Abstract: A magazine-based firearm interlock that can be added to a commercial firearm, with a release/locking device on the firing mechanisms enabled by an electro-permanent magnet, control electronics in the removable magazine, and authorized through a wearable authorization device. Modifications are applied to the trigger bar or sear mechanism which enables it to be changed to an unlocked state, which allows a shot to be fired, and to a locked state, which prevents a shot from being fired. A communication system includes a chip set in the firearm magazine that communicates with a FOB carried by the user, which authenticates the user and activates the electro-permanent magnet to enable the firearm to fire. This system is preferably a near field communication system that couples to and transmits across the body of the user. Indicators can be included to indicate the operational state of the interlock and to detect and record discharges.

Abstract: Disclosed herein is a method of operating a remote control system having a touch interface. The method comprises receiving a user input through the touch interface, generating a control communication corresponding to the user input and transferring the control communication from a communication transceiver to remotely control a display of content on a video display system, receiving into the communication transceiver supplemental content for display on the touch interface, and displaying the supplemental content on the touch interface while the video display system displays the content.

Abstract: A magazine-based firearm interlock that can be added to a commercial firearm, with a release/locking device on the firing mechanisms enabled by an electro-permanent magnet, control electronics in the removable magazine, and authorized through a wearable authorization device. Modifications are applied to the trigger bar or sear mechanism which enables it to be changed to an unlocked state, which allows a shot to be fired, and to a locked state, which prevents a shot from being fired. A communication system includes a chip set in the firearm magazine that communicates with a FOB carried by the user, which authenticates the user and activates the electro-permanent magnet to enable the firearm to fire. This system is preferably a near field communication system that couples to and transmits across the body of the user. Indicators can be included to indicate the operational state of the interlock and to detect and record discharges.

Abstract: A smoke detection sensor ion chamber has a leakage current that is dependent upon the permittivity of the ionized gas (air) in the chamber. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes the permittivity thereof that is large enough to detect by measuring a change in the leakage current of the ion chamber.

Abstract: A smoke detection sensor ion chamber has a capacitance and a change in the permittivity of that capacitance dielectric (ionized air in the chamber) may be used to detect the presence of smoke therein. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the ion chamber.

Abstract: A smoke detection sensor ion chamber has a capacitance and a change in the permittivity of that capacitance dielectric (ionized air in the chamber) may be used to detect the presence of smoke therein. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the ion chamber.

Abstract: A handheld, stylus-type input device for interfacing with a touch screen having an array of sensor nodes (e.g., a capacitive touch screen) may include a handheld body having a first end, a tip at the first end, an electrode arranged at least partially within the body, and a circuit configured to produce an electrical potential on the electrode to generate an electric field proximate the stylus tip. When the stylus tip is placed in contact with the touch screen, the electric field activates one or more sensor nodes outside of a physical contact area between the tip and the touch screen, producing an effect on the sensor nodes similar to that of a finger or other object having a larger contact area with the touch screen than the stylus, thus providing activation of the touch screen while providing better view of the screen near the point of contact.

Abstract: A capacitor having air dielectric between its plates may be used to detect the presence of smoke and other contaminants in the dielectric air passing over the plates of the capacitor. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air creates a change in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the capacitor having the air dielectric through which the air laden carbon particles pass through.

Abstract: A handheld, stylus-type input device for interfacing with a touch screen having an array of sensor nodes (e.g., a capacitive touch screen) may include a handheld body having a first end, a tip at the first end, an electrode arranged at least partially within the body, and a circuit configured to produce an electrical potential on the electrode to generate an electric field proximate the stylus tip. When the stylus tip is placed in contact with the touch screen, the electric field activates one or more sensor nodes outside of a physical contact area between the tip and the touch screen, producing an effect on the sensor nodes similar to that of a finger or other object having a larger contact area with the touch screen than the stylus, thus providing activation of the touch screen while providing better view of the screen near the point of contact.

Abstract: A capacitor having air dielectric between its plates may be used to detect the presence of smoke and other contaminants in the dielectric air passing over the plates of the capacitor. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air creates a change in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the capacitor having the air dielectric through which the air laden carbon particles pass through.

Abstract: Disclosed herein is a method of operating a remote control system having a touch interface. The method comprises receiving a user input through the touch interface, generating a control communication corresponding to the user input and transferring the control communication from a communication transceiver to remotely control a display of content on a video display system, receiving into the communication transceiver supplemental content for display on the touch interface, and displaying the supplemental content on the touch interface while the video display system displays the content.