An acoustic wave force field generator array that uses a plurality of synchronized oscillating emitters system that effectively blocks noise from passing through an acoustic barrier of wave/bubble pattern forms generated by the rapid oscillation of the integrated magnet and emitter system. The movement of the magnets also produces an EM field that generates a current to at least partially power the driver and speaker systems.

An acoustic wave force field generator array that uses a plurality of synchronized oscillating emitters system that effectively blocks noise from passing through an acoustic barrier of wave/bubble pattern forms generated by the rapid oscillation of the integrated magnet and emitter system. The movement of the magnets also produces an EM field that generates a current to at least partially power the driver and speaker systems.

A semiconductor device includes a source, a drain, and a channel electrically connected to the source and the drain. The channel has a channel length from the drain to the source which is less than or equal to an electron mean free path of the channel material. A first gate has two arms, each extending between the drain and the source (i.e., at least a portion of the distance between the source and the drain). Each arm of the first gate is disposed proximate to a corresponding first and second edge of the channel. Each arm of the first gate has a periodic profile along an inner boundary, wherein the periodic profiles of each arm are offset from each other such that a distance between the arms is constant. A Bloch voltage applied to the first gate will reduce the effective channel with such that Bloch resonance conditions are met.

A door/window opening detector including an antenna having at least a first resonant frequency and a second resonant frequency associated therewith, the second resonant frequency being different from the first resonant frequency, the antenna having the first resonant frequency when in proximity to a door/window having a given dielectric constant and the second resonant frequency when not in proximity to a door/window having the given dielectric constant, and an alarm indication generator operable, in response to receiving an indication that a resonant frequency of the antenna has changed from the first resonant frequency to the second resonant frequency, for generating an alarm indication of opening of the door/window.

A door/window opening detector including an antenna having at least a first resonant frequency and a second resonant frequency associated therewith, the second resonant frequency being different from the first resonant frequency, the antenna having the first resonant frequency when in proximity to a door/window having a given dielectric constant and the second resonant frequency when not in proximity to a door/window having the given dielectric constant, and an alarm indication generator operable, in response to receiving an indication that a resonant frequency of the antenna has changed from the first resonant frequency to the second resonant frequency, for generating an alarm indication of opening of the door/window.

According to one embodiment, an electronic circuit includes a first conductive component, a second conductive component, a first current path, and a second current path. The second conductive component is capacitively coupled to the first conductive component. The first current path of a superconductor includes a first portion and a second portion. The first portion is connected to the first conductive component. The second portion is connected to the second conductive component. The first current path includes N first Josephson junctions connected in series and provided between the first and second portions. The second current path of a superconductor includes a third portion and a fourth portion. The third portion is connected to the first conductive component. The fourth portion is connected to the second conductive component. The second current path includes a second Josephson junction connected in series and provided between the third and fourth portions.

According to one embodiment, an electronic circuit includes a first conductive component, a second conductive component, a first current path, and a second current path. The second conductive component is capacitively coupled to the first conductive component. The first current path of a superconductor includes a first portion and a second portion. The first portion is connected to the first conductive component. The second portion is connected to the second conductive component. The first current path includes N first Josephson junctions connected in series and provided between the first and second portions. The second current path of a superconductor includes a third portion and a fourth portion. The third portion is connected to the first conductive component. The fourth portion is connected to the second conductive component. The second current path includes a second Josephson junction connected in series and provided between the third and fourth portions.

A frequency synthesis device with high multiplication rank, including a base frequency generator generating two first base signals of square shape of same frequency and opposite to each other, a first synthesis stage including two first switching power supply oscillators, of which the power supplies are respectively switched by the two first base signals, a second synthesis stage including a second switching power supply oscillator of which the supply is switched by a combination of the output signals of the two first oscillators, the output of the second switching power supply oscillator being filtered by a frequency discriminator circuit realized with an injection locked oscillator.

A recursive digital sinusoid generator generates recursive values used in the production of a digital sinusoid output. The recursive values are generated at a first frequency. A sinusoid value generator generates replacement values at a second frequency, wherein the second frequency is less than the first frequency. The generated recursive values are periodically replaced with the generated replacement values without interrupting production of the digital sinusoid output at the first frequency. This periodic replacement effectively corrects for a finite precision error which accumulates in the recursive values over time.

Oscillator calibration circuits and wireless transmitters including oscillator calibration circuits. An oscillator calibration circuit includes a first frequency locking circuit (FLC) coupled to a first oscillator, wherein the first FLC calibrates the frequency of the first oscillator using an over-the-air reference signal, wherein the first FLC calibrates the first oscillator prior to a data transmission session and remains free running during the data transmission session.