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41. 发明申请

WO2005031644A1 METHOD AND SYSTEM FOR SCALING IMAGES 审中-公开
标题翻译：用于缩放图像的方法和系统
公开(公告)号：WO2005031644A1
公开(公告)日：2005-04-07
申请号：PCT/CA2004/001766
申请日：2004-09-29
申请人： VIXS SYSTEMS INC. , ZENG, Steve Zhihua
发明人： ZENG, Steve Zhihua
IPC分类号： G06T3/40
CPC分类号： G06T3/4084 , G09G5/363 , G09G2340/0407
摘要： A system of scaling is disclosed. A data structure is provided including a control word indicative of a number of input pixels associated with a scaling cycle, a number of output pixels associated with a scaling cycle, a number of available phases and a shift variable. Scaling is performed by incrementing a current phase to obtain a adjusted value, decrementing the adjusted value to obtain a second adjusted value, and determining an index value to access a coefficient by right-shifting the second adjusted value.
摘要翻译：公开了一种缩放系统。提供数据结构，其包括指示与缩放周期相关联的输入像素的数量的控制字，与缩放周期相关联的输出像素的数量，可用相的数量以及移位变量。缩放是通过递增当前阶段以获得调整值，递减调整值以获得第二调整值，并且通过右移第二调整值来确定索引值以访问系数。

42. 发明申请

WO2003005719A3 METHOD AND APPARATUS FOR MANAGING RESOURCES AND MULTIPLEXING A PLURALITY OF CHANNELS IN A MULTIMEDIA SYSTEM 审中-公开
公开(公告)号：WO2003005719A3
公开(公告)日：2003-01-16
申请号：PCT/CA2002/000727
申请日：2002-05-21
申请人： VIXS SYSTEMS INC. , LAKSONO, Indra
发明人： LAKSONO, Indra
IPC分类号： H04N7/16
摘要： A method and apparatus for providing: multimedia services to a local area network includes processing that begins by receiving a plurality of channels from at least one multimedia source. The processing continues by receiving selection requests from at least one client module via a communication path. The processing continues by generating a set of channel select commands from the select request. The processing continues by selecting a set of channels from the plurality of channels based on the set of channel select commands. The processing continues by mixing the set of channels into a stream of channel data. The processing then continues by transmitting the stream of channel data via the communication path to the at least one client module such that each client associated with a client module receives the channel data for the respective channels that they had selected.

43. 发明申请

WO2005036872A1 METHOD AND SYSTEM FOR NOISE REDUCTION IN AN IMAGE 审中-公开
标题翻译：图像噪声减少的方法和系统
公开(公告)号：WO2005036872A1
公开(公告)日：2005-04-21
申请号：PCT/CA2004/001764
申请日：2004-09-29
申请人： VIXS SYSTEMS INC. , ZENG, Steve, Zhihua
发明人： ZENG, Steve, Zhihua
IPC分类号： H04N5/00
CPC分类号： H04N5/21 , G06T5/50 , G06T7/12 , G06T2207/10016 , G06T2207/20221 , H04N5/142
摘要： In a specific embodiment of the present disclosure, a source image is smoothed to create a smoothed image, and an edge detector is used to create an edge layer. A blending controller is used to control a blending between the source image and the smoothed image. The blended destination image maintains detail while eliminating unwanted noise.
摘要翻译：在本公开的特定实施例中，源图像被平滑以创建平滑图像，并且使用边缘检测器来创建边缘层。混合控制器用于控制源图像和平滑图像之间的混合。混合的目的地图像保留细节，同时消除不必要的噪音。

44. 发明申请

WO2003107673A1 DYNAMICALLY ADJUSTING DATA RATE OF WIRELESS COMMUNICATIONS 审中-公开
标题翻译：动态调整无线通信数据速率
公开(公告)号：WO2003107673A1
公开(公告)日：2003-12-24
申请号：PCT/CA2003/000868
申请日：2003-06-11
申请人： VIXS SYSTEMS INC. , GIRARDEAU, James , KELTON, James, R.
发明人： GIRARDEAU, James , KELTON, James, R.
IPC分类号： H04N7/24
CPC分类号： H04N21/6373 , H04N7/17318 , H04N21/41407 , H04N21/44209 , H04N21/6131
摘要： A method and apparatus for dynamic data rate adjustment of a wireless transport channel include processing that begins with one of a plurality of client modules within a wireless multimedia system monitors channel characteristics of a wireless transport channel. The monitoring is done at or below a received packet rate to determine variations in the channel characteristics on a packet-by-packet basis or on a group-of-packets by group-of-packets basis. The processing continues when the client module determines whether the variations in the channel characteristics affect the data rate of data contained in the packets received via the wireless transport channel. When the variations in the channel characteristics affect the data rate, the client module provides data rate adjustment feedback to a multimedia server of the wireless multimedia system via the wireless transport channel. The processing continues when the multimedia server adjusts the data rate of the data contained in the packets being transported via the wireless transport channel in accordance with the data rate adjustment feedback.
摘要翻译：一种用于无线传输信道的动态数据速率调整的方法和装置包括以无线多媒体系统内的多个客户机模块之一开始的处理，监视无线传输信道的信道特性。在接收到的分组速率或低于接收分组速率的情况下进行监视，以基于分组或基于分组的分组确定信道特性的变化。当客户端模块确定信道特性的变化是否影响经由无线传输信道接收到的分组中包含的数据的数据速率时，处理继续。当信道特性的变化影响数据速率时，客户端模块通过无线传输信道向无线多媒体系统的多媒体服务器提供数据速率调整反馈。当多媒体服务器根据数据速率调整反馈调整经由无线传输信道传输的分组中包含的数据的数据速率时，处理继续。

