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1. 发明申请

WO0235853A3 TRANSCODER-MULTIPLEXER (TRANSMUX) SOFTWARE ARCHITECTURE 审中-公开
标题翻译： TRANSCODER-MULTIPLEXER（TRANSMUX）软件体系结构
公开(公告)号：WO0235853A3
公开(公告)日：2002-10-31
申请号：PCT/US0132105
申请日：2001-10-15
申请人： GEN INSTRUMENT CORP , EIFRIG ROBERT O , LING FAN , CHEN XUEMIN
发明人： EIFRIG ROBERT O , LING FAN , CHEN XUEMIN
IPC分类号： H04N7/26 , H04N7/24 , H04N7/50
CPC分类号： H04N19/40
摘要： A digital video transcoder-multiplexer (transmux) architecture that is fully software-implemented. The transmux (200) includes transcoder processing elements (TPEs) (240) that may use a very long instruction word (VLIW) media processor (105) for performing transcoding, and de-assembly and re-assembly at a transport stream level, and a co-processor (131) for providing de-assembly and re-assembly at an elementary stream level. The processors operate in parallel, at least in part, to optimize throughput and provide processing load balancing. A transmux architecture that is fully software implemented is provided to allow upgrading to handle new functions, fix hardware or software problems, test new processes, adapt to changing customer requirements, and so forth.
摘要翻译：一种完全由软件实现的数字视频转码器 - 多路复用器（反转）架构。转换器（200）包括可以使用非常长的指令字（VLIW）媒体处理器（105）来执行转码以及在传输流级别解组装和重新组装的转码器处理元件（TPE）（240），以及协处理器（131），用于在基本流级提供拆组和重组。处理器至少部分并行运行，以优化吞吐量并提供处理负载平衡。提供完全由软件实现的transmux体系结构，允许升级以处理新功能，修复硬件或软件问题，测试新流程，适应不断变化的客户需求等等。

2. 发明申请

WO0070877A3 METHOD AND ARCHITECTURE FOR CONVERTING MPEG-2 4:2:2-PROFILE BITSTREAMS INTO MAIN-PROFILE BITSTREAMS 审中-公开
标题翻译：将MPEG-2 4：2：2配置文件转换为主配置文件的方法和架构
公开(公告)号：WO0070877A3
公开(公告)日：2001-06-28
申请号：PCT/US0003870
申请日：2000-02-16
申请人： GEN INSTRUMENT CORP
发明人： CHEN XUEMIN , WANG LIMIN , LUTHRA AJAY , EIFRIG ROBERT O
IPC分类号： G06T9/00 , H04N7/26
CPC分类号： H04N19/186 , H04N19/40
摘要： A system for converting the color format of a digital video bitstream. The system accounts for the allowable formats of the pre- and post-conversion bitstreams, including quantizer (355) precision level, and whether luma and chroma data have separate quantization matrices (385, 390), or share a common quantization matrix. In a particular implementation, an MPEG-2 4:2:2P bitstream having a color format of 4:2:2 or 4:2:0 is converted to an MP bitstream having a color format of 4:2:0. Coding efficiencies are achieved by using the luma quantization matrix (390) to re-quantize the chroma data, and re-using luma motion vectors MV for performing motion compensation (320, 325, 510) of the chroma data. Further efficiencies can be achieved by representing a 4:2:2 reference picture in a 4:2:0 format for converting intercoded frames, and changing the position of a pixel downsizing filter (340) and clip function (335). Adjustment (130, 230, 382), of the quantization precision is provided as required. A transcoding function (800) can also be achieved.
摘要翻译：一种用于转换数字视频比特流的颜色格式的系统。系统考虑了转换前和转换后比特流的允许格式，包括量化器（355）精度级别，以及亮度和色度数据是否具有单独的量化矩阵（385,390），或共享公共量化矩阵。在具体实现中，将具有4:2:2或4:2:0的颜色格式的MPEG-2 4：2：2P比特流转换为具有4:2:0的颜色格式的MP比特流。通过使用亮度量化矩阵（390）来重新量化色度数据并重新使用亮度运动矢量MV来执行色度数据的运动补偿（320,325,510）来实现编码效率。通过以4：2：0格式表示4：2：2参考图像来转换帧间编码帧，以及改变像素缩小滤波器（340）和剪辑功能（335）的位置，可以实现更高的效率。根据需要提供量化精度的调整（130,230,382）。还可以实现代码转换功能（800）。

