DGR technology prevents unauthorized gun users, such as children or criminals, from operating the weapon. This method can also be used in anti-theft devices for vehicles and for controlled entry into and out of secure locations. A follow-up patent application for a device that would prevent unauthorized pilots from gaining control of an airplane is currently under review.

To authorize the gun, the user grips the handle containing pressure sensors. A pressure signature profile is then stored, based on hand size and shape, grip position on the handle, and time variation of the pressure. The pressure measurements from the sensors are monitored by a digital signal processor embedded in the body of the handgun. When the pressure measurements match one of several stored signatures, the gun is allowed to fire. All of the processing and activation occurs during the trigger pull. Although other methods for authenticating handguns are available, most that are currently in use are flawed. For example, the most common method is the external key ring or bracelet that requires the owner to manually unlock the gun before using it. For convenience, most gun owners keep the ring or bracelet and the gun in the same place. Unfortunately, this also makes it convenient for the gun user's child to unlock and use the gun.

By making guns operable only by authorized users, "Smart Gun" technology will prevent many deaths and save the lives of hundreds of children who are killed by accidental gunfire each year. This invention will also benefit police officers, enabling them to exchange weapons among the team, and preventing criminals from being able to use their guns, should they gain access.