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Method and system for including non-graphic data in an analog video output signal of a set-top box
Method and system for including non-graphic data in an analog video output signal of a set-top box
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机译:用于将非图形数据包括在机顶盒的模拟视频输出信号中的方法和系统
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摘要
A method and system for including non-graphic data in an analog video output signal of a set-top box. Graphics data is generated from and represents non-graphic data using software or firmware that is executed by a processor, system-on-a-chip integrated circuit, or some other component of the set-top box. The graphics data is alpha blended with video data that is extracted from a digital television signal. This alpha blending results in an alpha blended digital video signal. The alpha blended digital video signal is converted into the analog video output signal by a digital encoder function, which is preferably included in the system-on-a-chip integrated circuit. The alpha blending is also preferably performed by the alpha blending function of the system-on-a-chip integrated circuit. The analog video output signal can then be input into an analog video recorder.
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