公开(公告)号：US08977880B2

公开(公告)日：2015-03-10

申请号：US13567098

申请日：2012-08-06

Applicant: Kuo-Han Chang ,  Chun-Wei Chan ,  Ming-Cheng Liu ,  Zong-Pu Qi

Inventor： Kuo-Han Chang ,  Chun-Wei Chan ,  Ming-Cheng Liu ,  Zong-Pu Qi

IPC: G06F1/32

CPC classification number: G06F1/3215 ,  G06F1/324 ,  G06F1/3287 ,  Y02D10/126 ,  Y02D10/171

Abstract: A multi-core processor system, a dynamic power management method thereof and a control apparatus thereof are provided. In the method, a workload of a multi-core processor during a runtime stage is obtained. Next, a hot-plug operation is respectively performed on a plurality of slave cores according to the workload and a working state of each slave core. Then, a bus master status and the working state of a boot core are monitored to determine whether to power off the boot core, in which the bus master status is generated by combining a plurality of device statuses reflected by a plurality of peripheral devices. Finally, when the bus master status is determined as idle, the boot core is powered off.

Abstract translation: 提供了一种多核处理器系统，其动态功率管理方法及其控制装置。 在该方法中，获得运行时阶段期间的多核处理器的工作负荷。 接下来，根据每个从核的工作量和工作状态，分别对多个从核进行热插拔操作。 然后，监视总线主机状态和引导核心的工作状态，以确定是否通过组合由多个外围设备反射的多个设备状态来生成总线主机状态来关闭引导核心。 最后，当总线主机状态被确定为空闲时，引导核心断电。

公开(公告)号：US20100189179A1

公开(公告)日：2010-07-29

申请号：US12362427

申请日：2009-01-29

Applicant: Chuang Gu ,  Chun-Wei Chan ,  William Chen ,  Stacey Spears ,  Thomas W. Holcomb

Inventor： Chuang Gu ,  Chun-Wei Chan ,  William Chen ,  Stacey Spears ,  Thomas W. Holcomb

IPC: H04N11/02

CPC classification number: H04N19/436 ,  H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/43 ,  H04N19/51

Abstract: A video encoder uses previously calculated motion information for inter frame coding to achieve faster computation speed for video compression. In a multi bit rate application, motion information produced by motion estimation for inter frame coding of a compressed video bit stream at one bit rate is passed on to a subsequent encoding of the video at a lower bit rate. The video encoder chooses to use the previously calculated motion information for inter frame coding at the lower bit rate if the video resolution is unchanged. A multi core motion information pre-calculation produces motion information prior to encoding by dividing motion estimation of each inter frame to separate CPU cores.

Abstract translation: 视频编码器使用先前计算的帧间编码运动信息来实现视频压缩的更快的计算速度。 在多比特率应用中，通过用于以一个比特率的压缩视频比特流的帧间编码的运动估计产生的运动信息被传递到较低比特率的视频的后续编码。 如果视频分辨率不变，则视频编码器选择使用先前计算的运动信息用于较低比特率的帧间编码。 多核心运动信息预计算在编码之前通过将每个帧间的运动估计划分成分离的CPU核心来产生运动信息。

公开(公告)号：US08396114B2

公开(公告)日：2013-03-12

申请号：US12362420

申请日：2009-01-29

Applicant: Chuang Gu ,  Chun-Wei Chan ,  William Chen ,  Stacey Spears ,  Thomas W. Holcomb ,  Chih-Lung Lin ,  Sanjeev Mehrotra

Inventor： Chuang Gu ,  Chun-Wei Chan ,  William Chen ,  Stacey Spears ,  Thomas W. Holcomb ,  Chih-Lung Lin ,  Sanjeev Mehrotra

IPC: H04N7/12 ,  G06K9/36 ,  G06F11/00

CPC classification number: H04N21/4621 ,  H04N19/124 ,  H04N19/14 ,  H04N19/149 ,  H04N19/177 ,  H04N19/61 ,  H04N19/85 ,  H04N21/23439 ,  H04N21/6373 ,  H04N21/8456

Abstract: A video encoding system encodes video streams for multiple bit rate video streaming using an approach that permits the encoded bit rate to vary subject to a peak bit rate and average bit rate constraints for higher quality streams, while a bottom bit rate stream is encoded to achieve a constant chunk rate. The video encoding system also dynamically decides an encoding resolution for segments of the multiple bit rate video streams that varies with video complexity so as to achieve a better visual experience for multiple bit rate streaming.

