The Unigesture Approach One-Handed Text Entry for Small Devices
The rise of small modern handhelds mandates innovation in user input techniques. Researchers have turned to tilt-based interfaces as a possible alternative for the stylus and keyboard. We have implemented Unigesture, a tilt-to-write system that enables one-handed text entry. With Unigesture, the user can jot a note with one hand while leaving the other hand free to hold a phone or perform other tasks. In this paper, we describe a prototype implementation of Unigesture and outline results of a user study. Our results show that individual variations among users, such as hand position, have the greatest effect on tilt-to-write performance.
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- 1.Mark Weiser. The computer for the 21st century. Scientific American, Sept. 1991.Google Scholar
- 2.Kenneth Fishkin, Anuj Gujar, Beverly Harrison, and Roy Want. Embodied user interfaces for really direct manipulation. Communications of the ACM, Sept. 2000.Google Scholar
- 3.William Hamburgen, Deborah Wallach, Marc Viredaz, Lawrence Brakmo, Carl Waldspurger, Joel Bartlett, Timothy Mann, and Keith Frakas. Itsy: Stretching the bounds of mobile computing. IEEE Computer, April 2001.Google Scholar
- 4.Golan Levin and Paul Yarin. Bringing sketching tools to keychain computers with an acceleration-based interface. In Proceedings of ACM CHI’ 99 Extended Abstracts, 1999.Google Scholar
- 5.Brad Myers, Scott Hudson, and Randy Pausch. Past, present, and future of user interface software tools. ACM Transactions on Computer-Human Interaction, March 2000.Google Scholar
- 6.I. Scott MacKenzie, Hedy Kober, Derek Smith, Terry Jones, and Eugene Skepner. Letterwise: Prefix-based disambiguation for mobile text input. In Proceedings of ACM UIST’ 01, 2001.Google Scholar
- 7.Ken Perlin. Quikwriting: Continuous stylus-based text entry. In Proceedings of ACM UIST’ 98, 1998.Google Scholar
- 8.Tegic Communications. T9 web page. URL: http://www.t9.com.
- 9.M.D. Dunlop and A. Crossan. Dictionary based text entry method for mobile phones. In Proceedings of Mobile HCI 1999, 1999.Google Scholar
- 10.M.D. Dunlop and A. Crossan. Predictive text entry methods for mobile phones. Personal Technologies, 4(2–3), 2000.Google Scholar
- 11.Yin Yin Wong. Rough and ready prototypes:lessons from graphic design. In Proceedings of ACM CHI’ 92 Short Talks, 1992.Google Scholar
- 12.Richard Hogg and Johannes Ledolter.Applied Statistics for Engineers and Physical Scientists. Macmillan Publishing Company, 1987.Google Scholar
- 13.David Goldberg and C Richardson. Touch-typing with a stylus. In Proceedings of ACM INTERCHI’ 93, 1993.Google Scholar
- 14.David Ward, Alan Blackwell, and David MacKay. Dasher — a data entry interface using continuous gestures and language models. In Proceedings of ACM UIST’ 00, 2000.Google Scholar
- 15.Poika Isokoski. A minimal device-independent text input method. Technical report, University of Tampere, 1999.Google Scholar
- 16.George Fitzmaurice, Shumin Zhai, and Mark Chignell. Virtual reality for palmtop computers. ACM Transactions on Information Systems, 11(3), July 1993.Google Scholar
- 17.Jun Rekimoto. Tilting operations for small screen interfaces. In Proceedings of UIST’ 96, pages 167–168, 1996.Google Scholar
- 18.Lars Weberg, Torbjörn Brange, and Åsa Wedelbo-Hannson. A piece of butter on the pda display. In Proceedings of ACM CHI’ 01 Extended Abstracts, 2001.Google Scholar
- 19.Fredrik Kronlid and Victoria Nilsson. Treepredict: Improving text entry on pda’s. In Proceedings of ACM CHI’ 01 Extended Abstracts, 2001.Google Scholar