Proxy Server for WWW in a Mobile Computing

摘要

We are now investigating the mobile computing environment on which a user can use multimedia applications efficiently and comfortably. This paper describes Mobile Proxy Server system, which support mobile WWW accsess. Recent diffusion of the telecommunication de- vices like PDC or PHS makes it possible to access the WWW pages in mobile environment. But, such devices can support the slow communication, and most WWW pages have a large volume of image data. So, people can not access those WWW pages comfortably. There is another problem that history function for visiting the pages which user have accessed can not be used from another terminal. We solved these problems by reducing the data volume of images using dynamic media conversion on the proxy server and by managing history data on the proxy server.