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    • 2. 发明申请
    • Digital information recording and reproducing method and apparatus therefor
    • 数字信息记录和再现方法及装置
    • US20060077825A1
    • 2006-04-13
    • US11227860
    • 2005-09-14
    • Tomoyuki NonakaManabu SasamotoHiroo Okamoto
    • Tomoyuki NonakaManabu SasamotoHiroo Okamoto
    • G11B5/09
    • G11B20/00086G11B19/122
    • To solve the problem inhibiting the copyright protection caused by reason that there are no means for restricting the number of backups to other media, which makes it impossible for a copyright owner to specify the allowable number of backups for the content of “Copy One Generation”, disclosed herein is a digital information recording and reproducing method. The method is so configured that: a first piece of digital information and copy control information of the first piece of digital information is received, wherein the copy control information is for controlling the recording of the first piece of digital information on a recording medium; and when the received copy control information is Copy One Generation indicating that only one generation copy of digital information is allowed, a plurality of the first pieces of digital information are recorded on a first recording medium as the first piece of digital information and a second piece of digital information, wherein the first piece of digital information is different in format or in bit rate from the second piece of digital information.
    • 为了解决由于没有办法将备份数量限制到其他媒体而导致的版权保护问题,这使得版权所有者不可能为“一代复制”的内容指定允许的备份数量, 这里公开的是数字信息记录和再现方法。 该方法被配置为:接收第一数字信息的第一数字信息和复制控制信息,其中复制控制信息用于控制在记录介质上记录第一片数字信息; 并且当接收到的复制控制信息是指示仅允许数字信息的仅一代拷贝的一代的复制控制信息时,多个第一数字信息作为第一数字信息被记录在第一记录介质上,而第二片 数字信息,其中第一片数字信息的格式或与第二数字信息的位速率不同。
    • 5. 发明授权
    • Digital signal recording/reproducing apparatus
    • 数字信号记录/再现装置
    • US07689100B2
    • 2010-03-30
    • US10928242
    • 2004-08-30
    • Manabu SasamotoHiroo OkamotoToshifumi TakeuchiMasaru Takahashi
    • Manabu SasamotoHiroo OkamotoToshifumi TakeuchiMasaru Takahashi
    • H04N5/91H04N7/26
    • H04N5/913H04L9/0869H04L2209/605H04N9/7921H04N9/8042H04N2005/91364
    • A digital signal recording apparatus is disclosed, which is capable of protecting the copyright of the analog input information encoded into a first digital signal in a recording medium. A second digital signal encrypted based on the key information and the input analog signal encrypted based on the key information are converted into a second digital signal and encrypted, and the resulting signal is selectively recorded in a recording medium. The digital signal recording apparatus further comprises a circuit for encrypting the digital signal converted from the input analog signal with a key obtained by a predetermined calculation of the key information according to a scheme similar to the second digital signal protection scheme through a digital interface, and a signal recording circuit for recording the key information and the encrypted digital signal in a recording medium.
    • 公开了一种数字信号记录装置,其能够保护编码到记录介质中的第一数字信号中的模拟输入信息的版权。 基于密钥信息加密的第二数字信号和基于密钥信息加密的输入模拟信号被转换成第二数字信号并被加密,并将所得到的信号选择性地记录在记录介质中。 数字信号记录装置还包括一个电路,用于通过数字接口根据类似于第二数字信号保护方案的方案,利用通过密钥信息的预定计算获得的密钥来加密从输入的模拟信号转换的数字信号;以及 用于将密钥信息和加密的数字信号记录在记录介质中的信号记录电路。