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    • 7. 发明授权
    • Method for insuring uniqueness of an original CD
    • 确保原CD的独特性的方法
    • US06188659B1
    • 2001-02-13
    • US09211763
    • 1998-12-15
    • William J. MuellerRobert V. ReischBane V. Vasic
    • William J. MuellerRobert V. ReischBane V. Vasic
    • G11B700
    • G11B20/00094G11B20/00086
    • The invention provides a method of proving that a CD is an authorized original by utilizing a unique catalog code that is stored in a sub channel data stream on the CD that is derived using digital signature techniques. The inputs for the unique catalog code are derived from a digital signature algorithm and include, in the case of audio CD, each song's ISRC number, a bar code or unique identifier of the CD and the audio data content. To verify that the CD is not a copy, the original digital signature algorithm used at the time of recording to create the unique catalog code is applied to the audio data and ISRC codes recorded on the disc to derive a catalog code. An authorized original CD will have the same catalog code value stored in the subchannel as the catalog code derived from the digital signature algorithm. If the catalog codes do not match, the disc is determined to be an illegal copy.
    • 本发明提供了一种通过利用存储在使用数字签名技术导出的CD上的子信道数据流中的唯一目录代码来证明CD是授权原件的方法。 唯一目录代码的输入是从数字签名算法中得出的,并且在音频CD的情况下,包括每首歌曲的ISRC号码,条形码或CD的唯一标识符和音频数据内容。 为了验证CD不是副本,在记录时使用的原始数字签名算法来创建唯一的目录代码被应用于记录在盘上的音频数据和ISRC代码以得到目录代码。 授权的原始CD将与从数字签名算法派生的目录代码具有存储在子信道中的相同的目录代码值。 如果目录代码不匹配,则光盘被确定为非法副本。
    • 8. 发明授权
    • Matching of digital images to acquisition devices
    • 数字图像与采集设备的匹配
    • US07609846B2
    • 2009-10-27
    • US10890016
    • 2004-07-13
    • Craig M. SmithRobert V. Reisch
    • Craig M. SmithRobert V. Reisch
    • G06K9/00
    • H04N1/32101G06T7/0008H04N2201/3205H04N2201/3235
    • In a digital image matching method, reference calibration data associated with one or more reference digital image files is ascertained. The reference digital image files each have reference calibration data that is hidden metadata and can also have public metadata that is readable by a different procedure. A test digital image file is obtained and a data structure capable of holding the reference calibration data is detected in the test digital image file. The presence of second calibration data within the data structure of the test digital image file is determined. If the reference and second calibration data match, then the test digital image file and reference digital image files are from the same digital acquisition device.
    • 在数字图像匹配方法中,确定与一个或多个参考数字图像文件相关联的参考校准数据。 参考数字图像文件各自具有作为隐藏元数据的参考校准数据,并且还可以具有可由不同过程读取的公共元数据。 获得测试数字图像文件,并且在测试数字图像文件中检测到能够保持参考校准数据的数据结构。 确定测试数字图像文件的数据结构内的第二校准数据的存在。 如果参考和第二校准数据匹配,则测试数字图像文件和参考数字图像文件来自相同的数字采集设备。