Abstract: In this PDP apparatus, in a sustain driving circuit device for supplying sustain discharge pulses, an energy recovery circuit has a coil, switches, and diodes, and a Vs clamp circuit has switches. In the energy recovery circuit, the switches are connected to a panel capacitor, and the coil is connected to a power source line with an intermediate potential of Vs, and a clamp diode and a power source connected thereto are connected to a node between the coil and the switch. As a control timing, at a timing of less than ?/2 of an LC resonance current cycle, the switch of the energy recovery circuit is turned OFF and then the switch of the Vs clamp circuit is turned ON, thereby performing the Vs clamp.

Abstract: A novel PDP device capable of reducing the peak current of a sustain discharge without the need to modify circuits has been disclosed.

Abstract: A formation logging tool having a substantially continuous central mandrel with regularly spaced mass blocks disposed thereon, at least some of the mass blocks carrying sensors such as receivers. By adopting this structure, the tool can be made to behave as a mass-spring structure and its flexural and extensional behaviour controlled such that its dispersion curve does not extend into the dispersion curve of the formation to be logged. The structure can be applied to the whole of the logging tool or just to the receiver section and/or any spacer section between the receiver and the transmitter section.

Abstract: An optical filter is provided on the output side of light from plural kinds of cells that output light with colors different from one another. In the optical filter, the penetrable rate of at least a portion of the wavelength band of light output from the cell with the color having highest luminescent intensity is set lower than that of the wavelength band of other kinds of cells. Consequently, the reflectance rate of outer light incident to a display can be reduced. Particularly, in a room environment using artificial lighting, the reflectance rate of outer light can be reduced in the wavelength band of light with relatively high luminescent intensity. Resultingly, bright room contrast can be improved by suppressing the reflection of outer light. Since the penetrable rate of the color with the highest luminescent intensity is reduced, reduction in brightness of the display can be kept to a minimum.

Abstract: An order-ensemble searching unit classifies a distribution of reception signals at each bit position of a modulation symbol, and searches an order ensemble of a parity check matrix that minimizes an SNR threshold value. A code generating unit generates a parity check matrix and a generation matrix, based on the order ensemble obtained as a search result.

Abstract: A magnification correction device 1 includes magnification correction optics 2, a pressure adjustment device 3 and a controller 4. The magnification correction optics 2 is formed in a shape of a box with a glass plate 20 and a bottom plate 11 positioned parallel to the glass plate 20 and a frame 10. The inside of the box is an air room 24 connected to a pressure adjustment device 3 via a connecting pipe 12 so that the pressure of the inside can be changed. The cylinder 30 is driven by a motor 35 via a linear movement unit 36 such as a ball screw and the motor 35 is controlled by a controller 4. The moving distance of cylinder 30, which is equal to the moving distance of the piston, is decided by the number of the revolutions of the motor 35, and the capacity of the closed circuit of the pressure adjustment device 3 is also decided.

Abstract: A flat panel display device includes switching elements QA3 and QA4, respectively connected to a voltage Vs and ground to be applied to a panel capacitance Cp when performing light emission relating to image display, for clamping the voltage of the panel capacitance; coils LA1 and LA2 each having one end connected to the panel capacitance; a path separation circuit DLA1 and DLA2, connected to the other ends of the coils, for separating paths through which charge/discharge currents flow; a switching element QA1 connected between the voltage Vs and the path separation circuit; a switching element QA2 connected between the ground and the path separation circuit; and diodes connected in parallel to the switching elements, in which the resonance reference voltage relating to a power recovery operation is set to a maximum voltage and a minimum voltage to be applied to the panel capacitance, and the paths through which the charge/discharge currents flow are separated to thereby improve the recovery efficiency in a p

Abstract: An apparatus for performing real-time analysis of a subterranean formation fluid includes a light source configured to transmit at least a sample signal through a sample of the subterranean formation fluid and a reference signal, at least one photodetector configured to continuously detect the sample and reference signals, and an electronics assembly configured to compensate for drift in the detected sample signal in real-time based on the value of the detected reference signal.

Abstract: A plasma display device capable of stably generating a discharge between an address electrode and a scan electrode without being influence by temperature in an address period is provided. The plasma display device having a temperature detecting part that detects temperature, a scan electrode to which a scan pulse for selection is applied in the address period, an address electrode to which an address pulse is applied corresponding to the scan pulse to select emission or non-emission of a display cell, and a scan electrode drive circuit which supplies a voltage to the scan electrode in accordance with the detected temperature is provided. The scan electrode dive circuit changes a voltage of the scan electrode at a time of not applying the scan pulse in the address period in accordance with the detected temperature without changing an amplitude of the scan pulse.

Abstract: A plasma display panel in which firing voltages between any of electrodes are low can be realized. A plasma display panel has a first substrate and a second substrate. The first substrate has a group of laterally extending first electrodes for performing sustain discharge and a group of laterally extending second electrodes which can be independently driven, a group of third electrodes positioned between the first and second electrodes, a dielectric layer covering-them, a group of fourth electrodes extending vertically and provided on the dielectric layer, and a protective layer. The second substrate has barrier ribs provided in parallel to the fourth electrodes so as to divide at least the first to third electrodes in the extending directions, and phosphors for emitting light when excited by an ultraviolet ray.

Abstract: A plasma display device includes a first electrode from which sustain discharge occurs; a second electrode from which sustain discharge occur to the first electrode, a distance from the second electrode to the first electrode continuously varying in one discharge space; and a driving circuit which generates a sustain discharge pulse that rises in two stages, with an application time of a second-stage voltage being longer than an application time of a first-stage voltage, to apply the sustain discharge pulse between the first and second electrodes, thereby causing the sustain discharge.

