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    MULTIPLEXING DEVICE AND DEMULTIPLEXING DEVICE
    1.
    发明公开
    MULTIPLEXING DEVICE AND DEMULTIPLEXING DEVICE 有权
    MULTIPLEXEINRICHTUNG UND DEMULTIPLEXEINRICHTUNG

    公开(公告)号：EP1363439A4

    公开(公告)日：2006-08-30

    申请号：EP01954394

    申请日：2001-07-31

    申请人： MITSUBISHI ELECTRIC CORP

    发明人： BABA MASAYUKI ,  KATO YOSHIAKI ,  MATSUDA YUKINARI

    IPC分类号： H04L12/891 ,  H04J3/14 ,  H04J3/24 ,  H04L1/00 ,  H04L7/04 ,  H04L12/951 ,  H04N7/52 ,  H04L29/02 ,  H04J3/00 ,  H04L12/56

    CPC分类号： H04N7/52 ,  H04J3/247 ,  H04L1/00 ,  H04L7/04 ,  H04N21/236 ,  H04N21/434

    摘要： A multiplexing device divides two input data rows (a, b) into packets (3a, 3b) of fixed lengths (La, Lb) respectively and transmits the packets (3a, 3b) to which a flag (1) and headers (2a, 2b) indicating the data types of the packets are added. If a header (2) cannot be normally recognized because of a transmission error or the like, the demultiplexing device performs demultiplexing by assuming the row to be the input data row (a) if the length of the data to the flag (1) to occur next is (La), and by assuming it to be the input data row (b) if (Lb). If the flag (1) cannot be normally recognized because of a transmission error or the like, the demultiplexing device continues the subsequent demultiplexing by assuming that the flag (1) is present after the length La if the header (2) just before indicates the input data row (a), and by assuming that the flag (1) is present after the length (Lb) if the header (2) indicates the input data row (b).

    摘要翻译： 在复用装置中，使用固定长度La和Lb分组两种类型的a和b的输入数据序列，以分别产生分组3a和3b。 指示分组的数据类型的标志1和报头2a和2b附加到分组3a和3b以进行传输。 在解复用装置中，当由于传输错误等导致标题2无法正确识别时，通过估计随后的数据是输入数据序列a来执行后续解复用步骤，当长度La出现在下一个标志1之前时 ，并且当长度Lb发生时，估计随后的数据是输入数据序列b。 当标志1由于传输错误等而不能被正确地识别时，当前一标题2指示输入数据序列a时，通过确定标志1被预期为来自前一报头2的长度为La的标志1 并且当前一标题2指示输入数据序列b时，确定标志1预期来自前一标题2的长度Lb。

    IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD
    2.
    发明公开
    IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD 审中-公开

    公开(公告)号：EP2913795A4

    公开(公告)日：2016-06-29

    申请号：EP13849422

    申请日：2013-10-21

    申请人： MITSUBISHI ELECTRIC CORP

    发明人： TSUDA YUKA ,  YAMAGISHI NOBUHIKO ,  SHIMIZU TOSHIYUKI ,  HATAKENAKA TAKASHI ,  SHINOHARA JUNKO ,  YASUI HIRONOBU ,  FUKUTA TOMONORI ,  OTSUKA ISAO ,  KATO YOSHIAKI

    IPC分类号： H04N1/407 ,  G06T5/00 ,  G06T5/40

    CPC分类号： G06T5/40 ,  G06T5/008 ,  G06T5/009 ,  G06T7/90 ,  G06T2207/10024 ,  H04N1/407

    摘要： To determine an image type to perform proper gray scale correction, there are provided a gray scale histogram calculator (1) that calculates a gray scale histogram of gray scale components for each color component; a maximum/minimum calculator (3) that uses these gray scale histograms to calculate, for each color component, a maximum and a minimum of classes having a frequency greater than zero; an image type determiner (2) that generates, from adjacent classes and frequencies in the gray scale histograms, an absolute difference value histogram for each color component, compares the absolute difference values with a predetermined threshold value to determine, according to the presence or absence of an absolute difference value exceeding the threshold value, a size of an area of image regions where the gray scale components are uniform, and determines an image type; a gray scale correction curve generator that generates a gray scale correction curve for correcting a gray scale of an image signal for each color component so that a largest and a smallest of the maximum and minimum of the classes for each color component are set as a maximum and a minimum of the gray scale correction curve; and a gray scale corrector (5) that uses the gray scale correction curve to perform gray scale correction for each color component.