Digital signal recording/reproducing apparatus
    1.
    发明授权
    Digital signal recording/reproducing apparatus 失效
    数字信号记录/再现装置

    公开(公告)号:US07689100B2

    公开(公告)日:2010-03-30

    申请号:US10928242

    申请日:2004-08-30

    IPC分类号: H04N5/91 H04N7/26

    摘要: 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.

    摘要翻译: 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。

    Digital signal recording/reproducing apparatus
    2.
    发明申请
    Digital signal recording/reproducing apparatus 失效
    数字信号记录/再现装置

    公开(公告)号:US20050025458A1

    公开(公告)日:2005-02-03

    申请号:US10928242

    申请日:2004-08-30

    摘要: 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.

    摘要翻译: 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。

    Digital signal recording/reproducing apparatus
    3.
    发明授权
    Digital signal recording/reproducing apparatus 失效
    数字信号记录/再现装置

    公开(公告)号:US06804453B1

    公开(公告)日:2004-10-12

    申请号:US09571656

    申请日:2000-05-15

    IPC分类号: H04N591

    摘要: 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.

    摘要翻译: 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。

    Digital signal processing apparatus
    5.
    发明授权
    Digital signal processing apparatus 有权
    数字信号处理装置

    公开(公告)号:US07472415B2

    公开(公告)日:2008-12-30

    申请号:US10976924

    申请日:2004-11-01

    摘要: If content is transmitted/received through a digital signal bus, protection of copyright causes a problem because of no deterioration in quality. Accordingly, authentication is required. The quantity of information to be processed is, however, so large that a long time is required for authentication. Accordingly, both achievement of handling property as in conventional analog connection and protection of copyrighted content without user's awareness become an object. The foregoing object can be achieved by authentication which is executed, for management of copyright, among apparatuses connected to the digital signal bus when the apparatuses are powered on or connected to the digital signal bus or when an input terminal connected to the digital signal bus is selected. The object can be further achieved by an encryption key shared among these apparatuses.

    摘要翻译: 如果通过数字信号总线发送/接收内容,则由于质量的劣化,版权保护造成问题。 因此,需要认证。 然而,要处理的信息量如此之大以至于需要长时间的认证。 因此,在传统模拟连接中实现处理属性和保护没有用户意识的版权内容成为目的。 上述目的可以通过在设备上电或连接到数字信号总线时连接到数字信号总线的设备之间执行的用于管理版权的认证来实现,或者当连接到数字信号总线的输入端子是 选择。 可以通过这些装置之间共享的加密密钥来进一步实现该目的。

    Information receiving and recording/reproducing apparatus/method having
function for limiting/delimiting for protecting copyright of recording
information
    6.
    发明授权
    Information receiving and recording/reproducing apparatus/method having function for limiting/delimiting for protecting copyright of recording information 失效
    具有用于限制/限定用于保护记录信息的版权的功能的信息接收和记录/再现装置/方法

    公开(公告)号:US5912969A

    公开(公告)日:1999-06-15

    申请号:US993190

    申请日:1997-12-18

    摘要: An apparatus comprising a transmission system for transmitting an information signal, and a reception system including an information receiving unit for receiving the information signal, and an information recording/reproducing unit for recording/reproducing the received information signal on/from a recording medium. The reception system includes a specific information storage circuit for storing specific information which is assigned peculiarly to the reception system in advance, a specific information donating circuit for adding the specific information to the received information signal or encrypting the received information signal on the basis of the specific information to supply the resulting information signal to the information recording/reproducing unit, and a specific information judgement circuit for receiving an information signal reproduced by the information recording/reproducing unit and verifying the information signal with a condition based on the specific information stored in the specific information storage circuit so that when the condition is satisfied, a signal obtained by deleting the specific information added to the reproduced information signal or by decrypting the encrypted information signal is outputted.

