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公开(公告)号:US20090198772A1
公开(公告)日:2009-08-06
申请号:US12363200
申请日:2009-01-30
申请人: Jung Hun KIM , Chang Hee LEE , Gwan Gyun KANG
发明人: Jung Hun KIM , Chang Hee LEE , Gwan Gyun KANG
IPC分类号: G06F15/16
CPC分类号: H04L67/1095 , H04L67/02
摘要: A data synchronization method for more than three networked devices including at least one client and one server for efficiently synchronizing data among multiple devices supporting a Synchronization Markup Language (SyncML) protocol is provided. The data synchronization method includes determining whether a data item indicated by synchronization information contained in a synchronization request message exists in a change log table of the server, when a server receives the synchronization request message sent by a first client, and updating the change log table by adding the data item indicated by the synchronization information and transmitting a synchronization request message containing a data identifier and the change log of the data item to a second client, if a data item indicated by the synchronization information does not exist, otherwise, ending data synchronization by transmitting a synchronization response message containing status information to the first client.
摘要翻译: 提供了一种用于包括至少一个客户端和一个服务器的三个以上网络设备的数据同步方法,用于在支持同步标记语言(SyncML)协议的多个设备之间有效同步数据。 数据同步方法包括:当服务器接收到由第一客户端发送的同步请求消息并更新更改日志表时,确定包含在同步请求消息中的同步信息指示的数据项是否存在于服务器的变更日志表中 通过添加由同步信息指示的数据项,并且如果不存在由同步信息指示的数据项,则向第二客户端发送包含数据标识符的同步请求消息和数据项的改变日志,否则结束数据 通过向第一客户端发送包含状态信息的同步响应消息来进行同步。