MMM: a user interface architecture for shared editors on a single screen
UIST '91 Proceedings of the 4th annual ACM symposium on User interface software and technology
Tivoli: an electronic whiteboard for informal workgroup meetings
INTERCHI '93 Proceedings of the INTERCHI '93 conference on Human factors in computing systems
A multiple device approach for supporting whiteboard-based interactions
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Using handhelds and PCs together
Communications of the ACM
IEEE Internet Computing
Smart Platform " A Software Infrastructure for Smart Space (SISS)
ICMI '02 Proceedings of the 4th IEEE International Conference on Multimodal Interfaces
The Smart Classroom: Merging Technologies for Seamless Tele-education
IEEE Pervasive Computing
Automatic browsing of large pictures on mobile devices
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
CHI EA '97 CHI '97 Extended Abstracts on Human Factors in Computing Systems
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White board sharing between PC and PDAs is a typical interactive application between PC and mobile device in ubiquitous environment. Due to the limited size of PDA' s screen, when a large amount of clients simultaneously use PDAs to share the server's screen while their viewed areas (or viewports) are different in size and position, the server must transform the viewports to fit the size of PDA for each client and thus will suffer from heavy burden. A novel approach is proposed in this paper to reduce the burden of the server and provide the clients with real time white board sharing. Instead of zooming the viewport to fit PDA's screen for every user, it only zooms the screen nine times; then, chunked encoding is adopted to reduce the cost for encoding the overlapped area of different viewports. The experiment results have demonstrated the efficiency and effectiveness of our approach