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    • 11. 发明申请
    • Video codec system with real-time complexity adaptation and region-of-interest coding
    • 具有实时复杂度适应和感兴趣区域编码的视频编解码系统
    • US20050024487A1
    • 2005-02-03
    • US10783696
    • 2004-02-20
    • William Chen
    • William Chen
    • H04N7/32H04N7/26H04N7/30H04N7/50H04N7/14H04N11/04
    • H04N19/57H04N19/103H04N19/107H04N19/122H04N19/132H04N19/137H04N19/156H04N19/17H04N19/172H04N19/186H04N19/523H04N19/61
    • In a video conference system in which multiple video codecs are simultaneously operating to transmit video, audio and other data between participants in real-time, sharing the system's available resources, this invention provides a way for each codec to adapt to changing network load conditions caused by, for example, participants (and hence codecs) joining/leaving the conference (system). To support video in this type of dynamic environment, the codec is designed for complexity and distortion control and is able to make intelligent tradeoffs between complexity, rate, and distortion. For complexity control, the codec monitors the available computational resources of the system during run-time and adapts its encoding/decoding algorithms to best match the complexity measurements. For distortion control, the codec overcomes the limitations of poor quality video at low bit-rates and allows the user to improve the quality of the video in select regions-of-interest.
    • 在其中多个视频编解码器同时操作以在参与者之间实时传输视频,音频和其他数据的视频会议系统中,共享系统的可用资源,本发明为每个编解码器提供了适应导致的变化的网络负载条件的方式 例如参加者(因此编解码器)加入/离开会议(系统)。 为了支持这种动态环境中的视频,编解码器被设计用于复杂度和失真控制,并且能够在复杂性,速率和失真之间进行智能权衡。 对于复杂度控制,编解码器在运行期间监视系统的可用计算资源,并适应其编码/解码算法以最佳地匹配复杂度测量。 对于失真控制,编解码器以低比特率克服了质量差的视频的限制,并且允许用户在某些感兴趣的区域中提高视频的质量。
    • 15. 发明授权
    • In-circuit programming architecture with processor and delegable flash controller
    • 具有处理器和可委用闪存控制器的在线编程架构
    • US08090916B2
    • 2012-01-03
    • US10881057
    • 2004-06-29
    • William ChenJeon-Yung Ray
    • William ChenJeon-Yung Ray
    • G06F12/00G06F13/00G06F13/28
    • G11C16/102G06F8/654
    • An architecture for an integrated circuit with in-circuit programming allows real-time modification of the in-circuit programming code and other code stored on the chip. The architecture utilizes a microprocessor and control logic on an integrated circuit having a single non-volatile memory that stores instructions and data, such as in-circuit programming and user code, and input/output ports and related structure for exchanging data with an external device. Using in-circuit programming code stored on the chip, the chip interactively establishes an in-circuit programming exchange with an external device to update data and instructions including the in-circuit programming code. Input/output conflicts during in-circuit programming can be avoided by employing a memory controller to handle at least part of the in-circuit programming operations. The memory controller allows the in-circuit programming code to be updated in real time.
    • 具有在线编程的集成电路架构允许实时修改存储在芯片上的在线编程代码和其他代码。 该架构在具有存储指令和数据的单个非易失性存储器的集成电路中使用微处理器和控制逻辑,诸如在线编程和用户代码以及用于与外部设备交换数据的输入/输出端口和相关结构 。 使用存储在芯片上的在线编程代码,芯片与外部设备交互地建立在线编程交换,以更新包括在线编程代码的数据和指令。 可以通过使用存储器控制器来处理至少部分在线编程操作来避免在线编程期间的输入/输出冲突。 存储器控制器允许在线编程代码被实时更新。
    • 16. 发明申请
    • Computing collocated macroblock information for direct mode macroblocks
    • 计算直接模式宏块的并置宏块信息
    • US20090003446A1
    • 2009-01-01
    • US11824550
    • 2007-06-30
    • Yongjun WuWilliam ChenWeidong Zhao
    • Yongjun WuWilliam ChenWeidong Zhao
    • H04B1/66
    • H04N19/86H04N19/117H04N19/132H04N19/154H04N19/172H04N19/176H04N19/436H04N19/44H04N19/587H04N19/61H04N19/89H04N19/91
    • Video decoding innovations for multithreading implementations and graphics processor unit (“GPU”) implementations are described. For example, for multithreaded decoding, a decoder uses innovations in the areas of layered data structures, picture extent discovery, a picture command queue, and/or task scheduling for multithreading. Or, for a GPU implementation, a decoder uses innovations in the areas of inverse transforms, inverse quantization, fractional interpolation, intra prediction using waves, loop filtering using waves, memory usage and/or performance-adaptive loop filtering. Innovations are also described in the areas of error handling and recovery, determination of neighbor availability for operations such as context modeling and intra prediction, CABAC decoding, computation of collocated information for direct mode macroblocks in B slices, reduction of memory consumption, implementation of trick play modes, and picture dropping for quality adjustment.
    • 描述了用于多线程实现和图形处理器单元(“GPU”)实现的视频解码创新。 例如,对于多线程解码,解码器在分层数据结构,图像范围发现,图像命令队列和/或多线程的任务调度的领域中使用创新。 或者,对于GPU实现,解码器在逆变换,逆量化,分数插值,使用波的帧内预测,​​使用波的循环滤波,存储器使用和/或性能自适应环路滤波的领域中使用创新。 创新还在错误处理和恢复领域进行了描述,确定了上下文建模和帧内预测等操作的邻居可用性,CABAC解码,B片中直接模式宏块的并置信息的计算,内存消耗的减少,特技的实现 播放模式和图​​片下降以进行质量调整。
    • 19. 发明申请
    • Interactive photo system
    • 互动照片系统
    • US20070047842A1
    • 2007-03-01
    • US11214255
    • 2005-08-29
    • Vasudev BhaskaranWilliam Chen
    • Vasudev BhaskaranWilliam Chen
    • G06K9/54
    • G06F17/30247G06T5/50Y10S707/99945Y10S707/99948
    • An interactive photo system that provides an interesting and entertaining way to link photos from the digital and analog domains. The system enables easy conversion of a paper-based photo into digital form. The conversion process generally involves a user holding up a paper-based photo image in front of a camera of the system, such that the captured image is rendered in a specific location on a display screen. The system adjusts the captured image for orientation and illumination irregularities in creating a digital version of the paper-based photo. The system further includes a database of digital images and a content retrieval engine to which content from the just-converted digital image can be used as a search query to search the database for other similar digital photos.
    • 交互式照片系统,提供有趣和有趣的方式来链接数字和模拟域的照片。 该系统可轻松将基于纸张的照片转换为数字形式。 转换过程通常涉及用户在系统的相机前面保持基于纸张的照片图像,使得捕获的图像被呈现在显示屏幕上的特定位置。 在创建基于纸张的照片的数字版本时,系统会调整捕获的图像以获取方向和照明不规则。 该系统还包括数字图像的数据库和内容检索引擎,来自刚刚转换的数字图像的内容可以用作搜索查询以在数据库中搜索其他类似的数字照片。