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51. 发明申请

US20050225472A1 Method and apparatus for an image canceling digital-to-analog converter (DAC) 失效
标题翻译：用于图像消除数模转换器（DAC）的方法和装置
公开(公告)号：US20050225472A1
公开(公告)日：2005-10-13
申请号：US10920500
申请日：2004-08-18
申请人： Brian Schoner
发明人： Brian Schoner
IPC分类号： H03M1/66 , H03M3/04
CPC分类号： H03M3/368 , H03M3/50
摘要： A method and apparatus for an image canceling digital-to-analog converter is disclosed. Up-sampling and noise shaping is used to produce a stream of digital sample values at a relatively higher sampling rate than the sampling rate of the digitized input samples, each higher sampling rate sample having fewer bits than the original samples. The higher sampling rate stream is then distributed for sequential conversion by multiple digital-to-analog converters each operating at a lower sampling rate. The outputs of the converters are then combined to form a combined output signal. Most spectral images normally observed in a standard or conventional DAC are attenuated in the combined output signal of an embodiment in accordance with the present invention. Any spectral images that remain are further from the signal of interest, permitting the use of lower cost filtering.
摘要翻译：公开了一种用于图像消除数模转换器的方法和装置。上采样和噪声整形用于以比数字化输入样本的采样率相对更高的采样率产生数字采样值流，每个较高的采样率采样具有比原始采样少的位。然后，较高的采样速率流被分配用于以较低采样率操作的多个数模转换器进行顺序转换。然后将转换器的输出组合以形成组合的输出信号。通常在标准或常规DAC中观察到的大多数光谱图像在根据本发明的实施例的组合输出信号中被衰减。剩余的任何光谱图像都远离感兴趣的信号，允许使用较低成本的滤波。

52. 发明申请

US20050002460A1 System and method for efficiently storing macroblocks in SD-RAM 失效
标题翻译：用于高效地存储SD-RAM中的宏块的系统和方法
公开(公告)号：US20050002460A1
公开(公告)日：2005-01-06
申请号：US10716008
申请日：2003-11-18
申请人： Lakshman Ramakrishnan , Sathish Radhakrishnan , Brian Schoner , Darren Neuman
发明人： Lakshman Ramakrishnan , Sathish Radhakrishnan , Brian Schoner , Darren Neuman
IPC分类号： H04N7/12 , H04N7/26 , H04N7/50
CPC分类号： H04N19/423 , H04N19/61
摘要： Presented herein are systems and methods for efficiently storing macroblocks in DRAM. The macroblocks are stored contiguously allowing each macroblock to be written and overwritten in a single write transaction. Additionally, in one embodiment, as many as five macroblocks can be written or overwritten in a single write transaction.
摘要翻译：这里呈现的是用于在DRAM中有效地存储宏块的系统和方法。宏块被连续存储，允许在单个写入事务中写入和重写每个宏块。另外，在一个实施例中，多达五个宏块可以在单个写入事务中被写入或重写。

53. 发明授权

US5926227A Video decoder dynamic memory allocation system and method with error recovery 失效
标题翻译：视频解码器动态内存分配系统和方法与错误恢复
公开(公告)号：US5926227A
公开(公告)日：1999-07-20
申请号：US901581
申请日：1997-07-28
申请人： Brian Schoner , Darren Neuman
发明人： Brian Schoner , Darren Neuman
IPC分类号： H04N19/89 , H04N21/234 , H04N21/44 , H04N7/00
CPC分类号： H04N21/23406 , H04N19/00 , H04N19/423 , H04N19/427 , H04N19/61 , H04N19/89 , H04N21/44004 , H04N19/70
摘要： A video decoder which uses a dynamic memory allocation scheme having a synchronization counter for decoder-display synchronization. The synchronization counter advantageously allows for graceful recovery from error conditions in which the decoding portion of the video decoder falls behind the display portion of the video decoder. In one embodiment, the video decoder includes an MPEG bitstream decoder, FIFO buffer logic, a free segment register, and a display processor. The video decoder decodes an encoded bitstream to obtain image data for storage in an external memory, and the display processor retrieves the image data for display on a monitor. To conserve memory, the bitstream decoder stores only anchor frames as complete images in the external memory, and bi-directional images are stored in dynamically allocated memory segments. Free memory segments are determined by examination of a free segment register, and pointers to the memory segments having image data are passed to the display processor via the FIFO buffers. A synchronization counter tracks the number of memory segments by which the bitstream decoder is ahead of the display processor. By monitoring the contents of the synchronization counter and using this information to determine whether to place pointers to memory segments in the FIFO buffer, the bitstream decoder is able to maintain synchronization with the display processor, so that when the bitstream decoder catches up, the image data will be displayed at the correct position by the display processor.
摘要翻译：一种使用具有用于解码器显示同步的同步计数器的动态存储器分配方案的视频解码器。同步计数器有利地允许从视频解码器的解码部分落在视频解码器的显示部分之后的错误状态的优雅恢复。在一个实施例中，视频解码器包括MPEG比特流解码器，FIFO缓冲器逻辑，空闲段寄存器和显示处理器。视频解码器解码编码的比特流以获得用于存储在外部存储器中的图像数据，并且显示处理器检索用于在监视器上显示的图像数据。为了节省存储器，比特流解码器仅将锚帧作为完整图像存储在外部存储器中，并且将双向图像存储在动态分配的存储器段中。通过检查空闲段寄存器来确定空闲存储器段，并且具有图像数据的存储器段的指针经由FIFO缓冲器被传递到显示处理器。同步计数器跟踪比特流解码器在显示处理器之前的存储器段的数量。通过监视同步计数器的内容并使用该信息来确定是否将指针指向FIFO缓冲器中的存储器段，比特流解码器能够保持与显示处理器的同步，使得当比特流解码器追赶时，图像数据将由显示处理器显示在正确的位置。

