US12624916 - Dry fire device using sound detection

The patent describes a dry fire device that utilizes a microphone to detect sound during its operation, with a controller that analyzes the sound’s amplitude and frequency against pre-stored values. If the detected sound falls within the acceptable range, the device activates a weapon-usage activity; otherwise, no action is taken.
Claim 1
1 . A dry fire device comprising: a housing; a weapon-usage activation assembly, which comprises a microphone, a controller and a memory; and wherein said microphone is configured to sense a sound during use of said dry fire device, and said controller is configured to extract amplitude and frequency data of said sound and compare it to a range of values stored in said memory, and if the sensed sound is in said range, said controller is configured to command said weapon-usage activation assembly to initiate a weapon-usage activity, and if not in said range, no weapon-usage activity is initiated. a housing; a weapon-usage activation assembly, which comprises a microphone, a controller and a memory; and wherein said microphone is configured to sense a sound during use of said dry fire device, and said controller is configured to extract amplitude and frequency data of said sound and compare it to a range of values stored in said memory, and if the sensed sound is in said range, said controller is configured to command said weapon-usage activation assembly to initiate a weapon-usage activity, and if not in said range, no weapon-usage activity is initiated.
Google Patents
https://patents.google.com/patent/US12624916
USPTO PDF
https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12624916