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21. 发明申请

US20050208986A1 Four frequency band single GSM antenna 有权
标题翻译：四频频单GSM天线
公开(公告)号：US20050208986A1
公开(公告)日：2005-09-22
申请号：US11008616
申请日：2004-12-10
申请人： Fiona Best , Dorothy McClintock , William Lee , Wesley Hartwell , Eric Reed
发明人： Fiona Best , Dorothy McClintock , William Lee , Wesley Hartwell , Eric Reed
IPC分类号： H01Q5/00 , H01Q9/30 , H04Q7/20 , H04Q7/32
CPC分类号： H01Q9/30
摘要： A reach back secure communications terminal capable of GSM network connectivity includes a GSM fixed cellular terminal, and a single whip antenna adapted for user selectable use at any of four distinct frequency bands, e.g., 850, 900, 1800, or 1900. Immediate and secure voice, data and video connectivity is provided to multiple telecommunications networks. Integrated components simplify access to varied networks allowing deployed users to select and connect quickly to a network that best supports their present mission. Networking options include any of PSTN, PBX, GSM (or CDMA or other cell telephone standard), SAT, IP and WiFi. During secure call setup, the reach-back communications terminal exchanges public keys with a remote terminal using FNBDT signaling. Traffic encryption is performed using the NIST approved Advanced Encryption System (AES) standard (Rijndael) and a 128-bit random key (2{circumflex over ( )}128 possible keys).
摘要翻译：能够进行GSM网络连接的到达后端的安全通信终端包括GSM固定蜂窝终端，以及适于用户可选择地使用四个不同频带（例如850,900,1800或1900）的单个鞭状天线。立即和安全语音，数据和视频连接被提供给多个电信网络。集成组件可简化对各种网络的访问，从而允许部署的用户快速选择并连接到最能支持其现有任务的网络。网络选项包括任何PSTN，PBX，GSM（或CDMA或其他手机标准），SAT，IP和WiFi。在安全呼叫建立期间，终端通信终端使用FNBDT信令与远程终端交换公共密钥。使用NIST认证的高级加密系统（AES）标准（Rijndael）和128位随机密钥（2 {circumflex over（）} 128个可能的密钥执行流量加密）。

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