会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 71. 发明授权
    • Systems for fingerprinting digital data
    • 数字数据指纹系统
    • US07200244B2
    • 2007-04-03
    • US11021192
    • 2004-12-22
    • Yacov Yacobi
    • Yacov Yacobi
    • G06K9/00
    • G06T1/005G06T2201/0051G06T2201/0061G06T2201/0063H04N1/32101H04N2201/3235H04N2201/3236
    • Systems for fingerprinting digital data are described. In one embodiment, a system is configured to form a Γ code by defining a plurality of fingerprinting words. Each fingerprinting word is unique and contains at least one spread sequence. Each fingerprinting word contains a plurality of Γ-symbols, each Γ-symbol containing 2c−1 spread sequences, where c is the number of colluders that are desired to be defended against. The fingerprinting words are structured to permit a collusion analysis to ascertain identities of potential colluders who change an associated fingerprinting word. The individual fingerprinting words are assigned to individual respective entities who constitute potential colluders and serve to identify an entity to which it is assigned.
    • 描述数字数据指纹系统。 在一个实施例中,系统被配置为通过定义多个指纹词来形成伽马码。 每个指纹字是唯一的,并且包含至少一个扩展序列。 每个指纹字包含多个Gamma符号,每个Gamma符号包含2c-1扩展序列,其中c是希望防御的共谋者的数目。 指纹字被构造成允许串通分析以确定改变相关指纹词的潜在共谋者的身份。 单独的指纹词被分配给构成潜在共谋者的各个实体,并且用于识别被分配给其的实体。
    • 72. 发明授权
    • Methods and apparatus for protecting signals transmitted between a source and destination device over multiple signal lines
    • 用于通过多个信号线保护在源和目的地设备之间传输的信号的方法和装置
    • US06996236B1
    • 2006-02-07
    • US09608209
    • 2000-06-30
    • Paul EnglandAndrew D. RosenYacov YacobiGideon A. Yuval
    • Paul EnglandAndrew D. RosenYacov YacobiGideon A. Yuval
    • H04N7/167H04B1/69
    • H04N9/641H04N5/765H04N5/775H04N5/913H04N7/163H04N7/1675H04N9/8042H04N21/2541H04N21/4122H04N21/4367H04N21/835H04N2005/91328H04N2005/91364
    • Methods and apparatus for protecting copyrighted information, e.g., video signals, from unauthorized use are described. Encrypted video signals are transmitted from a source device, e.g., display adapter, to a display device, e.g., monitor, over analog signal lines after the identity of the destination device is confirmed by receipt of a certificate assigned to the destination device. A session key, used for encrypting the analog signals, is generated and exchanged between the source and destination devices. The source and destination devices each include a pseudo-random number generator driven by the session key. As part of the encryption process a false video signal is generated. The false video signal and R, G, B video signals are transmitted to the display device over four lines. The lines used to transmit the R, G, B and false video signals are periodically swapped as a function of the output of the pseudo random number generator to encrypt, e.g., scramble, the video signals. To avoid having to provide an additional line between the display adapter and the display device beyond those used in conventional displays, horizontal synchronization information is combined with, e.g., modulated on, one or more of the other signals transmitted to the display. The horizontal sync line is then used to convey one of the four video signals. The display device extracts the horizontal timing information from the received video signals and decrypts the signals using the output of its pseudo random number generator to reverse the scrambling process used to encrypt the transmitted video signals.
    • 描述用于保护未经授权的使用的受版权保护的信息(例如,视频信号)的方法和装置。 在通过接收到分配给目的地设备的证书来确认目的地设备的身份之后,加密的视频信号通过模拟信号线从源设备(例如,显示适配器)发送到显示设备,例如监视器。 用于加密模拟信号的会话密钥在源设备和目的设备之间生成和交换。 源和目的地设备每个都包括由会话密钥驱动的伪随机数发生器。 作为加密处理的一部分,生成假视频信号。 伪视频信号和R,G,B视频信号通过四行传输到显示设备。 用于传输R,G,B和假视频信号的线路作为伪随机数发生器的输出的周期性交换,以加密(例如)加扰视频信号。 为了避免在显示适配器和显示设备之间提供除了传统显示器中使用的显示适配器和显示设备之外的附加线路,水平同步信息与例如调制在传输到显示器的其它信号中的一个或多个相结合。 然后,水平同步线用于传送四个视频信号中的一个。 显示装置从接收到的视频信号中提取水平定时信息,并使用其伪随机数发生器的输出对信号进行解密,以反转用于加密所发送的视频信号的加扰处理。
    • 73. 发明申请
    • System for protecting information content
    • 保护信息内容的系统
    • US20050195976A1
    • 2005-09-08
    • US11083882
    • 2005-03-17
    • Yacov YacobiPaul EnglandGideon Yuval
    • Yacov YacobiPaul EnglandGideon Yuval
    • H04N7/169H04N7/01
    • H04N21/4402H04N7/1696H04N21/4122H04N21/43632H04N21/4367H04N21/4405H04N21/4408
    • System for protecting copyrighted information, e.g., video signals, from unauthorized copying. Analog red (R), green (G) and blue (B) video signals are transmitted from a source device, e.g., a display adapter, to a display device, e.g., a monitor, over corresponding analog signal lines after the identify of the destination device is confirmed by receipt of a certificate assigned to the destination device. A session key, used for encrypting the analog signals, is generated and exchanged between the source and destination devices after the identification of the destination device is confirmed. The source and destination devices each includes a pseudo-random number generator driven by the session key. The lines that carry the R, G and B video signals are changed, e.g., swapped, on a periodic basis as a function of the output of the pseudo-random number generator in the source device. The destination device, which has an input to its pseudo-random number generator synchronized with the random number generator of the source device, decrypts the received video signals in a complimentary fashion to the encryption. Encrypted digital information subject to copying constraints may be supplied to a display adapter via an IEEE 1394 compliant bus.
