Abstract: An apparatus for interfering with locomotion of a target by conducting a current through the target. The apparatus includes, according to various aspects of the present invention, a transformer, a resistance in series with the secondary winding of the transformer, and a detector that detects the current through the resistance. The current provided through the target flows through the resistance. The detector operates to detect an amount of charge provided to the target.

Abstract: A cartridge for a system that uses a stimulus signal for immobilizing a human or animal target includes a propellant and a projectile propelled away from about the cartridge by the propellant. The projectile includes a power supply, a waveform generator, and several electrodes. The waveform generator is powered by the power supply. The waveform generator includes a processor. The electrodes complete a stimulus delivery circuit to conduct a current through the target. The waveform generator generates the current to include a first series of pulses and a second series of pulses. The second series begins after the first series is completed. The first series has a first pulse repetition rate determined by the processor. Each pulse of the first series has a first pulse width of from about 10 to about 1000 microseconds. Each pulse of the first series delivers through the target a first charge per pulse of from about 50 to about 500 microcoulombs.

Abstract: An electrified projectile, according to various aspects of the present invention, delivers a current through electrodes and through a target. The projectile stows the electrodes with a film and deploys the electrodes in the absence of the film. Deployment is accomplished by a release of torsion. A spur may include two electrodes and a loop. The spur may store the torsion and conduct the current.

Abstract: A deployment unit for use with an electronic weapon includes a body, an electrode, an electrical interface and tether wire, and a cover. The body has a cavity with an opening. The electrode is stored in the cavity. The electrical interface and tether wire conduct a current from the electronic weapon through the electrode. The cover is coupled to the body over the opening. Activation of a provided propellant, in any order (a) provides a force that pushes the cover away from the body to open the cavity; and (b) deploys the electrode from the cavity through the opening toward a provided target for conducting the current through the target that interferes with locomotion by the target. Prior to pushing the cover away from the body, no portion of the electrode contacts the cover.

Abstract: A cartridge for a system that uses a stimulus signal for immobilizing a human or animal target includes a propellant and a projectile propelled away from about the cartridge by the propellant. The projectile includes a power supply, a waveform generator, and several electrodes. The waveform generator is powered by the power supply. The waveform generator includes a processor. The electrodes complete a stimulus delivery circuit to conduct a current through the target. The waveform generator generates the current to include a first series of pulses and a second series of pulses. The second series begins after the first series is completed. The first series has a first pulse repetition rate determined by the processor. Each pulse of the first series has a first pulse width of from about 10 to about 1000 microseconds. Each pulse of the first series delivers through the target a first charge per pulse of from about 50 to about 500 microcoulombs.

Abstract: Systems and methods inhibit locomotion of a human or animal target in a denial zone. Acquiring the target includes forming a prediction of at least two locations of impact on the target and testing the prediction according to criteria that may include whether the locations are within a boundary corresponding to the target and whether the locations are separated by a minimum physical and/or electrical distance. The two locations may serve for conducting a current through the target for impeding locomotion by the target. The current may be repeated in response to determining that locomotion was not sufficiently impeded. Determination may depend on analysis of video of the target.

Abstract: An electronic weapon system includes a terminal for a local stun function, a deployment unit for a remote stun function, and a barrier, removal of which during deployment enables a circuit for the remote stun function that includes the terminal.

Abstract: A system according to various aspects of the present invention predicts remaining battery capacity for a battery used by a device. The system includes a memory that stores indicia of remaining battery capacity and a plurality of predefined increments of battery capacity consumption. The system further includes a circuit that determines a duration of operating corresponding to one or more of the increments and stores in the memory a predicted remaining battery capacity, adjusted in accordance with the duration and the one or more increments. Other systems, according to various aspects of the present invention, further include a display indicating remaining battery capacity, for example, as a percentage of initial battery capacity, and/or temperature compensation.

Abstract: A system for performing a function with respect to a zone includes a controller, a network, and a plurality of subsystems. The controller issues a first series of commands. Each command of the first series has a first ordinal. The plurality of subsystems is coupled to the controller via the network. A particular subsystem determines a role in accordance with a physical position of the particular subsystem relative to another subsystem of the plurality of subsystems. The particular subsystem counts commands of the series to determine for a particular command the first ordinal. The particular subsystem performs a function with respect to the zone in accordance with the particular command of the series, in further accordance with the first ordinal, and in further accordance with the role.

Abstract: An electronic weapon, when combined with a unit for deployment, causes skeletal muscle contractions in a human or animal target. According to the present invention, a launch controller for an electronic weapon includes a detector, a stimulus signal generator, and a switch. When the switch is conducting, it completes a circuit in combination with a unit for deployment. The circuit, when completed, operates a propellant of the unit for deployment to deploy at least two electrodes of the unit for deployment to enable the stimulus signal generator to deliver through the target a stimulus current to incapacitate the target by causing contractions of the skeletal muscles of the target. The detector is coupled to the switch and detects whether the switch is conducting prior to combining the unit for deployment and the electronic weapon.

