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    Multifunction memory for digital television
    1.
    发明公开
    Multifunction memory for digital television 失效
    Ferneshen的数字电影。

    公开(公告)号：EP0332266A2

    公开(公告)日：1989-09-13

    申请号：EP89200538.0

    申请日：1989-03-06

    申请人： PHILIPS ELECTRONICS NORTH AMERICA CORPORATION

    发明人： Meyer, Edwin Robert ,  Naimpally, Saiprasad V.

    IPC分类号： H04N5/21 ,  H04N5/44 ,  H04N5/45 ,  H04N9/64

    CPC分类号： H04N5/4448 ,  H04N5/21 ,  H04N5/45 ,  H04N7/012 ,  H04N9/646

    摘要： A digital television processing section capable of picture enhancement, progressive scanning, and multiple picture-in-picture processing is provided. The preferred digital television processing section preferably comprises a picture enhancement processor (PEP), a progressive scan processor, a picture in picture processor, at least one multiplexing means, and a common memory means. The PEP broadly comprises a parameter control means, a memory input select means, and mixer for obtaining current video data, delayed video data from the common memory, and control information from the control means, and for processing the obtained data and information to provide a signal to the progressive scan processor. In various modes of operation, the mixer also provides the signal to the memory input select means which forwards the information to the common memory. The common memory is used as a field delay device and feeds a delayed signal forward to the progressive scan processor. The progressive scan processor then utilizes the current signal and the delayed signal to provide a non-­interlaced display. The delayed signal from the common memory may also be fed back to the mixer of the PEP so that noise reduction and/or cross-color effect reduction may be accomplished or so that stored pictures may be displayed. The picture-in-picture (PIP) processor together with a first multiplexer permits main and secondary (PIP) video data to be supplied as current video data to the PEP. Or if desired, up to nine PIPs may constitute the video field.

    摘要翻译： 提供能够进行图像增强，逐行扫描和多画面处理的数字电视处理部。 优选的数字电视处理部优选地包括图像增强处理器（PEP），逐行扫描处理器，画中画处理器，至少一个复用装置和公共存储器装置。 PEP广泛地包括参数控制装置，存储器输入选择装置和用于获得当前视频数据的混合器，来自公共存储器的延迟视频数据和来自控制装置的控制信息，并且用于处理所获得的数据和信息以提供 信号到逐行扫描处理器。 在各种操作模式下，混频器还向存储器输入选择装置提供信号，该装置将信息转发到公共存储器。 公共存储器用作场延迟装置，并将延迟的信号向前馈送到逐行扫描处理器。 逐行扫描处理器然后利用当前信号和延迟信号来提供非隔行显示。 来自公共存储器的延迟信号也可以被反馈到PEP的混频器，使得可以实现降噪和/或交叉色彩效果的降低，或者可以显示所存储的图像。 画中画（PIP）处理器与第一多路复用器允许将主和副（PIP）视频数据作为当前视频数据提供给PEP。 或者如果需要，最多九个PIP可能构成视频领域。