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    • 93. 发明授权
    • Secure entry of a user-identifier in a publicly positioned device
    • 在公开定位的设备中安全地输入用户标识符
    • US07434060B2
    • 2008-10-07
    • US11256491
    • 2005-10-22
    • James M. DunnEdith H. SternBarry E. Willner
    • James M. DunnEdith H. SternBarry E. Willner
    • H04L9/00G09G5/00
    • H04M3/382H04M3/493H04N13/341H04N2013/403
    • A method for secure entry of a user-identifier in a publicly positioned device can include establishing a private communications link between a user and the publicly positioned device; dividing the user-identifier into at least two portions; separately prompting the user for each portion of the user-identifier; prompting the user for a combination of random data and the user-identifier; and, discarding the random data from the combination. In the preferred embodiments, the publicly positioned device can have a visual interface through which the user can be visually prompted for the random data and the user-identifier. Alternatively, the publicly positioned device can have a telephone interface through which the user can be audibly prompted for the random data and the user-identifier. In the case of a visual display, the private communications link can be established by linking the publicly positioned device to active glasses having a shuttered display. The opening and closing of the shuttered display can be synchronized with the display of the prompts in the visual interface such that only the wearer of the active glasses can view the prompts. In the case of a telephone interface, an telephone operator system, for example an Interactive Voice Response system or a human operator, can provide the prompts audibly through the telephone interface.
    • 用户标识符在公开定位的设备中的安全输入的方法可以包括在用户与公开定位的设备之间建立专用通信链路; 将用户标识符分成至少两部分; 单独地向用户提示用户标识符的每个部分; 提示用户组合随机数据和用户标识符; 并且从组合中丢弃随机数据。 在优选实施例中,公开定位的设备可以具有可视界面,用户可以通过该界面可视地提示随机数据和用户标识符。 或者,公开定位的设备可以具有电话接口,通过该电话接口可以听到用户提示随机数据和用户标识符。 在视觉显示的情况下,可以通过将公开定位的设备连接到具有快门显示器的主动眼镜来建立专用通信链路。 快门式显示器的打开和关闭可以与可视界面中的提示的显示同步,使得仅活动眼镜的佩戴者可以观看提示。 在电话接口的情况下,电话操作系统,例如交互式语音应答系统或人类操作员,可以通过电话接口可听见地提供提示。
    • 97. 发明授权
    • Laser system and method of operation having improved signal continuity and safety
    • 激光系统和操作方法具有改善的信号连续性和安全性
    • US06771678B1
    • 2004-08-03
    • US09593076
    • 2000-06-13
    • Barry E. WillnerJames M. Dunn
    • Barry E. WillnerJames M. Dunn
    • H01S300
    • H04B10/07
    • An improved laser system and method of operation provides signal continuity and safety in the event of accidental interruption of the laser beam. At the transmitting end, a main laser generates a beam, which is surrounded by a low powered guard beam generated by a pulsed laser. At the receiver, a leas system includes a main lens for receiving the main laser beam and a surrounding annular segmented set of lenses acting as a set of parallel receivers for the surrounding guard beam. A trigger circuit is connected to the parallel receivers. In operation, the guard beam insulates the main laser beam and detects interruptions. When the guard beam is interrupted at any point along the length of the beam, one or more of the parallel receivers will be blocked, and a signal will be generated by the trigger circuit to activate a return laser to alter the performance of the main laser, including shutdown of the beam. Upon shutdown, the current stream of bits or packets to the main laser is buffered. Once the guard band interruption is cleared, the trigger signal ends to terminate the return laser. With the termination of the return laser, the buffer circuit is discharged to the main laser, which returns to the normal state whereby signal continuity and safety of operation are achieved.
    • 改进的激光系统和操作方法在激光束意外中断的情况下提供信号连续性和安全性。 在发射端,主激光器产生由被脉冲激光产生的低功率保护光束包围的光束。 在接收器处,雷达系统包括用于接收主激光束的主透镜和用作周围保护光束的一组平行接收器的周围环形分段透镜组。 触发电路连接到并行接收器。 在操作中,保护光束绝缘主激光束并检测中断。 当保护光束在沿光束长度的任何点处中断时,一个或多个并联接收器将被阻塞,并且由触发电路产生信号以激活返回激光器以改变主激光器的性能 ,包括关闭光束。 关闭时,缓冲当前主流激光的位或数据包。 一旦保护带中断被清除,触发信号就结束,终止返回激光。 随着返回激光器的终止,缓冲电路被放电到主激光器,其恢复到正常状态,从而实现信号的连续性和操作的安全性。
    • 100. 发明授权
    • System and method of operation for providing user's security on-demand over insecure networks
    • 用于在不安全网络上按需提供用户安全性的系统和操作方法
    • US06169805A
    • 2001-01-02
    • US08808895
    • 1997-02-28
    • James M. DunnAlan G. GanekEdith H. SternBarry E. Willner
    • James M. DunnAlan G. GanekEdith H. SternBarry E. Willner
    • H04L900
    • H04L9/0827
    • Secure communication may be conducted between two or more parties over a network, e.g the Internet without prior security arrangements among the parties or agreed to encryption/decryption software. A sending party is connected to a data network through a computer and has access to a communications network, e.g. a public switched telephone network. The sender prepares a file designated, e.g. “X” containing confidential information for secure transmission over the Internet or the like to one or more receivers. In one embodiment, the sender downloads encryption/decryption or “crypto” software stored at a location on the Internet e.g. location “U” in a Uniform Resource Locator (URL). The “crypto” software is written in executable code or an interpretive language such as JAVA. The sender selects a key “K” and encrypts the plain text file “X” into cipher text. At some point the communication network is accessed and the receiver(s) is notified of the URL U where the “crypto” software is located and the key “K” for decrypting the file “X”. Afterwards, the receiver(s) accesses the URL U using his computer and a web browser. The crypto software is pointed to in Hyper Text Mark Up Language (HTML) and displayed on the receiver screen(s). The HTML page requests the “Key” which the receiver enters. The file “X” is downloaded and decrypted using the key “K” and displayed at the receiver screen(s).
    • 可以通过网络(例如互联网)在两个或更多方之间进行安全通信,而无需双方之间的事先安全安排或者同意加密/解密软件。 发送方通过计算机连接到数据网络,并且可以访问通信网络,例如, 公共交换电话网络。 发件人准备一个指定的文件,例如 “X”包含用于通过互联网等安全传输到一个或多个接收器的机密信息。 在一个实施例中,发送者下载存储在因特网上的位置的加密/解密或“加密”软件,例如 位置“U”在统一资源定位符(URL)中。 “crypto”软件用可执行代码或解释语言(如JAVA)编写。 发送方选择密钥“K”,并将明文文件“X”加密为密文。 在某一时刻,通信网络被访问,接收者被通知“密码”软件所位于的URL U和用于解密文件“X”的密钥“K”。 之后,接收者使用他的计算机和网络浏览器访问URL U。 加密软件指向超文本标记语言(HTML),并显示在接收器屏幕上。 HTML页面请求接收者输入的“密钥”。 使用键“K”下载并解密文件“X”,并在接收器屏幕上显示。