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251results about How to "Radiation suppression" patented technology

Manufacturing method of active matrix substrate, active matrix substrate and liquid crystal display device

A method of manufacturing an active matrix substrate is provided that uses a technique of transferring a thin film device. In forming thin film transistors and pixel electrodes on an original substrate before transfer, an insulator film such as an interlayer insulation film or the like, is previously removed before the pixel electrodes are formed. Further, the original substrate is separated by exfoliation to transfer the device to a transfer material to cause the pixel electrodes to partially appear in the surface or the vicinity of the surface of the device. This portion permits application of a voltage to a liquid crystal through the pixel electrode.
Owner:SAMSUNG ELECTRONICS CO LTD

Characterizing Stretched Polynucleotides in a Synthetic Nanopassage

Methods of trapping a deformed portion of a double-stranded polynucleotide in a membrane nanopassage are provided. In an aspect, the membrane has a nanopassage that defines a confine region, wherein the membrane separates a first fluid compartment from a second fluid compartment, and the nanopassage is in fluid communication with the first and second compartments. A polynucleotide is provided to the first fluid compartment and optionally a threshold voltage for the membrane and the polynucleotide is determined. A driving voltage across the membrane that is greater than the threshold voltage is applied to force a portion of the polynucleotide sequence into the nanopassage confine region, and decreased to a holding voltage bias to trap the polynucleotide portion in the nanopassage confine region. In particular, at least one nucleotide base-pair is fixably positioned in the nanopassage confine volume. In further embodiments, any of the trapping methods are used to characterize or sequence double stranded DNA.
Owner:THE BOARD OF TRUSTEES OF THE UNIV OF ILLINOIS +1

Low-EMI electronic apparatus, low-EMI circuit board, and method of manufacturing the low-EMI circuit board

A low-EMI circuit which realizes a high mounting density by converting the potential fluctuation of a power supply layer with respect to a ground layer which occurs on switching an IC device etc., into Joule's heat in the substrate without using any parts as a countermeasure against the EMI. Its structure, a circuit board using it, and a method of manufacturing the circuit board are also disclosed. Parallel plate lines in which the Q-value of the stray capacitance between solid layers viewed from the power supply layer and ground layer is equivalently reduced and which are matchedly terminated by forming a structure in which a resistor (resistor layer) and another ground layer are provided in addition to the power supply layer and the ground layer on a multilayered circuit board. A closed shield structure is also disclosed. This invention can remarkably suppress unwanted radiation by absorbing the potential fluctuation (resonance) which occurs in a power supply loop by equivalently reducing the Q-value of the stray capacitance, absorbing the standing wave by the parallel plate lines matchedly terminated and, closing and shielding the parallel plate lines.
Owner:SUMITOMO RUBBER IND LTD

Dielectric waveguide filter with cross-coupling

InactiveUS20070120628A1Suppress radiation lossSuppress broadband spuriousResonatorsWaveguidesThird waveCoupling
Provided is a dielectric waveguide filter. The filter includes: a multi-layered structure of dielectric substrates having first and second ground planes at its top and bottom; first, second, and third waveguide resonators disposed at multiple layers within the multi-layered structure; converters for signal transition between input / output ports and the first and third waveguide resonators; first vias for forming the first, second, and third waveguide resonators; and second vias disposed at a boundary surface of the first waveguide resonator and the third waveguide resonator.
Owner:ELECTRONICS & TELECOMM RES INST

Electronic device, information processor, and electromagnetic radiation suppressing member

An electronic device (1) has an information processor (3) including a circuit board (31) and an integrated circuit element (32). The integrated circuit element is mounted on the circuit board for controlling input and output of information. Further, the circuit board is provided with a cover member (33A) having thermal conductivity and electrical conductivity and covering the integrated circuit element. The cover member, which is electrically connected to ground patterns (G) formed on the circuit board, includes an electromagnetic radiation suppressor (5) for suppressing radiation of electromagnetic waves generated from the integrated circuit element.
Owner:SONY COMPUTER ENTERTAINMENT INC

