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11. 发明授权

US5088053A Memory controller as for a video signal processor 失效
标题翻译：内存控制器作为视频信号处理器
公开(公告)号：US5088053A
公开(公告)日：1992-02-11
申请号：US121025
申请日：1987-11-16
申请人： David L. Sprague , Allen H. Simon , Alfred Kwan
发明人： David L. Sprague , Allen H. Simon , Alfred Kwan
IPC分类号： H04N5/907 , G06F3/153 , G06F13/00 , G06F13/18 , G06F13/30 , G06T1/60 , G06T9/00 , H04N7/24 , H04N7/32
CPC分类号： G06F13/18 , H04N19/50 , H04N5/907 , H04N7/24
摘要： A video signal processing system includes a memory for holding digital data, input and output channel circuitry for reading data from and writing data to the memory and processing circuits for processing data read from the memory to produce data to be written to the memory. Each of the input and output channels produces two types of memory request signals, a normal request signal and an urgent request signal. The normal request signal is produced to gain access to the data in the memory for normal read and wire operations. The urgent request signal is produced to access the memory when the processing circuitry is in a paused state waiting either to obtain data from the input channel or to provide data to the output channel. The normal read and write request signals are handled with substantially equal priority by first scheduling circuitry. The urgent request signals are handled by second scheduling circuits according to a fixed priority scheme. The use of the second scheduling circuitry disables the first scheduling circuitry.
摘要翻译：视频信号处理系统包括用于保存数字数据的存储器，用于从存储器读取数据并将数据写入存储器的输入和输出通道电路，以及用于处理从存储器读取的数据的处理电路，以产生要写入存储器的数据。每个输入和输出通道产生两种类型的存储器请求信号，一个正常请求信号和一个紧急请求信号。产生正常请求信号以获得对存储器中的数据的访问以进行正常读取和有线操作。当处理电路处于暂停状态等待从输入通道获取数据或向输出通道提供数据时，产生紧急请求信号以访问存储器。正常的读写请求信号通过第一调度电路基本相同的优先级来处理。紧急请求信号根据固定优先级方案由第二调度电路处理。第二调度电路的使用禁用第一调度电路。

12. 发明授权

US4967196A Apparatus for decoding variable-length encoded data 失效
标题翻译：用于解码可变长度编码数据的装置
公开(公告)号：US4967196A
公开(公告)日：1990-10-30
申请号：US175993
申请日：1988-03-31
申请人： David L. Sprague , Allen H. Simon
发明人： David L. Sprague , Allen H. Simon
IPC分类号： H03M7/40 , H03M7/42
CPC分类号： H03M7/425
摘要： Digital image data is encoded using a variable-length code which is described by a group of parameter values. Each parameter value describes a set of code values; each code value corresponds to a possible value of the data which is to be encoded. When the data is encoded, the parameter values are appended to the encoded data. A decoder stores the parameter values into a memory and then combines data values derived from the encoded data with parameter values from the memory to generate decoded data values. Each code word includes a prefix which indicates a number of successive parameter values which are to be summed, and a population index which is to be added to the summed parameter values to produce a decoded data value.
摘要翻译：使用由一组参数值描述的可变长度代码对数字图像数据进行编码。每个参数值描述一组代码值; 每个代码值对应于要被编码的数据的可能值。当数据被编码时，参数值被附加到编码数据。解码器将参数值存储到存储器中，然后将从编码数据导出的数据值与来自存储器的参数值组合以产生解码数据值。每个代码字包括指示要被求和的连续参数值的数量的前缀以及将被加到相加的参数值以产生解码的数据值的总体索引。

