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    • 2. 发明授权
    • Blending of video images in a home communications terminal
    • 在家庭通信终端中混合视频图像
    • US6023302A
    • 2000-02-08
    • US612162
    • 1996-03-07
    • Alexander G. MacInnisJiann-Tsuen Chen
    • Alexander G. MacInnisJiann-Tsuen Chen
    • H04N9/75H04N9/74
    • H04N9/75
    • A graphics blending feature for a terminal such as a home communication terminal (HCT) allows an overlay image to be selectively blended with a background image through the use of a chroma key function and one or more alpha control bits. The chroma key function is used to determine whether the overlay will be completely transparent or not, and the one or more alpha control bits are used to look up a larger alpha value used to blend the overlay and background images. By using a small number of alpha control bits to retrieve a larger alpha value for blending, memory requirements per pixel are reduced. The chroma key function may be implemented by comparing each overlay pixel value to a chroma value and, responsive to a match, making the overlay pixel transparent (i.e., no blending occurs). A dithering function is included in various embodiments to smooth out the resulting image.
    • 用于诸如家庭通信终端(HCT)的终端的图形混合特征允许通过使用色度键功能和一个或多个阿尔法控制位来将叠加图像与背景图像选择性地混合。 色度键功能用于确定叠加层是否完全透明,并且一个或多个Alpha控制位用于查找用于混合叠加和背景图像的较大α值。 通过使用少量的Alpha控制位来获取较大的Alpha值进行混合,每像素的内存要求降低。 可以通过将每个覆盖像素值与色度值进行比较并且响应于匹配使得覆盖像素透明(即,不发生混合)来实现色度键功能。 在各种实施例中包括抖动功能以平滑所得到的图像。
    • 8. 发明授权
    • Integrated circuit with conversion capability for portable media player
    • 具有便携式媒体播放器转换功能的集成电路
    • US08194732B2
    • 2012-06-05
    • US12180316
    • 2008-07-25
    • Alexander G. MacInnis
    • Alexander G. MacInnis
    • H04N11/02
    • H04N21/4126H04N21/43615H04N21/4402H04N21/4621
    • Presented herein are system(s), method(s) and apparatus for an integrated circuit with conversion capabilities for transferring data to a portable media player. In one embodiment, there is presented an integrated circuit for providing video data. The integrated circuit comprises at least one input, at least one output, an encoder, and at least another output. At least one input receives video data. At least one output provides the video data to a display screen. The encoder encodes the video data into a particular compressed format. The at least another output for provides the video data in the particular compressed format to an interface.
    • 这里提出了具有用于将数据传送到便携式媒体播放器的转换能力的集成电路的系统,方法和装置。 在一个实施例中,提出了一种用于提供视频数据的集成电路。 集成电路包括至少一个输入,至少一个输出,编码器和至少另一个输出。 至少一个输入接收视频数据。 至少一个输出将视频数据提供给显示屏幕。 编码器将视频数据编码成特定的压缩格式。 所述至少另一个输出用于将特定压缩格式的视频数据提供给接口。