Twiddler typing

Abstract

An experienced user of the Twiddler, a one-handed chording keyboard, averages speeds of 60 words per minute with letter-by-letter typing of standard test phrases. This fast typing rate coupled with the Twiddler's 3x4 button design, similar to that of a standard mobile telephone, makes it a potential alternative to multi-tap for text entry on mobile phones. Despite this similarity, there is very little data on the Twiddler's performance and learnability. We present a longitudinal study of novice users' learning rates on the Twiddler. Ten participants typed for 20 sessions using two different methods. Each session is composed of 20 minutes of typing with multi-tap and 20 minutes of one-handed chording on the Twiddler. We found that users initially have a faster average typing rate with multi-tap; however, after four sessions the difference becomes negligible, and by the eighth session participants type faster with chording on the Twiddler. Furthermore, after 20 sessions typing rates for the Twiddler are still increasing.Many wearable computer users [7,17] type with the HandyKey Twiddler ( Figure 1). This is a mobile one-handed chording keyboard with a keypad similar to a mobile phone. It has twelve keys arranged in a grid of three columns and four rows CHI 2004 ‫|‬ Paper

RotoSwype

“…A subset of text-entry techniques proposed for handheld devices (feature phones, smartphones, controllers) can potentially be useful for AR/VR scenarios. While there are eyes-free techniques that rely on touch gestures or tapping input on custom layouts [6,9,46], many potentially useful techniques incorporate tilt. Tilt-based text-entry has been explored with the following characteristics: discrete/continuous tilting, custom/standard (12-key, qwerty) layouts, and letterentry/word prediction.…”

STAT: Subtle Typing Around the Thigh for Head-Mounted Displays

“…There is an extensive body of research on techniques for text entry in wearables, including HMDs (e.g. [20,25,41,46]). In general, text entry is a challenge in ubiquitous computing as input either requires a button or key associated with each character, or some form of gesture or chord to describe characters or words.…”

“…In general, text entry is a challenge in ubiquitous computing as input either requires a button or key associated with each character, or some form of gesture or chord to describe characters or words. This, in turn, may require specialized devices [25], additional sensors [41], or learning a new input mapping [46] to effectively input text. Gaze eliminates the need for specialized devices, but is perceived to be "complex, strenuous and slow" [2], and both speech and gaze suffer from issues of social acceptability, especially when compared with on-device interaction [35].…”

TelemetRing: A Batteryless and Wireless Ring-shaped Keyboard using Passive Inductive Telemetry

“…As wearable devices (e.g., smartglasses and smartwatches) are being tightly interwoven into our daily lives, an easy-to-carry and always-available input device is desirable to interact with these devices [22,10,35]. A wireless ring-shaped keyboard, which supports text entry by detecting fnger typing, is one of the promising approaches [11,23].…”