Abstract: A drive transistor is connected, via its drain region, to a power supply line, and, via its source region, to a transparent electrode of an organic EL element. The channel region is formed bent into a substantially L shape. This arrangement is able to simplify the arrangement of a gate electrode by providing the gate electrode so as to run straight over a channel region in parallel to the power source line. Accordingly, the aperture ratio is increased.

Abstract: According to an embodiment of the present invention, a conformal channel monopole array antenna includes a base plate having a continuous electrically conducting channel formed therein, and a substrate coupled to the base plate. The substrate has a plurality of radiating elements formed on a first surface thereof. Each radiating element includes a radiating portion, a feed line, and a resistive end load. The feed lines are configured to couple to respective ones of a plurality of transmission elements.

Abstract: A candle with a decorative light element is provided. A light emitting device is disposed within the main body of the candle, and a sensor connected to the light emitting device detects the presence of a flame on the wick. When a flame is detected by the sensor, the light emitting device is activated. The portion of the candle from which the wick projects is preferably substantially opaque, and the portion of the candle in which the light emitting device is disposed is preferably at least partially light transmissible or translucent, so that the glow of the flame does not interfere with the glow of the light emitting device within the candle.

Abstract: An image display device which has a display element that optically modulates an incident light for displaying an image. A lamp is a light source of the incident light to the display element. A lamp driver drives the lamp. A lamp power level calculator calculates a driving power level of the lamp corresponding to a level of an input video signal. A lamp temperature controller controls a lamp temperature depending on changes in the input signal from the lamp power level calculator so as to change the lamp temperature within a predetermined range in response to fluctuations of the input video signal. This image display device can further include a projection lens for projecting and displaying images formed in the display element on a screen.

Abstract: An antenna system that for use in both high density areas and rural areas while still obtaining acceptable reception in both locations. The antenna system includes a switching mechanism that permits the user to select between a lower gain range, appropriate for high density areas, and a higher gain range, which is more conducive to rural areas where UHF and VHF signals tend to be the weakest. This system provides the user with greater utility and performance and broader compatibility with television markets of varying sizes.

Abstract: The present invention relates to a discharge lamp lighting apparatus which can prevent an increase of loss and a rise of temperature in the area where discharge lamp tube voltage is low. The power conversion circuit 1 converts the input power Pin to output the DC power Pd. The discharge lamp driving circuit 5 converts the DC power Pd supplied from the power conversion circuit 1 to output AC voltage Vo and AC current Io. The controller 2 provides constant power control for maintaining the AC power Po provided by the AC voltage Vo and AC current Io to be constant when the AC voltage Vo is higher than the predetermined value V1, and provides power reduction control for reducing AC power Po to the power conversion circuit 1 when the AC voltage Vo is lower than the predetermined value V1.

Abstract: An HID ballast includes a flyback power converter with a simplified topology that permits power factor correction while supplying constant output power to drive an inverter supplying low frequency modulated power to the HID lamp. A switch is coupled in series with a transformer in the power converter to control current through the transformer to provide constant output power. The off time of the switch contributes to controlling the power factor of the ballast circuit. The transformer is operated in critical conduction mode, with an indication of zero current in the transformer used to determine the control for the switch. An output of the flyback power converter provides a feedback signal to obtain constant power output based on switching intervals applied to the switch coupled to the transformer. This simplified topology reduces part counts while providing a robust control that can be flexibly applied to a number of HID lamps.

Abstract: An antenna structure for an inductively coupled plasma generator suitable for processing large-diameter wafers or large, flat-panel display devices by making a plasma density distribution uniform and symmetrical with respect to a rotating direction inside a circular or rectangular chamber in which a wafer is processed. In the antenna structure having a powered end to which RF power is applied and a ground end connected to the ground, at least two loop antenna elements are disposed electrically in parallel with each other, the powered ends and ground ends of the respective antennas are disposed symmetrically with respect to the center of the antennas, and the antennas crossing each other such that the powered ends and ground ends thereof are disposed at a part far from a chamber and central parts thereof are disposed at a part close to the chamber.

