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1. 发明授权

US09300984B1 Independent processing of data streams in codec 有权
标题翻译：编解码器中数据流的独立处理
公开(公告)号：US09300984B1
公开(公告)日：2016-03-29
申请号：US13622794
申请日：2012-09-19
申请人： MATROX GRAPHICS INC.
发明人： Jean-Jacques Ostiguy
IPC分类号： H04N19/88 , H04N19/42 , H04N19/423 , H04N19/43 , H04N19/433 , G06T1/60
CPC分类号： H04N19/136 , G06T1/60 , H04N19/13 , H04N19/184 , H04N19/42 , H04N19/423 , H04N19/43 , H04N19/433 , H04N19/439 , H04N19/463 , H04N19/517 , H04N19/61 , H04N19/70 , H04N19/88 , H04N19/91
摘要： There is described herein a system and method for processing data streams in a codec having multiple modules, whereby each module may process macroblocks using its own designated processing order. The processing order of a first module may differ from the processing order of a second module.
摘要翻译：这里描述了用于处理具有多个模块的编解码器中的数据流的系统和方法，由此每个模块可以使用其自己指定的处理顺序处理宏块。第一模块的处理顺序可以不同于第二模块的处理顺序。

2. 发明授权

US10003803B1 Motion-based adaptive quantization 有权
公开(公告)号：US10003803B1
公开(公告)日：2018-06-19
申请号：US15412818
申请日：2017-01-23
申请人： MATROX GRAPHICS INC.
发明人： Jean-Jacques Ostiguy , Simon Garneau , Bernard Antaki , Alain Champenois , Khalil Mawassi , Nicolas Jean
IPC分类号： H04N11/02 , H04N19/124 , H04N19/172 , H04N19/51
CPC分类号： H04N19/124 , H04N19/137 , H04N19/172 , H04N19/176 , H04N19/51
摘要： A method and apparatus for compressing a data stream comprising a plurality of pictures are described. A first quantization parameter (QP) from a plurality of QPs is determined, for a static region in a current picture. The plurality of QPs change in accordance with a multi-step change from a start QP to a target QP and each one of the plurality of QPs is to be applied to a respective one from successive static regions in successive pictures. In response to determining that the static region is to be compressed based upon an inter prediction mode, compression of the static region is caused based upon the first QP; and in response to determining that the static region is to be compressed based upon an intra prediction mode, compression of the static region is caused based upon a minimum QP.

3. 发明授权

US09047669B1 Bit rate control for data compression 有权
标题翻译：数据压缩的比特率控制
公开(公告)号：US09047669B1
公开(公告)日：2015-06-02
申请号：US13623557
申请日：2012-09-20
申请人： MATROX GRAPHICS INC.
发明人： Jean-Jacques Ostiguy , Nicolas Jean , Simon Garneau , Alain Champenois , Mathieu Girard
IPC分类号： G06K9/36 , G06K9/46 , G06T9/00
CPC分类号： G06T9/005 , H04N19/124 , H04N19/149 , H04N19/174
摘要： There is described herein a method and system for dynamically controlling the bit rate of a codec during image data compression by analyzing information output by a first module that processes the group of macroblocks as part of the compression scheme, and configuring a second module to process the group of macroblocks according to this analysis.
摘要翻译：这里描述了一种用于在图像数据压缩期间通过分析处理作为压缩方案的一部分的宏块组处理的第一模块输出的信息来动态地控制编解码器的比特率的方法和系统，以及配置第二模块来处理根据这个分析的一组宏块。

4. 发明授权

US10523958B1 Parallel compression of image data in a compression device 有权
公开(公告)号：US10523958B1
公开(公告)日：2019-12-31
申请号：US16228625
申请日：2018-12-20
申请人： Matrox Graphics Inc.
发明人： Nicolas Jean , Mathieu Girard , Jean-Jacques Ostiguy
IPC分类号： H04N19/436 , H04N19/12 , H04N19/172 , H04N19/146 , H04N19/196 , H04N19/80
摘要： Method and apparatus of compressing a stream of pictures in parallel in a compression device, where the compression device includes at least a first and a second component, are described. A first portion of a first picture of a stream of pictures is processed in the first component of the compression device, while a second portion of a second picture of the stream of pictures is simultaneously processed in the second component of the compression device according to partial compression statistics associated with the second picture, where the partial compression statistics result from the processing of the second picture in the compression device when compression of the second picture is not yet completed.

5. 发明授权

US10360695B1 Method and an apparatus for enabling ultra-low latency compression of a stream of pictures 有权
公开(公告)号：US10360695B1
公开(公告)日：2019-07-23
申请号：US15611558
申请日：2017-06-01
申请人： MATROX GRAPHICS INC.
发明人： Nicolas Jean , Alain Champenois , Jean-Jacques Ostiguy , Mathieu Girard , Khalil Mawassi
IPC分类号： G06T9/00 , H04N19/10 , H04N19/94 , H04N19/124 , H04N19/176
摘要： A method and apparatus for enabling low latency compression of a stream of pictures are described. A first set of static regions of a current picture from the plurality of pictures is determined, where each region from the first set is static. A second set of regions of the current picture is determined, where the second set includes all regions of the current picture that are not included in the first set. Compression of the first set of regions is performed based on values of a first quantization parameter determined by a MAQ mechanism. The MAQ mechanism is operative to dynamically increase the compression quality of static regions. Compression of the second set of regions is performed based on values of a second quantization parameter determined by a rate control mechanism. The rate control mechanism is operative to compress the data stream according to a target bit rate.

