TECHNOLOGY DESCRIPTION
The Frequency-Shifted (FS) Backscatter invention promotes practical backscatter communication for ultra-low power on-body sensors by leveraging radios on existing smart phones and wearables. This invention addresses the self-interference from the wireless carrier without relying on built-in capability to cancel or reject the carrier interference. Utilizing this invention, the tag shifts the carrier signal to an adjacent non-overlapping frequency band and isolates the spectrum of the backscatter signal from the spectrum of the primary signal to enable more robust decoding.
ADVANTAGES
• Can shift signal 20 MHz while only consuming microwatts of power
• Uses convention electronic devices (e.g. smartphones and wearables) as transmitters and receivers
• Communicate with WiFi and Bluetooth radios at a range of 5m and a bitrate of 50 kbps
APPLICATIONS
• Continuous data streaming from on-body sensors
• Multi-carrier communications
• Healthcare/eldercare
ABOUT THE LEAD INVENTOR
Deepak Ganesan is a Professor in the Department of Computer Science at UMass Amherst. His research focuses on ultra-low power wireless communication via backscatter, novel platforms and algorithms for mobile and wearable health sensing, learning and inference on multi-modal sensor data, and micro-powered sensors. Dr. Ganesan leads the UMass Sensors Research Group.
AVAILABILITY:
Available for Licensing and/or Sponsored Research
DOCKET:
UMA 16-055
PATENT STATUS:
Patent Pending
NON-CONFIDENTIAL INVENTION DISCLOSURE
LEAD INVENTOR:
, Deepak Ganesan, Ph.D.
CONTACT: