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公开(公告)号：US06526144B2
公开(公告)日：2003-02-25
申请号：US09088556
申请日：1998-06-02
申请人： Vishal Markandey , Alan T. Wetzel , Fred J. Shipley , Roy I. Edenson , Ryan R. Middleton , William E. Cammack
发明人： Vishal Markandey , Alan T. Wetzel , Fred J. Shipley , Roy I. Edenson , Ryan R. Middleton , William E. Cammack
IPC分类号： H04L900
CPC分类号： H04N21/43632 , H04N5/913 , H04N7/1675 , H04N21/4367 , H04N2005/91364
摘要： A method of communicating from a transmitter to a receiver over a communication medium. For the transmitter, the method includes the step of formatting data into a data stream to be communicated across the communications medium. This data stream comprises a plurality of headers (PACK HEADER). Moreover, for each of the plurality of headers, the method performs two steps. First, the method modifies information encoded by the header by performing a bitwise logical operation between selected bits of the header (B) with a predetermined bit pattern (A). Second, the method transmits the plurality of headers on to the communications medium. For the receiver, the method includes the step of receiving the plurality of headers from the communications medium. Additionally, for each of the received headers, the receiver recovers the information encoded by the header.
摘要翻译： 一种通过通信介质从发射机到接收机进行通信的方法。 对于发射机，该方法包括将数据格式化成要在通信介质上传送的数据流的步骤。 该数据流包括多个头部（PACK HEADER）。 此外，对于多个头部中的每一个，该方法执行两个步骤。 首先，该方法通过在标题（B）的选定位之间以预定位模式（A）执行按位逻辑运算来修改由标题编码的信息。 第二，该方法将多个头部传送到通信介质。 对于接收机，该方法包括从通信介质接收多个报头的步骤。 此外，对于每个接收的报头，接收机恢复由报头编码的信息。
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公开(公告)号：US20050188182A1
公开(公告)日：2005-08-25
申请号：US11114549
申请日：2005-04-26
申请人： David Hoyle , Vishal Markandey , Lewis Nardini
发明人： David Hoyle , Vishal Markandey , Lewis Nardini
IPC分类号： G06F15/00
CPC分类号： G06F9/30032 , G06F9/30036 , G06F9/3828 , G06F9/3853 , G06F9/3891
摘要： A data processing system is provided with a digital signal processor that has a set of instructions for intermingling byte fields selected from a selected pair of source operands and storing the ordered result in a selected destination register. A first 32-bit operand is treated as four 8-bit fields while a second 32-bit operand is treated as four 8-bit fields. Intermingling circuitry is operable to form an ordered result in accordance with each one of the set of byte intermingling instructions. An instruction is provided that performs a shift right and byte merge operation. Another instruction is provided that performs a shift left and byte merge operation. Another instruction is provided that perform a byte swap operation. A set of instructions are provided that perform various byte packing and unpacking operations.
摘要翻译： 数据处理系统具有数字信号处理器，该数字信号处理器具有一组指令，用于混合从所选择的一对源操作数中选择的字节字段，并将所选择的结果存储在所选择的目标寄存器中。 第一个32位操作数被视为四个8位字段，而第二个32位操作数被视为四个8位字段。 混合电路可操作以根据该组字节混合指令中的每一个形成有序结果。 提供执行右移和字节合并操作的指令。 另外提供了执行左移和字节合并操作的指令。 提供另一个执行字节交换操作的指令。 提供了一组执行各种字节打包和解包操作的指令。
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公开(公告)号：US6124900A
公开(公告)日：2000-09-26
申请号：US20326
申请日：1998-02-06
CPC分类号： H04N5/21
摘要： A method and structure for producing a noise reduced video signal. The data corresponding to a pixel in a first frame is differenced with signal corresponding to that pixel in a second frame. The difference signal is then recursively noise filtered, clipped and a non-linear function is applied. The filtered and clipped difference signal is then multiplied by the difference signal and added back into the original data. The resulting data is motion adapted and noise reduced, and is used in converting from interlace to progressive scan. The method can be integrated with scaling processes as well.
摘要翻译： 一种用于产生降噪视频信号的方法和结构。 与第一帧中的像素相对应的数据与第二帧中与该像素对应的信号差分。 然后对差分信号进行递归噪声滤波，剪切并应用非线性函数。 然后将经滤波和限幅的差分信号乘以差分信号并将其加回原始数据。 所得数据运动适应和降噪，并用于从隔行扫描到逐行扫描。 该方法也可以与缩放过程集成。
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公开(公告)号：US5864367A
公开(公告)日：1999-01-26
申请号：US701902
申请日：1996-08-23
CPC分类号： H04N7/0137 , H04N7/007 , H04N7/012 , H04N7/0122
摘要： An improved processing system (10) for video signal processing. The system uses only one newer version scan-line video processor (12) at nearly maximum efficiency, with a digital input that is at a common rate. The processor performs motion detection, motion adaptive scan conversion, horizontal and vertical scaling and applies sharpness control within a limited amount of instruction space, and applies these functions to four different video formats.
