This paper also introduces the basic knowledge of digital watermark technology and digital signature . then according to the signature characteristic written by tablet pen , the author provides a method , which can distinguish the true signature bitmap written by tablet pen from the forgery 本文还利用了数字水印和电子签名的原理，结合手写笔签名的一些重要特点，提出了一种手写笔签名图像的防伪鉴别方法，并给出了具体实现。
Then this paper discusses the realization technique of awareness between multi - users , which use the cursor mark method . for the conference data , the paper provides a managing and recording method , which use access as the background database of application . and the solution of the database security was put forward 然后，在协同感知方面，结合光标标识法研究了手写笔协同工作中感知功能的具体实现；在会议信息数据处理方面，结合数据库技术，提出了使用access数据库中间件作为应用程序后台数据库，处理会议信息的解决方案并给出了相应的数据库安全管理的解决方法。
