Jetto: Using Lateral Force Feedback for Smartwatch Interactions
summary
A wristwatch prototype called Jetto prototype uses an air-jet pneumatic nozzle and a 3.5" TFT with two gear motors and IR encoders to generate localized lateral pushes at specific screen-edge locations and directions; the team measures an average 49% JND for force magnitude and finds discriminable differences require roughly ≈0.5 N change with this setup. Twelve-component hardware runs demo games and videos and preliminary users report stronger immersion and surprise.
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chapters (13)
- 0:00Introduction to Jetto
- 0:26What is Jetto and how it works
- 1:39Motivation for lateral force feedback
- 2:44Related work and inspiration
- 3:04Prototype design and components
- 4:11Force properties for realistic simulation
- 5:39Demo videos and gaming applications
- 7:51JND study methodology
- 10:43JND study results
- 11:04User evaluation findings
- 12:07Future work and limitations
- 13:11Conclusion and takeaways
- 13:41Q&A session
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