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    • 2. 发明申请
    • Key-frame processor for computer system
    • 计算机系统的关键帧处理器
    • US20050253838A1
    • 2005-11-17
    • US10847051
    • 2004-05-16
    • Shin-Hung ChangShao-Ting LeeJan-Ming Ho
    • Shin-Hung ChangShao-Ting LeeJan-Ming Ho
    • G06T1/00G09B3/00G09B7/07G09B13/00
    • G09B7/07
    • A key-frame processor for computer system is provided to couple with the streaming server of the computer system to transmit a series of continuous computer image frames to a plurality of user sites. The key-frame processor for computer system comprises a key-frame reconstruction module and a key-frame selective streaming module. The key-frame reconstruction module is coupled with an instructor computer system to obtain image data transmitted by the instructor computer system to the streaming server, which image data represent image being displayed at the instructor computer. The key-frame reconstruction module reconstructs the obtained image data into displaying data representing the whole image as displayed, maintains data of the whole image being currently displayed at the instructor computer from time to time and stores the whole image data at the streaming server regularly. The key-frame selective streaming module is coupled with the streaming server and, under certain conditions, grabs data of the currently displayed whole image as stored by the key-frame reconstruction module as key-frame to be transmitted. The instructor computer system needs not to conduct key-frame processing, such that operation of the instructor computer system is made smooth.
    • 提供了一种用于计算机系统的关键帧处理器以与计算机系统的流服务器耦合,以将一系列连续的计算机图像帧发送到多个用户站点。 计算机系统的关键帧处理器包括一个关键帧重建模块和一个关键帧选择流模块。 关键帧重建模块与指导者计算机系统相结合,以获得由指导者计算机系统发送到流服务器的图像数据,该图像数据表示在教师计算机上显示的图像。 关键帧重建模块将所获得的图像数据重建为显示表示正在显示的整个图像的数据,保持当前在教师计算机上显示的整个图像的数据,并将整个图像数据定期存储在流媒体服务器上。 关键帧选择流模块与流服务器相连,并且在某些条件下,将由关键帧重构模块存储的当前显示的整个图像的数据作为要发送的关键帧进行抓取。 指导者计算机系统不需要进行关键帧处理,使得讲师计算机系统的操作顺利进行。
    • 3. 发明授权
    • Real-time screen recording system
    • 实时屏幕录制系统
    • US06864901B2
    • 2005-03-08
    • US10361500
    • 2003-02-11
    • Shin-Hung ChangShao-Ting LeeJan-Ming Ho
    • Shin-Hung ChangShao-Ting LeeJan-Ming Ho
    • G06F3/14G06F9/44G06K9/62G09G1/14G09G5/00H04N5/228H04N7/14
    • G06F3/1462
    • A real-time screen recording system is disclosed. Under the design of the real-time screen recording system of this invention, the Event Inspector records updated regions of the screen when a windows update event is generated, the Periodical Extractor records the screen updates periodically. This mechanism ensures that all updates will be recorded. The Event Filter inspects the update events to identify events relating to updates of screen to ensure correct recording of the updated regions. The Sporadic Controller adjusts the working frequency of the Periodical Extractor, so that the Periodical Extractor operates in an efficient manner. The Update Region Filter filters out unnecessary updated regions to avoid heavy workload of the computer system. As a result, an efficient and correct screen recording system may be achieved.
    • 公开了一种实时屏幕录制系统。 在本发明的实时屏幕录制系统的设计下,当生成Windows更新事件时,事件检查器记录屏幕的更新区域,周期性提取器周期性地记录屏幕更新。 该机制可确保所有更新都将被记录。 事件过滤器检查更新事件以识别与更新屏幕相关的事件,以确保正确记录更新的区域。 零星控制器调整定期提取器的工作频率,以便定期提取器以有效的方式运行。 更新区域过滤器过滤掉不必要的更新区域,以避免计算机系统的繁重工作量。 结果,可以实现有效且正确的屏幕记录系统。