3. 发明公开

EP2213006A4 METHOD AND APPARATUS FOR PERFORMING MOTION ESTIMATION 失效转让
标题翻译：方法和一种用于执行MOVING估计
公开(公告)号：EP2213006A4
公开(公告)日：2011-03-02
申请号：EP08848745
申请日：2008-10-29
申请人： GEN INSTRUMENT CORP
发明人： PANUSOPONE KRIT , CHATTERJEE CHANCHAL , EIFRIG ROBERT O , LUTHRA AJAY K , WANG LIMIN
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/137 , H04N19/105 , H04N19/139 , H04N19/157 , H04N19/176 , H04N19/19 , H04N19/196 , H04N19/197 , H04N19/51 , H04N19/513 , H04N19/52 , H04N19/53 , H04N19/533 , H04N19/56 , H04N19/567 , H04N19/57

4. 发明专利

BRPI9911289B1 Aparelho codificador, método de codificação, aparelho decodificador e método para produzir um fluxo de bits 未知
公开(公告)号：BRPI9911289B1
公开(公告)日：2015-06-16
申请号：BR9911289
申请日：1999-05-28
申请人： GEN INSTRUMENT CORP
发明人： CHEN XUEMIN , EIFRIG ROBERT O
IPC分类号： H04N7/26 , H04N19/61 , G06T9/00 , H04N7/50

5. 发明专利

CA2364478C METHOD AND ARCHITECTURE FOR CONVERTING MPEG-2 4:2:2-PROFILE BITSTREAMS INTO MAIN-PROFILE BITSTREAMS 未知
公开(公告)号：CA2364478C
公开(公告)日：2011-07-05
申请号：CA2364478
申请日：2000-02-16
申请人： GEN INSTRUMENT CORP
发明人： CHEN XUEMIN , WANG LIMIN , LUTHRA AJAY , EIFRIG ROBERT O
IPC分类号： H04N7/26 , G06T9/00
摘要： A system for converting the color format of a digital video bitstream. The system accounts for the allowable formats of the pre- and post-conversion bitstreams, including quantizer (355) precision level, and whether luma and chroma data have separate quantization matrices (385, 390), or share a common quantization matrix. In a particular implementation, an MPEG-2 4:2:2P bitstream having a color format of 4:2:2 or 4:2:0 is converted to an MP bitstream having a color format of 4:2:0. Coding efficiencies are achieved by using the luma quantization matrix (390) to re-quantize the chroma data, and re-using luma motion vectors MV for performing motion compensation (320, 325, 510) of the chroma data. Further efficiencies can be achieved by representing a 4:2:2 reference picture in a 4:2:0 format for converting intercoded frames, and changing the position of a pixel downsizing filter (340) and clip function (335). Adjustment (130, 230, 382), of the quantization precision is provided as required. A transcoding function (800) can also be achieved.

6. 发明专利

CA2230567C MOTION ESTIMATION AND COMPENSATION OF VIDEO OBJECT PLANES FOR INTERLACED DIGITAL VIDEO 未知
公开(公告)号：CA2230567C
公开(公告)日：2010-07-06
申请号：CA2230567
申请日：1998-02-25
申请人： GEN INSTRUMENT CORP
发明人： EIFRIG ROBERT O , CHEN XUEMIN , LUTHRA AJAY
IPC分类号： H04N7/32 , H04N7/50 , G06T9/00 , H03M7/36 , H04N7/26 , H04N7/30 , H04N7/36 , H04N19/593
摘要： A motion estimation and compensation technique is provided for interlaced digital video such as video object planes (VOPs). Predictor motion vectors for use in differentially encoding a current field coded macroblock (700) are obtained using the median of motion vectors (MV1, MV2, MV3) of surrounding blocks or macroblocks (712, 722, 732). When a surrounding macroblock (820) is itself interlaced coded, an average motion vector for that macroblock is used, with fractional pixel values being mapped to the half-pixel. When the current block (912) is not interlaced coded but a surrounding block (820) is, the field motion vectors may be used individually or averaged. In a repetitive padding technique for an interlaced coded VOP (1,010), the even (0, 2, ..., 14) and odd (1, 3, ..., 15) lines of the VOP and surrounding block (1,000) are grouped. Within each field (1,210, 1,220), exterior pixels (1,6) are padded by setting them to the value of the nearest boundary pixel (0,6), or to an average of two boundary pixels (0,6; 1,7). The lines are then reordered to provide a single padded reference VOP image.