Abstract translation: 视频编码系统使用允许编码比特率根据高质量流的峰比特率和平均比特率约束而变化的方法对多个比特率视频流的视频流进行编码，而底部比特率流被编码以实现 恒定的块率。 视频编码系统还动态地决定了随着视频复杂度而变化的多个比特率视频流的段的编码分辨率，从而为多个比特率流实现更好的视觉体验。

公开(公告)号：US08311115B2

公开(公告)日：2012-11-13

申请号：US12362427

申请日：2009-01-29

Applicant: Chuang Gu ,  Chun-Wei Chan ,  William Chen ,  Stacey Spears ,  Thomas W. Holcomb

Inventor： Chuang Gu ,  Chun-Wei Chan ,  William Chen ,  Stacey Spears ,  Thomas W. Holcomb

IPC: H04N7/12

CPC classification number: H04N19/436 ,  H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/43 ,  H04N19/51

Abstract: A video encoder uses previously calculated motion information for inter frame coding to achieve faster computation speed for video compression. In a multi bit rate application, motion information produced by motion estimation for inter frame coding of a compressed video bit stream at one bit rate is passed on to a subsequent encoding of the video at a lower bit rate. The video encoder chooses to use the previously calculated motion information for inter frame coding at the lower bit rate if the video resolution is unchanged. A multi core motion information pre-calculation produces motion information prior to encoding by dividing motion estimation of each inter frame to separate CPU cores.

Abstract translation: 视频编码器使用先前计算的帧间编码运动信息来实现视频压缩的更快的计算速度。 在多比特率应用中，通过用于以一个比特率的压缩视频比特流的帧间编码的运动估计产生的运动信息被传递到较低比特率的视频的后续编码。 如果视频分辨率不变，则视频编码器选择使用先前计算的运动信息用于较低比特率的帧间编码。 多核心运动信息预计算在编码之前通过将每个帧间的运动估计划分成分离的CPU核心来产生运动信息。

公开(公告)号：US20110305273A1

公开(公告)日：2011-12-15

申请号：US12814060

申请日：2010-06-11

Applicant: Yaming He ,  Florin Folta ,  Chun-Wei Chan ,  Stacey Spears ,  Chuang Gu

Inventor： Yaming He ,  Florin Folta ,  Chun-Wei Chan ,  Stacey Spears ,  Chuang Gu

IPC: H04N7/26

CPC classification number: H04N19/436 ,  H04N19/30

Abstract: A multiple bitrate (MBR) video encoding management tool utilizes available processing units for parallel MBR video encoding. For example, instead of focusing only on multi-threading of encoding tasks for a single picture or group of pictures (GOP), the management tool parallelizes the encoding of multiple GOPs between different processing units and/or different computing systems. With this parallel MBR video encoding architecture, different GOPs can be encoded in parallel. To facilitate such parallel encoding, data dependencies between GOPs are removed. The management tool can adjust the number of GOPs to encode in parallel on a computing system so as to favor parallelism of encoding for different GOPs at the expense of parallelism of encoding inside a GOP, or vice versa, and thereby set a suitable balance between encoding latency and throughput.