    • 用于保护受版权保护的信息(例如,视频信号)的未经授权的复制的系统。 模拟红色(R),绿色(G)和蓝色(B)视频信号从源设备(例如显示适配器)传输到显示设备,例如监视器,在相应的模拟信号线上, 通过接收分配给目的地设备的证书来确认目的地设备。 在确认目的地设备的识别之后,在源设备和目的设备之间生成用于加密模拟信号的会话密钥。 源和目标设备每个都包括由会话密钥驱动的伪随机数发生器。 作为源设备中的伪随机数发生器的输出的函数,周期性地改变携带R,G和B视频信号的线路,例如交换。 具有与源设备的随机数发生器同步的其伪随机数发生器的输入的目的地设备以接收的视频信号以加密方式互补地解密。 受复制限制的加密数字信息可以通过IEEE 1394兼容总线提供给显示适配器。
    • 75. 发明授权
    • Public key authentication and key agreement for low-cost terminals
    • 低成本终端的公钥认证和密钥协商
    • US5406628A
    • 1995-04-11
    • US101437
    • 1993-08-02
    • Michael J. BellerYacov Yacobi
    • Michael J. BellerYacov Yacobi
    • G09C1/00H04L9/08H04L9/32H04L29/06H04L9/30
    • H04L63/0869G06Q20/3674H04L9/0844H04L9/3249
    • A method for achieving mutual authentication and session key agreement between a first party 12 which has minimal computational resources and a second party 18 which has substantial computational resources utilizes a modular square root operation for certificate authentication and key distribution and an ElGamal, NIST DSS, or other efficient signature operation for obtaining the signature of a message. Theses operations are highly advantageous in a system with asymmetric resources because the computation power required to perform these operations is far less than the computation power required to invert these operations. The entire mutual authentication and session key agreement method can be carried out using only between one and three modular multiplications on the weak computational side.
    • 用于实现具有最少计算资源的第一方12和具有大量计算资源的第二方18之间的相互认证和会话密钥协商的方法利用用于证书认证和密钥分发的模块平方根操作以及ElGamal,NIST DSS或 用于获得消息签名的其他有效的签名操作。 这些操作在具有不对称资源的系统中是非常有利的,因为执行这些操作所需的计算能力远小于反转这些操作所需的计算能力。 整个相互认证和会话密钥协商方法只能在弱计算方面进行一次和三次模乘乘法。
    • 76. 发明授权
    • Secure teleconferencing system
    • 安全电话会议系统
    • US4845749A
    • 1989-07-04
    • US135917
    • 1987-12-21
    • Ernest F. BrickellPil J. LeeYacov Yacobi
    • Ernest F. BrickellPil J. LeeYacov Yacobi
    • H04K1/00
    • H04K1/00
    • A secure audio teleconferencing system is disclosed. The secure teleconferencing system comprises a centralized facility or bridge to which a plurality of participants is connected. The role of the bridge is to receive encrypted message signals from the participants and to add the encrypted message signals, modulo some known number. The result is then transmitted to the participants. Each participant is able to decrypt the modular sum of encrypted message signals, to obtain the desired ordinary sum of clear text message signals. In accordance with the invention, the message signals remain encrypted throughtout processing by the bridge. There are no non-encrypted messages.
    • 公开了一种安全的音频电话会议系统。 安全电话会议系统包括多个参与者连接到的集中设施或桥。 桥的作用是从参与者接收加密的消息信号,并添加加密的消息信号,模数一些已知数字。 然后将结果传输给参与者。 每个参与者能够解密加密消息信号的模数和,以获得期望的明文消息信号的普通和。 根据本发明,消息信号通过桥接器保持加密的遍历处理。 没有未加密的消息。