each applicant is limited to purchase at most one notebook, one pda, one pda phone and one printer per transaction 每位申请人只限购买一部手提电脑、一部掌上型电脑、一部pda电话及一部打印机。
network based embedded devices have already come into reality, and they make the most part of information terminal devices these days . the paper introduces the design, implementation and development process of a pda phone system for telecom maintenance purpose 目前,以嵌入式系统为核心的网络终端产品已经成为主要的信息终端之一。论文详述了一款面向电信维护的pda电话系统的设计、实现和开发过程。
in this paper, we analyse the capability of syncml protocol based on the understanding of formal specification of syncml and propose appropriate extension for embedded system development . an implementation is also given based on the platform of pda phone 本文在对syncml数据同步规范研究的基础上,分析syncml同步协议能力,结合嵌入式系统开发的特点提出对协议的扩展,并在智能手机软硬件平台上实现syncml功能。
through those introductions, the paper summarizes the characteristics of the pda phone system as a general embedded system, and issues several possible improvements . and the author hope the paper is worth reference in further research on other embedded systems 通过这些介绍,本文总结了该系统作为嵌入式应用系统在各方面的特点,同时也提出了若干可能的改进,希望在今后对其他嵌入式系统的研究中可以借鉴。
the paper first introduces syncml synchronization specification and characteristic of embedded system development . we also compare syncml protocol with other sync solutions . in next section, we illustrate the requirement and design of a syncml client on pda phone as well as the development and implementation result 文中首先介绍了syncml数据同步规范,嵌入式系统开发的特点,分析了syncml和其它主要同步方案的技术特点,给出了智能手机上syncml功能的需求并在此基础上设计出syncml协议客户端软件框架,最后描述了在智能手机软硬件平台上的开发情况和实现结果。