7. 发明专利

CA2230422C INTRA-MACROBLOCK DC AND AC COEFFICIENT PREDICTION FOR INTERLACED DIGITAL VIDEO 未知
公开(公告)号：CA2230422C
公开(公告)日：2006-01-31
申请号：CA2230422
申请日：1998-02-25
申请人： GEN INSTRUMENT CORP
发明人： EIFRIG ROBERT O , CHEN XUEMIN , LUTHRA AJAY
IPC分类号： H04N7/50 , H04N19/625 , G06T9/00 , H04N7/26 , H04N7/30 , H04N7/32 , H04N7/36 , H04N19/176 , H04N19/50 , H04N19/59 , H04N19/593
摘要： DC and AC DCT transform coefficients of an INTRA coded block (310) are differentially encoded by selecting predictor DC and AC coefficients from a left-hand neighboring block (320) and a top neighboring block (340). Each block (310, 320, 340) is coded according to a frame mode, a reordered field mode, and a non-reordered field mode. The AC predictor block is selected according to the respective coding modes of the blocks, and the block in which a DC predictor resides. The top block (340) is selected as an AC predictor when the top block (340) and current block (310) are both reordered field mode, or both frame mode and/or non-reordered field mode, and the DC predictor resides in the top block. Zeroed AC spatial transform coefficients are used in place of the AC spatial transform coefficients from the selected block when the selected block is not INTRA coded, or does not reside in the same Video Object Plane (VOP) as the current block. DC coefficients may be non-linearly quantized.

8. 发明专利

CA2425921A1 TRANSCODER-MULTIPLEXER (TRANSMUX) SOFTWARE ARCHITECTURE 未知
公开(公告)号：CA2425921A1
公开(公告)日：2002-05-02
申请号：CA2425921
申请日：2001-10-15
申请人： GEN INSTRUMENT CORP
发明人： EIFRIG ROBERT O , LING FAN , CHEN XUEMIN
IPC分类号： H04N7/26 , H04N7/24 , H04N7/50
摘要： A digital video transcoder-multiplexer (transmux) architecture that is fully software-implemented. The transmux (200) includes transcoder processing elements (TPEs) (240) that may use a very long instruction word (VLIW) media processor (105) for performing transcoding, and de-assembly and re-assembly at a transport stream level, and a co-processor (131) for providing de-assembly and re-assembly at an elementary stream level. The processors operate in parallel, at least in part, to optimize throughput and provide processing lo ad balancing. A transmux architecture that is fully software implemented is provided to allow upgrading to handle new functions, fix hardware or softwar e problems, test new processes, adapt to changing customer requirements, and s o forth.

9. 发明专利

AU728756B2 Motion estimation and compensation of video object planes for interlaced digital video 未知
公开(公告)号：AU728756B2
公开(公告)日：2001-01-18
申请号：AU5740198
申请日：1998-03-06
申请人： GEN INSTRUMENT CORP
发明人： EIFRIG ROBERT O , CHEN XUEMIN , LUTHRA AJAY
IPC分类号： H04N7/32 , G06T9/00 , H03M7/36 , H04N7/26 , H04N7/30 , H04N7/36 , H04N7/50 , H04N19/593 , H04N19/94 , H04N7/28

10. 发明专利

NO980948D0 未知
公开(公告)号：NO980948D0
公开(公告)日：1998-03-05
申请号：NO980948
申请日：1998-03-05
申请人： GEN INSTRUMENT CORP
发明人： EIFRIG ROBERT O , CHEN XUEMIN , LUTHRA AJAY
IPC分类号： H04N19/625 , G06T9/00 , H04N7/26 , H04N7/30 , H04N7/32 , H04N7/36 , H04N7/50 , H04N19/176 , H04N19/50 , H04N19/59 , H04N19/593 , H04N
摘要： DC and AC DCT transform coefficients of an INTRA coded block (310) are differentially encoded by selecting predictor DC and AC coefficients from a left-hand neighboring block (320) and a top neighboring block (340). Each block (310, 320, 340) is coded according to a frame mode, a reordered field mode, and a non-reordered field mode. The AC predictor block is selected according to the respective coding modes of the blocks, and the block in which a DC predictor resides. The top block (340) is selected as an AC predictor when the top block (340) and current block (310) are both reordered field mode, or both frame mode and/or non-reordered field mode, and the DC predictor resides in the top block. Zeroed AC spatial transform coefficients are used in place of the AC spatial transform coefficients from the selected block when the selected block is not INTRA coded, or does not reside in the same Video Object Plane (VOP) as the current block. DC coefficients may be non-linearly quantized.

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