Patent Awarded to Rajant Health for Motion Artifact Removal Tech

Rajant Health Incorporated (RHI) has been granted a new U.S. patent for its Parallel Adaptive Motion Artifact Removal technology, which the company claims is a significant improvement in capabilities for wearable health monitoring.

RHI’s now-patented solution addresses a critical challenge to reduce “motion artifacts” and more accurately compute vital sign measurements during movement. It ushers in a new era of reliability for healthcare providers, patients, and even industrial applications where real-time health and wellness data is key, according to RHI bigwigs.

“This patent is a testament to the ingenuity and dedication of our team at Rajant Health,” RHI CEO Robert Schena said. “By solving the motion artifact challenge, we’re empowering healthcare professionals with more precise vital sign data and opening doors for industrial applications where safety and efficiency depend on real-time insights. It’s a proud moment that reinforces our mission to transform healthcare technology.”

This patented technology enhances wearable devices like smartwatches by cleaning up photoplethysmography (PPG) signals disrupted by movement, such as during exercise. It uses adaptive filters working together to remove noise caused by device shifts, guided by a motion sensor. These filters use data from various IMU sensors to identify and reduce the noise. Furthermore, the system refines heart rate estimates with advanced processing, achieving accuracy within two beats per minute, even during intense activity. During trials, it delivered an average error of just 1.12 beats per minute, matching the precision of finger-worn sensors. This innovation improves healthcare monitoring and supports industrial applications like tracking worker health, safety, and wellness in active and hazardous settings.

“I’m excited to see this technology come to life,” stated RHI DSP Engineer Jack Mountney, key patent contributor. “The CPC architecture we developed takes wearable health monitoring to a new level, ensuring accurate computing during movement. This technology is a game-changer for patients and clinicians alike, and it’s rewarding to know it can make a real difference in people’s lives.”

The patent strengthens RHI’s capabilities in delivering precise vital sign measurements through advanced sensor fusion, setting a new standard for wearable health technology.

Rajant Health Incorporated develops edge-computing PaaS products and no-code solutions for healthcare, biomedical, and industrial applications, enabling real-time data analysis and decision-making. The company also specializes in wearable health monitoring, environmental sensing, and advanced genomics analysis, delivering tools that support precision medicine and next-generation healthcare technologies.