Patent ID: 11946722
Assignee: AXON ENTERPRISE, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 15:
16. A method performed by a system for detecting a presence of a weapon in a holster and an absence of the weapon in the holster, the system comprising a detector, a mount by which the detector is positioned relative to the holster, and a camera, and the method comprising:
entering, by a processing circuit of the detector, a calibrate mode;
while in the calibrate mode, determining, by the processing circuit, a plurality of base-line values associated with the presence of the weapon in the holster or the absence of the weapon in the holster;
entering, by the processing circuit, a field mode;
while in the field mode:
measuring, by the processing circuit, a first value via a sensor circuit of the detector that indicates the presence of the weapon in the holster, wherein the sensor circuit comprises a coil and the sensor circuit provides a current to the coil to generate an electromagnetic field, and wherein the first value comprises a first magnitude of at least one of an inductance and an impedance;
comparing, by the processing circuit, the first value to the plurality of base-line values to determine the presence of the weapon in the holster;
measuring, by the processing circuit, a second value via the sensor circuit that indicates the absence of the weapon in the holster, wherein the second value comprises a second magnitude of the at least one of the inductance and the impedance; and
comparing, by the processing circuit, the second value to the plurality of base-line values to determine the presence of the weapon in the holster; and
responsive to comparing the second value to the plurality of base-line values to determine the presence of the weapon in the holster, wirelessly transmitting, by the processing circuit, a notice via a communication circuit of the detector;

receiving, by the camera, the notice; and
using information transmitted with the notice, initiating, by the camera, video recording of events of an incident, wherein the notice comprises a permissive trigger.