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    • 2. 发明授权
    • Record medium with different latencies
    • 记录具有不同延迟的介质
    • US07680023B2
    • 2010-03-16
    • US10473112
    • 2002-12-19
    • Reinhard BlaukovitschAndreas WinterPeter MeerwaldHarald Gabl
    • Reinhard BlaukovitschAndreas WinterPeter MeerwaldHarald Gabl
    • G11B7/24
    • G11B20/00086G11B20/00586G11B20/00601
    • Latency information is used for coding of additional information in a record medium. This additional information which gets embossed in the record medium might be used for verification purposes in that only storage media with the correct latency information are judged to be authentic or might be decoded in a proper way. This technique is applicable to record media, recordable record media, an emulator for recordable or non-recordable record media, a method for producing recordable or non-recordable record media, a method for verifying recordable or non-recordable record media, a record medium writing device for producing recordable or non-recordable record media, and a record medium accessing device for verifying recordable or non-recordable record media.
    • 延迟信息用于对记录介质中的附加信息进行编码。 在记录介质中被压印的附加信息可以用于验证目的,因为只有具有正确等待时间信息的存储介质被判定为可信的或可以以适当的方式解码。 该技术适用于记录介质,可记录记录介质,用于可记录或不可记录记录介质的仿真器,用于产生可记录或不可记录记录介质的方法,用于验证可记录或不可记录记录介质的方法,记录介质 用于产生可记录或不可记录记录介质的写入设备,以及用于验证可记录或不可记录的记录介质的记录介质访问设备。
    • 9. 发明授权
    • Optical disc copy management system
    • 光盘复制管理系统
    • US06535858B1
    • 2003-03-18
    • US09140515
    • 1998-08-26
    • Reinhard BlaukovitschAndreas Winter
    • Reinhard BlaukovitschAndreas Winter
    • G06F1760
    • G11B20/0021G06F2211/007G11B20/00086G11B20/00123G11B20/00391G11B20/0063G11B20/0071
    • The invention relates to a method of obtaining a copy protected optical record carrier carrying information in different blocks, a method of accessing such a copy protected optical record carrier and such an optical record carrier itself. Access devices for optical carriers return different results when retrieving blocks, which contain incorrect address data in the corresponding subcode fields. A copy protection key will be implemented during manufacture of an optical record carrier by modifying the subcode address information of a predetermined pattern of blocks. It is normally not possible to copy incorrect address data onto an optical record carrier, since the address data will be newly generated during the copy process. Therefore, such a key can be utilized to distinguish between an original disc and a copied or non original disc. The key is preset before manufacturing of the optical record carrier itself and can therefore be used to encrypt the data stored on the optical record carrier. Upon accessing of the data, first the key is extracted from the optical record carrier and then the data can be decrypted utilizing this key.
    • 本发明涉及一种获取携带不同块中信息的复制保护光学记录载体的方法,一种访问这种复制保护光学记录载体和这种光学记录载体本身的方法。 检索在相应子代码字段中包含不正确的地址数据的块时,光载波的接入设备会返回不同的结果。 通过修改块的预定模式的子代码地址信息,在光学记录载体的制造过程中将实现复制保护密钥。 通常无法将错误的地址数据复制到光学记录载体上,因为地址数据将在复制过程中重新生成。 因此,这样的密钥可以用于区分原始光盘和复制或非原始光盘。 该密钥在光学记录载体本身制造之前是预设的,因此可用于对存储在光学记录载体上的数据进行加密。 在访问数据时,首先从光学记录载体提取密钥,然后利用该密钥对数据进行解密。