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    • 4. 发明申请
    • VIDEO PROCESSING CIUCUIT AND RELATED METHOD FOR MERGING VIDEO OUTPUT STREAMS WITH GRAPHICAL STREAM FOR TRANSMISSION
    • 视频处理设备及相关方法,用于与传输图形流相结合的视频输出流
    • US20100128802A1
    • 2010-05-27
    • US12276422
    • 2008-11-24
    • Yang-Hung ShihHung-Der LinTang-Hung PoSau-Kwo Chiu
    • Yang-Hung ShihHung-Der LinTang-Hung PoSau-Kwo Chiu
    • H04N11/02
    • H04N5/265H04N5/44508H04N7/0806H04N21/431H04N21/44016
    • A video processing circuit includes a video generating unit for generating a video output stream, a graphic generating unit for providing a graphical stream, and a communication interface circuit coupled to the video generating unit and the graphic generating unit. The communication interface circuit has a first mode provided for mixing the video output stream and the graphical stream to transmit a mixed video output stream through a channel and a second mode provided for merging the video output stream and the graphical stream to transmit a first merged signal through the channel. In the second mode, the communication interface circuit merges the video output stream and the graphical stream by increasing a working frequency of the communication interface circuit to increase bandwidths of the channel, using positions for transmitting a portion of video control signals in the video output stream to transmit the graphical stream, and compressing the video output stream.
    • 视频处理电路包括用于产生视频输出流的视频产生单元,用于提供图形流的图形生成单元以及耦合到视频产生单元和图形生成单元的通信接口电路。 通信接口电路具有第一模式,用于混合视频输出流和图形流以通过通道传输混合视频输出流,以及第二模式,用于合并视频输出流和图形流以传输第一合并信号 通过渠道。 在第二模式中,通信接口电路通过增加通信接口电路的工作频率来合并视频输出流和图形流,以增加通道的带宽,使用用于在视频输出流中发送视频控制信号的一部分的位置 传输图形流,并压缩视频输出流。