Abstract: The present invention provides a plasma display device including: a plurality of scan electrodes sequentially scanned to be impressed with a scan pulse; an address electrode that is impressed with an address pulse corresponding to the scan pulse, for selection of a display pixel; a scan driving circuit generating the scan pulse; and an address driving circuit generating the address pulse. The address pulse rises in n stages (n is an integer equal to or larger than 2), and a period in a period during which the address pulse rises from a lowest voltage to a highest voltage overlaps a scan pulse immediately prior to the scan pulse corresponding to the address pulse.

Abstract: A problem is to be solved in that there is to be provided a display device and a display method allowing two or more sorts of sustaining pulses to be employed by switching over the pulses depending on the state of display in such a manner as to achieve characteristics including high light emission efficiency/decrease in streaking and high luminance and the like. The display device is provided wherein one frame image contains a plurality of sub-frames, including: a detection section detecting a state of display: a sustaining pulse output section to select and output one out of two or more sorts of sustaining pulses for a display for each sub-frame depending on the state of display.

Abstract: The present invention provides a display device including: a plurality of X electrodes and a plurality of Y electrodes, with capacitances of display cells being formed therebetween; a first X-electrode current path through which an electric current flows to/from the odd-numbered X electrodes; a second X-electrode current path through which an electric current flows from/to the even-numbered X electrodes synchronously with and in a reverse direction to the flow of the electric current to/from the odd-numbered X electrodes through the first X-electrode current path; a first Y-electrode current path through which an electric current flows to/from the odd-numbered Y electrodes; and a second Y-electrode current path through which an electric current flows from/to the even-numbered Y electrodes in synchronization with and in a reverse direction to the flow of the electric current to/from the odd-numbered Y electrodes through the first Y-electrode current path.

Abstract: A sliding nozzle unit in which a face pressure load is released by inserting a cotter into a press member provided in an open close metal frame and sliding the cotter on an inclination block provided on the side face of a sliding metal frame thereby flexing a resilient body through the press member. The inclination block is spaced apart from the nozzle hole of a sliding plate on the longitudinal side face of the sliding metal frame. Inclining face of the inclination block is formed to become lower toward the direction for fully closing the nozzle hole and a stop member is provided on the longitudinal side face of the sliding metal frame, in the vicinity of nozzle hole of the sliding plate, so that the nozzle hole is not fully opened under a state where the cotter is inserted into the press member.

Abstract: A magnification correction device 1 includes a magnification correction optics 2, a pressure adjustment device 3 and a controller 4. The magnification correction optics 2 is formed in a shape of a box with a glass plate 20 and a bottom plate 11 positioned parallel to the glass plate 20 and a frame 10. The inside of the box is an air room 24 connected to a pressure adjustment device 3 via a connecting pipe 12 so that the pressure of the inside can be changed. The cylinder 30 is driven by a motor 35 via a linear movement unit 36 such as a ball screw and the motor 35 is controlled by a controller 4. The moving distance of cylinder 30, which is equal to the moving distance of the piston, is decided by the number of the revolutions of the motor 35, and the capacity of the closed circuit of the pressure adjustment device 3 is also decided. The number of the revolutions of the motor 35 can be control by the electric signal from the controller 4.

Abstract: A sliding nozzle unit in which a face pressure load is released by inserting a cotter into a press member provided in an open close metal frame and sliding the cotter on an inclination block provided on the side face of a sliding metal frame thereby flexing a resilient body through the press member. The inclination block is spaced apart from the nozzle hole of a sliding plate on the longitudinal side face of the sliding metal frame. Inclining face of the inclination block is formed to become lower toward the direction for fully closing the nozzle hole and a stop member is provided on the longitudinal side face of the sliding metal frame, in the vicinity of nozzle hole of the sliding plate, so that the nozzle hole is not fully opened under a state where the cotter is inserted into the press member.

Abstract: In a display panel, the luminance and contrast are improved by making a partition semitransparent, which is a constituent element adjacent to a light-emitting section. A visible light incident on the partition proceeds inside the partition while being attenuated at a constant rate. When an external light incident on the partition from the front side is reflected off the bottom surface of the partition and returns to the front side again, the external light reciprocates inside the partition. Since the external light is largely attenuated by the reciprocation, the partition seemingly functions as an optical absorber with respect to the external light. A light emitted by the light-emitting section can transmit through the partition and radiate to the outside from the front side.

Abstract: A method for driving an AC type PDP is provided in which a display discharge is generated by a low voltage so that the power consumption can be reduced, and the light emission efficiency can be improved. A voltage pulse train Vi having alternating polarity is applied between the display electrodes so that the display discharge is generated at a time interval below 2 &mgr; sec which space charge causes an active priming effect and that the polarity of the wall voltage between the display electrodes switches for every display discharge.

Abstract: A plasma display panel has a first substrate, a plurality of address electrodes disposed on the first substrate, a first dielectric layer disposed on the first substrate in covering relation to the address electrodes, a second substrate, a plurality of scan electrodes disposed on the second substrate in a direction transverse to the address electrodes, a second dielectric layer disposed on the second substrate in covering relation to the scan electrodes. The first substrate and the second substrate are disposed in confronting relation to each other with discharge spaces defined therebetween. The first dielectric layer contains electrically conductive particles mixed therewith. The electrically conductive particles make the first dielectric layer electrically conductive in its transverse direction to allow charges stored on the first dielectric layer to leak to the address electrodes for thereby reducing the frequency of random discharges.