COMPASS: Rotational Keyboard on Non-Touch Smartwatches
summary
COMPASS implements a circular 26-letter keyboard controlled by a rotational bezel and a physical select button, placing multiple cursors that the system dynamically repositions after each selection to minimize rotation distance. Simulation and two user studies find three cursors is optimal for accuracy versus travel, users pick up at about 9.3 WPM and reach 12.5 WPM after 90 minutes with low error; autocomplete (alpha=0.7) reduces presses and repeated rotations.
AI-written summary · about
chapters (11)
- 0:00Introduction and motivation
- 1:47COMPASS design overview
- 3:12Related work on text entry
- 4:17Dynamic cursor placement strategy
- 7:30Simulation and cursor trade-offs
- 8:58User study results
- 11:10Final design and auto-completion
- 12:56Learning effects and SPC
- 13:41User feedback and limitations
- 14:46Future research directions
- 15:06Q&A session
related talks
21mDualKey: Miniature Screen Text Entry via Finger Identification
20mDriftBoard: A Panning-Based Text Entry Technique for Ultra-Small Touchscreens
17mPersonalized Compass: A Compact Visualization for Direction and Location
21mThe Impact of Word, Multiple Word, and Sentence Input on Virtual Keyboard Decoding Performance
17mFaster Command Selection on Touchscreen Watches
20mTipText: Eyes-Free Text Entry on a Fingertip Keyboard
18mTyping on a Smartwatch for Smart Glasses
12mRingByte: Enhancing Text-Entry Practicality via A Singular Wearable Rotating Smart Ring