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1. 发明授权

US07899017B2 Switching between two communication modes in a WLAN 失效
标题翻译：在WLAN中切换两种通信模式
公开(公告)号：US07899017B2
公开(公告)日：2011-03-01
申请号：US11377484
申请日：2006-03-16
申请人： Xiu Lan Yu , Ying Chen , Li Hua Tang , Shi Xia Liu
发明人： Xiu Lan Yu , Ying Chen , Li Hua Tang , Shi Xia Liu
IPC分类号： H04W4/00
CPC分类号： H04W48/18 , H04W84/12 , H04W84/18
摘要： Method and system for switching a network application operating in a first communication mode to a second mode within a wireless local area network, comprising: judging whether mobile nodes are neighboring according to location information; when nodes are neighboring inquiring whether mobile nodes want to switch to second mode to run network applications; when all mobile nodes agree to switch to second mode, downloading and installing network application provided by the application server to one of the mobile nodes; configuring each of the mobile nodes with the communication parameters under the second mode; and switching all mobile nodes to the second communication mode to continue the previous network application. The invention dynamically switches between Infrastructure mode and Ad-hoc mode to balance system resources, improve QoS, reduce the communication traffic, waiting time and the cost of the users, and increase the income of the provider of the network service.
摘要翻译：用于将在第一通信模式中操作的网络应用切换到无线局域网内的第二模式的方法和系统，包括：根据位置信息判断移动节点是否相邻; 当节点相邻时询问移动节点是否要切换到运行网络应用的第二种模式; 当所有移动节点同意切换到第二模式时，将应用服务器提供的网络应用程序下载并安装到移动节点之一; 在第二模式下用通信参数配置每个移动节点; 并将所有移动节点切换到第二通信模式以继续以前的网络应用。本发明在基础设施模式和Ad-hoc模式之间动态切换，平衡系统资源，提高QoS，降低通信流量，等待时间和用户成本，增加网络服务提供商的收入。

2. 发明授权

US06940530B2 Determining means, terminal device, system and method for point label placement on a map 失效
标题翻译：确定方法，终端设备，系统和地图上贴标签的方法
公开(公告)号：US06940530B2
公开(公告)日：2005-09-06
申请号：US10442022
申请日：2003-05-20
申请人： Ying Chen , Xiu Lan Yu , Fang Yan Rao
发明人： Ying Chen , Xiu Lan Yu , Fang Yan Rao
IPC分类号： G06F17/00 , G06T17/40 , G06T17/50 , G09B29/00 , G09B29/10 , G09G5/00
CPC分类号： G06T19/00 , G01C21/3673 , G06T17/05 , G06T2219/004 , G09B29/106
摘要： Provides point label placement determining methods, apparatus and systems. A point label placement determining method and system are used in map browsing service based on session mode. In an example embodiment, initial label placement data in a scale is calculated by a static point label determining method. When a user requires a map browsing service, the requirement are met by using an incremental label placement method on the base of said initial label placement data. The incremental point label placement method dramatically reduces the cost for service process. Therefore, the simultaneous requirements of a large number of users can be met. The present invention is successfully used in location based service systems.
摘要翻译：提供点标签放置确定方法，设备和系统。基于会话模式的地图浏览服务使用点标签放置确定方法和系统。在示例实施例中，通过静态点标签确定方法来计算标度中的初始标签放置数据。当用户需要地图浏览服务时，通过在所述初始标签放置数据的基础上使用增量标签放置方法来满足要求。增量点标签放置方法大大降低了服务过程的成本。因此，可以满足大量用户的同时要求。本发明成功地用于基于位置的服务系统。

3. 发明授权

US06983205B2 Compressing location data of moving objects 失效
标题翻译：压缩移动物体的位置数据
公开(公告)号：US06983205B2
公开(公告)日：2006-01-03
申请号：US10729225
申请日：2003-12-05
申请人： Ying Chen , Fang Yan Rao , Xiu Lan Yu
发明人： Ying Chen , Fang Yan Rao , Xiu Lan Yu
IPC分类号： G01C21/26 , G06F19/00
CPC分类号： H03M7/30 , Y10S707/99942
摘要： Provides methods, apparatus and system for compressing a large number of continuous location data of moving objects. A large number of continuous location data of moving objects sent from a mobile unit or a locating device are received, these location data are compressed and inserted the compressed location data into a database, so as to solve the problem that the data can not work under a high insertion frequency, and reduce the storage space of continuous locations while maintaining certain location query precision. An example apparatus for compressing the location data of moving objects, comprises: input interface for receiving current location data of a moving continuously; data compressing unit for compressing the location data received via said input interface; and output interface for outputting compressed location data of the moving object.
摘要翻译：提供用于压缩移动物体的大量连续位置数据的方法，装置和系统。接收到从移动单元或定位设备发送的大量运动对象的连续位置数据，将这些位置数据进行压缩，并将压缩的位置数据插入到数据库中，以解决数据不能正常工作的问题插入频率高，并且在保持一定的位置查询精度的同时减少连续位置的存储空间。用于压缩移动物体的位置数据的示例性装置包括：用于接收连续移动的当前位置数据的输入接口; 数据压缩单元，用于压缩经由所述输入接口接收的位置数据; 以及用于输出移动物体的压缩位置数据的输出接口。

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