ABSTRACT
Since smart phones adopted touchscreen, users have been enjoying large displays. However, when using soft keyboard, the available size of the display becomes less than 50%. In this paper Back Keyboard, a physical keyboard installed backside of mobile phone, is presented. Also the design process with a prototype through a series of studies is described. User evaluation was conducted with the prototype; the average text entry rate was 15.3 WPM (SD: 3.6) and the error rate was 12.2% (SD: 9.0) after a 40-minute typing session. Moreover, the text entry rates of Back Keyboard and general keyboards for PCs did not have significant relations. This means that the prototype could be used smoothly regardless of one's ability of typing on a PC.
- Daniel Wigdor, Clifton Forlines, Patrick Baudisch, John Barnwell, and Chia Shen. Lucid touch: a seethrough mobile device. In Proc. UIST '07. ACM Press, 269--278. Google ScholarDigital Library
- Frank Chun Yat Li, Richard T. Guy, Koji Yatani, and Khai N. Truong. The 1Line keyboard: a QWERTY layout in a single line. In Proc. UIST '11. ACM Press (2011), 461--470. Google ScholarDigital Library
- I. Scott MacKenzie and R. William Soukoreff. 2003. Phrase sets for evaluating text entry techniques. Ext. Abstracts CHI '03. ACM Press, 754--755. Google ScholarDigital Library
- James Scott, Shahram Izadi, Leila Sadat Rezai, Dominika Ruszkowski, Xiaojun Bi, and Ravin Balakrishnan. 2010. RearType: text entry using keys on the back of a device. In Proc. MobileHCI '10. ACM Press, 171--180. Google ScholarDigital Library
- Patrick Baudisch and Gerry Chu. Back-of-device interaction allows creating very small touch devices. In Proc. CHI '09. ACM Press (2009), 1923--1932. Google ScholarDigital Library
- Xiaojun Bi, Barton A. Smith, and Shumin Zhai. Quasi-qwerty soft keyboard optimization. In Proc. CHI '10. ACM Press (2010), 283--286. Google ScholarDigital Library
Index Terms
- Back keyboard: a physical keyboard on backside of mobile phone using qwerty
Recommendations
The 1line keyboard: a QWERTY layout in a single line
UIST '11: Proceedings of the 24th annual ACM symposium on User interface software and technologyCurrent soft QWERTY keyboards often consume a large portion of the screen space on portable touchscreens. This space consumption can diminish the overall user experi-ence on these devices. In this paper, we present the 1Line keyboard, a soft QWERTY ...
One-key keyboard: a very small QWERTY keyboard supporting text entry for wearable computing
OZCHI '06: Proceedings of the 18th Australia conference on Computer-Human Interaction: Design: Activities, Artefacts and EnvironmentsMost of the commercialized wearable text input devices are wrist-worn keyboards that have adopted the minimization method of reducing keys. Generally, a drastic key reduction in order to achieve sufficient wearability increases KSPC (Keystrokes per ...
Sandwich keyboard: fast ten-finger typing on a mobile device with adaptive touch sensing on the back side
MobileHCI '13: Proceedings of the 15th international conference on Human-computer interaction with mobile devices and servicesThis Note introduces a keyboard design that affords ten-finger touch typing by utilizing a touch sensor on the back side of a device. Previous work has used physical buttons. Using a touch sensor has the benefit that it retains the form factor and does ...
Comments