Abstract: An antenna for wireless communication of a hearing device is shielded efficiently in a simple manner from electrical and magnetic interference fields by providing a coil apparatus and a shielding apparatus. The shielding apparatus has a flexible substrate as its main body and is formed as a single piece. The shielding apparatus is subdivided into three sections by two slits having ends not reaching the edge of the substrate. The coil apparatus is inserted through the two slits in the shielding apparatus in such a way that each of the sections only partially surrounds the coil apparatus in a circumferential direction. The sleeve-type shield can thus be applied on the coil apparatus in a simple manner. A method for manufacturing an antenna for a hearing device is also provided.

Abstract: An electronic device may have wireless circuitry with antennas. An antenna may have an inverted-F antenna resonating element, an antenna ground, and other resonating element structures. A tip of the antenna resonating element and the antenna ground may be separated by a peripheral housing gap filled with plastic. The antenna may be sensitive to capacitance changes induced by the presence of a user's hand overlapping the gap or other portions of the antenna. A hand capacitance sensing electrode may be mounted in the plastic of the gap or elsewhere in the vicinity of the antenna. A transmission line may couple the hand capacitance sensing electrode to the antenna to retune the antenna in the event that the user's hand overlaps the antenna.

Abstract: An antenna apparatus can include a transmission medium that is positioned within layers of an antenna apparatus that are positioned adjacent to a first upper layer that is configured to include a signal receiving and transmission element (e.g. an antenna, patch antenna, etc.). The transmission medium can include or otherwise be connected to one or more resonators so that only a signal within a pre-selected band is passable through the transmission band. Any signal in a band outside of the pre-selected band may not be passable through the transmission medium due at least in part to the resonators. In some embodiments, the transmission medium may be part of a stripline or a microstrip. Embodiments of the apparatus may also be configured to block backward radiation emittable from the antenna to help prevent a body of a person near that device from absorbing such radiation.

Abstract: An object is to solve a problem in that, in a light-emitting device including a plurality of units including a light-emitting element group connected in series, when disconnection is caused, a current does not flow to the whole of the unit and the whole of the unit is in a non-light emitting state. A light-emitting device has a circuit in which a plurality of units each including a light-emitting element group connected in series using a connection wiring group is provided and the plurality of units is connected in parallel. Further, the circuit includes a subsidiary wiring for electrically connecting one of the connection wirings included in one of the units and one of the connection wirings included in another of the units, whereby a countermeasure against disconnection can be taken.

Abstract: A selective radiation utilization apparatus includes an optical filtering device and a modulation device. The optical filtering device transmits one or more selected spectral bands of incoming solar radiation and reflects one or more remaining bands of the incoming solar radiation. The modulation device spatially modulates one of the one or more selected spectral bands or the one or more remaining bands and directs the spatially modulated one of the one or more selected spectral bands or the one or more remaining bands towards a target of illumination.

Abstract: Light-based systems for communicating information associated with service orders and/or the identification of personal objects are disclosed. A personal mobile electronic communication device is used in conjunction with a communication network and a lighting controller to communicate service orders by lighting with one or more individually controllable luminaires in a lighting network. A personal mobile electronic communication device is, alternatively or additionally, used in conjunction with a communication network, and a lighting controller controlling an illumination proximate to the personal mobile electronic communication device such that the illumination proximate to the personal mobile electronic communication device visually indicates the service order.

Abstract: Disclosed is an antenna system and method to optimize the design of an antenna using resistive sheets. The system and method are operative to design a topology of a resistive sheet to mitigate the adverse effects caused by the inherent losses of resistive sheets while operating as antennas. The system is designed to reduce a plurality of radiofrequency current “hot spots” and “pinch points,” associated with the flow of a current on a resistive sheet, by a sufficient extent so as to enable radiation of electromagnetic waves at substantially higher radiation efficiency as compared with antennas designed using traditional design techniques.

Abstract: An electronic system includes controller to control a switching power converter to provide power to a load. To control the amount of power provided to the load, in at least one embodiment, the controller senses a current value representing a current in the switching power converter and detects when the current value reaches a target peak value. However, due to delays in the controller and/or the switching power converter, the detected target peak value will not be the actual current peak value generated by the switching power converter. In at least one embodiment, the controller adjusts the detected target peak value with a post-detection delay compensation factor to generate a delay compensated current value that more accurately represents an actual peak current value associated with the current in the switching power converter.

Abstract: A radiant tube (4) for guiding a charged particle stream (10) has a hollow cylindrical isolation core (6) directly encompassing a beam-guiding hollow volume (8). The isolation core (6) is formed from a dielectrically acting carrier substrate (14) and an electrical conductor (16) held therein. The conductor (16) is divided into a plurality of conductor loops (20) completely encompassing the circumference of the isolation core (6) at different axial positions of the isolation core (6). The conductor loops (20) are galvanically connected to each other.

Abstract: A first entity communicates with a second entity over a shared power bus by switching the bus to a high-impedance state and modifying the voltage on the power bus, in accordance with an outgoing communication, such that the modified voltage is detected by the second entity and the communication is received thereto.

