Abstract: An integrated circuit controls a power converter that includes single stage buck-boost converter and a switching full bridge that may be used to drive an HID lamp. The single stage buck-boost converter reduces the complexity and parts count of the power converter, or electronic ballast, while permitting PFC and DC bus voltage regulation under control of the integrated circuit to maintain constant power on the HID lamp. The integrated circuit simplifies the design of power converters and electronic ballasts in particular, while reducing part count, complexity and cost in conjunction with the single stage buck-boost converter and the full bridge switching circuit.

Abstract: An amplifying device comprises an electron gun emitting an electron beam, a collector spaced from the electron gun, the collector oriented to collect electrons of the electron beam emitted from the electron gun, and an interaction structure interposed between the electron gun and the collector. The interaction structure defines an electromagnetic path along which an applied electromagnetic signal interacts with the electron beam. The interaction structure further comprises a plurality of polepieces and a plurality of magnets, the polepieces each having an aligned opening to collectively provide an electron beam tunnel having an axis extending between the electron gun and the collector to define an electron beam path for the electron beam. The polepieces provide a magnetic flux path to the electron beam tunnel from the magnets. More particularly, the interaction structure further includes plural cavities defined therein interconnected to provide a coupled cavity circuit.

Abstract: The present application describes a programmable current controller for regulating an operating driving current flowing through an illumination source. The driving current is regulated according to a digital reference corresponding to a predetermined operating current for the illumination source. The digital reference can be converted into a reference electrical parameter (current or voltage). The reference electrical parameter is compared with an operating electrical parameter (current or voltage) corresponding to the operating driving current of the illumination source. Based on the comparison, a driving bias current is generated, which is used to regulate the operating driving current of the illumination source.

Abstract: An antenna mounted on a supporting system primary structure of a vehicle, in which the supporting system primary structure has an indentation. The antenna includes an EM functional core incorporated into the indentation of the supporting system primary structure, and a cover plate forming one of an upper and outer cover of the EM functional core that is structured and arranged as a conformal outside. Furthermore, boundary areas of the cover plate are connected with the supporting system primary structure. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: A first member is formed with a hole having an inner wall formed with a recess at a first circumferential position. A second member is formed with an elastic retainer which is retractably projected from an outer peripheral face of the second member and engaged with the recess when the second member is fitted into the hole. A chamfered portion is formed on an aperture edge of the hole at the first circumferential position, so as to have a width allowing the retainer to pass therethrough when the second member is fitted into the hole.

Abstract: An antenna comprises a dielectric member, an antenna pattern formed on one surface of the dielectric member, and a ground pattern formed on the other surface of the dielectric member. A part or the whole of the antenna is implanted in a dielectric layer on the side from which a laser beam does not come in of an optical recording medium symmetrically having a metal layer reflecting the laser beam and the dielectric layer, thereby to provide a radio tag antenna structure for an optical recording medium which is simple, is small-sized, and can secure necessary reading performance.

Abstract: An antenna comprises a base member (3), a ground conductor (5), a first antenna element (7) and a second antenna element (9). The base member (3) is formed in a thin plate shape and made of dielectric material. The ground conductor (5) is formed of a thin-film shaped and rectangular conductor and disposed on the base member (3). The first antenna element (7) is formed of a thin-film shaped and L-shaped conductor, is disposed on the base member (3) and has one end connected to one end (5A) of the ground conductor (5). The second antenna element (9) is formed of a thin-film shaped and rectangular conductor and is disposed on the base member (3) to be isolated from the ground conductor (5) and the first antenna element (7).

Abstract: An electrostatic fluid accelerator includes a first number of corona electrodes and a second number of accelerating electrodes spaced apart from and parallel to adjacent ones of the corona electrodes. An electrical power source is connected to supply the corona and accelerating electrodes with an operating voltage to produce a high intensity electric field in an inter-electrode space between the corona electrodes and the accelerating electrodes. The accelerating electrodes may be made of a high electrical resistivity material, each of the electrodes having mutually perpendicular length and height dimension oriented transverse to a desired fluid flow direction and a width dimension oriented parallel to the desired fluid flow direction.

Abstract: The continuity of a series-wired, lamp circuit is restored after interruption caused by failure of a lamp filament by providing a control relay that is wired in parallel with each lamp. A power resistor having a resistive load substantially the same as that of a lamp filament is arranged in series with the relay contacts, which are normally open. The failure of a lamp filament causes a high voltage to be impressed across the coil of the relay, causing it to pick up and its contacts to close, thus substituting the resistor for the lamp filament and restoring continuity to the circuit.

