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公开(公告)号：US07149001B1
公开(公告)日：2006-12-12
申请号：US09710026
申请日：2000-11-07
申请人： John E. Dolan , John C. Dalrymple
发明人： John E. Dolan , John C. Dalrymple
IPC分类号： H04N1/40
CPC分类号： H04N1/387 , H04N1/3247 , H04N1/32486 , H04N1/40 , H04N2201/0094 , H04N2201/329
摘要： A system for processing of a print ready data stream for an output device.
摘要翻译： 一种用于处理用于输出设备的打印就绪数据流的系统。
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公开(公告)号：US5867016A
公开(公告)日：1999-02-02
申请号：US936978
申请日：1997-09-25
CPC分类号： H02M5/2576
摘要： A duty cycle based AC power control method reduces objectionable voltage fluctuations at a frequency that causes "flicker" by shifting the frequency of actuations of controlled devices to frequencies significantly greater than and/or less than the flicker sensitive frequency. The frequency of actuations may be redistributed (1) by segmenting the devices to provide approximately equal power requirements per actuation, (2) by providing one-half cycle actuation pulses rather than one cycle actuation pulses, and/or (3) by spacing the actuations evenly over a given time period and forcing the aggregate demand to follow a slowly rising/falling envelope. The result is the minimization of power distribution at the flicker frequency.
摘要翻译： 基于占空比的AC功率控制方法通过将受控设备的致动频率移动到明显大于和/或小于闪烁敏感频率的频率，从而降低了引起“闪烁”的频率的令人不快的电压波动。 驱动频率可以重新分配（1）通过分段设备来提供大致相同的功率要求，每个致动，（2）通过提供半个周期的致动脉冲而不是一个周期的致动脉冲，和/或（3） 在一段给定的时间内均匀地驱动，迫使总需求跟随缓慢上升/下降的范围。 结果是在闪烁频率下功率分配最小化。
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公开(公告)号：US4951230A
公开(公告)日：1990-08-21
申请号：US403059
申请日：1989-09-05
IPC分类号： G06T15/80
摘要： A memory device having a plurality of addressable memory locations, each of which can be defined uniquely by an address having an X component and a Y component. The locations correspond respectively to grid points in a rectangular array at a pitch dX in the X direction and a pitch dY in the Y direction is loaded with data values at locations corresponding to grid points lying substantially on a line from a location (X.sub.0 +e*dX, Y.sub.0 +f*dY) to a location (X.sub.0 +p*dX, Y.sub.0 +q*dY), where X.sub.0, Y.sub.0) is a grid point and e, f, p, and q are integers. The memory device is loaded by a method which includes(a) setting s=floor (p/q)______________________________________ PInc = p - sq -q NInc = p -sq AErr.sub.0 = PInc ______________________________________ (b) for each value of i in the range from 0 to q-1, executing______________________________________ If AErr.sub.i >= 0 then X.sub.i+i : = X.sub.i + (s + 1)dX AErr.sub.i+1 : = AErr.sub.i + PInc else X.sub.i+1 : = X.sub.i + sdX AErr.sub.i+l : = AErr.sub.1 + NInc end If Y.sub.i+1 : = Y.sub.i + dY ______________________________________ and(c) loading the memory locations (X.sub.i+1 +u*dX, Y.sub.i+1), where u is an integer, for each value of i in the range from 0 to q-1.
摘要翻译： 具有多个可寻址存储器位置的存储器件，每个存储器位置可以由具有X分量和Y分量的地址唯一地定义。 这些位置分别对应于X方向上的间距dX的矩形阵列中的网格点，并且Y方向上的间距dY被加载在与从位置（X0 + e）基本上位于一条直线上的网格点相对应的位置处的数据值 * DX，Y0 + f * dY）到位置（X0 + p * dX，Y0 + q * dY），其中X0，Y0）是网格点，e，f，p和q是整数。 存储器件通过一种方法加载，该方法包括（a）为i的每个值设置s = floor（p / q）-PInc = p-sq -q -NInc = p -sq -AErr0 = PInc-（b） 从0到q-1的范围，执行 - 如果AErri> = 0 - then Xi + i：= Xi +（s + 1）dX -AErri + 1：= AErri + PInc-else Xi + 1：= Xi + sdX -AErri + l：= AErr1 + NInc -end如果-Yi + 1：= Yi + dY - （c）加载存储器位置（Xi + 1 + u * dX，Yi + 1），其中u是整数， 对于i的每个值在0到q-1的范围内。
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14.发明授权System and method for smoothing the lines and edges of an image on a raster-scan display 失效用于平滑光栅扫描显示器上图像的线条和边缘的系统和方法
公开(公告)号：US4672369A
公开(公告)日：1987-06-09
申请号：US549144
申请日：1983-11-07
摘要： In system and method for smooth line raster-scan display, a frame buffer containing a high resolution map of information of an image for display is read so as to furnish plural line stored information for each single line of the raster display. Display circuitry of the system receives the plural line stored information and varyingly weights same to furnish such single line Z-axis information (intensity control) for an X-Y display matrix, such as a CRT display terminal. Means are included in the system for display of the entire frame buffer content on a first fractional basis, e.g., a two thousand line resolution buffer to five hundred line raster. Selection circuitry of the system provides for reading out only a fraction of the frame buffer content, e.g., one-fourth or the five hundred lines thereof, on five hundred raster lines, thus providing true resolution zoom capability.
