Sep 30, 2025

US12430995 - System for non-lethal defense and crowd control in public and private spaces

A non-lethal electronic defense device comprising one or more effects such as light, sonic, ultrasonic, infrasonic, chemical, electrical, or mechanical devices capable of causing intense sensations of disorientation, distress, incapacitation, and/or pain for the purpose of protecting a public or private space from an intruder or attacker exhibiting an intent to cause harm to physical inhabitants or destruction of property therein.

Assignee: Non Lethal Labs LLC
Inventors: Spencer Topel, Lawrence Lopata
Filing date: 2023-06-16

The patent describes a non-lethal electronic defense system designed for crowd control and protection in various environments, utilizing a combination of sensors and sound deterrence subsystems to monitor and respond to threats. The system employs a controller that generates randomized sound signals to disorient or incapacitate potential intruders, enhancing safety in public and private spaces.

Claim 1

A sound deterrence system comprising: a plurality of sensors geographically spaced apart for monitoring threats and generating signals indicating a location of a threat; a plurality of sound deterrence subsystems, at least one of which is located in a vicinity of each of said geographically spaced apart sensor locations; at least one sonic emitter in each of said plurality of sound deterrence subsystems; a controller configured to communicate a driver signal to individual ones of each of said plurality of sound deterrence subsystems based upon receipt of a threat signal from one or more of said plurality of sensors; and an algorithm executing on said controller for generating the driver signal, the algorithm taking a random sample of one or more frequencies from within a frequency domain range, the algorithm taking a random sample of a time interval from within a time domain range, and the algorithm continuously generating and regenerating the driver signal at said random samples of time intervals with said random samples of one or more frequencies. a plurality of sensors geographically spaced apart for monitoring threats and generating signals indicating a location of a threat; a plurality of sound deterrence subsystems, at least one of which is located in a vicinity of each of said geographically spaced apart sensor locations; at least one sonic emitter in each of said plurality of sound deterrence subsystems; a controller configured to communicate a driver signal to individual ones of each of said plurality of sound deterrence subsystems based upon receipt of a threat signal from one or more of said plurality of sensors; and an algorithm executing on said controller for generating the driver signal, the algorithm taking a random sample of one or more frequencies from within a frequency domain range, the algorithm taking a random sample of a time interval from within a time domain range, and the algorithm continuously generating and regenerating the driver signal at said random samples of time intervals with said random samples of one or more frequencies.

Google Patents

https://patents.google.com/patent/US12430995

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12430995