Abstract: A system and method are disclosed for automatically operating a high voltage resonance circuit. An embodiment of the system includes one or more coils each coil can be an alternating current (AC) coil or a direct current (DC) coil. An embodiment of the system further includes a microprocessor that issues commands to control amplitude and frequency of pulses of the one or more coils to reach and maintain a resonant condition for water treatment. The microprocessor determines whether a coil is an AC coil or a DC coil by detecting whether a capacitor is connected in series with the coil. An embodiment of the system further includes one or more sensors that measure the quality of water and provide feedback to the microprocessor.

Abstract: One embodiment of the present application relates to a water tank for a toilet. The water tank includes a first chamber comprising an orifice for connecting to a toilet bowl. The water tank further includes a free-floating member within the first chamber that is not coupled to any other component and that is configured to selectively engage with and disengage from the orifice to selectively block or allow a flow of water through the orifice. The free-floating member can be selectively disengaged from the orifice via an actuator or a differential pressure within the water tank.

Abstract: An embodiment of a system and method provides a current regulating device that controls or regulates the current provided to electrolysis chambers that produce hydrogen and oxygen gases. One embodiment of the current regulating device uses the temperature of the fluid in the electrolysis chambers to control the widths of the pulses delivered to the electrolysis chambers to regulate production. Another embodiment of the current regulating device regulates and limits the average current delivered to the electrolysis chambers by adjusting the pulse widths, according to the current demanded during each conduction pulse.

Abstract: A system and method are disclosed for automatically operating a high voltage resonance circuit. An embodiment of the system includes one or more coils each coil can be an alternating current (AC) coil or a direct current (DC) coil. An embodiment of the system further includes a microprocessor that issues commands to control amplitude and frequency of pulses of the one or more coils to reach and maintain a resonant condition for water treatment. The microprocessor determines whether a coil is an AC coil or a DC coil by detecting whether a capacitor is connected in series with the coil. An embodiment of the system further includes one or more sensors that measure the quality of water and provide feedback to the microprocessor.

Abstract: A microprocessor-controlled high voltage sensor circuit controls resonant operation of an induction coil—capacitor circuit. The sensor circuit includes an input that receives a high voltage signal from the induction coil—capacitor circuit, an attenuator coupled to the input, wherein the attenuator reduces the high voltage signal to a low voltage signal, a peak detector coupled to the attenuator, the peak detector that holds the low voltage signal and detects a peak value of the low voltage signal, a clipper circuit that limits an output voltage from the peak detector so as to prevent damage to components of the high voltage sensor circuit, and a linear amplifier that receives the low voltage signal from the clipper circuit and amplifies the low voltage signal for detection of resonance conditions in the induction coil—capacitor circuit by a microprocessor coupled to the high voltage sensor circuit.

Abstract: A microprocessor-controlled high voltage sensor circuit controls resonant operation of an induction coil—capacitor circuit. The sensor circuit includes an input that receives a high voltage signal from the induction coil—capacitor circuit, an attenuator coupled to the input, wherein the attenuator reduces the high voltage signal to a low voltage signal, a peak detector coupled to the attenuator, the peak detector that holds the low voltage signal and detects a peak value of the low voltage signal, a clipper circuit that limits an output voltage from the peak detector so as to prevent damage to components of the high voltage sensor circuit, and a linear amplifier that receives the low voltage signal from the clipper circuit and amplifies the low voltage signal for detection of resonance conditions in the induction coil—capacitor circuit by a microprocessor coupled to the high voltage sensor circuit.

Abstract: A selective message broadcasting system. The system can include fixed storage configured to store pre-recorded audio messages. A digital audio system can be coupled to the fixed storage, and can include playback logic for playing back selected ones of the pre-recorded audio messages. A center frequency modulator can be coupled to the digital audio system and the modulator can be configured to modulate the selected ones of the pre-recorded audio messages about a center frequency in a particular broadcast spectrum. Finally, a frequency band comb distributor can be coupled to the center frequency modulator and configured to replicate the modulated selected ones of the pre-recorded audio messages across a set of frequency transmission channels in the particular broadcast spectrum while maintaining a silence interval between each of the frequency transmission channels in the particular broadcast spectrum. Notably, the broadcast spectrum can include the FM spectrum and the AM spectrum.

Abstract: A circuit for determining an indication of a length of a conductor. The circuit includes a terminal for connection to a conductor under test such as a cable. A pulse source is coupled to a sample-hold latch and a re-synchronizer, and the pulse source provides a signal to the terminal for testing the conductor. A voltage comparator is coupled to the terminal for providing a signal to the pulse source and the terminal. The circuit also includes a length error detector coupled to the sample-hold latch, the re-synchronizer, and the pulse source.

Abstract: A selective message broadcasting system. The system can include fixed storage configured to store pre-recorded audio messages. A digital audio system can be coupled to the fixed storage, and can include playback logic for playing back selected ones of the pre-recorded audio messages. A center frequency modulator can be coupled to the digital audio system and the modulator can be configured to modulate the selected ones of the pre-recorded audio messages about a center frequency in a particular broadcast spectrum. Finally, a frequency band comb distributor can be coupled to the center frequency modulator and configured to replicate the modulated selected ones of the pre-recorded audio messages across a set of frequency transmission channels in the particular broadcast spectrum while maintaining a silence interval between each of the frequency transmission channels in the particular broadcast spectrum. Notably, the broadcast spectrum can include the FM spectrum and the AM spectrum.

Abstract: A tag 2 for use in an electronic article surveillance system comprises a magnetically structured component 4 in close proximity to a striplike element 6 of magnetically soft material. The component 4 includes magnetic particles 8 orientated into particular directions in regions 10, 12, preferably at .+-.45.degree. relative to the longitudinal axis of the tag.The tag 2 can be deactivated by longitudinal wiping with a deactivator providing a magnetic field corresponding to the angle of orientation of the particles 8. Deactivation is, therefore, straightforward for a check out operator but not for a potential thief.The orientated particles 8 can be used to define an interpretable code enabling product inventory with deactivation.

Abstract: A magnetic powder core, suitable for use in a low frequency power device, is prepared by a method including the steps of coating an atomized iron powder from an aqueous solution of potassium dichromate, drying the powder, compressing the powder to form a compact and heat treating the compact until it becomes partially sintered. Cores having coercivities below 240.sup.A /m, saturation inductions exceeding 1.3 Tesla and resistivities exceeding 500 microhm cm are disclosed.

Abstract: A layer including magnetizable material and a pigment of lower magnetic susceptibility in a settable coat are subjected to a selectively applied magnetic field gradient in the layer while the coat is unset to cause the magnetizable material to selectively break through the pigment. The coat is then set, while the materials remain in position, to produce a detectable pigmentation pattern of said break-through. The magnetic material may itself be a pigment and break-through the first one to produce an eye-visible pattern. The magnetizable material forms a magnetic susceptibility distribution pattern equivalent to the pigment break-through pattern.The layer having the pigment pattern may be used as a security feature in, e.g. a security document, both the patterns being alterable, once the coating has set, only by damage to the layer.

Abstract: Production of a magnetically and visibly detectable two-layer structure by coating a first layer including a binder with a visibly distinct magnetic material in a dispersion comprising a partial solvent for the binder and selectively applying a magnetic field to cause the magnetic material to migrate into the first layer.