Ultra-low-power picoRing mouse Delivers Semi-Permanent AR Control

This research has developed the world's first ultra-low-power ring-based wireless mouse that can operate for over a month on a single full charge of the ring-sized small battery (Figure 1). This breakthrough addresses the challenge of ring-based input devices having short battery life due to their small physical size. Previous research used low-power wireless communication protocols like BLE to transmit data directly from a ring to AR glasses. However, BLE occupies the majority of the ring's power consumption, causing the short lifespan of battery. This research successfully extended the operating time of the ring-based wireless mouse by using a wristband worn nearby as a communication relay to the AR glasses. This research develops middle-range inductive backscatter communication between the ring coil and the wristband coil, reducing power consumption to only about 2% of that required by BLE. Such an ultra-low-power wireless ring could lead to the development of long-lasting input interface for AR glasses.

Figure 1

Papers  

Proceedings: Proceedings of the 38th Annual ACM Symposium on User Interface Software and Technology

Title: Ultra-low-power ring-based wireless tinymouse

Authors: Yifan Li, Masaaki Fukumoto, Mohamed Kari, Shigemi Ishida, Akihito Noda, Tomoyuki Yokota, Takao Someya, Yoshihiro Kawahara, Ryo Takahashi

DOI: 10.1145/3746059.3747615

UTokyoFOCUS | Press Release: https://www.u-tokyo.ac.jp/focus/en/press/z0508_00426.html