公开(公告)号：US09659513B2

公开(公告)日：2017-05-23

申请号：US11836104

申请日：2007-08-08

申请人： Paul O. Scheibe

发明人： Paul O. Scheibe

IPC分类号： G09G3/32 ,  G09G5/04 ,  G09G3/14 ,  G09G3/20

CPC分类号： G09G3/14 ,  G09G3/2003 ,  G09G2320/0666 ,  G09G2360/144

摘要： A method for use with an electronic signboard (e.g., an LED signboard) compensates psychovisual chromaticity shift due to ambient light. The method first measures a color of light reflected from the signboard. Based on the measurement a set of calorimetric equations defining the desired light to be perceived as being displayed by each pixel of the signboard are solved. The calorimetric equations are the additive color mixture of the ambient light and the light to be actually displayed by the pixel in the absence of ambient light. The calorimetric equations may be expressed in units of uniform color space. The solutions of the colorimetric equations are then used to control the light actually displayed by the pixel.

公开(公告)号：US09536463B2

公开(公告)日：2017-01-03

申请号：US11836110

申请日：2007-08-08

申请人： Paul O. Scheibe

发明人： Paul O. Scheibe

IPC分类号： G09G5/02 ,  G09G3/20 ,  G06F3/14 ,  G09G3/14

CPC分类号： G09G3/2003 ,  G06F3/1446 ,  G09G3/14 ,  G09G2320/0295 ,  G09G2320/0666 ,  G09G2330/10

摘要： A method to be used in a light emitting diode (LED) display provides a fault-healing capability. The method is applicable to a display having pixels made up of LEDs of four or more primary colors. For each pixel, the method receives a signal specifying a light intensity and a color to be displayed and detects if a fault exists in an LED of one or more of the primary colors. When no fault is detected, the LEDs of the pixel are driven with currents to achieve the specified light intensity and color. Otherwise, the LEDs of the pixel are driven in the primary colors that are without fault, using a combination of currents to achieve the specified light intensity and color. The combination of currents is derived by finding a position of the specified color in a chromaticity diagram and, using that position, deriving the currents to drive the LEDs in the primary colors without fault.

摘要翻译： 在发光二极管（LED）显示器中使用的方法提供故障修复能力。 该方法适用于具有由四个或更多原色的LED构成的像素的显示器。 对于每个像素，该方法接收指定要显示的光强度和颜色的信号，并且检测在一种或多种原色的LED中是否存在故障。 当没有检测到故障时，像素的LED由电流驱动，以达到指定的光强度和颜色。 否则，使用电流的组合来实现特定的光强度和颜色，像素的LED被驱动为没有故障的原色。 电流的组合通过在色度图中找到指定颜色的位置，并且使用该位置导出电流来驱动基本颜色的LED而没有故障而导出。

公开(公告)号：US20100057572A1

公开(公告)日：2010-03-04

申请号：US12198252

申请日：2008-08-26

申请人： Paul O. Scheibe ,  Jay B. Scheibe

发明人： Paul O. Scheibe ,  Jay B. Scheibe

IPC分类号： G06Q30/00

CPC分类号： G06Q30/02 ,  G06Q30/0264 ,  G06Q30/0267

摘要： An advertising support system includes an operation center, numerous display systems and one or more client services systems. The operation center is a platform that provides a collection of services and capabilities. For example, the operation center is responsible for assuring that the content is displayed on the display systems at required times and locations. The system may accommodate multiple operation centers in multiple geographical locations to provide failure recovery and to provide services over geographically diverse locations. A variety of services are provided by the operation center to support its operations and the display systems. For example, the operation center populates and maintains a current and archival database, which includes status, content, fault and maintenance logs, and other data of display systems. Numerous services may be provided through the client services systems. The client services systems access the operation center through an operation center interface to obtain data necessary to support various application that can be provided under a web service. Applications include content information retrieval by client and customers, and the general public, and administrative services (e.g., accounting, maintenance and engineering).