    摘要翻译: 一种包括用于发送信息信号的传输系统和包括用于接收信息信号的信息接收单元的接收系统的装置,以及用于在/从记录介质上记录/再现接收到的信息信号的信息记录/再现单元。 接收系统包括:特定信息存储电路,用于存储预先向接收系统特别分配的特定信息;特定信息提供电路,用于将特定信息添加到接收到的信息信号或基于接收信息信号加密接收到的信息信号 特定信息以将所得到的信息信号提供给信息记录/再现单元,以及特定信息判断电路,用于接收由信息记录/再现单元再现的信息信号,并且基于存储在存储器中的特定信息的条件来验证信息信号 特定信息存储电路,使得当满足条件时,输出通过删除添加到再现信息信号的特定信息或通过解密加密信息信号而获得的信号。

    Digital information recording and reproducing method and apparatus therefor
    7.
    发明授权
    Digital information recording and reproducing method and apparatus therefor 失效
    数字信息记录和再现方法及装置

    公开(公告)号:US07757300B2

    公开(公告)日:2010-07-13

    申请号:US11227860

    申请日:2005-09-14

    IPC分类号: G06F7/04 G06F17/30 H04N7/16

    CPC分类号: G11B20/00086 G11B19/122

    摘要: A method is disclosed wherein a first piece of digital information and copy control information of the first piece of digital information is received. The copy control information is for controlling the recording of the first piece of digital information on a recording medium. When the received copy control information is Copy One Generation indicating that only one generation copy of digital information is allowed, then 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.

    摘要翻译: 公开了一种接收第一数字信息的第一段数字信息和复制控制信息的方法。 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。 当所接收到的复制控制信息是指一次代表仅允许一个数字信息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,而第二个 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。

    Content transmitting device, content receiving device and content transmitting method
    9.
    发明授权
    Content transmitting device, content receiving device and content transmitting method 有权
    内容发送装置,内容接收装置和内容发送方法

    公开(公告)号:US08225084B2

    公开(公告)日:2012-07-17

    申请号:US12652319

    申请日:2010-01-05

    IPC分类号: H04L29/06

    CPC分类号: H04L63/061 H04L63/0869

    摘要: Before content transmission, the content transmitting device and the content receiving device mutually authenticate each other to verify that the other device respects copyright and rightfully handles content, and then content is encrypted by shared key data and transmitted. It is arranged that in an authentication process, a time from transmission of an authentication request or a time from transmission of an authentication response until arrival of receipt acknowledgement data is measured and only when a measured time is less than a fixed upper-limit value, content is transmitted.

    摘要翻译: 在内容发送之前,内容发送装置和内容接收装置相互认证,以验证其他装置是否尊重版权并正确地处理内容,然后通过共享密钥数据加密内容并发送。 设置在认证处理中,测量从发送认证请求的时间或从发送认证响应直到到达接收确认数据的时间,并且仅当测量时间小于固定的上限值时, 内容被传送。

    Digital signal processing apparatus
    10.
    发明授权
    Digital signal processing apparatus 有权
    数字信号处理装置

    公开(公告)号:US08042175B2

    公开(公告)日:2011-10-18

    申请号:US12247657

    申请日:2008-10-08

    摘要: If content is transmitted/received through a digital signal bus, protection of copyright causes a problem because of no deterioration in quality. Accordingly, authentication is required. The quantity of information to be processed is, however, so large that a long time is required for authentication. Accordingly, both achievement of handling property as in conventional analog connection and protection of copyrighted content without user's awareness become an object. The foregoing object can be achieved by authentication which is executed, for management of copyright, among apparatuses connected to the digital signal bus when the apparatuses are powered on or connected to the digital signal bus or when an input terminal connected to the digital signal bus is selected. The object can be further achieved by an encryption key shared among these apparatuses.

    摘要翻译: 如果通过数字信号总线发送/接收内容,则由于质量的劣化,版权保护造成问题。 因此,需要认证。 然而,要处理的信息量如此之大以至于需要长时间的认证。 因此,在传统模拟连接中实现处理属性和保护没有用户意识的版权内容成为目的。 上述目的可以通过在设备上电或连接到数字信号总线时连接到数字信号总线的设备之间执行的用于管理版权的认证来实现,或者当连接到数字信号总线的输入端子是 选择。 可以通过这些装置之间共享的加密密钥来进一步实现该目的。