Abstract: A round, according to various aspects of the present invention, comprises an electrified projectile and a case. The projectile delivers a current through a target to incapacitate the target by causing skeletal muscle contractions. The case mechanically couples to a rear portion of the projectile to hold the projectile in the case.

Abstract: An apparatus for interfering with locomotion of a target by conducting a current through a load that includes an ionizable path. The apparatus includes, according to various aspects of the present invention, an energy source, an ionization detector, a charge detector, a controller, and a pulse generator. The controller determines, in response to the detector and by trial and error, a respective quantity of energy for each pulse of a plurality of pulses to be generated. For each pulse of the plurality, the pulse generator receives the respective quantity of energy from the energy source, provides in response to the quantity of energy a respective voltage to ionize the ionization path, and provides the current through the load. The charge detector detects a charge provided through the load. The processor sets the voltage for charging for a next pulse in response to the charge detected by the charge detector.

Abstract: An electronic demotivator demotivates a human by passing current via electrodes in tissue or spaced from tissue by a gap. The demotivator includes first and second energy sources, a power supply, and a switch. The first source couples to a first circuit for transferring energy through tissue. The switch conducts after an activation voltage exists. The first circuit includes the switch and first and second electrodes. Coupling causes a first voltage to be divided among the switch and the gap. If the activation voltage does not exist by coupling, the supply increases the energy of the second source for activation. By activation, the second source becomes part of a second circuit for transferring energy from the second source through tissue. The second circuit includes the switch and first and third electrodes to recover when coupling does not lead to ionizing air in the gap.

Abstract: An apparatus records a use of force. The apparatus includes a weapon that initiates application of the force against a target, being a person or animal, to stop undesired behavior by the target. The apparatus further includes a processing circuit that provides, after an operation of the weapon, indicia of a prompt. The prompt elicits a spoken reply from an operator of the apparatus. The reply describes the use of force, and records indicia of the reply received from a provided input device. A method of operation of an electronic weapon includes applying a force wherein applying comprises passing a current through tissue of a target to produce contractions in skeletal muscles of the target to impede locomotion by the target; and recording a description of the application, the description in accordance with operator input.

Abstract: An apparatus produces contractions in skeletal muscles of a target to impede locomotion by an animal or human target. The apparatus is used with at least one electrode for conducting a current through the target. The apparatus may be implemented as an electronic disabling device. The apparatus includes two circuits. The first circuit includes a transformer and a first capacitor. The second circuit includes a second capacitor and a secondary winding of the transformer. The second circuit is a series circuit with the electrode. In operation with the electrode, the transformer impresses a voltage on the electrode of greater magnitude than the first voltage, and the current is responsive to discharge of the first capacitor and discharge of the second capacitor.

Abstract: Locomotion by a target is inhibited by passing a current through the target according to various aspects of the present invention. For instance, a circuit having a processor and a signal generator controlled by the processor to provide the current may perform a method that includes: (a) providing the current for a first duration to interfere with the target's voluntary use of its skeletal muscles as a consequence of contractions of the muscles responsive to the current, the current for the first duration comprising a first series of pulses; and (b) providing the current for a second duration sufficient to cause, in the response to the current, contractions of skeletal muscles of the target or pain in the target, the current for the second duration comprising a second series of pulses. The first series of pulses delivers a first power through the target and the second series of pulses delivers a second power through the target less than the first power.

Abstract: An apparatus, according to various aspects of the present invention, produces contractions in skeletal muscles of a target to impede locomotion by the target. The apparatus is used with a provided deployment unit that deploys an electrode away from the apparatus. The electrode conducts a current through the target. The apparatus includes a terminal; a producing sub-system for producing an electric arc to warn the target without conducting a current through the target; a conducting sub-system for conducting the current in series through the terminal and through the target; an initiating sub-system for initiating deployment of the electrode; and an operator interface. The operator interface facilitates, prior to deployment of the electrode, repeated operation of any one or both of the producing sub-system and the conducting sub-system.

Abstract: An electronic weapon impedes locomotion by a target by conducting a current through an electrode and through the target to produce contractions in skeletal muscles of the target. The weapon may include a deployment unit to deploy one or more electrodes in trajectories toward the target. The deployment unit may include covered tubes for the electrodes. Removing the cover may be accomplished with a ram urged against the interior of the cover by an electrode. The cover may include frangible material with grooves for repeatable material separation. The cover may include fasteners that simplify assembly of the cover onto the body of the deployment unit. The fasteners may include hooks with grooves that disjoin from the cover enabling a more repeatable removal of the cover. Electrode trajectories are more accurate as a result of operation of the rams and the structures of the frangible cover.