Method for generating high power electromagnetic radiation based on double-negative metamaterial
    2.
    发明申请
    Method for generating high power electromagnetic radiation based on double-negative metamaterial 有权
    基于双负极超材料生成高功率电磁辐射的方法

    公开(公告)号:US20140048725A1

    公开(公告)日:2014-02-20

    申请号:US13589930

    申请日:2012-08-20

    IPC分类号: H01J21/02

    CPC分类号: H01J25/00

    摘要: A method for generating high power electromagnetic radiation based on double-negative metamaterial (DNM), includes providing electrons of an electron beam moving in a vacuum close to an interface between the DNM and the vacuum at a predetermined average speed larger than a phase velocity of an electromagnetic wave propagating in the DNM so as to generate coherent high power radiation. The method can be applied but not limited to high power and compact Terahertz radiation sources and Cherenkov particle detectors and emitters.

    摘要翻译: 一种用于产生基于双负极材料(DNM)的高功率电磁辐射的方法,包括提供电子束的电子,所述电子束以接近DNM和真空之间的界面的真空中以大于相位速度 电磁波在DNM中传播,以产生相干的高功率辐射。 该方法可以应用于但不限于高功率和紧凑的太赫兹辐射源和切伦科夫粒子检测器和发射器。

    Power save schemes for access point solutions
    4.
    发明授权
    Power save schemes for access point solutions 有权
    接入点解决方案的节能方案

    公开(公告)号:US08885531B1

    公开(公告)日:2014-11-11

    申请号:US12751305

    申请日:2010-03-31

    摘要: Apparatus having corresponding computer-readable media comprise: a host device comprising a first network interface configured to communicate over a wired local-area network, and a first processor; and a wireless network device comprising a second network interface configured to communicate over a wireless local-area network, and a second processor configured to cause the second network interface to transmit IEEE 802.11 beacon frames and IEEE 802.11 probe response frames over the wireless local-area network without communicating with the first processor of the host device.

    摘要翻译: 具有对应的计算机可读介质的设备包括:主机设备,包括被配置为通过有线局域网进行通信的第一网络接口和第一处理器; 以及无线网络设备,包括被配置为通过无线局域网进行通信的第二网络接口,以及被配置为使所述第二网络接口在所述无线局域网上传输IEEE 802.11信标帧和IEEE 802.11探测响应帧的第二处理器 网络,而不与主机设备的第一处理器通信。

    HELICAL SLOW-WAVE STRUCTURE
    5.
    发明申请
    HELICAL SLOW-WAVE STRUCTURE 有权
    舒适的慢波结构

    公开(公告)号:US20120119646A1

    公开(公告)日:2012-05-17

    申请号:US13345121

    申请日:2012-01-06

    IPC分类号: H01J25/34

    CPC分类号: H01J23/26 H01J25/34

    摘要: The present invention provides a helical slow-wave structure, including a helix, a metal barrel and several supporting rods. The plurality of supporting rods may be inserted into the lines of the grooves tightly, this increases the contact area between the helix and the plurality of supporting rods. With a proper assembly method, the thermal contact resistance between helix and supporting rod may be decreased. So, the invention may enhance the capability of transferring the heat out of the helical slow-wave structure. The helix may have higher heat capacity, therefore, the helical slow-wave structure may become more firm, and more reliable.

    摘要翻译: 本发明提供了螺旋慢波结构,其包括螺旋,金属筒和几个支撑杆。 多个支撑杆可以紧紧地插入槽的线中,这增加了螺旋和多个支撑杆之间的接触面积。 通过适当的组装方法,螺旋和支撑杆之间的热接触电阻可能会降低。 因此,本发明可以提高将热量从螺旋慢波结构传递出去的能力。 螺旋可能具有较高的热容量,因此,螺旋慢波结构可能变得更坚固,更可靠。

    Roaming method and apparatus for VOIP handset
    6.
    发明授权
    Roaming method and apparatus for VOIP handset 有权
    VOIP手机的漫游方法和装置

    公开(公告)号:US09178722B1

    公开(公告)日:2015-11-03

    申请号:US11932126

    申请日:2007-10-31

    申请人: Yubin Gong

    发明人: Yubin Gong

    摘要: A Voice Over Internet Protocol (VoIP) telephone includes a radio circuit to communicate with a current access point (AP) and other APs of a wireless communication network and a memory to store a scan table. The scan table includes information about candidate APs of the wireless communication network. The information is obtained from probe response transmissions received by the radio circuit from the respective candidate APs after transmission of probe requests from the VoIP telephone. The VoIP telephone further includes a controller which is operable to initiate a roaming process when communication between the VoIP telephone and the current AP degrades. The controller includes several applications, including an application to select a best candidate AP from the scan table, to terminate a voice call with the current AP and to resume the voice call through the radio circuit with the best candidate AP without disrupting the voice call.

    摘要翻译: 互联网语音电话(VoIP)电话包括用于与当前接入点(AP)和无线通信网络的其他AP通信的无线电电路以及用于存储扫描表的存储器。 扫描表包括关于无线通信网络的候选AP的信息。 在从VoIP电话发送探测请求之后,从各个候选AP接收的无线电电路的探测响应传输获得信息。 VoIP电话还包括控制器,其可操作以在VoIP电话和当前AP之间的通信降级时发起漫游过程。 控制器包括若干应用,包括从扫描表中选择最佳候选AP的应用,终止与当前AP的语音呼叫,并通过具有最佳候选AP的无线电电路恢复语音呼叫,而不中断语音呼叫。