University of Washington engineers present the first battery-free cellphone design that consumes only a few micro-watts of power. The new design can sense speech, actuate the earphones, and switch between uplink and downlink communications, all in real time. The system developed by researchers from the Allen School of Computer Science & Engineering and the UW […]
University of Washington researchers have developed a way to 3D print plastic objects and sensors capable of communicating wirelessly with other smart devices, without the need for batteries or other electronics.
A team of UW CSE and EE researchers introduce Passive Wi-Fi, a system that can generate Wi-Fi transmissions using 10,000 times less power than conventional methods. With this system, Wi-Fi signals can be transmitted at rates up to 11 megabits per second–rates that are lower than maximum Wi-Fi speeds but are 11 times faster than […]
University of Washington researchers have developed a smartphone app that accurately measures jaundice in adults using a selfie and an accessory. BiliScreen is a non-invasive alternative to to blood draws for measuring bilirubin levels in the blood stream. Excess bilirubin can be an indicator of a variety of health conditions – including pancreatic cancer, a […]
UW CSE and EE researchers demonstrate FingerIO, a new technology from CSE’s Networks and Mobile Systems Lab that employs sonar to enable users to interact with their smartphones and smartwatches by gesturing or writing on any nearby surface.
University of Washington researchers have developed the first analog video backscatter system for high-definition video streaming from low-power or battery-free devices. The new system burns as low as 250uW for HD video streaming, which is 1,000x – 10,000x less power than existing approaches, by eliminating the power-hungry components of a typical camera—enabling battery-free HD streaming […]
Paul G. Allen School researchers present CovertBand, which transforms commodity devices with microphones and speakers into active sonar systems capable of tracking people’s movement and activities – even through walls, doors and windows. The high-frequency sonar pulses are concealed within the beats of popular songs, making CovertBand indistinguishable. This means that an attacker can implement […]
University of Washington researchers are developing the first smartphone app capable of objectively screening athletes and others who may be suffering from concussion based on the pupillary light response. This reflex has been used to assess whether a patient has severe traumatic brain injury, and recent research indicates it can be useful in detecting milder […]
A team of UW CSE and EE researchers introduce HemaApp, a smartphone application that enables noninvasive monitoring of patients’ blood hemoglobin concentration. Using the device’s camera and various lighting sources, HemaApp provides a non-invasive alternative for screening patients for anemia and assessing their response to iron supplement treatments. HemaApp works by shining a light through […]
A team of UW CSE and EE researchers have pioneered a technique that enables “smart” posters and clothing to communicate directly with your car radio or smartphone using outdoor FM radio signals. Our key innovation is a modulation technique that transforms backscatter, which is a multiplication operation on RF signals, into an addition operation on […]
A team of UW CSE and EE researchers introduce Interscatter, a novel approach that enables inter-technology communication by converting Bluetooth signals into Wi-Fi transmissions over the air. The system enables power-limited devices such as brain implants, contact lenses and credit cards to communicate with everyday devices such as smartphones and smartwatches. Through Interscatter, UW researchers […]