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55 条记录 (耗时 0.035 秒)

    Underwater acoustic carbon nanotube thermophone
    1.
    发明授权
    Underwater acoustic carbon nanotube thermophone 有权

    公开(公告)号：US09838802B1

    公开(公告)日：2017-12-05

    申请号：US15273801

    申请日：2016-09-23

    申请人： Thomas R Howarth ,  Dehua Huang

    发明人： Thomas R Howarth ,  Dehua Huang

    IPC分类号： H04R23/00 ,  G01S7/521

    CPC分类号： H04R23/002 ,  G01S7/521 ,  H04R1/44 ,  H04R2201/028 ,  H04R2307/023

    摘要： A carbon nanotube thermophone is provided which includes a urethane frame having mounting holes at corners of the frame. Screw holes in the frame are provided for a cable holder. A square shaped carbon nanotube material chip is positioned within the urethane frame. The carbon nanotube material chip can comprise multiple carbon nanotube sheets to electrically tune the impedance to match a driving amplifier impedance load. Wooden spacers assist in positioning the carbon nanotube material chip. A first end of a cable is soldered to the carbon nanotube material chip at electrodes of the material chip. A high temperature rated silicon sealant is used for attachment points on the thermophone.

    Passive mode carbon nanotube underwater acoustic transducer
    2.
    发明授权
    Passive mode carbon nanotube underwater acoustic transducer 有权

    公开(公告)号：US09781520B1

    公开(公告)日：2017-10-03

    申请号：US15270166

    申请日：2016-09-20

    申请人： Dehua Huang

    发明人： Dehua Huang

    IPC分类号： H04R23/00 ,  H04R1/44 ,  B82Y15/00

    CPC分类号： H04R23/002 ,  B82Y15/00 ,  H04R1/44 ,  H04R2307/023

    摘要： A passive carbon nanotube transducer is provided. The passive carbon nanotube transducer includes shells as protective walls for the top and bottom housing of the transducer with carbon nanotube sheets affixed between the shells. The shells act as acoustic windows that match the surrounding acoustic medium. A gasket encloses the shells and carbon nanotube sheets of the transducer. Each carbon nanotube sheet has an electrode at both ends. Multiple carbon nanotube sheets are capable of sensing sound induced environment temperature deviations and converting electric voltage or current for passive acoustic detection.

    System and method for filtering network traffic
    3.
    发明授权
    System and method for filtering network traffic 有权
    过滤网络流量的系统和方法

    公开(公告)号：US08788823B1

    公开(公告)日：2014-07-22

    申请号：US10971523

    申请日：2004-10-22

    申请人： Dehua Huang ,  Adam J. Sweeney ,  Pradeep S. Sudame ,  Silviu Dobrota ,  Premkumar Jonnala

    发明人： Dehua Huang ,  Adam J. Sweeney ,  Pradeep S. Sudame ,  Silviu Dobrota ,  Premkumar Jonnala

    IPC分类号： H04L9/32

    CPC分类号： H04L63/10 ,  H04L63/0263

    摘要： Protocol status information is used to perform traffic filtering by dropping messages that are not consistent with the protocol status information. In one embodiment, a method involves comparing message information and protocol status information. The message information is associated with a first message. The protocol status information is obtained in response to one or more second messages, which are conveyed according to a protocol used to assign network addresses to clients. The method also involves determining whether to discard the first message, based on an outcome of the comparison of the message information and the protocol status information. For example, it can be determined that the first message should be discarded, if the message information does not match the protocol status information.

    摘要翻译： 协议状态信息用于通过丢弃与协议状态信息不一致的消息来进行流量过滤。 在一个实施例中，一种方法包括比较消息信息和协议状态信息。 消息信息与第一消息相关联。 响应于根据用于向客户端分配网络地址的协议传送的一个或多个第二消息来获得协议状态信息。 该方法还包括基于消息信息和协议状态信息的比较的结果来确定是否丢弃第一消息。 例如，如果消息信息与协议状态信息不匹配，则可以确定第一消息应被丢弃。

    Acoustic multifunctional standard calibration method
    4.
    发明授权
    Acoustic multifunctional standard calibration method 失效
    声学多功能标准校准方法

    公开(公告)号：US08526270B1

    公开(公告)日：2013-09-03

    申请号：US13228643

    申请日：2011-09-09

    申请人： Dehua Huang ,  Scott K. Mayer

    发明人： Dehua Huang ,  Scott K. Mayer

    IPC分类号： H04B1/02 ,  H04B17/00 ,  G01S3/80

    CPC分类号： G01S7/52004 ,  G01S3/82

    摘要： A method for using a deployable, small package acoustic transmitter device is taught, which serves as a standard acoustic source for on-vessel, in-mission field calibration purposes. The method involves deploying an acoustic transmitter device underwater to provide a predefined acoustic energy source for sonar array detection as well as periodic time-coded acoustic signal pulses for tracking and calibration of passive ranging.

    摘要翻译： 教导了一种使用可部署的小型封装声发射器装置的方法，该装置用作用于船上任务现场校准目的的标准声源。 该方法涉及在水下部署声发射器装置以提供用于声纳阵列检测的预定声能源，以及用于跟踪和校准被动测距的周期性时间编码声信号脉冲。

    System and method for performing security actions for inter-layer binding protocol traffic
    9.
    发明授权
    System and method for performing security actions for inter-layer binding protocol traffic 有权
    为层间绑定协议流量执行安全动作的系统和方法

    公开(公告)号：US07551559B1

    公开(公告)日：2009-06-23

    申请号：US10971521

    申请日：2004-10-22

    申请人： Premkumar Jonnala ,  Adam J. Sweeney ,  Dehua Huang ,  Silviu Dobrota ,  Pradeep S. Sudame ,  Marco E. Foschiano

    发明人： Premkumar Jonnala ,  Adam J. Sweeney ,  Dehua Huang ,  Silviu Dobrota ,  Pradeep S. Sudame ,  Marco E. Foschiano

    IPC分类号： H04L5/12

    CPC分类号： H04L63/1466 ,  H04L63/1416

    摘要： Users are allowed to specify per-interface rate limits for inter-layer binding protocol traffic. If the user-specified rate limit is exceeded on a given interface, inter-layer binding protocol messages received via that interface are caused to be dropped (e.g., by selectively dropping ILBP messages, or by simply shutting down the interface). If the rate is not exceeded, inter-layer binding protocol messages received via that interface can be validated (e.g., by comparing an inter-layer binding included in the body of an inter-layer binding protocol message to protocol status information obtained by snooping protocol messages). If the inter-layer binding does not match the protocol status information, the inter-layer binding protocol message is dropped. If a match is found, the inter-layer binding protocol message is allowed to be forwarded normally. Such systems and methods may be used to inhibit various undesirable network behavior, such as man-in-the-middle attacks.

    摘要翻译： 允许用户为层间绑定协议流量指定每接口速率限制。 如果在给定接口上超过用户指定的速率限制，则会导致通过该接口接收到的层间绑定协议消息（例如，通过选择性地删除ILBP消息，或简单地关闭接口）。 如果不超过该速率，则可以验证通过该接口接收的层间绑定协议消息（例如，通过将层间绑定协议消息正文中包含的层间绑定与通过侦听协议获得的协议状态信息进行比较 消息）。 如果层间绑定与协议状态信息不符，则删除层间绑定协议消息。 如果发现匹配，则允许层间绑定协议消息正常转发。 这样的系统和方法可以用于抑制各种不期望的网络行为，例如中间人攻击。