摘要:
A portable terminal and method of providing tactile sensation responsive to user touching at the portable terminal is provided. The portable terminal includes a housing disposed beneath a touch screen display, such that the housing is configured to impact the touch screen display in response to a user input impressed by touch on at least a portion of the touch screen display, the housing including at least one magnetic device configured to collide with the housing. The portable terminal further including a magnetic actuator disposed relative to the at least one magnetic device, such that the magnetic actuator controls a first magnetism that displaces the least one magnetic device having a second magnetism thereby creating the impact between the at least one magnetic device and the housing.
摘要:
Provided is a transmitter in a wireless power transmission system, the transmitter including a Transmission (Tx) power converter for converting a Direct Current (DC) voltage into a first Alternating Current (AC) voltage, and converting the converted first AC voltage into a second AC voltage by amplifying the converted first AC voltage, a Tx matching circuit for matching an impedance thereof with that of a receiver for receiving the second AC voltage to transmit the second AC voltage, a Tx resonator for resonating the second AC voltage into resonant waves to transmit the second AC voltage to the receiver, and a Tx controller for determining an amplification rate of the first AC voltage and controlling the Tx power converter to convert the first AC voltage into the second AC voltage according to the determined amplification rate.
摘要:
A wireless power transmission controlling apparatus and method are provided. The apparatus includes a power amplifier that receives a source power, amplifies the received source power, and outputs a wireless power transmission signal from the amplified received source power, a band pass filter that filters the wireless power transmission signal, and passes a harmonic wave corresponding to a communication frequency band, and a communication unit that transmits a wireless power transmission control signal using the harmonic wave corresponding to the communication frequency band.
摘要:
A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.
摘要:
A Printed Circuit Board (PCB) and a method for manufacturing the same are provided. A circuit pattern is formed by printing conductive ink/paste on a substrate, and sintering a layer of the conductive ink or curing a layer of the conductive paste by applying heat. A primary plating layer is formed through electroless plating or electrolytic plating of a high-melting point metal on the circuit pattern. A secondary plating layer is formed through electroless plating or electrolytic plating of a precious metal on the primary plating layer to improve wetting with solder.
摘要:
A group of mosquito-borne flaviviruses that cause fatal encephalitis in humans is among the most important of all emerging human pathogens of global significance. This group includes Japanese encephalitis virus (JEV), West Nile virus, St. Louis encephalitis virus, and Murray Valley encephalitis virus. In the present disclosure, the first reverse genetics system has been developed for SA14-14-2, a live JE vaccine that is most commonly used in most JE-endemic areas, by constructing an infectious bacterial artificial chromosome that contains the full-length SA14-14-2 cDNA. Using this infectious SA 14-14-2 cDNA, combined with a mouse model for JEV infection, a key viral neurovirulence factor has been discovered that is a conserved single amino acid in the ij hairpin adjacent to the fusion loop of the viral E glycoprotein, which regulates viral infectivity into neurons within the central nervous system.
摘要:
A large capacity memory module mounting device employed in a portable terminal is provided, including a large capacity memory module including a plurality of first contact pads; and a flexible circuit board including a plurality of second contact pads and electrically connected to the large capacity memory module by forming solder pads in a heating process after the first and second contact pads are positioned in a face-to-face manner. Accordingly, the large capacity memory module can be advantageously mounted to the portable terminal and an electromagnetic field can be effectively shielded.
摘要:
Provided are a semiconductor package having an advantage for stacking and a stack-type semiconductor package using the semiconductor package. In one embodiment, the semiconductor package includes a wing-type substrate comprising a first surface, a second surface opposite the first surface, a chip pad area, an external terminal area on the first surface and a stack-type terminal pad on the second surface, wherein the chip pad area is lower than the external terminal area; a semiconductor chip mounted on the wing-type substrate within the chip pad area, wherein the semiconductor chip is electrically connected to the wing-type substrate; a sealing part on the wing-type substrate, the sealing part sealing the semiconductor chip and the wing-type substrate; and a conductive connecting member on the external terminal area, wherein a height of the conductive connecting member is greater than a height of the wing-type substrate.
摘要:
A pad structure usable with a semiconductor device may include an insulating layer pattern structure, a plug, and a pad. The insulating layer pattern structure has a plug hole and at least one via hole. The plug is formed in the plug hole. The pad is formed on the insulating layer pattern structure. The pad is electrically connected with the plug and has a lower surface and an uneven upper surface. The lower surface includes a protruded portion inserted into the via hole. The uneven upper surface includes a recessed portion and an elevated portion—to provide high roughness and firm connection.
摘要:
An apparatus and method are provided for transmitting and receiving power for wireless power transmission. A power transmitting apparatus includes a power supplier for generating power; a resonator for transmitting the power generated by the power supplier to a plurality of power receiving apparatuses; and a controller for determining whether a power transmission to a new power receiving apparatus is possible using a power receiving apparatus management table, when the new power receiving apparatus is detected while the power transmissions of the plurality of power receiving apparatuses are being performed, and controlling the resonator to transmit power to the new power receiving apparatus, when the power transmission to the new receiving apparatus is possible. The power transmitting apparatus stably supplies power to a plurality of power receiving apparatuses by determining power transmission states of the plurality of power receiving apparatuses.