Chemical reaction apparatus and power supply system

A chemical reaction apparatus includes a solid body which has an outer surface, and in which at least one flow path which allows a chemical medium to flow is formed. This body has a heating element which heats the chemical medium in the flow path to accelerate a chemical reaction of the chemical medium, and a heat radiation preventing film which covers at least a portion of the outer surface of the body, and prevents radiation of heat generated by the heating element from a portion of the outer surface.
Owner:CASIO COMPUTER CO LTD

Optical modulator

ActiveUS20050175271A1Radiation loss is suppressed moreImprove verticalityCoupling light guidesNon-linear opticsLength waveWaveguide
An object of the invention is to provide a Mach-Zehnder type optical modulator that can reduce wavelength chirp occurring in a modulated light, and also can reduce an optical loss with a small sized configuration. To this end, according to the present Mach-Zehnder type optical modulator, in a configuration where optical waveguides and a coplanar electrode are formed on a substrate having an electro-optical effect, a polarization inversed region is formed in a part of an interaction portion of the substrate, and a signal electrode is arranged above one of parallel waveguides in a polarization inversed region and is arranged above the other parallel waveguide in a non-inversed region. Furthermore, a surface area of the substrate positioned on both sides of each of the parallel waveguides is lowered to provide a ridge structure section, and a buffer layer is formed on a ridge side face thereof.
Owner:FUJITSU LTD

Printed wiring board

A printed wiring board is provided which can be applied even to circuit boards operating at high speed, and which can suppress electromagnetic wave radiation, and which can suppress a deterioration in density of mounting. At the printed wiring board, a first signal wire layer, a first ground layer having a first power source wire, a second ground layer having a second power source wire, and a second signal wire layer, are laminated. The first ground layer and the second ground layer are interlayer connected by many via holes. Return current, of signal current flowing through a signal wire, flows in the first ground layer, and a path of the return current is cut midway therealong at a position of the first power source wire. However, the return current is detoured by the via hole to the second ground layer, and flows thereat.
Owner:FUJIFILM BUSINESS INNOVATION CORP

Drive circuit, display device, and driving method

InactiveUS6995516B2Drive precisionPrevent deterioration of gray-scale characteristicCathode-ray tube indicatorsDisplay deviceEngineering
A drive waveform signal which is level controlled by discontinuous levels including a minimum level corresponding to luminance brightness gradation data which is not 0, at least one non-minimum level corresponding to larger luminance brightness gradation data, and an intermediate level between the minimum and non-minimum level. The signal, which is employed to drive an image display unit, is given pulse width control with discontinuous pulse width, and has a portion, controlled with the minimum level, in its trailing edge, and a portion, controlled with the intermediate level just before the former portion, when it has the portion controlled by the non-minimum level.
Owner:CANON KK

Wireless communication system for multi-carrier transmission, transmitter, transmission method, receiver, and reception method

InactiveUS20050036563A1Avoid Intersymbol InterferencePreferable multi-carrier transmissionSecret communicationMulti-frequency code systemsCommunications systemGuard interval
The present invention aims at configuring a guard interval period so as to control out-of-band radiation and decrease a transmission power loss. A transmitter provides a repetition signal for a very short time period at both ends of an effective symbol and copies the repetition signal to opposite sides of the effective symbol. The transmitter then inserts a null signal corresponding to a guard interval time to remove intersymbol interference. Further, a transmission signal is multiplied by a window function for waveform shaping. A window function value is configured so as to always keep constant the sum of the window function value and itself shifted by an effective symbol length. This prevents the transmission symbol's energy from exceeding the energy for the effective symbol length before multiplication of the window function.
Owner:SONY CORP

