-
1.发明公开METHOD, APPARATUS AND SYSTEM FOR PROVIDING ENCRYPTION KEYS IN A SATELLITE COMMUNICATIONS NETWORK 有权方法，装置和系统用于提供加密密钥在卫星通信网络
公开(公告)号：EP1243088A1
公开(公告)日：2002-09-25
申请号：EP00991432.6
申请日：2000-12-22
发明人： BALACHANDRAN, Shridharan , ALPEROVICH, Vladimir , SANNERO, Johan , DAVIDSON, Lee , PETERSSON, Stefan , REICHELT, Martin , SHAKIL, Nauman
CPC分类号： H04L63/0428 , H04B7/18565 , H04L9/083 , H04L63/0435 , H04L63/0464 , H04L2209/80
摘要： The present invention provides a method, apparatus and system for providing one or more encryption keys to a source terminal and one or more end terminals. The present invention allows a non-key generation capable terminal to send and receive encrypted calls. In addition, the present invention increases the security of extended length sessions and compensates for the use of smaller encryption keys by periodically changing the encryption keys. The present invention also allows the bearer paths between terminals to be separately encrypted using different algorithms or no encryption based on limitations imposed by law and the capabilities of the terminals.
-
2.发明授权Method, system and Media Gateway for optimizing the fidelity of a speech signal 有权方法，系统和媒体网关优化的语音信号的保存
公开(公告)号：EP1295439B1
公开(公告)日：2004-02-04
申请号：EP01939057.4
申请日：2001-05-16
CPC分类号： H04M7/1235 , H04M7/0072 , H04M7/1245 , H04M2207/18
摘要： Systems and methods for dynamically optimizing the fidelity of a speech signal received from a wireless telephony device and transmitted through a packet-switched network. In an exemplary embodiment, at least one Quality of Speech (QoS) transmission characteristic is determined for a packet-switched network intermediate to the a first Media Gateway (MGW) and a second MGW; the fidelity of speech transmitted through the packet-switched network being a function of the QoS transmission characteristic. A speech codec is dynamically-selected as a function of the QoS transmission characteristic of the packet-switched network. The speech signal is encoded into speech data using the dynamically-selected speech codec, and transmitted through the packet-switched network from the first MGW to the second MGW. The second MGW decodes the speech data using the dynamically-selected speech codec.
-
公开(公告)号：EP2163110A2
公开(公告)日：2010-03-17
申请号：EP08788836.8
申请日：2008-06-30
CPC分类号： H04Q3/005 , H04Q3/0045 , H04W8/26
摘要： In a mobile telecommunications network (10), a subscriber (29) having a primary subscription on a home mobile network (15) registers one or more flexible subscriber numbers on a secondary network (40) that are associated with the primary subscription. A caller (61) places a call to a subscriber (29) through a serving network using the flexible subscriber number. The flexible subscriber number is translated into a primary MSISDN and the call is connected to the subscriber (29) so that roaming charges to the subscriber (29) are minimized.
摘要翻译： 在移动电信网络中，在家庭移动网络上具有主要订阅的用户登记与主订阅相关联的辅助网络上的一个或多个灵活的用户号码。 呼叫者通过服务网络使用灵活的用户号码向用户发出呼叫。 灵活的用户号码被转换成主MSISDN，呼叫被连接到用户，使得向用户的漫游费用最小化。
-
4.发明公开OPTIMIZING A SPEECH SIGNAL RECEIVED FROM A WIRELESS DEVICE THROUGH A PACKET NETWORK 有权方法，系统和媒体网关优化的语音信号的保存
公开(公告)号：EP1295439A2
公开(公告)日：2003-03-26
申请号：EP01939057.4
申请日：2001-05-16
CPC分类号： H04M7/1235 , H04M7/0072 , H04M7/1245 , H04M2207/18
摘要： Systems and methods for dynamically optimizing the fidelity of a speech signal received from a wireless telephony device and transmitted through a packet-switched network. In an exemplary embodiment, at least one Quality of Speech (QoS) transmission characteristic is determined for a packet-switched network intermediate to the a first Media Gateway (MGW) and a second MGW; the fidelity of speech transmitted through the packet-switched network being a function of the QoS transmission characteristic. A speech codec is dynamically-selected as a function of the QoS transmission characteristic of the packet-switched network. The speech signal is encoded into speech data using the dynamically-selected speech codec, and transmitted through the packet-switched network from the first MGW to the second MGW. The second MGW decodes the speech data using the dynamically-selected speech codec.
-
-
-
搜索结果
4 条记录 (耗时 0.011 秒)