45. 发明申请

WO2003094510A1 METHOD AND SYSTEM FOR PROTECTING VIDEO DATA 审中-公开
标题翻译：用于保护视频数据的方法和系统
公开(公告)号：WO2003094510A1
公开(公告)日：2003-11-13
申请号：PCT/CA2003/000623
申请日：2003-04-28
申请人： VIXS SYSTEMS INC. , ENG, Steven , DUCHARME, Paul
发明人： ENG, Steven , DUCHARME, Paul
IPC分类号： H04N7/16
CPC分类号： H04N21/2221 , H04N7/1675 , H04N21/2343 , H04N21/2347 , H04N21/26606
摘要： A key protected data stream and an encryption key are received at a gateway device. The gateway device unprotects the data stream based upon the encryption key. The unprotected received data is modified by the gateway to generate a modified data. The modified data is protected based upon the encryption key to generate a key protected modified data. The gateway then transmits the key protected modified data to one or more clients along with the encryption key.
摘要翻译：密钥保护数据流和加密密钥在网关设备处被接收。网关设备根据加密密钥取消保护数据流。由网关修改未受保护的接收数据，以生成修改后的数据。修改的数据基于加密密钥进行保护，以生成受密钥保护的修改数据。然后，网关随着加密密钥将密钥保护的修改数据发送到一个或多个客户端。

46. 发明申请

WO2004063992A1 VIDEO FRAME CORRELATION FOR MOTION ESTIMATION 审中-公开
标题翻译：视频帧运动估计的相关性
公开(公告)号：WO2004063992A1
公开(公告)日：2004-07-29
申请号：PCT/CA2004/000093
申请日：2004-01-14
申请人： VIXS SYSTEMS INC. , RAULT, Patrick , ZENG, Zhihua
发明人： RAULT, Patrick , ZENG, Zhihua
IPC分类号： G06T7/20
CPC分类号： G06T7/20
摘要： A first search window within a reference frame of video data is identified along with a first correlation threshold value for the first window. The first correlation threshold value is a value to which correlation factors between a pixel set being encoded and pixels sets of the first search window are compared. For example, if a correlation factor between a specific pixel set of the first search window and a pixel set being encoded meets the first threshold value, a successful match between the two pixel sets has been found, and a corresponding motion vector can be assigned to the pixel set being encoded. If none of the pixel sets within the first window meet the first threshold value, a second search window within the first frame is selected along with a second correlation threshold value. The correlation factors for pixel sets in the second window are compared to the second correlation threshold value.
摘要翻译：识别视频数据的参考帧内的第一搜索窗口以及第一窗口的第一相关阈值。第一相关阈值是对被编码的像素组和第一搜索窗口的像素组之间的相关因子进行比较的值。例如，如果第一搜索窗口的特定像素组和被编码的像素组之间的相关因子满足第一阈值，则已经找到两个像素组之间的成功匹配，并且可以将相应的运动矢量分配给像素集被编码。如果第一窗口内的像素集都不满足第一阈值，则选择第一帧内的第二搜索窗口以及第二相关阈值。将第二窗口中的像素集合的相关因子与第二相关阈值进行比较。