Abstract translation: 多位比特率（MBR）视频编码管理工具利用可用的处理单元进行并行MBR视频编码。 例如，管理工具不是专注于单个图像或图像组（GOP）的编码任务的多线程，而是在不同的处理单元和/或不同的计算系统之间并行化多个GOP的编码。 利用这种并行MBR视频编码架构，可以并行编码不同的GOP。 为了促进这种并行编码，GOP之间的数据依赖性被去除。 管理工具可以在计算系统上调节GOP并行编码的数量，从而以牺牲GOP内编码并行性为代价的优点，对不同的GOP进行编码的平行化，反之亦然，从而在编码之间设置适当的平衡 延迟和吞吐量。

公开(公告)号：US20130179710A1

公开(公告)日：2013-07-11

申请号：US13567098

申请日：2012-08-06

Applicant: Kuo-Han Chang ,  Chun-Wei Chan ,  Ming-Cheng Liu ,  Zong-Pu Qi

Inventor： Kuo-Han Chang ,  Chun-Wei Chan ,  Ming-Cheng Liu ,  Zong-Pu Qi

IPC: G06F1/32

CPC classification number: G06F1/3215 ,  G06F1/324 ,  G06F1/3287 ,  Y02D10/126 ,  Y02D10/171

Abstract: A multi-core processor system, a dynamic power management method thereof and a control apparatus thereof are provided. In the method, a workload of a multi-core processor during a runtime stage is obtained. Next, a hot-plug operation is respectively performed on a plurality of slave cores according to the workload and a working state of each slave core. Then, a bus master status and the working state of a boot core are monitored to determine whether to power off the boot core, in which the bus master status is generated by combining a plurality of device statuses reflected by a plurality of peripheral devices. Finally, when the bus master status is determined as idle, the boot core is powered off.

Abstract translation: 提供了一种多核处理器系统，其动态功率管理方法及其控制装置。 在该方法中，获得运行时阶段期间的多核处理器的工作负荷。 接下来，根据每个从核的工作量和工作状态，分别对多个从核进行热插拔操作。 然后，监视总线主机状态和引导核心的工作状态，以确定是否通过组合由多个外围设备反射的多个设备状态来生成总线主机状态来关闭引导核心。 最后，当总线主机状态被确定为空闲时，引导核心断电。

公开(公告)号：US08270473B2

公开(公告)日：2012-09-18

申请号：US12483577

申请日：2009-06-12

Applicant: William Chen ,  Chun-Wei Chan ,  Stacey Spears ,  Yaming He ,  Florin Folta ,  Chuang Gu ,  King Wei Hor

Inventor： William Chen ,  Chun-Wei Chan ,  Stacey Spears ,  Yaming He ,  Florin Folta ,  Chuang Gu ,  King Wei Hor

IPC: H04B1/66

CPC classification number: H04N19/587 ,  H04N19/124 ,  H04N19/132 ,  H04N19/139 ,  H04N19/14 ,  H04N19/142 ,  H04N19/149 ,  H04N19/164 ,  H04N19/172 ,  H04N19/177 ,  H04N19/194 ,  H04N19/57 ,  H04N19/61

Abstract: A video encoding system encodes video streams for multiple bit rate video streaming using an approach that permits the encoded resolution to vary based, at least in part, on motion complexity. The video encoding system dynamically decides an encoding resolution for segments of the multiple bit rate video streams that varies with video complexity so as to achieve a better visual experience for multiple bit rate streaming. Motion complexity may be considered separately, or along with spatial complexity, in making the resolution decision.

Abstract translation: 视频编码系统使用允许编码分辨率至少部分地基于运动复杂度而变化的方法对多个比特率视频流的视频流进行编码。 视频编码系统动态地决定随着视频复杂度而变化的多个比特率视频流的片段的编码分辨率，以便为多个比特率流媒体实现更好的视觉体验。 运动复杂度可以单独考虑，也可以与空间复杂性一起考虑在决策中。

公开(公告)号：US20100316126A1

公开(公告)日：2010-12-16

申请号：US12483577

申请日：2009-06-12

Applicant: William Chen ,  Chun-Wei Chan ,  Stacey Spears ,  Yaming He ,  Florin Folta ,  Chuang Gu ,  King Wei Hor

