A mobile pen-based computing system for cellular telephone networks

We propose a mobile computing system based on pen computers and cellular telephones, and develop a prototype system. This system extends the personal office information environment to mobile use. To enable effective use of the conventional cellular telephone network, which has a low data communication speed, we propose new ideas to reduce the data communication traffic between the mobile station and the base station, such as distributed collaborative control, fixed business form manipulation using keywords communication, and a server and a gateway for the mobile station which filter and compress the information sent to the mobile station. The effective use of a pen-based human machine interface is also adopted. E-mail, facsimile, and transaction processing are targeted as the main applications of the system.<>