13. 发明授权

US5384904A Image scaling using real scale factors 失效
标题翻译：使用实际比例因子的图像缩放
公开(公告)号：US5384904A
公开(公告)日：1995-01-24
申请号：US987725
申请日：1992-12-08
申请人： David L. Sprague , Michael Keith
发明人： David L. Sprague , Michael Keith
IPC分类号： G06T3/40 , G06F15/60
CPC分类号： G06T3/4007
摘要： A method for performing scaling of a video image uses a noninteger scale factor. The scaling using a series of images scaled according to integer powers of two. An integer scale factor is applied to the image to be scaled in order to provide a series of scaled images. A determination is made which scaled image is the closest image to the one corresponding to the fractional scale factor. The scaled image selected in this manner is then operated upon using an interpolation to obtain the value corresponding to the fractional scale factor. Alternatively, the two scaled images which are closest to the image corresponding to the fractional scale factor may be selected and an interpolation operation or an averaging operation of the two scaled images may be performed to obtain the factional scale image. The scaled images may be predetermined during off-line operations so that a plurality of image selections may be performed upon the same set of predetermined scaled images.
摘要翻译：用于执行视频图像缩放的方法使用非整数比例因子。使用一系列图像进行缩放，该图像根据二的整数幂进行缩放。整数比例因子被应用于要缩放的图像，以便提供一系列缩放的图像。确定缩放图像是与分数比例因子相对应的图像的最接近的图像。然后，使用插补来操作以这种方式选择的缩放图像，以获得与分数比例因子对应的值。或者，可以选择最接近于分数比例因子的图像的两个缩放图像，并且可以执行两个缩放图像的内插操作或平均化操作以获得派系缩放图像。缩放图像可以在离线操作期间被预先确定，使得可以在相同的一组预定缩放图像上执行多个图像选择。

14. 发明授权

US07320105B1 Data display using multicolumn scrolling 有权
标题翻译：数据显示使用多列滚动
公开(公告)号：US07320105B1
公开(公告)日：2008-01-15
申请号：US09371716
申请日：1999-08-09
申请人： Igor Sinyak , David L. Sprague
发明人： Igor Sinyak , David L. Sprague
IPC分类号： G06F15/00 , G06F17/00
CPC分类号： G06F3/0485
摘要： Apparatus, software and method for displaying line-formatted materials in multiple columns of a screen display and providing for scrolling through the materials such that lines spill from one column to another, are disclosed. The columns form a display area for display of contiguous lines of the line-formatted materials, wherein diagonally opposite ends of the rightmost and leftmost columns define the starting and ending lines of the display area, such that when scrolling through line-formatted materials the lines flow into and out of the display area at the starting and ending lines. In another embodiment, Scripting language encoded line-formatted materials are displayed under the control of a web browser using the scrollable columns. In another embodiment, line-formatted materials are encoded with one or more Scripting language codes that specify to a web browser that the line-formatted materials are to be displayed in scrollable columns.
摘要翻译：公开了用于在屏幕显示器的多列中显示线条格式的材料并提供滚动通过材料使得线从一列溢出到另一列的装置，软件和方法。列形成用于显示线格式材料的连续线的显示区域，其中最右侧和最左侧列的对角线相对端限定显示区域的开始和结束行，使得当通过线条格式的材料滚动线流入和流出显示区域的开始和结束行。在另一个实施例中，脚本语言编码的行格式的材料在web浏览器的控制下使用可滚动列显示。在另一个实施例中，线条格式的材料用一个或多个脚本语言代码进行编码，该脚本语言代码指定到web浏览器，行格式的材料将被显示在可滚动列中。

15. 发明授权

US5699458A Efficient browsing of encoded images 失效
标题翻译：有效浏览编码图像
公开(公告)号：US5699458A
公开(公告)日：1997-12-16
申请号：US496539
申请日：1995-06-29
申请人： David L. Sprague
发明人： David L. Sprague
IPC分类号： H04N7/30
CPC分类号： H04N19/60 , H04N19/30
摘要： A computer-implemented method and system for browsing encoded images. According to a preferred embodiment, at least one image is encoded with an encoding system to provide at least one encoded image. The encoding includes transforming images of the at least one image in accordance with a transform to provide a plurality of transform coefficients. A subset of the plurality of transform coefficients corresponding to a selected image is transmitted to a remote computer system, wherein the subset of the plurality of transform coefficients corresponds to a low quality version of the selected image.
摘要翻译：用于浏览编码图像的计算机实现的方法和系统。根据优选实施例，至少一个图像用编码系统编码以提供至少一个编码图像。编码包括根据变换来变换至少一个图像的图像以提供多个变换系数。对应于所选择的图像的多个变换系数的子集被发送到远程计算机系统，其中多个变换系数的子集对应于所选图像的低质量版本。

