Abstract:
The present invention relates to a charge equalization apparatus, which allows the primary and secondary windings of a transformer to be easily fabricated, can control the flow of charge to batteries depending on the charged states of series-connected batteries, and can prevent overcurrent from flowing into a battery currently being charged.
Abstract:
The present invention relates to a data processing method and system for checking an interactive communication sequence (ICS) relating to a plurality of users in a communication record by using a variable time window, and checking an interactive communication sequence pattern (ICSP) that is a frequently generated interactive communication sequence from among the checked interactive communication sequences. The data processing method includes: (a) storing an inverse pair in a communication record in an interactive communication sequence set or a candidate set that is a set of inverse pairs that can be part of the interactive communication sequence; (b) generating an interactive communication sequence having a length other than 1 by combining interactive communication sequences included in the interactive communication sequence set; and (c) generating an interactive communication sequence having a length other than 1 by combining the inverse pair included in the candidate set and one of the interactive communication sequence included in the interactive communication sequence set of (a) and the interactive communication sequence generated in (b).
Abstract:
Provided are a harmonic rejection mixer and a harmonic rejection mixing method. A plurality of oscillator signals having a ⅓ duty cycle and uniform phase differences may be generated and a differential or quadrature mixer with harmonic rejection may be realized by using the oscillator signals.
Abstract:
The present invention relates to a system for sharing emotion data and a method of sharing emotion data using the same, which are capable of obtaining collective intelligence through an emotion data set for specific video data, etc. The system for sharing emotion data comprises a plurality of clients each configured to comprise input means for inputting emotion data, storage means for storing the inputted emotion data, and a display unit for displaying integrated data received to input the emotion data; a sharing server configured to comprise formation means for receiving a plurality of the emotion data from the plurality of clients and forming an emotion data set and to transmit the integrated data to the clients; and a main database coupled to the sharing server and configured to store at least any one of the integrated data or the emotion data set formed in the sharing server.
Abstract:
Provided is a hybrid rocket using catalytic decomposition of oxidizer, which generates thrust by injecting high temperature oxygen and steam formed by catalytic decomposing liquid oxidizer into solid fuel and thereby auto igniting and combusting the solid fuel without a separate igniter. The hybrid rocket using catalytic decomposition of an oxidizer, including: a liquid phase oxidizer (0); a solid phase fuel (100) formed with a combustion chamber in an inside thereof, the combustion chamber passing through the solid fuel from one side to the other side so as to allow the oxidizer (0) flowing therein; a catalytic reactor (200) filled with a catalyst (220) for catalytically reacting the oxidizer (0), and introducing the oxidizer (0) through one side thereof and discharging the oxidizer (0) catalytically reacted through the catalyst (220) through the other side thereof; a combustor (300) formed with a space for inserting the solid fuel (100) therein, and introducing high temperature oxygen and steam in an inside thereof through one side thereof connected with the other side of the catalytic reactor (200), reacting them with the solid fuel (100) and discharging a combustion gas through the other side thereof; and a nozzle (400) connected with the other side of the combustor (300) to accelerate the combustion gas produced in the combustor (300) and discharge the combustion gas to the other side of the nozzle (400).
Abstract:
An optimum perturbation apparatus and method in a multi-antenna, multi-user communication system are provided. In the optimum perturbation method, upon receipt of modulation symbols, channel responses are decomposed into eigenvalues and eigenvectors by Single Value Decompositin (SVD) and a distortion value of the modulation symbols is estimated using the eigenvectors and the eigenvalues to minimize noise and interference power. The modulation symbols are precoded by combining the modulation symbols with the estimated distortion value.
Abstract:
The present invention relates to a transportation system using an electric automobile. The transportation system using the electric automobile comprises the electric automobile and an electricity-supply unit which supplies electricity to the electric automobile. The electric automobile charges a battery included when the electricity is supplied from an external source in motion, using some or all of the electricity and is driven by the electricity of the battery when the electricity supply to the automobile in motion is stopped.
Abstract:
Disclosed herein is a modulator of vascular permeability using pulsed laser and a method for modulating vascular permeability using the same. More specifically, because the pulsed laser effectively induces vascular permeabilization, effectively delivers intravascular materials into tissues and minimizes insult to the tissues by the induced vascular permeabilization, and locally targets a subcutaneous tissue for noninvasive modulation due to its nonlinearity, it may be usefully used for modulation of permeability.
Abstract:
The present invention is to implement a SOP of a mobile RFID interrogator. The substrate has external connection terminal patterns on a first surface of a substrate and circuit wiring patterns on a second surface of the substrate. a high frequency front-end part, a power amplifier IC, an analog-digital signal processing chip and the like are mounted on the second surface. The high frequency front-end part is to transmit and receive a RFID signal. The power amplifier IC is to output an amplified high frequency transmission signal to the high frequency front-end part. The analog-digital signal processing chip is to output a high frequency transmission signal to the power amplifier IC and process the RFID signal received through the high frequency front-end part, a mold resin is to cover the second surface and components mounted on the second surface for electrical insulation from outside and physical protection from outside.
Abstract:
A system and method for providing an efficient video-on-demand (VoD) service using unicast/multicast in an Internet Protocol (IP) network are provided. A VoD service system includes a multicast efficiency factor (MEF) checking unit to check an MEF in content in response to a request for the content from a client, and a content transmission unit to multicast or unicast the content over a network depending on the checked MEF. Here, the MEF includes an indicator of efficiency for multicast transmission relative to unicast transmission of the content.