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用于同时记录和显示两个不同的视频节目的方法和装置

申请公布号:CN1245830C

申请号:CN01806729.8

申请日期:2001.03.13

申请公布日期:2006.03.15

申请人:
汤姆森许可公司

发明人:E·S·卡尔斯加尔德;T·E·霍尔兰德

分类号:H04N5/45(2006.01);H04N5/44(2006.01)

主分类号:H04N5/45(2006.01)

代理机构:
中国专利代理(香港)有限公司

代理人:王岳;梁永

地址:法国布洛涅

摘要:本发明公开了一种用于同时记录和显示来自两个不同的视频源的视频信号的方法和装置。所述装置包括主频道处理电路/逻辑148,次频道处理电路/逻辑150和公共电路/逻辑152。所述公共电路包括对第一或第二编码的视频信号译码的数字视频编码器管道112。主频道处理电路利用第一时钟处理第一编码的视频信号,以便形成主图像用于显示。次频道处理电路处理第二编码的视频信号,以便形成和主图像组合显示的PIP图像。利用独立于第一时钟信号的第二时钟信号产生PIP图像。在记录方式中,次频道时钟和次频道处理电路相连,以便使用数字编码器产生可记录的信号。可记录的信号还形成和主频道处理电路相连的PIP图像,从而产生用于监视记录处理的PIP图像。

主权项:1.一种用于观看第一视频信号和要被记录的第二视频信号的方法,包括以下步骤:(a)使用第一时钟参考对第一视频信号译码;(b)使用所述第一时钟信号对第二视频信号译码;(c)使用所述第一时钟信号向显示器提供第一译码的视频信号作为主图像;以及(d)使用第二时钟信号向记录输出端口和显示器提供第二译码的视频信号作为主图像中的PIP。

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