16. 发明授权

US5469222A Non-linear pixel interpolator function for video and graphic processing 失效
标题翻译：用于视频和图形处理的非线性像素内插器功能
公开(公告)号：US5469222A
公开(公告)日：1995-11-21
申请号：US85240
申请日：1993-06-30
申请人： David L. Sprague
发明人： David L. Sprague
IPC分类号： G06T3/00 , H04N5/14 , H04N9/74
CPC分类号： G06T3/4007 , H04N5/14
摘要： A method and pixel interpolation system for non-linear interpolation of images having a plurality of input pixels and pixel positions. According to a preferred embodiment of the invention, a plurality of pairs of input pixels and a sequence of corresponding interpolation weights are received with a one-dimensional interpolator. A plurality of sequential weighted sums of the pairs of input pixels are provided at a plurality of the pixel positions in accordance with the interpolation weights. The sequence of interpolation weights is provided, where differences between pairs of successive interpolation weights of the sequence of interpolation weights differ. The sequence of interpolation weights is applied to the one-dimensional interpolator. The present invention may be utilized, for example, for performing the operations of shifting two-dimensional video images where the shifting operations are performed with non-uniform scaling in at least one of the dimensions, and may also be used when shifting an image with non-uniform scaling by a fractional pixel distance.
摘要翻译：一种用于具有多个输入像素和像素位置的图像的非线性插值的方法和像素插值系统。根据本发明的优选实施例，使用一维内插器接收多对输入像素和对应的内插权重序列。根据插值权重，在多个像素位置处提供输入像素对的多个顺序加权和。提供插值权重序列，其中插值权重序列的连续插值权重之间的差异不同。内插权重序列应用于一维内插器。例如，本发明可以用于执行移动二维视频图像的操作，其中在至少一个维度上以非均匀缩放来执行移位操作，并且还可以在用通过分数像素距离进行非均匀缩放。

17. 发明授权

US4740832A Image storage using separately scanned luminance and chrominance variables 失效
标题翻译：图像存储使用单独扫描的亮度和色度变量
公开(公告)号：US4740832A
公开(公告)日：1988-04-26
申请号：US918275
申请日：1986-10-14
申请人： David L. Sprague , Nicola J. Fedele , Lawrence D. Ryan
发明人： David L. Sprague , Nicola J. Fedele , Lawrence D. Ryan
IPC分类号： G09G5/02 , H04N5/907 , H04N9/87 , H04N9/00
CPC分类号： G09G5/02 , H04N5/907 , H04N9/87
摘要： Computer main memory is used for storing relatively densely sampled luminance information concerning a television display and for storing relatively sparsely sampled chrominance information concerning the same television display. The relatively densely sampled luminance information is read out in substantially real-time from computer main memory during line trace intervals in the television display. The relatively sparsely sampled chrominance information is read out of computer main memory in advanced and compressed time during selected line retrace intervals in the television display.
摘要翻译：计算机主存储器用于存储关于电视显示器的相对密集采样的亮度信息，并用于存储关于相同电视显示器的相对稀疏采样的色度信息。相对密集采样的亮度信息在电视显示器中的线路间隔期间从计算机主存储器基本上实时地读出。相对稀疏采样的色度信息在电视显示器中的选定行回扫间隔期间以高级和压缩时间从计算机主存储器中读出。

18. 发明授权

US06229790B1 Channel switching control for a communication system 失效
标题翻译：通信系统的通道切换控制
公开(公告)号：US06229790B1
公开(公告)日：2001-05-08
申请号：US09015191
申请日：1998-01-29
申请人： Alexis M. Butrym , Michael W. Goodwin , Kyoo J. Lee , David L. Sprague , Stuart Warmink
发明人： Alexis M. Butrym , Michael W. Goodwin , Kyoo J. Lee , David L. Sprague , Stuart Warmink
IPC分类号： G06F1100
CPC分类号： H04N21/4348 , H04J1/12 , H04J1/16 , H04J3/1694 , H04J4/00 , H04L41/12 , H04N7/17309 , H04N7/22 , H04N21/235 , H04N21/2385 , H04N21/435 , H04N21/84
摘要： A central controller, such as an RF distribution shelf (RFDS) of a hybrid fiber/coax (HFC) access system, keeps track of the different channels assigned to different remote units, such as the network interface units (NIUs) of the HFC system. Information about the different channel assignments (e.g., for upstream channels) is broadcast to the remote units as part of the overhead bits in each of the downstream channels. Each remote unit monitors the broadcast messages and, over time, updates its own version of the data structure containing the channel assignments, as appropriate. In one embodiment, the central controller also transmits a second type of broadcast message indicating when changes in the channel assignments occur. In this embodiment, the second type of broadcast message is transmitted more frequently than the entire data structure containing the channel assignments, and the remote units only update their copies of the data structure when the second type of broadcast message indicates a change in the data structure.
摘要翻译：诸如混合光纤/同轴（HFC）接入系统的RF分配架（RFDS）的中央控制器跟踪分配给不同远程单元的不同信道，例如HFC系统的网络接口单元（NIU）。关于不同信道分配（例如，对于上行信道）的信息作为每个下游信道中的开销比特的一部分广播到远程单元。每个远程单元监视广播消息，并且随着时间的推移，酌情更新其包含信道分配的数据结构的其自己的版本。在一个实施例中，中央控制器还发送指示发生频道分配何时改变的第二类型的广播消息。在本实施例中，第二类广播消息比包含信道分配的整个数据结构更频繁地发送，并且当第二类型的广播消息指示数据结构的变化时，远程单元仅更新其数据结构的副本。