Inventor： William Chen ,  Chun-Wei Chan ,  Stacey Spears ,  Yaming He ,  Florin Folta ,  Chuang Gu ,  King Wei Hor

IPC: H04N7/26

CPC classification number: H04N19/587 ,  H04N19/124 ,  H04N19/132 ,  H04N19/139 ,  H04N19/14 ,  H04N19/142 ,  H04N19/149 ,  H04N19/164 ,  H04N19/172 ,  H04N19/177 ,  H04N19/194 ,  H04N19/57 ,  H04N19/61

Abstract: A video encoding system encodes video streams for multiple bit rate video streaming using an approach that permits the encoded resolution to vary based, at least in part, on motion complexity. The video encoding system dynamically decides an encoding resolution for segments of the multiple bit rate video streams that varies with video complexity so as to achieve a better visual experience for multiple bit rate streaming. Motion complexity may be considered separately, or along with spatial complexity, in making the resolution decision.

Abstract translation: 视频编码系统使用允许编码分辨率至少部分地基于运动复杂度而变化的方法对多个比特率视频流的视频流进行编码。 视频编码系统动态地决定随着视频复杂度而变化的多个比特率视频流的片段的编码分辨率，以便为多个比特率流媒体实现更好的视觉体验。 运动复杂度可以单独考虑，也可以与空间复杂性一起考虑在决策中。

公开(公告)号：US20100189183A1

公开(公告)日：2010-07-29

申请号：US12362420

申请日：2009-01-29

Applicant: Chuang Gu ,  Chun-Wei Chan ,  William Chen ,  Stacey Spears ,  Thomas W. Holcomb ,  Chih-Lung Lin ,  Sanjeev Mehrotra

Inventor： Chuang Gu ,  Chun-Wei Chan ,  William Chen ,  Stacey Spears ,  Thomas W. Holcomb ,  Chih-Lung Lin ,  Sanjeev Mehrotra

IPC: H04N7/26

CPC classification number: H04N21/4621 ,  H04N19/124 ,  H04N19/14 ,  H04N19/149 ,  H04N19/177 ,  H04N19/61 ,  H04N19/85 ,  H04N21/23439 ,  H04N21/6373 ,  H04N21/8456

Abstract: A video encoding system encodes video streams for multiple bit rate video streaming using an approach that permits the encoded bit rate to vary subject to a peak bit rate and average bit rate constraints for higher quality streams, while a bottom bit rate stream is encoded to achieve a constant chunk rate. The video encoding system also dynamically decides an encoding resolution for segments of the multiple bit rate video streams that varies with video complexity so as to achieve a better visual experience for multiple bit rate streaming.

Abstract translation: 视频编码系统使用允许编码比特率根据高质量流的峰比特率和平均比特率约束而变化的方法对多个比特率视频流的视频流进行编码，而底部比特率流被编码以实现 恒定的块率。 视频编码系统还动态地决定了随着视频复杂度而变化的多个比特率视频流的段的编码分辨率，从而为多个比特率流实现更好的视觉体验。

公开(公告)号：US20190132595A1

公开(公告)日：2019-05-02

申请号：US16152899

申请日：2018-10-05

Applicant: Chun-Wei Chan

Inventor： Chun-Wei Chan

IPC: H04N19/154 ,  H04N19/124 ,  H04N19/184 ,  H04N19/80

Abstract: An image and video compression method includes defining one or more encoding quality patterns, the one or more encoding quality patterns each have pre-determined areas of quality adjustment, the pre-determined areas of quality adjustment including one or more pre-defined regions of lower quality adjustment and one or more pre-defined regions of higher quality adjustment; receiving a frame associated with content to be encoded; selecting one of the one or more encoding quality patterns; processing the frame via an encoder, the processing using the selected one of the one or more encoded quality patterns; and producing a final output of an encoded bit.