Method and device for displaying a sequence of images
    71.
    发明公开
    Method and device for displaying a sequence of images 审中-公开
    Verfahren und Vorrichtung zur Anzeige einer Bildsequenz

    公开(公告)号:EP1863279A2

    公开(公告)日:2007-12-05

    申请号:EP07108857.9

    申请日:2007-05-24

    申请人: Thomson Licensing

    IPC分类号: H04N5/913

    摘要: The present invention relates to a method and a device for displaying a sequence of images that makes it possible to prevent any unauthorized copying of the latter. It applies to any type of digital display device comprising a matrix of light cells comprising a number of rows and/or columns of cells greater than the number of rows and/or of columns of pixels of the images to be displayed. According to the invention, to disrupt the illegal copying of sequences of images in cinema auditoria, it is proposed to modify the frame frequency of the displayed images by varying the number of rows and/or columns of cells addressed with a black level for at least two images of the sequence.

    摘要翻译: 本发明涉及一种用于显示图像序列的方法和装置,该方法和装置能够防止后者的任何未经授权的复制。 它适用于任何类型的数字显示设备,其包括包含多个行数和/或列数的单元格的矩阵,该矩阵的单元格数量大于要显示的图像的行数和/或像素列数。 根据本发明,为了破坏电影院中的图像序列的非法复制,提出了通过改变至少用黑电平寻址的单元的行和/或列的数量来修改显示图像的帧频率 序列的两个图像。

    RECORDING METHOD, RECORDING APPARATUS, REPRODUCTION METHOD AND REPRODUCTION APPARATUS
    73.
    发明公开
    RECORDING METHOD, RECORDING APPARATUS, REPRODUCTION METHOD AND REPRODUCTION APPARATUS 审中-公开
    AUFZEICHNUNGSVERFAHREN,AUFZEICHNUNGSGERÄT,WIEDERGABEVERFAHREN UNDWIEDERGABEGERÄT

    公开(公告)号:EP1302946A4

    公开(公告)日:2007-09-19

    申请号:EP02717129

    申请日:2002-04-12

    申请人: SONY CORP

    摘要: Additional information embedded in content data can be corrected with reduced load to hardware. A predetermined amount of content data entered is temporarily stored in buffer means, and from the content data temporarily stored in the buffer means, additional information embedded in the content is detected. When the additional information detected indicates that the content data can be recorded, the content data is recorded on a predetermined medium, and when the additional information indicates that recording of the content data is inhibited, no recording is performed onto the medium. Moreover, when correction of the additional information is required, the correction is made on the data stored in the buffer means.

    摘要翻译: 本发明旨在能够以较少的硬件负担来修改埋在内容数据中的附加信息。 为此,将预定量的输入内容数据临时存储在缓冲装置中,从临时存储在缓冲装置中的内容数据中检测内容数据中的附加信息,检测到的附加信息的内容被估计, 当估计可以记录内容数据时,内容数据被记录在预定介质中,并且当估计内容数据不被记录时,使内容数据不被记录在介质中。 此外,当估计需要修改附加信息时,存储在缓冲器装置中的相关部分的数据被存储在缓冲器装置中被修改。

    Identification data insertion and detection system for digital data
    78.
    发明授权
    Identification data insertion and detection system for digital data 失效
    系统,用于对数字数据的插入和检测识别数据

    公开(公告)号:EP0851679B1

    公开(公告)日:2007-03-07

    申请号:EP97122830.9

    申请日:1997-12-23

    申请人: NEC CORPORATION

    发明人: Wakasu, Yutaka

    IPC分类号: H04N5/913

    摘要: A identification data insertion system for digital data includes a DCT calculator (103) for extracting blocks (102) of 8 x 8 pixels from within a current image (101) and performing DCT (discrete cosine transform) calculation for the blocks (102), a quantizer (104) for quantizing data outputted from the DCT calculator (103), a quantization table (105) for being referred to when the quantizer (104) performs quantization, an electronic watermark data insertion element (107) for inserting electronic watermark data (106) into data after quantization, and an encoder (113) for encoding data outputted from the electronic watermark data insertion element (107) to produce MPEG data (114) in which the electronic watermark data (106) are inserted and outputting the MPEG data (114).

    Anti-copy image display device and method
    80.
    发明公开
    Anti-copy image display device and method 有权
    Antikopierbildanzeigevorrichtung und Verfahren

    公开(公告)号:EP1737224A1

    公开(公告)日:2006-12-27

    申请号:EP06114451.5

    申请日:2006-05-24

    申请人: Thomson Licensing

    IPC分类号: H04N5/913 H04N9/31

    摘要: The present invention relates to a device and a method for displaying images. To combat the copying of images by a camcorder in a cinema auditorium, modulating the luminance of the pixels of a pattern around the value to be displayed to a high frequency which makes the pattern invisible to the human eye but which generates artefacts on the sequence filmed by the camcorder is known. According to the invention, it is proposed to temporally modulate the pattern only in the fixed areas (background or indoor scenes) or, where appropriate, the areas with weak movements. Thus, rather than degrading the image in the areas with movement by applying to them the temporal modulation processing, a decision is taken not to temporally modulate the pattern in these critical areas.

    摘要翻译: 本发明涉及一种用于显示图像的装置和方法。 为了对抗摄像机在影院礼堂中复制图像,将要显示的值周围的图案的像素的亮度调制到高频,使得图案对人眼不可见,但是在拍摄的序列上产生人为因素 由摄像机知道。 根据本发明,提出仅在固定区域(背景或室内场景)中或在适当的情况下对运动较弱的区域进行时间调制模式。 因此,不是通过向他们施加时间调制处理来降低具有移动的区域中的图像,而不是在这些关键区域中对时间调制图案进行决定。