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41. 发明授权

US07254824B1 Encoding optimization techniques for encoding program grid section of server-centric interactive programming guide 有权
标题翻译：编码优化技术编码方案网格部分以服务器为中心的交互式编程指南
公开(公告)号：US07254824B1
公开(公告)日：2007-08-07
申请号：US09583388
申请日：2000-05-30
申请人： Donald F. Gordon , Sadik Bayrakeri , John P. Comito , Edward A. Ludvig , Harold P. Yocom
发明人： Donald F. Gordon , Sadik Bayrakeri , John P. Comito , Edward A. Ludvig , Harold P. Yocom
IPC分类号： H04N7/10
CPC分类号： H04N21/235 , H04N5/4401 , H04N5/44504 , H04N5/44543 , H04N5/45 , H04N7/17318 , H04N19/61 , H04N21/234336 , H04N21/4312 , H04N21/4314 , H04N21/434 , H04N21/435 , H04N21/4821
摘要： An interactive program guide (IPG) may include a program grid section and a multimedia section. The program grid section typically contains program information organized in a grid with a time axis and a channel axis. The multimedia section may include video for advertisement, previews, and other purposes. Such an IPG may be rendered and encoded at a server and distributed to client terminals in the form of compressed bit streams.For certain IPGs, the program grid section may comprise alternating stripes of background with different shades (lighter/darker) or different colors. Typically, the alternating background stripes may be used to visually separate text information into timeslots or channels.Blank areas of the background may be “skip” encoded to “save” a portion of the bit rate. Meanwhile, the quantizer stepsize for encoding that section may be lowered so as to utilize the saved bits to improve the viewing quality of the program grid section. Additionally or alternatively, the quantization matrix for encoding the program grid section may be optimized for encoding text (rather than being, for example, a standard quantization matrix).Encoding may be performed on the program grid section such that encoded macroblocks do not cross a border between two stripes. In other words, each encoded macroblock in the program grid section may be within a single stripe. Additionally or alternatively, low-pass frequency filtering may be applied on the background stripes. Such low-pass filtering reduces visual defects due to ringing from edges between stripes.
摘要翻译：交互式节目指南（IPG）可以包括节目网格部分和多媒体部分。节目网格部分通常包含组织在具有时间轴和频道轴的网格中的节目信息。多媒体部分可以包括用于广告，预览和其他目的的视频。这样的IPG可以在服务器处呈现和编码，并以压缩比特流的形式分发给客户终端。对于某些IPG，程序网格部分可以包括具有不同色调（较亮/较暗）或不同颜色的背景的交替条纹。通常，交替的背景条纹可用于将文本信息视觉上分离成时隙或信道。背景的空白区域可以被编码为“保存”比特率的一部分的“跳过”。同时，用于编码的量化器步骤可以降低该部分，以便利用保存的比特来改善节目网格部分的观看质量。附加地或替代地，用于编码节目网格部分的量化矩阵可以被优化用于编码文本（而不是例如是标准量化矩阵）。可以在节目网格部分上执行编码，使得编码的宏块不跨越两个条纹之间的边界。换句话说，程序网格部分中的每个编码的宏块可以在单个条带内。另外或替代地，低通滤波可以应用在背景条纹上。这种低通滤波减少了由于条纹之间的边缘的振铃导致的视觉缺陷。

42. 发明授权

US07174084B2 Method and apparatus for performing sub-picture level splicing based on interrupts 有权
标题翻译：基于中断执行子画面级拼接的方法和装置
公开(公告)号：US07174084B2
公开(公告)日：2007-02-06
申请号：US09805492
申请日：2001-03-13
申请人： Jeremy S. Edmonds , John P. Comito
发明人： Jeremy S. Edmonds , John P. Comito
IPC分类号： H04N5/93
CPC分类号： H04N21/42692 , H04N5/4401 , H04N5/44543 , H04N5/45 , H04N21/4312 , H04N21/4314 , H04N21/434 , H04N21/4351 , H04N21/443 , H04N21/482 , H04N21/6543 , H04N21/845
摘要： Techniques to effectuate splicing at sub-picture level. In one aspect, splicing is effectuated via an interrupt generated after each splice has occurred. The interrupt may be generated by either the hardware designated to perform splicing or other peripheral hardware. The interrupt may be provided to a controller, which then performs the necessary processing to effectuate the next splice (e.g., load a new PID value for the next splice into the hardware register). The interrupts required for splicing may be generated in various manners, and typically depends on the specific design of the splicing and/or peripheral hardware. In one simple design, the splicing hardware generates an interrupt after each splice. Other mechanisms may also be used to generate the interrupt. For example, (e.g., scrambled audio) packets may be inserted into a transport stream and used to cause the hardware to generate an interrupt each time the packet is detected.
摘要翻译：在亚图像级别实现拼接的技术。在一个方面，通过在每个接头发生后产生的中断来实现拼接。中断可以由被指定为执行拼接或其他外围硬件的硬件产生。该中断可以提供给控制器，控制器然后执行必要的处理以实现下一个接合（例如，将下一个接合的新PID值加载到硬件寄存器中）。拼接所需的中断可以以各种方式产生，并且通常取决于拼接和/或外围硬件的具体设计。在一个简单的设计中，拼接硬件在每个拼接后产生一个中断。也可以使用其他机制来产生中断。例如，（例如，加扰的音频）分组可以被插入到传输流中，并且用于在每次检测到分组时使硬件产生中断。