Abstract: An antenna coupled to a wireless communication device that is comprised of a series of conductive elements that form a conductor when placed under a force. The conductor is coupled to a wireless communication device to provide an antenna so that the wireless communication device is capable of communicating at an operating frequency defined by the length and construction of the conductor. The wireless communication device, through its communication using the conductor as an antenna, acts as an indicator of force to an interrogation reader when the wireless communication device is capable of communicating to the interrogation reader using the conductor as an antenna.

Abstract: In a plasma display device having a reduced discharge-current-induced voltage fluctuation and an expanded drive margin and being successful in preventing the display characteristics from being degraded, a Y-electrode drive circuit and an X-electrode drive circuit for supplying a drive voltage to the capacitance which represents a display cell are configured using parallel circuits in which first switching elements having a high-speed-switching performance and second switching elements having a low-saturation-voltage performance are connected in parallel, so that the second switching elements having the low-saturation-voltage performance are turned on at least during a period that discharge current flows therebetween.

Abstract: A coplanar type circularly polarize wave planar antenna is provided, which can be formed on one side of a dielectric substrate. The planar antenna comprises a dielectric substrate; an almost square radiating element formed on one main surface of the dielectric substrate, the radiating element having notched portions at two corners opposing in one diagonal direction; and a ground conductor formed on the one main surface, the ground conductor having a square opening portion at a center portion thereof and a square outer peripheral shape. The radiating element is placed inside the opening portion of the ground conductor with a gap of a predetermined width being provided with respect to the ground conductor.

Abstract: A reflectarray utilizes switching devices with non-ideal impedance characteristics to vary the impedance of reflecting elements. The antennas of the reflecting elements are configured as a function of the impedance of the non-ideal switching devices to provide optimal phase-amplitude performance. In particular, the antennas are configured such that the impedance of each antenna is proportional to the square root of the impedance of the non-ideal switching devices when in an on state and when in an off state.

Abstract: A reflector includes a conductive surface and a surface coating. The surface coating includes a binder and metal oxide grains embedded in the binder. The metal oxide grains include aluminum oxide that constitute up to 60% of the metal oxide by weight. A method of making a reflector includes forming a slurry, applying an electric field between a spray gun nozzle and the reflector, and spraying the slurry through the spray gun nozzle onto the reflector. The slurry contains metal oxide grains suspended in a binder.

Abstract: A method for guiding waves over objects, a method for improving a performance of an antenna, and a method for improving a performance of a radar are disclosed. The methods disclosed teach how an impedance structure can be used to guide waves over objects.

Abstract: A switchgear apparatus includes a switchgear device, such as a circuit breaker, having a power bus, and an antenna element including an antenna member and one or more antenna leads. A material encapsulates the antenna member and is adapted to suppress dielectric breakdown through the material to the encapsulated antenna member from the power bus. The circuit breaker also includes a conductive housing having an opening receiving the antenna leads. The conductive housing is mounted on or proximate to the power bus. A sensor circuit is disposed in the conductive housing and is adapted to output a radio frequency signal to the antenna leads or to input a radio frequency signal from the antenna leads.

Abstract: A burglar-proof wireless light adjusting module is provided wherein a transmission socket of a control module is connected with a lamp and a local power, respectively, whereas a control socket at the other end is connected with a conventional switch. When the switch is turned on or off, a micro processor transmits a signal of lightening status of a corresponding light bulb to a driving circuit, generates a corresponding control circuit through the driving circuit, to enable the light bulb to generate a continuously changing status of lightening and extinguishing, a status of lightening and extinguishing according to a random time, and a constant brightness, after receiving a status of open circuit and short-circuit, corresponding to various times of status of turning on and off, from the control socket.

Abstract: A feed antenna includes a pair of conductive members, a dielectric waveguide placed therebetween, a dielectric member that is placed between the conductive members and located close to the dielectric waveguide, and a plurality of dielectric binding sections for binding the dielectric waveguide to the dielectric member. One of the conductive members has a plurality of openings.

Abstract: An antenna array includes an upper conductive plate structure comprising a lattice array of holes to form a radiating aperture. A lower conductive plate structure is disposed in a spaced relationship relative to the upper plate structure. The lower plate structure has an upper surface whose spacing from a lower surface of the upper plate varies in a first direction parallel to the lower surface. The array includes relative rotation apparatus for imparting relative rotational movement between the upper plate structure and the lower plate structure.

Abstract: On the top surface of conductive ground plate, first holder having first antenna element, second holder having second antenna element, and support having parasitic antenna element are provided such that holders and support confront each other. Respective intermediate sections of antenna elements are folded to shape like “square C” in plural times, so that antenna is formed. The foregoing construction allows low-profiling and downsizing antennas to be used in mobile radio devices.