A conversion device for performing a raster scan conversion between a JPEG decoder and an image memory
    1.
    发明公开
    A conversion device for performing a raster scan conversion between a JPEG decoder and an image memory 审中-公开
    对于JPEG解码器和图像存储器之间执行Rasterabtastkonvertierung A转换装置

    公开(公告)号:EP1608178A1

    公开(公告)日:2005-12-21

    申请号:EP04291550.4

    申请日:2004-06-18

    CPC classification number: H04N19/60 H04N19/85 H04N2201/33378

    Abstract: The conversion device comprises an input for receiving data corresponding to an image to be displayed, said received data being in a JPEG decoder output data format and processing means for reconstructing and writing the image to be displayed into said image memory, in a display module expected input data format. The bandwidth of the image memory (MM) is greater than one byte. Said processing means are fully hardwired and comprises a first logic stage (LST1) for writing said received data byte by byte into an intermediate memory (ITM) at chosen addresses such that said written data form a sequence of data in said display module expected input data format, and a second logic stage (LST2) for reading said written data in said intermediate memory, forming successive packets of read data having a size corresponding to said bandwidth, and successively writing said packets into said image memory (MM) at chosen addresses such that said written packets form together all the lines of said image.

    Abstract translation: 变换装置,用于接收数据对应于输入的图像包括要被显示的,所述所接收的在一个JPEG解码器输出数据格式的数据是与用于重建和写入图像处理装置要被显示到所述图像存储器,预期的显示模块中 输入数据格式。 图像存储器(MM)的带宽是大于一个字节。 所述处理装置是完全硬连线和包括第一逻辑级(LST-1)用于写入所述检查,所述写入的数据形成数据在所述显示模块预期的输入数据的顺序选择的地址接收到由字节数据字节到在中间存储器(ITM) 格式,以及用于读出所述写入数据在所述中间存储器,形成具有大小对应于所述的带宽,并且连续地在所选择的地址搜索写入所述数据包到所述图像存储器(MM)的读取数据的连续分组的第二逻辑级(LST2) 在于所述书面形式的数据包一起,所述图像的所有行。

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