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公开(公告)号：USRE44245E1
公开(公告)日：2013-05-28
申请号：US10800358
申请日：2004-03-12
IPC分类号： H04N9/80
CPC分类号： H04N21/4104 , H04N5/913 , H04N7/163 , H04N21/4331 , H04N2005/91314 , H04N2005/91321 , H04N2005/91371
摘要： A method and apparatus for protecting access to audio and/or video data is accomplished when data is received, where the data may be audio data and/or video data. Having received the data, it is interpreted to determine whether an embedded data access parameter is active. If so, an indication of the particular type of data access is generated. The data access parameter may control access to the data as at least one of: copy restrictions, viewing restrictions, and/or use restrictions. The indication is subsequently provided to a computer system such that unauthorized accessing, including unauthorized copying, of the video and/or audio data is prohibited.
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2.发明授权公开(公告)号：US06356704B1
公开(公告)日：2002-03-12
申请号：US08878249
申请日：1997-06-16
IPC分类号： H04N591
CPC分类号： H04N21/4104 , H04N5/913 , H04N7/163 , H04N21/4331 , H04N2005/91314 , H04N2005/91321 , H04N2005/91371
摘要： A method and apparatus for protecting access to audio and/or video data is accomplished when data is received, where the data may be audio data and/or video data. Having received the data, it is interpreted to determine whether an embedded data access parameter is active. If so, an indication of the particular type of data access is generated. The data access parameter may control access to the data as at least one of: copy restrictions, viewing restrictions, and/or use restrictions. The indication is subsequently provided to a computer system such that unauthorized accessing, including unauthorized copying, of the video and/or audio data is prohibited.
摘要翻译： 当接收到数据时，可以实现用于保护对音频和/或视频数据的访问的方法和装置，其中数据可以是音频数据和/或视频数据。 接收到数据后，将解释为确定嵌入式数据访问参数是否处于活动状态。 如果是，则生成特定类型的数据访问的指示。 数据访问参数可以控制对数据的访问，作为复制限制，观看限制和/或使用限制中的至少一个。 该指示随后被提供给计算机系统，使得禁止视频和/或音频数据的未授权访问，包括未经授权的复制。
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公开(公告)号：US08200044B2
公开(公告)日：2012-06-12
申请号：US11619358
申请日：2007-01-03
IPC分类号： G06K9/32
CPC分类号： G06T3/403 , G06F3/1415 , G06T3/4084 , G06T7/42 , G06T2207/20012 , G09G2360/02
摘要： An image analyser analyses regions of an image. An image scaler may then scale the image adaptively, in dependence on the nature of region of the image being scaled. In one embodiment, adjacent pixels are analysed to determine their frequency content. This frequency analysis provides an indication of whether the pixels likely contain hard edges, discontinuities or variations typical of computer generated graphics. As a result of the analysis, the type of scaling suited for scaling the image portion containing the pixels may be assessed. Adjacent pixels having high frequency components may be scaled by a scaling circuit that introduces limited ringing. Adjacent pixels having lower frequency components may be scaled using a higher-order multi-tap scaler. Resulting scaled pixels may be formed as a blended combination of the two different scaling techniques.
摘要翻译： 图像分析仪分析图像的区域。 然后，图像缩放器可以根据被缩放的图像的区域的性质自适应地缩放图像。 在一个实施例中，分析相邻像素以确定其频率内容。 该频率分析提供了像素是否可能包含计算机生成的图形的硬边缘，不连续或变化的指示。 作为分析的结果，可以评估适合于缩放包含像素的图像部分的缩放类型。 具有高频分量的相邻像素可以由引入有限振铃的缩放电路来缩放。 具有较低频率分量的相邻像素可以使用更高阶的多抽头缩放器进行缩放。 所得到的缩放像素可以形成为两种不同缩放技术的混合组合。
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公开(公告)号：US6028586A
公开(公告)日：2000-02-22
申请号：US819922
申请日：1997-03-18
申请人： Philip Lawrence Swan , Edward George Callway , Biljana Dusan Simsic , Ivan Wong Yin Yang , David Ian James Glen
发明人： Philip Lawrence Swan , Edward George Callway , Biljana Dusan Simsic , Ivan Wong Yin Yang , David Ian James Glen
CPC分类号： G09G5/363 , G09G2340/0435
摘要： A method and apparatus for detecting differences between an image update rate and a display update rate and to provide a viable solution that produces minimal adverse visual effects is achieved by first detecting an image delineation from a stream of images. The image delineation is then used to determine the image update rate which is compared to the display update rate to produce a relationship between the two update rates. The relationship is then compared to a plurality of desired relationships to determine if it is sufficiently similar to one or more of the desired relationships. If it is, an image display pattern associated with the desired relationship is used. For example, if the relationship is sufficiently similar to the desired relationship of 1:1, then the image display pattern will be 1111 . . . In other words, the image display pattern would display each received image once. But, even though the relationship is sufficiently similar, the display update is adjusted, such that, over time, the relationship matches the desired relationship.
摘要翻译： 通过首先从图像流检测图像描绘来实现用于检测图像更新速率和显示更新率之间的差异并提供产生最小不利视觉效果的可行解决方案的方法和装置。 然后使用图像描绘来确定与显示更新率进行比较以产生两个更新率之间的关系的图像更新速率。 然后将该关系与多个期望的关系进行比较，以确定其是否与一个或多个期望的关系充分相似。 如果是，则使用与期望关系相关联的图像显示图案。 例如，如果关系足够类似于1：1的期望关系，则图像显示图案将为1111。 。 。 换句话说，图像显示图案将显示每个接收的图像一次。 但是，即使关系足够相似，显示更新被调整，使得随着时间的推移，关系匹配期望的关系。
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公开(公告)号：US5812203A
公开(公告)日：1998-09-22
申请号：US657228
申请日：1996-06-03
申请人： Philip L. Swan , Edward George Callway , Lili Kang
发明人： Philip L. Swan , Edward George Callway , Lili Kang
CPC分类号： H04N7/012 , H04N5/202 , Y10S348/91
摘要： A method of scan conversion comprising (a) receiving source data representing a predetermined signal component of respective pixels of successive lines of a non-interlaced display, (b) adding the source data related to vertically adjacent pixels in a set of source lines of the non-interlaced display to form one of an odd and even line of an interlaced display, (c) repeating step (b) for another immediately following set of source lines to form another one of the odd or even line of the interlaced display, and (d) repeating steps (a), (b) and (c) successively to an end of an odd or even field of the interlaced display.
摘要翻译： 一种扫描转换方法，包括：（a）接收表示非间行显示的连续行的各个像素的预定信号分量的源数据，（b）将与垂直相邻像素有关的源数据相加在一组源行中 非隔行显示以形成隔行显示的奇数行和偶数行之一，（c）针对另一个紧接着的源极行集合重复步骤（b）以形成交错显示的奇数或偶数行中的另一个，以及 （d）连续地重复步骤（a），（b）和（c）到交错显示器的奇数或偶数场的末尾。
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