US 12,467,940 B1
Systems and methods for high-quality jerk data
Raymond Zandbergen, Enschede (NL)
Assigned to Movella Holdings B.V., Enschede (NL)
Filed by Movella Holdings B.V., Enschede (NL)
Filed on Oct. 21, 2022, as Appl. No. 18/048,789.
Int. Cl. G01P 15/08 (2006.01); A61B 5/00 (2006.01); G01P 13/00 (2006.01)
CPC G01P 15/08 (2013.01) [A61B 5/4504 (2013.01); A61B 5/7235 (2013.01); G01P 13/00 (2013.01); A61B 2562/0219 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for measuring movement of a user with an inertial measurement unit (IMU) comprising:
determining, with a plurality of accelerometers in the IMU, a plurality of high bit-rate acceleration data in response to a movement by the user;
determining, with a processor in the IMU, a plurality of low bit-rate acceleration data in response to the plurality of acceleration data;
computing, with the processor in the IMU, a plurality of gravity vector data in response to the plurality of low bit-rate acceleration data;
computing, with the processor in the IMU, a plurality of jerk data in response to the plurality of high bit-rate acceleration data; and
outputting, with the IMU, the plurality of gravity vector data and the plurality of jerk data to an external processing unit.