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1. 发明申请

US20210314620A1 Image Compression 有权
公开(公告)号：US20210314620A1
公开(公告)日：2021-10-07
申请号：US16956980
申请日：2018-12-17
申请人： DISPLAYLINK (UK) LIMITED
发明人： Sebastian Matysik
IPC分类号： H04N19/635 , H04N19/423 , H04N19/91 , H04N19/186 , G06T1/20 , G06F3/147
摘要： A method of processing image data for transmittal to a display device involves receiving a frame of image data, the frame being divided into tile groups composed of tiles of pixels, each having a number of colour component values of a first colour space. Each tile includes a number of colour component planes of the first colour space having the colour component values for the pixels forming the tile. Each tile group is processed in an execution unit, formed by arithmetic logic units (ALUs) and a local shared memory, where each ALU includes dedicated register space for use solely by the ALU, and each tile of each tile group is processed by a number of the ALUs of the execution unit. Each ALU performs a reversible colour transformation (SI) on the colour component values from the first colour space to a second colour space and discards the remaining colour component values and then performs a discrete wavelet transformation (S2) on the colour component values of one colour component plane of the second colour space to produce wavelet coefficients, which are quantized (S3) and entropy encoded (S4) into variable length codes. The variable length codes for all the tiles of the tile group are assembled together for transmittal to a display device. Each ALU stores the data at each stage of the processing in its dedicated register space but not in the local shared memory of the execution unit.

2. 发明授权

US09269334B2 Display system 有权
标题翻译：显示系统
公开(公告)号：US09269334B2
公开(公告)日：2016-02-23
申请号：US14401083
申请日：2013-05-15
申请人： DisplayLink (UK) Limited
发明人： Piotr Czapla , Sebastian Matysik
IPC分类号： G06F13/00 , G09G5/00 , G09G5/39 , G06F3/14 , G09G5/395
CPC分类号： G09G5/39 , G06F3/1431 , G09G5/006 , G09G5/395 , G09G2360/12 , G09G2360/18
摘要： A display system comprises a processing device connected to a plurality of display devices, the processing device comprising a processor connected to a system memory and to a graphics processing unit, the graphics processing unit comprising a graphics processor connected to a video memory. A method of operating the system comprises the steps of maintaining a system frame buffer in system memory, creating a shared primary surface in video memory for an additional display device not controlled by the graphics processing unit, rendering the contents of the system frame buffer onto the shared primary surface, rendering any and all directly rendered applications onto the shared primary surface, maintaining a second frame buffer in system memory, copying at least some of the content of the shared primary surface to the second frame buffer, and outputting at least some of the content of the second frame buffer to the additional display device.
摘要翻译：显示系统包括连接到多个显示设备的处理设备，所述处理设备包括连接到系统存储器和图形处理单元的处理器，所述图形处理单元包括连接到视频存储器的图形处理器。一种操作该系统的方法包括以下步骤：在系统存储器中保持系统帧缓冲器，在视频存储器中创建共享主表面，用于不由图形处理单元控制的附加显示设备，将系统帧缓冲器的内容呈现到共享主表面，将任何和所有直接呈现的应用呈现到共享主表面上，在系统存储器中维护第二帧缓冲器，将共享主表面的至少一些内容复制到第二帧缓冲器，以及输出至少一些第二帧缓冲器的内容到附加显示设备。

3. 发明授权

US11509935B2 Image compression 有权
公开(公告)号：US11509935B2
公开(公告)日：2022-11-22
申请号：US16956980
申请日：2018-12-17
申请人： DISPLAYLINK (UK) LIMITED
发明人： Sebastian Matysik
IPC分类号： G09G5/02 , H04N19/635 , H04N19/186 , H04N19/423 , H04N19/91 , G06F3/147 , G06T1/20 , H04N19/436
摘要： A method of processing image data for transmittal to a display device involves receiving a frame of image data, the frame being divided into tile groups composed of tiles of pixels, each having a number of colour component values of a first colour space. Each tile includes a number of colour component planes of the first colour space having the colour component values for the pixels forming the tile. Each tile group is processed in an execution unit, formed by arithmetic logic units (ALUs) and a local shared memory, where each ALU includes dedicated register space for use solely by the ALU, and each tile of each tile group is processed by a number of the ALUs of the execution unit. Each ALU performs a reversible colour transformation (SI) on the colour component values from the first colour space to a second colour space and discards the remaining colour component values and then performs a discrete wavelet transformation (S2) on the colour component values of one colour component plane of the second colour space to produce wavelet coefficients, which are quantized (S3) and entropy encoded (S4) into variable length codes. The variable length codes for all the tiles of the tile group are assembled together for transmittal to a display device. Each ALU stores the data at each stage of the processing in its dedicated register space but not in the local shared memory of the execution unit.

4. 发明授权

US11805278B2 Image compression 有权
公开(公告)号：US11805278B2
公开(公告)日：2023-10-31
申请号：US18047423
申请日：2022-10-18
申请人： DISPLAYLINK (UK) LIMITED
发明人： Sebastian Matysik
IPC分类号： G09G5/02 , H04N19/635 , H04N19/186 , H04N19/423 , H04N19/91 , G06F3/147 , G06T1/20 , H04N19/436
CPC分类号： H04N19/635 , G06F3/147 , G06T1/20 , H04N19/186 , H04N19/423 , H04N19/91 , H04N19/436
摘要： A method of processing image data for transmittal to a display device involves receiving a frame of image data, the frame being divided into tile groups composed of tiles of pixels, each having a number of colour component values of a first colour space. Each tile includes a number of colour component planes of the first colour space having the colour component values for the pixels forming the tile. Each tile group is processed in an execution unit, formed by arithmetic logic units (ALUs) and a local shared memory, where each ALU includes dedicated register space for use solely by the ALU, and each tile of each tile group is processed by a number of the ALUs of the execution unit. Each ALU performs a reversible colour transformation (S1) on the colour component values from the first colour space to a second colour space and discards the remaining colour component values and then performs a discrete wavelet transformation (S2) on the colour component values of one colour component plane of the second colour space to produce wavelet coefficients, which are quantized (S3) and entropy encoded (S4) into variable length codes. The variable length codes for all the tiles of the tile group are assembled together for transmittal to a display device. Each ALU stores the data at each stage of the processing in its dedicated register space but not in the local shared memory of the execution unit.

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