摘要翻译： 在用于平滑线光栅扫描显示的系统和方法中，读取包含用于显示的图像的信息的高分辨率图的帧缓冲器，以便为光栅显示的每一行提供多行存储信息。 系统的显示电路接收多行存储的信息，并且相同地改变重量，以为诸如CRT显示终端的X-Y显示矩阵提供单行Z轴信息（强度控制）。 手段被包括在系统中，用于在第一分数的基础上显示整个帧缓冲器内容，例如，二千行分辨率缓冲器到五百行光栅。 该系统的选择电路仅在五百条光栅线上仅读取帧缓冲器内容的一小部分，例如四分之一或五百条线，从而提供真正的分辨率缩放能力。
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公开(公告)号：US07995242B2
公开(公告)日：2011-08-09
申请号：US11756489
申请日：2007-05-31
申请人： John C. Dalrymple , Jon M. Speigle , Dana S. Smith
发明人： John C. Dalrymple , Jon M. Speigle , Dana S. Smith
IPC分类号： H04N1/40
CPC分类号： H04N1/608
摘要： A method for attenuation of near-neutral image colors is described. The pixel chroma is determined. A chroma control point is determined. A pixel color is shifted toward neutral. An imaging device that is configured for attenuation of near-neutral image colors is described. The imaging device includes a processor. The imaging processing device includes memory in electronic communication with the processor. Instructions are stored in the memory. The instructions are executable to determine pixel chroma. The instructions are also executable to determine a chroma control point. The instructions are further executable to shift a pixel color toward neutral.
摘要翻译： 描述了一种用于衰减近中性图像颜色的方法。 确定像素色度。 确定色度控制点。 像素颜色向中性偏移。 描述了被配置为衰减近似中性图像颜色的成像装置。 成像装置包括处理器。 成像处理装置包括与处理器进行电子通信的存储器。 指令存储在内存中。 该指令可执行以确定像素色度。 指令也可执行以确定色度控制点。 指令还可执行，以将像素颜色移向中性。
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公开(公告)号：US5243414A
公开(公告)日：1993-09-07
申请号：US737004
申请日：1991-07-29
CPC分类号： H04N1/6058 , H04N1/6022 , H04N1/603
摘要： A color processing system is provided that specifies color in a standardized, perceptually uniform color space and resolves color differences between input and/or output devices. The color processing system utilizes a color mapping techniques to adjust the results of color mapping to fit the color gamut of the output device. The color processing system may be implemented as a color rendering dictionary in a PostScript.RTM. Level 2 interpreter. An additional feature involves adaptation of PostScript.RTM. Level 1 applications to take advantage of the improved color processing system and PostScript.RTM. Level 2 flexibility.
摘要翻译： 提供了一种颜色处理系统，其指定标准化，感知统一的颜色空间中的颜色并且分辨输入和/或输出设备之间的色差。 颜色处理系统利用颜色映射技术来调整颜色映射的结果以适应输出设备的色域。 颜色处理系统可以在PostScript TM Level 2解释器中实现为显色字典。 一个额外的功能包括适应PostScript TM 1级应用程序，以利用改进的颜色处理系统和PostScript TM 2级灵活性。
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17.发明授权
公开(公告)号：US5185599A
公开(公告)日：1993-02-09
申请号：US555979
申请日：1990-07-23
摘要： A high performance graphics display system for use as an engineering workstation includes a compact method of generating vectors and transmitting addresses for same from a picture processor to frame buffer control circuitry for writing or reading pixel values along the vector in the frame buffer. The system uses a multiplexed address/data bus. Off-screen memory in communication with the picture processor is used to store pixel data read along vectors in the frame buffer preceding writing a vector so that the original data can be restored when the written vector is moved or removed. Vectors are encoded by the picture processor as a first word containing the address of the beginning point of the vector and major axis and X and Y direction bits to indicate the vector's direction. A second word includes a minor axis bit, indicating whether the next pixel to be written or read is on or off the major axis, in the direction indicated for such axis in the first word. The first word also includes a hesitate bit indicating whether the first pixel of a vector is to be written or read. The system is configured in pipe stages with a FIFO at each stage controlled by a hold signal that is pipelined from downstream stages in a direction opposite the pipelined data flow.