摘要翻译： 广告支持系统包括操作中心，众多显示系统和一个或多个客户端服务系统。 运营中心是提供服务和功能集合的平台。 例如，操作中心负责确保在所需时间和位置显示系统上显示内容。 该系统可以容纳多个地理位置的多个操作中心，以提供故障恢复并且在地理上不同的位置提供服务。 运营中心提供各种服务，以支持其运营和显示系统。 例如，操作中心填充并维护当前和归档数据库，其中包括状态，内容，故障和维护日志以及显示系统的其他数据。 可以通过客户端服务系统提供许多服务。 客户服务系统通过操作中心接口访问操作中心，以获取支持可在Web服务下提供的各种应用程序所需的数据。 应用包括客户和客户，公众以及行政服务（例如会计，维护和工程）的内容信息检索。

公开(公告)号：US08791890B2

公开(公告)日：2014-07-29

申请号：US13080480

申请日：2011-04-05

申请人： Paul O. Scheibe

发明人： Paul O. Scheibe

IPC分类号： G09G3/32

CPC分类号： G09G5/02 ,  G09G3/32 ,  G09G2320/0242

摘要： A method is applicable to a pixel of a graphical display that is formed by LEDs or LED strings, with the colors that can be displayed by the pixel (i.e., the color gamut) defined by an LED drive specification matrix A. The method displays a desired color at a chromaticity coordinates (xn, yn) and a luminous intensity Y by carrying out: (a) finding a maximum luminous intensity Ŷ and the associated LED drive vector {circumflex over (b)} for each of a collection of sample colors in the color gamut using a mathematical programming technique; and (b) calculating the LED drive vector for the desired color; and (c) displaying the color on the pixel using the calculated drive vector. In one implementation, the calculated LED drive vector is scaled using the expression b ^ ⁢ min ( Y Y ^ , 1 ) . (b) based on we sample colors. In addition, the method may create an interpolation function ƒ(x, y) for luminous intensity Ŷ and LED drive vector {circumflex over (b)} for colors outside of the sample colors. The interpolation function is used to evaluate ƒ(xn, yn) to obtain luminous intensity Ŷ and LED drive vector {circumflex over (b)} for the desired color. The interpolation function may be created off-line, and calculating the LED drive may be carried out in real time.

摘要翻译： 一种方法适用于由LED或LED串形成的图形显示的像素，其具有可以由LED驱动器指定矩阵A定义的像素（即，色域）显示的颜色。该方法显示一个 通过执行以下操作，在色度坐标（xn，yn）和发光强度Y处的期望颜色：（a）为样本颜色的集合中的每一个找到最大发光强度Ŷ和相关联的LED驱动矢量（对（b）}的回旋） 在色域中使用数学编程技术; 和（b）计算所需颜色的LED驱动矢量; 和（c）使用计算的驱动矢量在像素上显示颜色。 在一个实现中，使用表达式b ^ min（Y Y ^，1）来缩放计算出的LED驱动矢量。 （b）基于样品颜色。 此外，该方法可以为样本颜色之外的颜色创建用于发光强度Ŷ和LED驱动矢量（（b）}的内插函数ƒ（x，y）。 内插函数用于评估ƒ（xn，yn）以获得所需颜色的发光强度Ŷ和LED驱动矢量（绕（b）}）。 可以离线创建内插函数，并且可以实时地执行LED驱动器的计算。

公开(公告)号：US08243090B2

公开(公告)日：2012-08-14

申请号：US11836114

申请日：2007-08-08

申请人： Paul O. Scheibe

发明人： Paul O. Scheibe

IPC分类号： G09G5/02

CPC分类号： G09G3/14 ,  G06F3/1446 ,  G09G5/02 ,  G09G2320/0666 ,  G09G2360/144

摘要： A method maps a color specified using a smaller color gamut to a larger color gamut. Under that method, a map in a chromaticity diagram is constructed that provides a direction and a magnitude for a unit change in chroma for a specified pixel value in the chromaticity diagram. Using the magnitude and direction in the map, the specified color is mapped to a new pixel value corresponding to a predetermined shift in chromaticity. Preferably, the new pixel value preserves the hue of the specified color, and its luminance related to that of the specified color. Also, the new pixel value preferably has a greater color saturation than the specified pixel value.

摘要翻译： 一种方法将使用较小色域指定的颜色映射到较大的色域。 在该方法下，构建色度图中的映射，其为色度图中的指定像素值的色度的单位变化提供方向和幅度。 使用地图中的幅度和方向，将指定的颜色映射到对应于预定的色度偏移的新像素值。 优选地，新的像素值保留指定颜色的色调，并且其亮度与指定颜色的亮度相关。 此外，新像素值优选地具有比指定像素值更大的颜色饱和度。

公开(公告)号：US20090041341A1

公开(公告)日：2009-02-12

申请号：US11836114

申请日：2007-08-08

申请人： Paul O. Scheibe

发明人： Paul O. Scheibe

IPC分类号： G06K9/00 ,  G09G3/32

CPC分类号： G09G3/14 ,  G06F3/1446 ,  G09G5/02 ,  G09G2320/0666 ,  G09G2360/144

摘要： A method maps a color specified using a smaller color gamut to a larger color gamut. Under that method, a map in a chromaticity diagram is constructed that provides a direction and a magnitude for a unit change in chroma for a specified pixel value in the chromaticity diagram. Using the magnitude and direction in the map, the specified color is mapped to a new pixel value corresponding to a predetermined shift in chromaticity. Preferably, the new pixel value preserves the hue of the specified color, and its luminance related to that of the specified color. Also, the new pixel value preferably has a greater color saturation than the specified pixel value.