摘要翻译： 一种用于视频信号处理的改进的处理系统（10）。 该系统以几乎最大的效率仅使用一个较新版本的扫描线视频处理器（12），其数字输入处于通用速率。 处理器执行运动检测，运动自适应扫描转换，水平和垂直缩放，并在有限量的指令空间内应用清晰度控制，并将这些功能应用于四种不同的视频格式。
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公开(公告)号：US5751379A
公开(公告)日：1998-05-12
申请号：US725719
申请日：1996-10-04
CPC分类号： G09G3/2007 , G09G3/2037 , H04N5/7458 , G09G2320/0266 , G09G3/2018 , G09G3/346 , H04N2005/7466
摘要： A method of pulse width modulation using a spatial light modulator (40) with a finite transition time. The method uses m bits per sample to digitize the incoming data, but apportions the LSB times for pulse width modulation based upon m-1 bits. The current video frame displays all of the bits for each sample, except for the LSBs for each sample. The next video frame displays all of the bits for each sample, adding one more LSB for dividing up the frame time. The first frame could use either the additional LSB time and display no data, or it could use only that number of LSB times it needs. In the latter, the system will have to adjust to different partitions of the frame time for alternating frames. The system includes a spatial light modulator (40), a memory (42), a formatter (48), a sequence controller (44) and a toggle circuit (46), to perform this method.
摘要翻译： 一种使用具有有限转换时间的空间光调制器（40）进行脉宽调制的方法。 该方法使用每个采样的m位数字化输入数据，但是基于m-1位分配用于脉宽调制的LSB时间。 当前视频帧显示每个样本的所有位，除了每个样本的LSB。 下一个视频帧显示每个样本的所有位，并添加一个LSB以分割帧时间。 第一帧可以使用附加的LSB时间并且不显示任何数据，也可以仅使用其需要的LSB次数。 在后者中，系统将必须调整到不同分区的帧时间的交替帧。 该系统包括空间光调制器（40），存储器（42），格式化器（48），序列控制器（44）和切换电路（46），以执行该方法。
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6.发明授权Method of reducing the visual impact of defects present in a spatial light modulator display 失效降低存在于空间光调制器显示器中的缺陷的视觉冲击的方法
公开(公告)号：US5504504A
公开(公告)日：1996-04-02
申请号：US275057
申请日：1994-07-13
申请人： Vishal Markandey , Robert J. Gove
发明人： Vishal Markandey , Robert J. Gove
CPC分类号： G09G3/20 , G02B26/0841 , G09G2320/02 , G09G2330/10 , G09G3/346
摘要： A method and display system for reducing the visual impact of defects present in an image display. The display includes an array of pixels, each non-defective pixel being selectively operable in response to input data by addressing facilities between an "on" state, whereat light is directed onto a viewing surface, and an "off" state, whereat light is not directed onto the viewing surface. A defect is the result of a defective pixel which does not respond to the input data presented by the addressing facilities, typically by continuously remaining in its "on" or "off" state. Each defective pixel is immediately surrounded by a first ring of compensation pixels adjacent to the central defective pixel. The compensation pixels are immediately surrounded by a second ring of reference pixels spaced from the central defective pixel. The addressing circuit-determined value of at least one compensation pixel in the first ring surrounding the defective pixel is changed to a corrective value, in order to reduce the visual impact of the defect.
摘要翻译： 一种用于减少存在于图像显示器中的缺陷的视觉冲击的方法和显示系统。 该显示器包括像素阵列，每个无缺陷像素通过在“开”状态之间寻址设备来选择性地响应于输入数据而被选择性地工作，其中光被引导到观看表面上，而“关” 不指向观察表面。 缺陷是不符合寻址设施提供的输入数据的缺陷像素的结果，通常是通过连续保持在“开”或“关”状态。 每个缺陷像素被邻近中心缺陷像素的第一补偿像素环包围。 补偿像素由与中心缺陷像素间隔开的第二参考像素环立即包围。 围绕缺陷像素的第一环中的至少一个补偿像素的寻址电路确定值被改变为校正值，以便减少缺陷的视觉冲击。
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公开(公告)号：US06229520B1
公开(公告)日：2001-05-08
申请号：US09008170
申请日：1998-01-16
IPC分类号： G09G500
CPC分类号： G09G5/391 , G09G2340/0407 , H04N5/46 , H04N7/0122 , H04N9/641
摘要： A method for scaling graphics image data. The method operates on data that is in red-green-blue format. Each component is filtered to extract high pass information and then that information is scaled in amplitude. Finally, the amplitude scaled information is recombined with the original components of the image data. The filtering and amplitude scaling sharpen the scaled image, producing a clearer picture.