54. 发明授权

US08842741B2 Method and system for digital noise reduction of scaled compressed video pictures 有权
标题翻译：数字降噪压缩视频图像的方法和系统
公开(公告)号：US08842741B2
公开(公告)日：2014-09-23
申请号：US12975977
申请日：2010-12-22
申请人： Brian Schoner , Jaewon Shin , Olivier Francois Joseph Harel , Advait Madhav Mogre , Hyeong-Seok Victor Ha
发明人： Brian Schoner , Jaewon Shin , Olivier Francois Joseph Harel , Advait Madhav Mogre , Hyeong-Seok Victor Ha
IPC分类号： H04N5/00 , H04N19/86
CPC分类号： H04N19/00909 , H04N19/86
摘要： In a video processing device, scale of a video image is detected for vertical and horizontal directions based on pixel information, for example, per pixel vertical and horizontal gradients. Gradients are utilized or discarded based on picture format, standard deviation of luma levels and pixel location relative to black border edges, graphics and/or overlaid content. Mosquito noise filters are adapted based on scale and/or noise strength. Median and/or linear filter results are selected based on a weakest, a strongest and/or a blended result. Horizontal and vertical operations are performed separately for edge detection, edge strength determination, filtering and filter correction control. Horizontal and vertical block grid spacing and grid shift are determined. Block noise strength is determined. Block noise filters are configured based on scaling and/or noise strength. Filter corrections are limited based on block noise strength. Noise reduction results may be blended to generate a pixel correction value.
摘要翻译：在视频处理设备中，基于像素信息，例如每像素垂直和水平梯度，检测垂直和水平方向的视频图像的尺度。基于图像格式，亮度级别的标准偏差和相对于黑色边缘边缘，图形和/或重叠内容的像素位置来使用或丢弃渐变。蚊子噪声滤波器基于规模和/或噪声强度进行调整。基于最弱，最强和/或混合结果选择中值和/或线性滤波器结果。水平和垂直操作分别进行边缘检测，边缘强度确定，滤波和滤波器校正控制。确定水平和垂直方格网格间距和网格位移。确定噪声强度。基于缩放和/或噪声强度配置块噪声滤波器。基于块噪声强度限制滤波器校正。可以混合噪声降低结果以产生像素校正值。

55. 发明授权

US08068174B2 Data rate management system and method for A/V decoder 有权
标题翻译： A / V解码器的数据速率管理系统和方法
公开(公告)号：US08068174B2
公开(公告)日：2011-11-29
申请号：US12267991
申请日：2008-11-10
申请人： Brian Schoner
发明人： Brian Schoner
IPC分类号： H04N5/04
CPC分类号： H04N21/4305
摘要： Devices and methods are disclosed for managing an output of an output stream. One embodiment relates to a method of tracking an output of an A/V decoder. In this embodiment, indication of an output stream time reference and a location of at least one output sample are received. The received time reference is compared to the output sample and the output sample rate of the A/V decoder is adjusted.
摘要翻译：公开了用于管理输出流的输出的装置和方法。一个实施例涉及跟踪A / V解码器的输出的方法。在该实施例中，接收输出流时间基准的指示和至少一个输出采样的位置。将接收到的时间参考与输出采样进行比较，并调整A / V解码器的输出采样率。