摘要翻译： 一种方法将使用较小色域指定的颜色映射到较大的色域。 在该方法下，构建色度图中的映射，其为色度图中的指定像素值的色度的单位变化提供方向和幅度。 使用地图中的幅度和方向，将指定的颜色映射到对应于预定的色度偏移的新像素值。 优选地，新的像素值保留指定颜色的色调，并且其亮度与指定颜色的亮度相关。 此外，新像素值优选地具有比指定像素值更大的颜色饱和度。

公开(公告)号：US20090040154A1

公开(公告)日：2009-02-12

申请号：US11836125

申请日：2007-08-08

申请人： Paul O. Scheibe

发明人： Paul O. Scheibe

IPC分类号： G09G3/32

CPC分类号： G09G3/14 ,  G09G3/2003 ,  G09G5/02 ,  G09G2300/0452 ,  G09G2320/0295 ,  G09G2320/0666 ,  G09G2320/0693 ,  G09G2330/10 ,  G09G2360/148

摘要： A method computes drive currents for LEDs in a pixel of a signboard to achieve a desired color at a desired luminous intensity. This method is particular applicable to a signboard having pixels made up of four (4) or more primary colors. The method selects a number of colors within a color gamut, and for each selected color, the method computes drive currents for the LEDs of each basis color, such that the resulting luminous intensity of the selected color is maximum. Using the computed drive currents, the method then scales the drive currents to achieve the desired luminous intensity in the desired color. The drive currents may be computed, for example, using a constrained maximization technique, such as linear programming. In one embodiment, the drive currents for each selected color are computed subject to the constraint that none of the drive currents is negative, and that their total is less than a predetermined value. In one embodiment, the selected color is expressed in the units of a linear color space.

摘要翻译： 一种方法计算招牌的像素中的LED的驱动电流，以达到期望的发光强度的所需颜色。 该方法特别适用于具有由四（4）个或更多原色组成的像素的招牌。 该方法选择色域内的多种颜色，并且对于每种选择的颜色，该方法计算每种基色的LED的驱动电流，使得所得颜色的所得发光强度最大。 使用计算的驱动电流，该方法然后缩放驱动电流以获得期望颜色的期望的发光强度。 可以例如使用约束最大化技术（例如线性规划）来计算驱动电流。 在一个实施例中，对于每个所选择的颜色的驱动电流被计算受限于没有驱动电流是负的，并且它们的总数小于预定值。 在一个实施例中，所选颜色以线性颜色空间为单位表示。

公开(公告)号：US09342266B2

公开(公告)日：2016-05-17

申请号：US11836122

申请日：2007-08-08

申请人： Paul O. Scheibe

发明人： Paul O. Scheibe

IPC分类号： G06F3/038 ,  G06F3/14 ,  G09G3/14 ,  G09G3/20

CPC分类号： G06F3/1446 ,  G09G3/14 ,  G09G3/2003 ,  G09G3/2014 ,  G09G2320/0295 ,  G09G2360/148

摘要： An apparatus dynamically circumvents faults in the light emitting diodes (LEDs) of a pixel in a graphical display. The LEDs are organized into groups of one or more LEDs. The apparatus includes drivers for generating a current to an associated group of LEDs of the pixel and fault detectors associated with each group of LEDs. The drivers may be driven, for example, by pulse-modulated signals specifying average currents for the groups of LEDs. The fault detectors each detect fault in an associated group of LEDs and asserts a fault signal when a fault is detected. In addition, an encoder is provided to receive the fault signals from the fault detectors and to provide signals encoding the faults detected and identifying the associated groups of LEDs. A controller that receives the encoded signals may adjust the driver signals for the groups of LEDs for which no fault is detected, in order to compensate for the detected faults.

