时间期间经过的时间间隔数量的时间信号，并将强度信号与至少一个可调参考值进行比较。 一旦强度信号达到或超过或低于参考值，则获取时间信号。 所获取的时间信号被评估为像素的数字输出信号。 还提供了用于执行上述方法的光传感器的结构。