56. 发明授权

US07738708B2 System and method for aligning chroma pixels 失效
标题翻译：用于校正色度像素的系统和方法
公开(公告)号：US07738708B2
公开(公告)日：2010-06-15
申请号：US11563457
申请日：2006-11-27
申请人： Brian Schoner
发明人： Brian Schoner
IPC分类号： G06K9/48 , G06K9/00 , G06K9/32
CPC分类号： H04N9/646
摘要： Presented herein are a system and method for sharpening edges in a region. In one embodiment, there is presented a method for sharpening edges. The method comprises measuring differences between at least a value associated with a first pixel and a value associated with a second pixel of a plurality of pixels, and applying a sharpening mask to the plurality of pixels. The sharpening mask is a function of at least one of the measured differences, a first value associated with any one of the plurality of pixels, and a second value associated with any other of the pixels, thereby resulting in sharpened pixels.
摘要翻译：这里提出的是用于锐化区域中的边缘的系统和方法。在一个实施例中，提供了用于锐化边缘的方法。所述方法包括测量至少与第一像素相关联的值与与多个像素中的第二像素相关联的值之间的差异，以及对所述多个像素应用锐化掩模。锐化掩模是所测量的差异中的至少一个的函数，与多个像素中的任何一个相关联的第一值，以及与任何其他像素相关联的第二值，从而导致锐化的像素。

57. 发明授权

US07720304B2 System and method for implementing graphics and video scaling algorithm using interpolation based on symmetrical polyphase filtering 有权
标题翻译：基于对称多相滤波的插值实现图形和视频缩放算法的系统和方法
公开(公告)号：US07720304B2
公开(公告)日：2010-05-18
申请号：US11333557
申请日：2006-01-17
申请人： Sheng Zhong , Darren Neuman , Brian Schoner
发明人： Sheng Zhong , Darren Neuman , Brian Schoner
IPC分类号： G06K9/54
CPC分类号： G06T3/4007
摘要： Certain embodiments of the invention may be found in a system and method for implementing graphics and a video scaling algorithm using interpolation based on symmetrical polyphase filtering. A video or graphics scaler may be utilized to scale luma, chroma, and/or alpha information in a video image. The scaler may comprise a first symmetric polyphase sub-filter with zero phase shift that generates an in-phase filtered pixel and a second symmetric polyphase sub-filter that generates an out-of-phase filtered pixel. The video scaler may also comprise an interpolator that may generate a scaled video image pixel based on the generated in-phase and out-of-phase filtered pixels and a scaling factor. The scaling factor may be determined based on an input video size (M) and a desired output video size (N). The interpolation of the generated in-phase and out-of-phase pixels in the video scaler may be implemented by utilizing a Farrow structure.
摘要翻译：本发明的某些实施例可以在使用基于对称多相滤波的插值来实现图形和视频缩放算法的系统和方法中找到。可以使用视频或图形缩放器来缩放视频图像中的亮度，色度和/或阿尔法信息。缩放器可以包括具有零相移的第一对称多相子滤波器，其产生同相滤波的像素，以及产生异相滤波像素的第二对称多相子滤波器。视频缩放器还可以包括内插器，其可以基于产生的同相和异相滤波像素和缩放因子来生成缩放视频图像像素。缩放因子可以基于输入视频大小（M）和期望的输出视频大小（N）来确定。可以通过利用Farrow结构来实现视频缩放器中产生的同相和异相像素的插值。

58. 发明申请

US20090180028A1 METHOD AND SYSTEM FOR 3-D COLOR ADJUSTMENT BASED ON COLOR REGION DEFINITION USING PWL MODULES 审中-公开
标题翻译：基于使用PWL模块的颜色区域定义进行三维颜色调整的方法和系统
公开(公告)号：US20090180028A1
公开(公告)日：2009-07-16
申请号：US12354268
申请日：2009-01-15
申请人： David Wu , Darren Neuman , Brian Schoner , Jaewon Shin
发明人： David Wu , Darren Neuman , Brian Schoner , Jaewon Shin
IPC分类号： H04N9/65
CPC分类号： H04N9/68 , H04N9/643
摘要： A video processing system may be operable to utilize one-dimensional (1-D) piecewise linear (PWL) functions to adjust chroma and/or luma parameters corresponding to pixels that are determined to fall within one or more N-dimensional color adjustment regions in spatial representation of pixels' chroma and luma information. The chroma and/or luma parameters comprise Y, Cb, Cr, saturation and/or hue parameters in systems using Y′CbCr color coding. The 1-D PWL functions are operable to generate adjustment data corresponding to one of chroma and/or luma parameters, wherein the adjustment data comprise offset or gain data. The 1-D PWL functions are reprogrammable. The 1-D PWL functions may enable smooth transitions in boundary areas of at least some of the N-dimensional color adjustment regions. Determination of whether pixels fall within the color adjustment regions is based on a plurality of boundary points and/or criteria. Adjustment data corresponding to overlapped regions are aggregated.
摘要翻译：视频处理系统可以可操作以利用一维（1-D）分段线性（PWL）函数来调整对应于被确定落入一个或多个N维颜色调整区域内的像素的色度和/或亮度参数像素色度和亮度信息的空间表示。在使用Y'CbCr颜色编码的系统中，色度和/或亮度参数包括Y，Cb，Cr，饱和度和/或色调参数。 1-D PWL功能可操作以产生对应于色度和/或亮度参数之一的调节数据，其中调整数据包括偏移或增益数据。 1-D PWL功能可重新编程。 1-D PWL功能可以实现至少一些N维颜色调整区域的边界区域中的平滑过渡。像素落在颜色调整区域内的确定是基于多个边界点和/或标准。对应于重叠区域的调整数据进行聚合。

