Patent ID: 11886245
Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A wearable computing device comprising:
a device body configured to be affixed to a body of a user;
an inertial measurement unit (IMU) including an accelerometer and a gyroscope coupled to the device body at a first IMU mounting location; and
a processor electronically coupled to the IMU, wherein the processor is configured to:
while the device body is affixed to the body of the user, receive kinematic data from the IMU, the kinematic data being in a runtime coordinate frame;
perform a first coordinate transformation on the kinematic data from the runtime coordinate frame into a training coordinate frame of a training wearable computing device to obtain transformed kinematic data, wherein the training wearable computing device has a second device body with a second IMU mounting location that differs from the first IMU mounting location;
at a first machine learning model trained using training data including training kinematic data collected at a training IMU of the training wearable computing device, compute a training-frame velocity estimate for the wearable computing device based at least in part on the transformed kinematic data;
perform a second coordinate transformation on the training-frame velocity estimate from the training coordinate frame into the runtime coordinate frame to obtain a runtime-frame velocity estimate for the wearable computing device; and
output the runtime-frame velocity estimate to a target program.