摘要翻译： 用作工程工作站的高性能图形显示系统包括一种紧凑的方法，用于产生矢量并将图像处理器的地址从图像处理器发送到帧缓冲器控制电路，用于沿着帧缓冲器中的向量写入或读取像素值。 系统使用复用的地址/数据总线。 与图像处理器通信的离屏存储器用于存储在写入向量之前沿着帧缓冲器中的向量读取的像素数据，使得当写入的向量被移动或移除时可以恢复原始数据。 向量由图像处理器编码为包含向量和长轴的起始点的地址的第一个字，以及指示向量方向的X和Y方向位。 第二个字包括一个短轴位，指示要写入或读取的下一个像素是否在长轴上或在第一个字中针对该轴指示的方向上。 第一个字还包括一个犹豫的位，指示矢量的第一个像素是要被写入还是读取。 该系统配置在管道阶段，每个阶段的FIFO由保持信号控制，保持信号从流水线数据流的相反方向从下游阶段流水线化。
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18.发明授权Method and apparatus for representing three-dimensional color data in a one-dimensional reference system 失效用于在一维参考系统中表示三维颜色数据的方法和装置
公开(公告)号：US5181014A
公开(公告)日：1993-01-19
申请号：US355866
申请日：1989-05-22
申请人： John C. Dalrymple , Scott W. Bigger
发明人： John C. Dalrymple , Scott W. Bigger
IPC分类号： G09G5/06
CPC分类号： G09G5/06
摘要： A method and apparatus are disclosed for representing and displaying the true (actual) color of an image in an index color system. The user specifies the number of color levels necessary to represent the range of displayable colors, and specifies the color (the red, green, blue primary color values) desired for an image. From the specified number, the apparatus calculates RGB (red, green, blue) color values, and stores them in memory in a manner suitable for referencing by an index type address. From the specified color, the apparatus calculates an index suitable for referencing the desired RGB color values from the stored color values. The apparatus comprises a keyboard and a port to a host computer for inputting index color data and true color data, a processing means coupled to the keyboard and/or host computer for producing index-type data from true color data, a memory means for storing the input data and data produced by the processing means, and a display means for displaying stored data.
摘要翻译： 公开了用于在索引颜色系统中表示和显示图像的真实（实际）颜色的方法和装置。 用户指定表示可显示颜色范围所需的色彩数量，并指定图像所需的颜色（红色，绿色，蓝色基色值）。 从指定的数字，设备计算RGB（红色，绿色，蓝色）颜色值，并以适合于索引类型地址引用的方式将它们存储在存储器中。 从指定的颜色，该装置根据存储的颜色值计算适合于参考所需RGB颜色值的索引。 该装置包括键盘和主计算机的端口，用于输入索引颜色数据和真彩色数据，耦合到键盘和/或主计算机的处理装置，用于从真彩色数据产生索引类型数据;存储装置，用于存储 由处理装置产生的输入数据和数据，以及显示存储数据的显示装置。
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公开(公告)号：US5142617A
公开(公告)日：1992-08-25
申请号：US263294
申请日：1988-10-27
摘要： A method and apparatus for tiling a display area defined by lines joining vertices with a surface normal vector associated with each vertex whereby the display area is subdivided into sub-display areas by calculating additional vertices and surface normal vectors by interpolation and rendering a given sub-display area by calculating intensity values at its vertices and tiling its area by linear interpolation of the calculated vertex intensity values.
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20.发明授权Digital vector generation with velocity correction by tabulation of counter control signals 失效通过计数器控制信号列表的速度校正的数字矢量生成
公开(公告)号：US4791595A
公开(公告)日：1988-12-13
申请号：US884572
申请日：1986-07-11
申请人： John C. Dalrymple
发明人： John C. Dalrymple
摘要： Method and apparatus for drawing vectors on limited precision display devices in amounts of time approximately proportional to the vector's geometric length. Vectors are drawn by a series of strokes. Each stroke is a series of counter control signals, each signal representing a vertical, horizontal, or diagonal movement of the CRT electron beam between adjacent addressable screen points. The counter control signals making up the strokes are stored on a look-up table.
摘要翻译： 在有限精密显示设备上绘制矢量的方法和装置，其时间量大约与矢量的几何长度成比例。 向量由一系列笔画绘制。 每个行程是一系列计数器控制信号，每个信号表示CRT电子束在相邻的可寻址屏幕点之间的垂直，水平或对角运动。 构成笔画的计数器控制信号存储在查找表中。
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