公开(公告)号：US06694060B2

公开(公告)日：2004-02-17

申请号：US09746347

申请日：2000-12-21

申请人： Vincent Liu ,  Jingyang Chen ,  Siu-Wai Wu

发明人： Vincent Liu ,  Jingyang Chen ,  Siu-Wai Wu

IPC分类号： G06K936

CPC分类号： H04N21/44016 ,  H04N19/115 ,  H04N19/124 ,  H04N19/14 ,  H04N19/152 ,  H04N19/159 ,  H04N19/172 ,  H04N19/177

摘要： A controller allocates a bit size for a current frame in a group of pictures of a first compression-encoded digital video signal that is to be spliced following transmission of the group of pictures with a second compression-encoded digital video signal. The signals are spliced after a predetermined switching time. The spliced signals are buffered by a decoder buffer and then decoded by a decoder. When the second signal has a variable bit-encoding rate and the current frame is not decoded until after the predetermined switching time, the maximum bit size is determined in accordance with an estimate of the decoder buffer fullness at the predetermined switching time. When the second signal has a predetermined maximum variable bit-encoding rate and the current frame is not decoded until after the predetermined switching time, the minimum bit size is determined in accordance with the predetermined maximum bit-encoding rate of the second signal.

摘要翻译： 控制器在利用第二压缩编码数字视频信号传输图像组之后，将待拼接的第一压缩编码数字视频信号的一组图像中的当前帧的位大小分配。 信号在预定的切换时间之后被拼接。 拼接信号由解码器缓冲器缓冲，然后由解码器解码。 当第二信号具有可变比特编码率并且当预定的切换时间之前不解码当前帧，则根据在预定切换时间的解码器缓冲器充满度的估计来确定最大比特大小。 当第二信号具有预定的最大可变比特编码率并且当前帧不被解码直到预定的切换时间之后，根据第二信号的预定最大比特编码率来确定最小比特大小。

公开(公告)号：US06212484B1

公开(公告)日：2001-04-03

申请号：US09149361

申请日：1998-09-08

申请人： Jingyang Chen

发明人： Jingyang Chen

IPC分类号： G06F1716

CPC分类号： G06T17/10 ,  G06T19/20 ,  G06T2219/2016

摘要： A method, apparatus and article of manufacture for mirroring a part model within a computer aided design computer system. A physical body, which is not directly accessible to the user is used for boundary representation of the non-mirrored part model, and a special mirror transformed instance of the physical body, called the logical body, is presented to the user. The logical body is a mirrored boundary representations of the same part model, and is not persistent to conserve computer resources. The invention uses face, edge, and vertex mapping to communicate between the two bodies, and uses matrix multiplication to perform the mirroring transformation.

摘要翻译： 一种用于在计算机辅助设计计算机系统内镜像零件模型的方法，装置和制品。 用户不能直接访问的物理身体用于非镜像部件模型的边界表示，并将物理身体的特殊镜像变换实例（称为逻辑主体）呈现给用户。 逻辑体是同一部分模型的镜像边界表示，并不是保留计算机资源。 本发明使用面，边和顶点映射在两个物体之间通信，并使用矩阵乘法来执行镜像变换。

公开(公告)号：US07725202B2

公开(公告)日：2010-05-25

申请号：US10744271

申请日：2003-12-23

申请人： Jingyang Chen ,  Robert S. Nemiroff

发明人： Jingyang Chen ,  Robert S. Nemiroff

IPC分类号： G06F17/00 ,  H04N9/74

CPC分类号： H04N21/2335 ,  H04N21/23424 ,  H04N21/44016 ,  H04N21/8106 ,  H04N21/812

摘要： A system and method for audio splicing (insertion) of an Ad audio stream in the compressed domain, where variable early delivery of the Ad audio stream and variable bit rate are allowed, without creating audio distortion, glitches, or other digital artefacts or errors, in the resultant audio stream is disclosed. The present system and method provides for a splice delay buffer which delays the first five Ad audio frames until transmission of the last frame of the primary audio stream, but before the splice time. Subsequent Ad audio frames are delayed by a fixed amount, where the fixed amount is greater than the frame delay of the primary audio stream, to allow for ease of splice back to the primary audio stream.

摘要翻译： 用于音频拼接（插入）压缩域中的Ad音频流的系统和方法，其中允许可变的早期传送Ad音频流和可变比特率，而不产生音频失真，毛刺或其他数字伪像或错误， 在所得到的音频流中被公开。 本系统和方法提供了一种拼接延迟缓冲器，其将前五个Ad音频帧延迟，直到主音频流的最后一帧传输，但在拼接时间之前。 随后的广告音频帧被延迟固定量，其中固定量大于主音频流的帧延迟，以允许容易地将主音频流连接起来。

公开(公告)号：US20050022253A1

公开(公告)日：2005-01-27

申请号：US10744271

申请日：2003-12-23

申请人： Jingyang Chen ,  Robert Nemiroff

发明人： Jingyang Chen ,  Robert Nemiroff

IPC分类号： H04N7/025 ,  H04N7/10 ,  H04N7/16 ,  H04N7/24

CPC分类号： H04N21/2335 ,  H04N21/23424 ,  H04N21/44016 ,  H04N21/8106 ,  H04N21/812

摘要： A system and method for audio splicing (insertion) of an Ad audio stream in the compressed domain, where variable early delivery of the Ad audio stream and variable bit rate are allowed, without creating audio distortion, glitches, or other digital artefacts or errors, in the resultant audio stream is disclosed. The present system and method provides for a splice delay buffer which delays the first five Ad audio frames until transmission of the last frame of the primary audio stream, but before the splice time. Subsequent Ad audio frames are delayed by a fixed amount, where the fixed amount is greater than the frame delay of the primary audio stream, to allow for ease of splice back to the primary audio stream.

摘要翻译： 用于音频拼接（插入）压缩域中的Ad音频流的系统和方法，其中允许可变的早期传送Ad音频流和可变比特率，而不产生音频失真，毛刺或其他数字伪像或错误， 在所得到的音频流中被公开。 本系统和方法提供了一种拼接延迟缓冲器，其将前五个Ad音频帧延迟，直到主音频流的最后一帧传输，但在拼接时间之前。 随后的广告音频帧被延迟固定量，其中固定量大于主音频流的帧延迟，以允许容易地将主音频流连接起来。