摘要翻译： 一种装置动态地规避图形显示中像素的发光二极管（LED）中的故障。 LED被组织成一组或多个LED。 该装置包括用于产生到像素的相关联的LED组的电流的驱动器和与每组LED相关联的故障检测器。 驱动器可以例如通过指定LED组的平均电流的脉冲调制信号来驱动。 故障检测器每个检测到相关联的LED组中的故障，并在检测到故障时断言故障信号。 此外，提供编码器以从故障检测器接收故障信号，并且提供编码所检测到的故障的信号并识别相关联的LED组。 接收编码信号的控制器可以调整针对未检测到故障的LED组的驱动器信号，以补偿检测到的故障。

公开(公告)号：US20120256969A1

公开(公告)日：2012-10-11

申请号：US13080480

申请日：2011-04-05

申请人： Paul O. Scheibe

发明人： Paul O. Scheibe

IPC分类号： G09G5/10

CPC分类号： G09G5/02 ,  G09G3/32 ,  G09G2320/0242

摘要： A method is applicable to a pixel of a graphical display that is formed by LEDs or LED strings, with the colors that can be displayed by the pixel (i.e., the color gamut) defined by an LED drive specification matrix A. The method displays a desired color at a chromaticity coordinates (xn, yn) and a luminous intensity Y by carrying out: (a) finding a maximum luminous intensity Ŷ and the associated LED drive vector {circumflex over (b)} for each of a collection of sample colors in the color gamut using a mathematical programming technique; and (b) calculating the LED drive vector for the desired color; and (c) displaying the color on the pixel using the calculated drive vector. In one implementation, the calculated LED drive vector is scaled using the expression b ^  min ( Y Y ^ , 1 ) . (b) based on we sample colors. In addition, the method may create an interpolation function ƒ(x, y) for luminous intensity Ŷ and LED drive vector {circumflex over (b)} for colors outside of the sample colors. The interpolation function is used to evaluate ƒ(xn, yn) to obtain luminous intensity Ŷ and LED drive vector {circumflex over (b)} for the desired color. The interpolation function may be created off-line, and calculating the LED drive may be carried out in real time.

摘要翻译： 一种方法适用于由LED或LED串形成的图形显示的像素，其具有可以由LED驱动器指定矩阵A定义的像素（即，色域）显示的颜色。该方法显示一个 通过执行以下操作，在色度坐标（xn，yn）和发光强度Y处的期望颜色：（a）为样本颜色的集合中的每一个找到最大发光强度Ŷ和相关联的LED驱动矢量（对（b）}的回旋） 在色域中使用数学编程技术; 和（b）计算所需颜色的LED驱动矢量; 和（c）使用计算的驱动矢量在像素上显示颜色。 在一个实现中，使用表达式b ^ min min（Y Y ^，1）对计算的LED驱动矢量进行缩放。 （b）基于样品颜色。 此外，该方法可以为样本颜色之外的颜色创建用于发光强度Ŷ和LED驱动矢量（（b）}的内插函数ƒ（x，y）。 内插函数用于评估ƒ（xn，yn）以获得所需颜色的发光强度Ŷ和LED驱动矢量（绕（b）}）。 可以离线创建内插函数，并且可以实时地执行LED驱动器的计算。

公开(公告)号：US07768180B2

公开(公告)日：2010-08-03

申请号：US11836120

申请日：2007-08-08

申请人： Paul O. Scheibe

发明人： Paul O. Scheibe

IPC分类号： H01J7/24

CPC分类号： G09F9/33

摘要： An enclosure is provided for housing pixels of a graphical display. The enclosure provides one or more laminar structures at a first surface of the enclosure. The laminar structure may be made up of a first material of a predetermined thickness at the first surface and a second material in sufficiently close proximity with the first material to allow heat conduction. The second material preferably has a thermal conductivity greater than the thermal conductivity of the first material. Thermal conductors are provided in or attached to the second material in the laminar structure to conduct heat to a second surface of the enclosure. The first material may be, for example, a polymer. The second material may be, for example, a heat wick, a metal mesh or heat pipes. The second surface may be cooled by an air stream, which may also reduce humidity at the surface.

摘要翻译： 提供用于容纳图形显示器的像素的外壳。 外壳在外壳的第一表面提供一个或多个层状结构。 层状结构可以由第一表面的预定厚度的第一材料和与第一材料充分接近的第二材料构成以允许热传导。 第二材料优选具有大于第一材料的热导率的导热系数。 热导体设置在层状结构中或连接到层状结构中的第二材料中以将热量传导到外壳的第二表面。 第一种材料可以是例如聚合物。 第二种材料可以是例如热芯，金属网或热管。 第二表面可以被空气流冷却，这也可以降低表面的湿度。