Patent ID: 11971230
Assignee: ARMAMENTS RESEARCH COMPANY, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC F  G  H | IPC F  G

Claim 0:
1. A method for determining a discharge event of a firearm, the method comprising:
receiving, by an event detection module, acceleration and rotation input signals from an inertial measurement unit configured on the firearm;
assigning respective acceleration and rotation input signals to sample event candidates at respective windows of time;
comparing the acceleration signals of the sampled event candidates to a discharge acceleration template that represents a confirmed weapon discharge event;
identifying a subset of accepted accelerations from the sampled event candidates that satisfy the discharge acceleration template;
comparing a first rotation input signal from the sample window of time associated with each accepted acceleration in the subset to a first rotation template that represents a confirmed weapon discharge event;
determining whether the sampled event candidate is a discharge event based on satisfying both the discharge acceleration template and the first rotation template.