47. 发明申请

WO03047264A3 METHOD AND SYSTEM FOR RATE CONTROL DURING VIDEO TRANSCODING 审中-公开
标题翻译：视频转码过程中速率控制的方法和系统
公开(公告)号：WO03047264A3
公开(公告)日：2003-09-04
申请号：PCT/CA0201712
申请日：2002-11-07
申请人： VIXS SYSTEMS INC , LAKSONO INDRA , ZENG ZHIHUA
发明人： LAKSONO INDRA , ZENG ZHIHUA
IPC分类号： H04N7/30 , H04N7/26 , H04N7/50
CPC分类号： H04N19/40 , H04N19/126 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/61
摘要： A system and method for rate control of pre-encoded video content are disclosed herein. An local system encodes previously decoded video data using a transcoding quantization value based on a source quantization value provided by a previous encoder as part of the retrieved video data. The transcoding quantization value can be determined additionally based the fullness of the video buffer of a target system, where a measure of the fullness can be obtained directly from the target system or modeled by the local system. The video data is encoded by the local system and then provided to a target system for decoding and subsequent display and/or storage.
摘要翻译：这里公开了一种用于预编码的视频内容的速率控制的系统和方法。本地系统使用代码转换量化值对先前已解码的视频数据进行编码，所述代码转换量化值基于由先前编码器提供的源量化值作为所检索的视频数据的一部分。可以基于目标系统的视频缓冲器的充满度另外确定代码转换量化值，其中可以从目标系统直接获取或由本地系统建模来获得丰满度量。视频数据由本地系统编码，然后提供给目标系统进行解码和随后的显示和/或存储。

48. 发明申请

WO2003047265A3 MULTIPLE CHANNEL VIDEO TRANSCODING 审中-公开
公开(公告)号：WO2003047265A3
公开(公告)日：2003-06-05
申请号：PCT/CA2002/001713
申请日：2002-11-07
申请人： VIXS SYSTEMS INC. , LAKSONO, Indra
发明人： LAKSONO, Indra
IPC分类号： H04N7/26
摘要： A system and a method for manipulating video data received over a media channels is disclosed herein. The method includes using an index table to reference stored video data, including motion vectors, so that they can be efficiently accessed by encoder and decoder portions of a transcoder, where the decoder generates source pixel images, and the encoder generates estimated motion vectors based on the motion vector data stored.

49. 发明申请

WO03047265A2 SYSTEM AND METHOD FOR MULTIPLE CHANNEL VIDEO TRANSCODING 审中-公开
标题翻译：用于多通道视频传输的系统和方法
公开(公告)号：WO03047265A2
公开(公告)日：2003-06-05
申请号：PCT/CA0201713
申请日：2002-11-07
申请人： VIXS SYSTEMS INC , LAKSONO INDRA
发明人： LAKSONO INDRA
IPC分类号： H04N7/32 , H04N7/26 , H04N7/50
CPC分类号： H04N21/440263 , H04N19/174 , H04N19/40 , H04N19/42 , H04N19/423 , H04N19/61
摘要： A system and a method for manipulating video data received over a media channels is disclosed herein. The method includes using an index table to reference stored video data, including motion vectors, so that they can be efficiently accessed by encoder and decoder portions of a transcoder, where the decoder generates source pixel images, and the encoder generates estimated motion vectors based on the motion vector data stored.
摘要翻译：本文公开了一种用于操纵通过媒体信道接收的视频数据的系统和方法。该方法包括使用索引表来引用包括运动矢量的存储的视频数据，使得它们可以被代码转换器的编码器和解码器部分有效地访问，其中解码器产生源像素图像，并且编码器基于存储运动矢量数据。

50. 发明申请

WO2003047264A2 METHOD AND SYSTEM FOR RATE CONTROL DURING VIDEO TRANSCODING 审中-公开
标题翻译：视频转码期间速率控制的方法和系统
公开(公告)号：WO2003047264A2
公开(公告)日：2003-06-05
申请号：PCT/CA2002/001712
申请日：2002-11-07
申请人： VIXS SYSTEMS INC. , LAKSONO, Indra , ZENG, Zhihua
发明人： LAKSONO, Indra , ZENG, Zhihua
IPC分类号： H04N7/26
CPC分类号： H04N19/40 , H04N19/126 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/61
摘要： A system and method for rate control of pre-encoded video content are disclosed herein. An local system encodes previously decoded video data using a transcoding quantization value based on a source quantization value provided by a previous encoder as part of the retrieved video data. The transcoding quantization value can be determined additionally based the fullness of the video buffer of a target system, where a measure of the fullness can be obtained directly from the target system or modeled by the local system. The video data is encoded by the local system and then provided to a target system for decoding and subsequent display and/or storage.
摘要翻译：本文公开了一种用于预编码视频内容的速率控制的系统和方法。本地系统使用基于由先前编码器提供的源量化值作为检索的视频数据的一部分的代码转换量化值对先前解码的视频数据进行编码。可以另外基于目标系统的视频缓冲器的丰满度来确定代码转换量化值，其中可以从目标系统直接获得饱和度的度量或由本地系统建模。视频数据由本地系统编码，然后提供给目标系统进行解码和随后的显示和/或存储。

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