43. 发明授权

US07996459B2 Video-switched delivery of media content using an established media-delivery infrastructure 有权
标题翻译：使用已建立的媒体传送基础设施的媒体内容的视频交换传送
公开(公告)号：US07996459B2
公开(公告)日：2011-08-09
申请号：US11469425
申请日：2006-08-31
申请人： Edward A. Ludvig , John P. Comito
发明人： Edward A. Ludvig , John P. Comito
IPC分类号： G06F15/16
CPC分类号： H04L65/4084 , H04L69/14 , H04N21/2385 , H04N21/6118 , H04N21/631 , H04N21/64322 , H04N21/6543
摘要： A strategy is described for delivering media content to clients using a combination of switched media technology and established broadcast delivery technology (such as HFC technology). The strategy is advantageous because it provides the benefits of switched media environment without requiring significant revision to the established delivery infrastructure. The strategy includes a first version in which channels are not shared among clients, and a second version in which channels may be shared among clients which are accessing the same media content.
摘要翻译：描述了一种策略，用于使用交换媒体技术和已建立的广播传送技术（例如HFC技术）的组合将客户端传送媒体内容。该策略是有利的，因为它提供了切换媒体环境的优势，而不需要对已建立的传送基础设施进行大量修改。该策略包括其中不在客户端之间共享频道的第一版本，以及在访问相同媒体内容的客户端之间可以共享频道的第二版本。

44. 发明授权

US07646812B2 Special predictive picture encoding using color key in source content 失效
标题翻译：在源内容中使用颜色键的特殊预测图像编码
公开(公告)号：US07646812B2
公开(公告)日：2010-01-12
申请号：US11098023
申请日：2005-04-01
申请人： Edward A. Ludvig , Jack T. Lee , John P. Comito
发明人： Edward A. Ludvig , Jack T. Lee , John P. Comito
IPC分类号： H04B1/66
CPC分类号： H04N19/132 , H04N7/17336 , H04N7/52 , H04N19/136 , H04N19/17 , H04N19/61 , H04N21/2221 , H04N21/23439 , H04N21/236 , H04N21/4316 , H04N21/47202 , H04N21/4722 , H04N21/8153
摘要： Encoding functionality is described for producing encoded intra (I) pictures and predictive (P) pictures for consumption by an application running on a set-top box. The encoding functionality includes a pre-processing module which marks regions that should not be updated with a predetermined color code. An encoding module receives the output of the pre-processing module, and, in the event that the output contains the predetermined color code, produces a predictive (P) picture. In the predictive (P) picture, the encoding module produces macroblocks having zero motion vector and zero difference (or skipped macroblocks) corresponding to regions that were marked by the pre-processing module with the predetermined color code. The encoding module produces intra macroblocks for other regions of the picture (corresponding to update regions).
摘要翻译：描述了用于产生编码的帧内（I）图像和预测（P）图像以供运行在机顶盒上的应用程序消耗的编码功能。编码功能包括预处理模块，其标记不应用预定颜色代码更新的区域。编码模块接收预处理模块的输出，并且在输出包含预定颜色代码的情况下，产生预测（P）图像。在预测（P）图像中，编码模块产生具有零运动矢量和零差（或跳过的宏块）的宏块，对应于由预处理模块用预定颜色代码标记的区域。编码模块为图像的其他区域（对应于更新区域）产生帧内宏块。

45. 发明申请

US20080059646A1 VIDEO-SWITCHED DELIVERY OF MEDIA CONTENT USING AN ESTABLISHED MEDIA-DELIVERY INFRASTRUCTURE 有权
标题翻译：使用已建立的媒体交付基础设施进行视频切换传输媒体内容
公开(公告)号：US20080059646A1
公开(公告)日：2008-03-06
申请号：US11469425
申请日：2006-08-31
申请人： Edward A. Ludvig , John P. Comito
发明人： Edward A. Ludvig , John P. Comito
IPC分类号： G06F15/16
CPC分类号： H04L65/4084 , H04L69/14 , H04N21/2385 , H04N21/6118 , H04N21/631 , H04N21/64322 , H04N21/6543
摘要： A strategy is described for delivering media content to clients using a combination of switched media technology and established broadcast delivery technology (such as HFC technology). The strategy is advantageous because it provides the benefits of switched media environment without requiring significant revision to the established delivery infrastructure. The strategy includes a first version in which channels are not shared among clients, and a second version in which channels may be shared among clients which are accessing the same media content.
摘要翻译：描述了一种策略，用于使用交换媒体技术和已建立的广播传送技术（例如HFC技术）的组合将客户端传送媒体内容。该策略是有利的，因为它提供了切换媒体环境的好处，而不需要对已建立的传送基础架构进行大量修改。该策略包括其中不在客户端之间共享频道的第一版本，以及在访问相同媒体内容的客户端之间可以共享频道的第二版本。

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