6. 发明授权

US09665740B1 Method and system for cryptographically securing a graphics system 有权
公开(公告)号：US09665740B1
公开(公告)日：2017-05-30
申请号：US14262868
申请日：2014-04-28
申请人： Matrox Graphics Inc.
发明人： Jean-Jacques Ostiguy , André Testa
IPC分类号： G06F21/85 , G06T1/60
CPC分类号： G06F21/85 , G06F21/84 , G06F2221/2107 , G06T1/60 , G09G5/006 , G09G5/363 , G09G2360/06 , H04N5/913 , H04N2005/91364
摘要： A system and method for cryptographically securing a graphics system connectable via an external bus to a computing system, the graphics system including a graphics processor, a video memory and a memory controller for controlling the flow of data to and from the video memory. The graphics system further includes a copy engine for copying data between a system memory of the computing system and the video memory, where this copy engine acts independently of the graphics processor of the graphics system. The present invention enables the copy engine of the graphics system to decrypt encrypted data in the course of copying data from the system memory to the video memory and to encrypt unencrypted data in the course of copying data from the video memory to the system memory. Thus, cryptographic protection of secure content may be assured by the graphics system without the excessive usage of its primary resources for this non-graphical purpose.

7. 发明授权

US08963934B1 Processing multiple regions on an image in a graphics display system 有权
标题翻译：在图形显示系统中处理图像的多个区域
公开(公告)号：US08963934B1
公开(公告)日：2015-02-24
申请号：US13717058
申请日：2012-12-17
申请人： Matrox Graphics Inc.
发明人： Marc-Antoine Massicotte , Christian Toutant , Stephane Tremblay
IPC分类号： G06F13/30 , G09G5/00
CPC分类号： G09G5/001 , G06F3/1423 , G06F3/1431 , G06F3/1438 , G09G5/026 , G09G5/06 , G09G5/14 , G09G5/363
摘要： There is described a method and circuit for independently processing a plurality of regions of an image to be displayed on a display device. The circuit comprises a plurality of transformation modules; a multiplexer having a plurality of inputs and an output for selectively transmitting one of the output values from one of the plurality of transformation modules, and a selector line; and a selection module operatively connected to the selector line of the multiplexer and configured to determine a position of the pixel in the image and identify a transformation module corresponding to a region with a highest priority level for a pixel position, and cause the multiplexer to output the output value from the identified transformation module as the post-transformation pixel for display on the display device.
摘要翻译：描述了一种用于独立处理要在显示装置上显示的图像的多个区域的方法和电路。该电路包括多个变换模块; 具有多个输入的多路复用器和用于选择性地从多个变换模块之一输出输出值之一的输出端和选择线; 以及选择模块，其可操作地连接到所述多路复用器的选择器线，并且被配置为确定所述图像中的像素的位置，并且识别对应于像素位置具有最高优先级的区域的变换模块，并且使所述多路复用器输出来自所识别的变换模块的输出值作为在显示装置上显示的后变换像素。

8. 发明授权

US10785485B1 Adaptive bit rate control for image compression 有权
公开(公告)号：US10785485B1
公开(公告)日：2020-09-22
申请号：US15143069
申请日：2016-04-29
申请人： Matrox Graphics Inc.
发明人： Mathieu Girard , Nicolas Jean , Alain Champenois , Jean-Jacques Ostiguy , Sergiu Bogdan Nicolescu
IPC分类号： H04N19/146 , H04N19/196 , H04N19/177 , H04N19/124
摘要： A method and apparatus for enabling compression of a stream of pictures according to a target bit rate are described. A first configuration parameter for a first portion is determined based at least in part on a first relative weight of the first portion with respect to a first set of N portions, where the first set of N portions includes the first portion and N-1 portions which succeed the first portion. A second configuration parameter for a second portion of a second picture is determined based at least in part on a second relative weight of the second portion with respect to a second set of M portions of pictures, where the second set of M portions includes a subset of the N-1 portions from the first set and zero or more additional portions of pictures from the stream of pictures.

9. 发明授权

US10171825B1 Parallel compression of image data in a compression device 有权
公开(公告)号：US10171825B1
公开(公告)日：2019-01-01
申请号：US15140380
申请日：2016-04-27
申请人： Matrox Graphics Inc.
发明人： Nicolas Jean , Mathieu Girard , Jean-Jacques Ostiguy
IPC分类号： H04N19/436 , H04N19/146 , H04N19/196 , H04N19/172 , H04N19/80 , H04N19/12
摘要： Method and apparatus of compressing a stream of pictures in parallel in a compression device, where the compression device includes at least a first and a second component, are described. A first portion of a first picture of a stream of pictures is processed in the first component of the compression device, while a second portion of a second picture of the stream of pictures is simultaneously processed in the second component of the compression device according to partial compression statistics associated with the second picture, where the partial compression statistics result from the processing of the second picture in the compression device when compression of the second picture is not yet completed.

10. 发明授权

US09621900B1 Motion-based adaptive quantization 有权
公开(公告)号：US09621900B1
公开(公告)日：2017-04-11
申请号：US13670587
申请日：2012-11-07
申请人： MATROX GRAPHICS INC.
发明人： Jean-Jacques Ostiguy , Simon Garneau , Bernard Antaki , Alain Champenois
IPC分类号： H04N7/32 , H04N19/136 , H04N19/61
CPC分类号： H04N19/136 , G06T1/60 , H04N19/13 , H04N19/184 , H04N19/42 , H04N19/423 , H04N19/43 , H04N19/433 , H04N19/439 , H04N19/463 , H04N19/517 , H04N19/61 , H04N19/70 , H04N19/88 , H04N19/91
摘要： There is described herein motion-based adaptive quantization for compressing video streams. Motionless portions of pictures are detected and the compression quality of these portions is increased while the compression quality of non-motionless portions is decreased. The QP of a portion of image data, such as a macroblock, is modified for successive motionless portions from a start QP to a target QP in accordance with a multi-step change.

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