Abstract: A cathode of a magnetron having a radial extension to accommodate the cathode terminals is supported by arms which have a greater diameter over the region in which they are supported in the glass thimble than over the region of the free ends. This shifts any vibrations to a higher frequency band, which is less liable to be excited in the event the magnetron is moved rapidly as in a linac used for radiotherapy purposes.

Abstract: An apparatus and methods are disclosed for ion beam extraction. In an implementation, the apparatus includes a plasma source (or plasma) and an ion extractor. The plasma source is adapted to generate ions and the ion extractor is immersed in the plasma source to extract a fraction of the generated ions. The ion extractor is surrounded by a space charge formed at least in part by the extracted ions. The ion extractor includes a biased electrode forming an interface with an insulator. The interface is customized to form a strongly curved potential distribution in the space-charge surrounding the ion extractor. The strongly curved potential distribution focuses the extracted ions towards an opening on a surface of the biased electrode thereby resulting in anion beam.

Abstract: A power distribution system includes controller of a switching power converter to control the switching power converter and determine one or more switching power converter control parameters. In at least one embodiment, the controller determines the one or more switching power converter control parameters using a resonant period factor from a reflected secondary-side voltage and an occurrence of an approximate zero voltage crossing of the secondary-side voltage during a resonant period of the secondary-side voltage. In at least one embodiment, the switching power converter control parameters include (i) an estimated time of a minimum value of the secondary-side voltage during the resonant period and (ii) an estimated time at which a current in the secondary-side of the transformer decayed to approximately zero.

Abstract: Provided herein are systems and methods for operating a traveling wave linear accelerator to generate stable electron beams at two or more different intensities by varying the number of electrons injected into the accelerator structure during each pulse by varying the width of the beam pulse, i.e., pulse width.

Abstract: A lighting device includes a first and a second gate circuit having a first input to which a high frequency square wave signal generated from a high frequency oscillation circuit is inputted and a second input to which a first low frequency square wave signal is inputted; and a second gate circuit having a first input to which the high frequency square wave signal is inputted and a second input to which a second low frequency square wave signal is inputted. Each of the first and the second low frequency square wave signal has a frequency lower than that of the high frequency square wave signal, and the first and the second low frequency square wave signal determine whether the high frequency square wave signal is supplied, as on/off switching signals, to the first and the second switching power supply circuit, respectively.

Abstract: A first device that may include a short tolerant structure, and methods for fabricating embodiments of the first device, are provided. A first device may include a substrate and a plurality of OLED circuit elements disposed on the substrate. Each OLED circuit element may include a fuse that is adapted to open an electrical connection in response to an electrical short in the pixel. Each OLED circuit element may comprise a pixel that may include a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. Each of the OLED circuit elements may not be electrically connected in series with any other of the OLED circuit elements.

Abstract: Provided is a charged particle beam radiation control device that controls radiation of a charged particle beam, the charged particle beam radiation control device including: a controller which controls an acceleration voltage for accelerating charged particles, wherein the controller includes a set acceleration voltage controller which selects a non-radiation state of a charged particle beam by setting an acceleration voltage of a radiation state of the charged particle beam to a reference acceleration voltage and changing the acceleration voltage to a set acceleration voltage larger or smaller than the reference acceleration voltage.

Abstract: A legacy-type fluorescent lamp fixture involves a magnetic ballast and a starter unit socket. Power savings are realized by using a retrofit fluorescent lamp assembly in place of the fluorescent lamp that would ordinarily by held in the fixture. The retrofit assembly may, for example, have a smaller fluorescent lamp. A digitally controlled electronic ballast within the retrofit assembly drives the smaller fluorescent lamp efficiently, thereby achieving power savings. In addition, an RF-enabled switch is installed in the starter unit socket. The RF-enabled switch communicates multi-bit digital control signals in serial fashion from the starter socket, through existing wires of the fixture, through the lamp holders of the fixture, and into the retrofit assembly. The electronic ballast receives these signals, decodes them, and in response turns on or turns off its lamp as commanded. Additional power savings are thereby achieved by keeping the lamp off when it is not needed.

Abstract: Provided herein are systems and methods for operating a traveling wave linear accelerator to generate stable electron beams at two or more different intensities by varying the number of electrons injected into the accelerator structure during each pulse by varying the electron beam current applied to an electron gun.

Abstract: A multichip package structure includes a substrate unit, a light-emitting unit, a control module, a frame unit and a package unit. The substrate unit includes a first chip-placing region and a second chip-placing region. The light-emitting unit includes a plurality of light-emitting chips electrically connected to the first chip-placing region. The control module includes at least one current-limiting unit and the rectifier unit electrically connected to the second chip-placing region and the light-emitting unit. The frame unit includes a first annular colloid frame surrounding the light-emitting chips and a second annular colloid frame surrounding the current-limiting unit and the rectifier unit. The package unit includes a first package colloid body surrounded by the first annular colloid frame to cover the light-emitting chips and a second package colloid body surrounded by the second annular colloid frame to cover the current-limiting unit and the rectifier unit.