51results about How to "Reduce electromagnetic influence" patented technology

A mobile terminal comprises: a terminal body having an upper part and a lower part; and an antenna device disposed on the upper part or the lower part of the terminal body, and configured to transmit and receive radio signals, wherein the antenna device comprises: a first member and a second member which form a slot of which one side is open; a feeding portion having one end connected to one of the first member and the second member such that the antenna device resonates in a first frequency band, and forming an electric field in the slot; and a feeding extension portion extending from the feeding portion such that the antenna device resonates in a second frequency band.

An object of the present invention is to decrease the influence of an electromagnetic wave emitted from one semiconductor chip on other semiconductor chips in the same package, amounted substrate, adjacent devices, and the package. The present invention provides an adhesive film for a semiconductor device having an adhesive layer and an electromagnetic wave shielding layer, in which the attenuation of the electromagnetic wave that penetrates the adhesive film for a semiconductor device is 3 dB or more in at least a portion of the frequency range of 50 MHz to 20 GHz.

A radiation detection apparatus includes a scintillator configured to convert incident radiation into visible light, a photoelectric conversion unit and an electrically conductive member. The photoelectric conversion unit includes a two-dimensional array of pixels arranged on a substrate. Each pixel is configured to convert the visible light into an electric signal. The electrically conductive member is supplied with a fixed potential. The electrically conductive member, the substrate, the photoelectric conversion unit, and the scintillator are disposed in this order from the radiation-incident side of the radiation detection apparatus to the opposite side.

The present invention provides a carbon nanofiber-metal composite, which is formed by continuously coating a carbon nanofiber including a plurality of laminated truncated, conic graphenes with a metal. The carbon nanofiber-metal composite according to the present invention can have improved magnetic permeability and conductivity, and thus can be useful as an electromagnetic shielding material.

The invention provides a semiconductor device which has a capacitor element therein to achieve size reduction of the device, the capacitor element having larger capacitance than conventional. A semiconductor integrated circuit and pad electrodes are formed on the front surface of a semiconductor substrate. A second insulation film is formed on the side and back surfaces of the semiconductor substrate, and a capacitor electrode is formed between the back surface of the semiconductor substrate and the second insulation film, contacting the back surface of the semiconductor substrate. The second insulation film is covered by wiring layers electrically connected to the pad electrodes, and the wiring layers and the capacitor electrode overlap with the second insulation film being interposed therebetween. Thus, the capacitor electrode, the second insulation film and the wiring layers form capacitors.

The invention belongs to the technical field of welding equipment, relates to a welding torch compounding plasma arcs with MIG arcs, and discloses a plasma arc and MIG arc distance adjustable intelligent composite welding torch. The composite welding torch comprises a plasma generator, a pulse MIG welding gun, a welding gun support, a welding gun bearer, a protective gas hood, a tooth bar, a tooth bar supporting frame, a connection board, a stepping motor, a control system and a current signal gatherer, wherein the welding gun support is provided with a clamp, the plasma generator is fixed on the welding gun support through the clamp, the tooth bar supporting frame is fixed on the welding gun support, the pulse MIG welding gun is connected with the tooth bar through the connecting board, the stepping motor is provided with a gear driving the tooth bar, the plasma generator and the lower end of the MIG welding gun pass through the welding gun bearer, the welding gun bearer and the welding gun support are fixed through a support rib plate, the protective gas hood is connected with the lower portion of the welding gun bearer, and the protective gas hood is provided with a protective gas interface, the current signal gatherer is connected with the control system, and the control system is connected with the stepping motor. The composite welding torch provided by the invention can realize stable, high-efficiency and high-quality composite welding.

The invention provides a vapour condensation test method and a device by using a rotary stage to simulate the state of air movement load, belonging to the technical field of two-phase flow test. The movement load is obtained by stimulation of a ground rotary stage, and air dynamic load with different magnitudes can be obtained by regulating the rotary speed of the stage. The method mainly comprises the following four parts: a rotary table, a steam circuit, a coolant circuit, and experiment test and data acquisition storage equipment. The method and the device can simulate and research vapour condensation on air movement load in ground condition.

A display arrangement comprises a display, a conductive shield arranged at the display, a ferrite layer and a conducting line of an antenna. The ferrite layer is arranged between the conducting line and the conductive shield.

The invention relates to a switch magnetic flow arc-shaped permanent magnet motor, and belongs to the technical field of linear motors. The switch magnetic flow arc-shaped permanent magnet motor comprises a stator and a rotor. The rotor is of a 180-degree circular arc structure formed by overlaying silicon steel sheets; multiple salient poles which are in an identical shape are evenly distributed on the rotor along the circumference. The stator is of a circular arc structure of a certain particular central angle; the stator is composed of thirteen complete U-shaped silicon steel sheet iron cores and twelve permanent magnets which are sequentially and closely arranged at intervals. The central angle of the rotor is larger than the central angle of the stator, and the difference value of the central angle of the rotor and the central angle of the stator is the scanned area of the switch magnetic flow arc-shaped permanent magnet synchronous motor; an air gap is formed between the stator and the rotor; armature windings are placed in the U-shaped iron cores, and the windings are three-phase or multi-phase. The switch magnetic flow arc-shaped permanent magnet motor can directly drive a load which needs to move back and forth within the limited angle, leaves out an indirect driving middle complicated mechanical conversion device, and enables the whole system to be simpler in structure, higher in positioning accuracy and faster in response.

A magneto-optical disk which reproduces information with an optical pickup head which uses an electromagnetic force as the driving force is provided. Other areas than at least the recording track are magnetized uniformly in a direction of canceling the influence of external magnetic field applied by the optical pickup head or a recording pattern having a frequency higher than modulation transfer function (MTF) of the optical pickup head is recorded to the other areas than at least the recording track. Read signals SP12 and SP14 from the magneto-optical disk are low in bit error rate.

The present invention discloses a gate driver which employs gate pulse modulation technology for improving an image quality, a driving method thereof, and a control circuit of a flat panel display device employing the gate driver. The gate driver is configured to modulate a gate pulse therein, and output the modulated gate pulse.

An image forming apparatus includes an image forming portion, a casing, an image reading portion, a first controller substrate provided on one of side surfaces of the casing, a second controller substrate provided on the side surface, wherein a component mounting surface of the second controller substrate is in a non-overlapping position with a component mounting surface of the first controller substrate, an electric wire configured to connect the first controller portion and the image reading portion, and a shielding member fixed to the casing so as to be provided between the electric wire and the second controller substrate and configured to shield electromagnetic radiation from the second controller substrate toward the electric wire.

An ultrasonic apparatus includes an ultrasonic reception unit configured to receive an ultrasonic wave generated from a subject and output a reception signal, an amplifier configured to amplify an intensity of the reception signal, a transmission unit configured to transmit an amplification signal obtained by amplifying the reception signal, an attenuator configured to output an attenuation signal obtained by attenuating an intensity of the transmitted amplification signal, and an acquisition unit configured to acquire information regarding the subject at least based on the attenuation signal.

Effective component generation device includes internal component and case. Internal components include discharger that generates an effective component. Case is formed in a box shape having discharge port through which an effective component is discharged, and houses internal components. Case includes metal body including a bottom plate and peripheral walls surrounding at least discharger in internal component. Metal body has seamless portion at a corner portion between two surfaces of adjacent peripheral walls oriented in different directions. As a result, there is provided effective component generation device capable of suppressing electromagnetic noise radiated to the outside of case and reducing an influence of electromagnetic noise to the outside.