Abstract: A modularized inverter control circuit makes use of a push-pull type control IC to connect other accessory circuit units, and is packaged and disposed on a printed circuit board to accomplish modularization for driving and control of various inverter circuits. The modularized inverter control circuit comprises a control IC for output of control signals, a lamp current feedback unit connected to the control IC and several lamps for getting working currents of the lamps, a turn-on voltage limit unit connected to the control IC and the lamps for getting working voltages of the lamps, a lamp protection unit connected to the control IC and the lamps and used for open-circuit and short-circuit protection of the lamps, a power source control unit connected to the control IC for providing an electric power, and a reference unit connected to the control IC for providing required reference values for the control IC.

Abstract: An antenna mounting system including a base plate having a mounting surface, a substantantially circular opening through the mounting surface, and attachment means for attaching the base plate to a mounting surface. The housing and the base plate are each dimensioned such that the housing is substantially rotatable within the base plate when the base plate is loosely attached to the mounting surface and such that the housing is substantially fixed when the base plate is tightly attached to the mounting surface. A rotator portion of a rotatable connector is disposed within the housing and is rotatably and controllably attached thereto. A connector portion extends through a slot in the housing and includes a cable connector and a sealing surface dimensioned to mate with an antenna.

Abstract: An indoor UHF antenna for a digital television includes a flat structure, which is easy to install and also can be adjusted to different receiving angles according to horizontal polarized waves or vertical polarized waves transmitted by different transmitters. The antenna device includes a circuit board, a main rod antenna, and an auxiliary rod antenna. The main rod antenna is horizontally welded with a signal feeder terminal of the circuit board, and the auxiliary rod antenna is parallel welded with an earth terminal of the circuit board for stabilizing signals. Thereby the whole antenna structure is flat and can be adjusted to any receiving angle easily, so as to match up and be suitable to receive wireless digital television signals of the horizontal polarized waves or vertical polarized waves from different transmitters.

Abstract: A circuit for operating a high intensity discharge (HID) lamp includes an H-bridge connected between a common terminal and a power line, and a control circuit connected to the H-bridge. A boost circuit is connected in parallel with the H-bridge between the power line and the common terminal, where the boost circuit includes a resistor, a Zener diode and a capacitor connected in series.

Abstract: An antenna includes a substrate having a pair of oppositely directed surfaces. A source plane conductor is located on one of the surfaces and has a signal line connected thereto. A ground plane conductor is located on another of the surfaces. Each of the conductors has a slot extending therethrough with the slots sized and positioned relative to one another to inhibit the intensity of radiation emanating from the ground plane.

Abstract: A ramp voltage generating apparatus according to the present invention includes a ramp voltage generating circuit for generating a plurality of ramp voltages out of phase with each other from one ramp voltage, and a control circuit. The ramp voltage generating circuit includes a plurality of voltage generating circuit portions connected in parallel to a voltage input terminal. Each voltage generating circuit portion includes a voltage output terminal, a capacitor, an operational amplifier, a first switch, a second switch and a third switch. The control circuit turns on the third switches while shifting the time point of switching each of the third switches from off to on state, and the control circuit turns off the first switches and, also, turns on the second switches during the period including the fall time point of the ramp voltage input to the voltage input terminal.

Abstract: A power supply apparatus for a traveling-wave tube disclosed herein eliminates the need for isolation through a vacuum relay or the like, and is therefore fabricated in small size and at low cost. An oscillator circuit generates an oscillating signal at a frequency optionally selected from a plurality of frequencies. An inverter is applied with the oscillating signal from the oscillator circuit to generate an AC voltage signal at the frequency of the oscillating signal. A transformer transforms the AC voltage signal generated by the inverter disposed on the primary side and supplies the resulting signal to the secondary side. A rectifier circuit, which is disposed on the secondary side, rectifies the AC voltage signal transformed by the transformer for application to the traveling-wave tube. A frequency detector circuit detects the frequency of the AC voltage signal applied from the transformer to the rectifier circuit to generate a device control signal in accordance with the frequency.

Abstract: The invention addresses a multi-channel induction accelerator with external channels, which in its broadest form includes an injector block, a drive system, a block of output systems, and a multi-channel induction accelerative block. The multi-channel induction accelerative block is formed of an aggregate of linear induction acceleration blocks (including those that are placed parallel one with respect to the other), each acceleration block being formed from a sequence of linearly connected acceleration sections. Each acceleration section comprises one or more magnetic inductors enveloped by a conductive screening. One or more inner accelerative channels are placed axially within the inner parts of the conductive screening and have one or more azimuthally oriented slits. One or more channel electrodes are connected electrically with different parts of the inner parts of the conductive screening that are separated by the slit.