19. 发明授权

US5303290A System for elminating glare in virtual private line circuits 失效
标题翻译：虚拟专线电路中眩光的系统
公开(公告)号：US5303290A
公开(公告)日：1994-04-12
申请号：US800812
申请日：1991-11-29
申请人： David A. Redberg , David L. Sprague
发明人： David A. Redberg , David L. Sprague
IPC分类号： H04M7/10 , H04Q3/00 , H04Q3/62
CPC分类号： H04Q3/62 , H04Q3/0062 , H04Q2213/13531 , H04Q2213/13541 , Y10S379/901
摘要： This application discloses a system for eliminating a busy line condition and completing a call over a virtual private line when the stations at each of the lines attempt to initiate a call simultaneously. The system is implemented in three phases. In a first phase, the busy line condition is detected by either the communication switching system which sets up the virtual private line or by two signal converters, each connected to a station set at each end of the line. In a second phase, the switching system or the converters send terminating supervisory signals towards each station to terminate the attempted initial calls while the stations are still off-hook. In a third phase, a predetermined signal converter or a selected switch in the communication switching system initiates a new call by emitting an originating supervisory signal while the stations are still off-hook.
摘要翻译：本申请公开了一种系统，用于当每个线路上的站尝试同时发起呼叫时，消除忙线条件并通过虚拟专用线路完成呼叫。该系统分三个阶段实施。在第一阶段，忙线条件由建立虚拟专线的通信交换系统或两个信号转换器检测，每个信号转换器连接到设置在线路的每一端的站。在第二阶段中，交换系统或转换器向终端发送终止监控信号，以终止所尝试的初始呼叫，同时站仍然是摘机。在第三阶段中，通信交换系统中的预定信号转换器或选择的开关通过在站仍然摘机时发出始发监控信号而发起新呼叫。

20. 发明授权

US4791580A Display processor updating its color map memories from the serial output port of a video random-access memory 失效
标题翻译：显示处理器从视频随机存取存储器的串行输出端口更新其色图存储器
公开(公告)号：US4791580A
公开(公告)日：1988-12-13
申请号：US918552
申请日：1986-10-14
申请人： James V. Sherrill , David L. Sprague
发明人： James V. Sherrill , David L. Sprague
IPC分类号： G09G5/06 , G09G1/16
CPC分类号： G09G5/06
摘要： A display processor for a computer with graphics capability includes color map memories addressed by portions of pixel codes during display line trace intervals. The read-outs from these color map memories provide the primary color component signals from which the drive signals for the display monitor kinescope are derived. The pixel codes, from which color map memory addresses are derived, are supplied at video rate to the display processor from the serial output port of dual-ported video random access memory. The color map memories are loaded with new color map data during display retrace intervals. By supplying this new color map data from the serial port of the dual-ported video random-access memory, the color map memories can be rapidly updated.
摘要翻译：用于具有图形能力的计算机的显示处理器包括在显示行跟踪间隔期间由像素代码的部分寻址的彩色映射存储器。从这些彩色映射存储器的读出提供了用于显示显示器显像管的驱动信号得到的原色分量信号。从双端口视频随机存取存储器的串行输出端口以视频速率向显示处理器提供从其导出颜色映射存储器地址的像素码。在显示回扫间隔期间，颜色映射存储器加载新的颜色映射数据。通过从双端口视频随机存取存储器的串行端口提供这种新的颜色映射数据，可以快速更新颜色映射存储器。

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