Design of an IMU-independent Posture Recognition Processing Unit for Head Mounted Devices

We propose a design of a posture recognition processing unit (PRPU) for head mounted devices (HMDs) independent of inertial measurement unit (IMU) types. We design whole system for the PRPU including the control driver and the communication packets. Since any IMU can be attached to the designed processing unit, the hardware developer can select an IMU for their device according to user applications. The proposed design is also can be applied as a co-processor of another processor to reduce the computational burden.