59. 发明授权

US07533402B2 Satellite set-top box decoder for simultaneously servicing multiple independent programs for display on independent display device 有权
标题翻译：卫星机顶盒解码器，用于同时维护多个独立程序，用于独立显示设备上显示
公开(公告)号：US07533402B2
公开(公告)日：2009-05-12
申请号：US10374768
申请日：2003-02-24
申请人： Jason Demas , Honman Law , David Baer , Brian Schoner
发明人： Jason Demas , Honman Law , David Baer , Brian Schoner
IPC分类号： H04N7/20 , H04N7/12 , H04N11/02 , H04N11/12 , H04N5/06 , H04N5/44 , H04N5/66 , H04J3/04 , G09G5/00
CPC分类号： H04N21/4347 , H04N21/2365 , H04N21/4305 , H04N21/434
摘要： An integrated receiver with dual channel transport stream decoding and delivery substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides multiple time-base clocks for two transport streams. Transport processor circuitry uses multiple PCRs to track transport streams through decoding, storage and or delivery of the decoded signals for display. Provision of a multiple time-base clock for decoding and delivering multiple transport streams allows display of the two decoded audio-video signals on independent monitors.
摘要翻译：描述了基本上在单个CMOS集成电路上实现的具有双通道传输流解码和传送的集成接收机。接收机前端为两个传输流提供多个时基时钟。传输处理器电路使用多个PCR来通过解码，存储和/或递送解码的信号来跟踪传输流以进行显示。提供用于解码和传送多个传输流的多个时基时钟允许在独立监视器上显示两个解码的音频 - 视频信号。

60. 发明申请

US20080123979A1 METHOD AND SYSTEM FOR DIGITAL IMAGE CONTOUR REMOVAL (DCR) 审中-公开
标题翻译：数字图像轮廓去除方法与系统（DCR）
公开(公告)号：US20080123979A1
公开(公告)日：2008-05-29
申请号：US11563426
申请日：2006-11-27
申请人： Brian Schoner
发明人： Brian Schoner
IPC分类号： G06K9/36 , G06K9/40
CPC分类号： G06T5/20 , G06T5/002 , G06T2207/10016 , H04N19/117 , H04N19/14 , H04N19/162 , H04N19/42 , H04N19/61 , H04N19/80 , H04N19/86 , H04N19/90
摘要： Aspects of a method and system for digital image contour removal (DCR) are provided. Digital image contours resulting from video compression may be detected in a portion of a video image by determining a variance within a search window. The variance may be compared to a threshold value for selecting the appropriate search window size. The variance may be adjusted to account for image brightness via a programmable offset value. A low pass filter having a window size that matches that of the selected search window size may be utilized to remove the detected digital image contours. Half-toning may be utilized to smooth out results for 8-bit digital video outputs. Half-toning may be based on a combination of ordered and random dither. Removal of digital image contours in video images may be performed in combination with the removal of mosquito noise and/or block noise in the video image.
摘要翻译：提供了一种用于数字图像轮廓去除（DCR）的方法和系统的方面。通过确定搜索窗口内的方差，可以在视频图像的一部分中检测由视频压缩产生的数字图像轮廓。可以将方差与用于选择适当的搜索窗口大小的阈值进行比较。可以通过可编程偏移值来调整方差来解决图像亮度。可以利用具有与所选择的搜索窗口大小的窗口大小匹配的窗口大小的低通滤波器来去除检测到的数字图像轮廓。可以使用半色调来平滑8位数字视频输出的结果。半色调可以基于有序和随机抖动的组合。视频图像中的数字图像轮廓的去除可以与去除视频图像中的蚊式噪声和/或块噪声相结合来执行。

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