~/talk

Ultra-low-power ring-based wireless tinymouse

on YouTube 12m
Talkat UIST 2025 · 2025-09-28..10-01· [embedded-and-hardware]

speakers

name:Yifan Li
links:none on file
name:Masaaki Fukumoto
links:none on file
name:Mohamed Kari
links:none on file
name:Shigemi Ishida
links:none on file
name:Akihito Noda
links:none on file
name:Tomoyuki Yokota
links:none on file
name:Takao Someya
links:none on file
name:Yoshihiro Kawahara
links:none on file
name:Ryo Takahashi
links:none on file

resources

video:https://youtu.be/zhA_50brcI4
slides:none on file

summary

picoRing mouse implements semi-passive inductive telemetry: a small ring coil with distributed capacitors encodes thumb/index inputs via an MCU-driven resonance shift and a 449 µW modulation, captured by a wristband coil over ~13 mm. The prototype uses a multi-function trackball (8 directions + press), active/standby modes (≈99 µA active, near-zero standby), and a 27 mAh battery to reach roughly 600 hours (8 hr/day) to 1000 hours (4 hr/day) of practical use; SNR holds up on train, car, and crowded places.

AI-written summary · about

chapters (8)

  1. 0:00Introduction
  2. 0:46Picoring Mouse overview
  3. 2:10Power consumption challenges
  4. 3:55Passive inductive telemetry
  5. 6:01Hardware design
  6. 7:49Power modes and battery life
  7. 8:53Applications demo
  8. 10:29Future work and conclusion

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