摘要翻译： 一种缩放图形图像数据的方法。 该方法对红 - 绿 - 蓝格式的数据进行操作。 每个组件被过滤以提取高通信息，然后该信息以幅度缩放。 最后，幅度缩放信息与图像数据的原始分量重组。 滤波和幅度缩放可以缩放缩放图像，产生更清晰的图像。
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公开(公告)号：US06215913B1
公开(公告)日：2001-04-10
申请号：US09410865
申请日：1999-10-01
IPC分类号： G06K940
CPC分类号： H04N9/69 , G09G3/2007 , G09G3/2062 , G09G3/34 , G09G3/346 , G09G2320/0276 , H04N5/14 , H04N5/202 , H04N5/21 , H04N19/527 , H04N19/86
摘要： A method and device for producing an accurate approximation of a digital input word translated by a monotonic transfer function. The digital word is translated into a non-monotonic output word comprised of a closest-approximation component and an error component. The error component is zero for regions in which each consecutive input word produces a unique closest-approximation component. In regions in which each consecutive input word produces the same closest-approximation component, the error signal represents the number of consecutive input words which produce the same closest-approximation component, and the position within that run of consecutive input words occupied by the present input word.
摘要翻译： 一种用于产生由单调传递函数翻译的数字输入字的精确近似的方法和装置。 数字字被转换为由最近近似分量和误差分量组成的非单调输出字。 对于每个连续输入字产生独特的最近近似分量的区域，误差分量为零。 在每个连续输入字产生相同最近近似分量的区域中，误差信号表示产生相同最近近似分量的连续输入字的数量，以及由当前输入占据的连续输入字的运行位置 字。
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公开(公告)号：US6040876A
公开(公告)日：2000-03-21
申请号：US729121
申请日：1996-10-11
IPC分类号： H04N9/74 , G06T5/00 , G06T11/00 , G06T11/20 , G09G3/20 , H04N5/44 , H04N9/64 , H04N9/69 , H04N5/21
CPC分类号： H04N9/643 , H04N9/69 , G09G2320/0276 , G09G3/2051 , G09G5/02 , H04N5/4401
摘要： A method and system for reducing the effects of false contouring and reducing color shading artifacts. An image signal 102 is dithered by the addition of a small noise signal from a noise generator 500. The added noise signal breaks up the edges of homogenous blocks of pixels, causing the created image to appear to have a smooth transition from one region to the next. The image dithering is especially useful in digital color image displays where processing performed on the chrominance portion of the image signal often causes quantization errors which lead to sharp transitions between similar shades when the input image included a smooth transition.
摘要翻译： 一种用于减少假轮廓的影响并减少色彩遮蔽伪像的方法和系统。 图像信号102通过从噪声产生器500中添加小的噪声信号来抖动。附加的噪声信号破坏了同质的像素块的边缘，导致所创建的图像看起来具有从一个区域到 下一个。 图像抖动在数字彩色图像显示器中特别有用，其中对图像信号的色度部分执行的处理通常导致当输入图像包括平滑过渡时导致类似色调之间的急剧转变的量化误差。
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公开(公告)号：US5748250A
公开(公告)日：1998-05-05
申请号：US533409
申请日：1995-09-25
申请人： Vishal Markandey , Robert J. Gove
发明人： Vishal Markandey , Robert J. Gove
CPC分类号： H04N7/012 , H04N5/145 , H04N5/7458 , H04N2005/7466
摘要： A line generator (31) for receiving fields of pixel data sampled from a video input signal and for generating additional lines of pixel data so that the display frames will have more lines than the fields. The line generator (31) has a motion detector (31a) that determines, on a pixel by pixel basis, whether some part of the current field is in motion. A motion signal from the motion detector (31a) is used to select between outputs of two or more pixel generators (31b, 31c). One of the pixel generators (31b) provides pixel values that are better suited for display when the image is not in motion. The other pixel generator (31c) provides pixel values that are better suited for display when the image is in motion.
摘要翻译： 一种线生成器（31），用于接收从视频输入信号采样的像素数据的场，并产生附加的像素数据行，使得显示帧将具有比场多的行。 线发生器（31）具有运动检测器（31a），该运动检测器（31a）逐像素地确定当前场的某些部分是否运动。 来自运动检测器（31a）的运动信号用于在两个或更多个像素发生器（31b，31c）的输出之间进行选择。 像素发生器（31b）之一提供当图像不运动时更适合于显示的像素值。 另一像素生成器（31c）提供当图像运动时更适合于显示的像素值。
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