Receptacle cage, receptacle assembly, and transceiver module assembly

In a receptacle cage, a front EMI finger in a tubular shape serving as a first shield member is provided on the entire periphery of a substantially rectangular module slot. In addition, a gap between the peripheral edge of a slot of a cover, into which a plug connector for the optical module connected to a receptacle connector in a receptacle connector accommodating portion is inserted, and a peripheral surface of a plug connector and a gap between a lower surface of the cover and a surface, on which a printed wiring board is mounted, are shielded by an EMI gasket serving as a second shield member and an EMI gasket serving as a third shield member, respectively.
Owner:YAMAICHI ELECTRONICS

Electromagnetic shielding sheet

An electromagnetic shielding sheet of the present invention includes a transparent base sheet and a metal layer attached to one surface of the transparent base sheet. The metal layer has a mesh part, a peripheral mesh part surrounding the mesh part, and a grounding frame surrounding the peripheral mesh part. A width of lines forming meshes in the peripheral mesh part gradually increases from the mesh part toward the grounding frame. The lines of the electromagnetic shielding sheet are scarcely bent or broken in all processes including fabricating and assembling processes, and the electromagnetic shielding sheet is excellent in handling ease.
Owner:DAI NIPPON PRINTING CO LTD

Semiconductor light emitting device and method of manufacturing the same

A semiconductor light emitting device can include a casing having a concave-shaped cavity with an opening, a semiconductor light emitting element installed in a bottom portion of the cavity, and a resin layer for filling an interior of the cavity. The resin layer can include a wavelength conversion material, and can be formed in a convex shape in a light radiation direction of the light emitting element. In the resin layer a layer with a high density of the wavelength conversion material can be formed near a surface of the convex shape
Owner:STANLEY ELECTRIC CO LTD

Infrared suppressor apparatus and method

A method for suppressing infrared radiation from an engine of an aircraft operating in an environment includes directing hot exhaust from the aircraft engine into a lobed mixer of a single baffle infrared suppressor having a collapsible, translatable baffle to generate alternating flows of hot exhaust gas and cold air. The method further includes directing the alternating flows of hot exhaust gas and cold air towards the single baffle assembly to mix the hot exhaust gas with the cold air.
Owner:GENERAL ELECTRIC CO

Printed wiring board including power supply layer and ground layer

A first power supply layer spreads over an insulating layer outside an island of a second power supply layer. A first ground layer spreads over an insulating layer outside an island of a second ground layer. First and second electrically-conductive pieces are interposed between the first and second power supply layers as well as between the first and second ground layers. A capacitor is interposed between the first and second electrically-conductive pieces. Power supply noise is forced to inevitably pass through the electrically-conductive pieces. The power supply noise thus reliably flows into the capacitor through the first and second electrically-conductive pieces. A printed wiring board is in this manner allowed to enjoy a sufficient suppression of the power supply noise.
Owner:FUJITSU LTD

Semiconductor device with bypass capacitor

A semiconductor device comprises a semiconductor substrate having first and second active regions of first conductivity type, first and second insulated electrodes crossing the first and second active regions, respectively, a third insulated electrode formed on the second insulated electrode, source / drain regions formed on both sides of the first electrode, pseudo source / drain regions formed on both sides of the second electrode, first and second power source lines formed above the second active region through an interlevel insulating layer, a first interconnection connecting the third electrode and the pseudo source / drain regions to the first power source line, and a second interconnection connecting the second electrode to the second power source line, wherein the first active region constitutes a MOS transistor and the second active region constitutes a bypass capacitor and induces an inversion layer of the second conductivity type under the second electrode structure when the power source lines are activated.
Owner:YAMAHA CORP

Antenna device and radio communication device

The present invention relates to an antenna device disposed in a case and prevents antenna characteristics from being degraded by a human body. The antenna device is configured such that it comprises an antenna that is disposed in a first case unit, a passive element that is disposed in a second case unit coupled to the first case unit and that can obtain an antenna function due to capacitive coupling with the antenna, and a conductor (printed board) that is disposed in the second case unit to suppress radiations from the passive element to one side of the second case unit.
Owner:FUJITSU CONNECTED TECH LTD
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