Abstract: Disclosed herein are an alphabet input device and an alphabet recognition system in a small-sized keypad. The device includes: a first keypad part comprising a plurality of buttons each of which is assigned with a symbol extracted from strokes of alphabet characters so that the alphabet characters be input by one of the buttons or a combination of two or more of the buttons; and a second keypad part comprising one or more buttons each assigned with an alphabet character having a high usage frequency. With the device, alphabet characters can be inputted in a simper and more efficient manner.

Abstract: The present invention is related to benzothiophen-2-carbonylguanidine derivatives, a preparation method thereof, and pharmaceutical compositions containing the same. The derivatives have potent inhibitory effect on the sodium/hydrogen exchanger NHE-I, improve the functional recovery of ischemia/reperfusion-induced heart injury in isolated ischemic heart models, and significantly reduce the myocardiac infarct size in in vivo ischemic animal models, thereby showing excellent cardioprotective effects. Also, the derivatives are protective of both neuronal cells and the brain as proven by their protective effects on neuronal cells from necrosis and apoptosis and by their ability to significantly reduce cerebral infarct sizes in in vivo ischemic brain models.

Abstract: An encryption and decryption apparatus includes a round key generator generating at least one round key for iterative operations in each of a plurality of rounds using an input key for one of the encryption and decryption; an initial round key adder receiving a plurality of divided parts of an input data, consecutively receiving a plurality of parts of an initial round key which is output from the round key generator for an initial round and corresponds to each of the divided input data, and adding the input data and the corresponding part of the initial round key; a first operator receiving a first data which is output from the initial round key adder and a part of the round key which is output from the round key generator and performing operations for one of the encryption and decryption; a second operator receiving a second data which is output from the initial round key adder and another part of the round key which is output from the round key generator, and performing operations for one of the encryption

Abstract: A method of searching for a broadcasting channel of a specific program in a digital multimedia broadcasting (DMB) receiving terminal. The method includes detecting a program number input by a user, determining whether particular bits in a header of a received transport stream (TS) packet are identical to fixed values for the particular bits in the header, if the particular bits in the header are identical to the fixed values for the particular bits in the header, determining whether particular bits in a payload of the TS packet are identical to fixed values for the particular bits in the payload, and if the particular bits in the payload are identical to the fixed values for the particular bits in the payload, determining that the TS packet has program map table (PMT) information, and analyzing the PMT information to detect a packet identifier (PID) of an audio/video packetized elementary stream (PES) constituting the specific program.

Abstract: A signal processing apparatus for performing modular multiplication for use in a signal processing system includes a first logic for outputting a signed multiplicand by selectively performing a one's complementary operation on a multiplicand according to a Booth conversion result of a multiplier in modular multiplication; a second logic for outputting a modulus which is signed in the modular multiplication based on a carry input value Carry-in of a current clock, determined from a carry value cin for correction of a previous clock, and on a sign bit of the multiplicand; and a third logic for receiving the signed multiplicand and the signed modulus, and calculating a result value of the modular multiplication by iteratively performing a full addition operation on a carry value C and a sum value S of the full addition operation, found at the previous clock. The present invention provides a high-speed modular multiplication apparatus with fewer gates and reduced power consumption.

Abstract: A weighted secret sharing and reconstructing method includes encoding the secret using a predetermined code, producing voices so that different weights are assigned to errors in an error vector according to locations of the errors, encrypting the encoded secret using the error vector and distributing the encrypted encoded secret to a plurality of participants.

Abstract: A method of obtaining C=(c0, . . . , cn?1) of a product of two elements A and B of a finite field GF(2n). The method includes permuting the last d coefficients (an?1, . . . , an?d) of a multiplier A with predetermined variables (sn?1, . . . , sn?d); operating C:C=?(bi+j?A) for (I+j)th coefficient of a multiplicand B to update coefficients of C, where i and j are integers, and A:=(s, . . . ,?x?2)?(0,xn?1?j?f1, . . . ,sx?1?j?fx?d,0, . . . ,0) repeatedly for j=0 to (d?1) to update coefficients of A, where ? represents an XOR operation and ? represents an AND operation; and repeatedly performing the permuting and operating by increasing i from 0 to (n?1) by d.

Abstract: An encryption method for encrypting data for multi-level access control in an ad-hoc network including hierarchical security classes includes encoding data into a predetermined code using a first public key of a highest security class, adding a private key of a security class to which a user belongs, to the predetermined code, and generating a ciphertext by adding a second public key, published by the security class to which the user belongs, to the addition result. A corresponding decryption method includes subtracting the private key from the ciphertext, performing a first decoding using a secret key known by a security class, to which a receiver belongs, by the receiver of the ciphertext, and correcting errors included in the second public key and detecting the data by performing a second decoding of the result of the first decoding using a code known by the security class to which the receiver belongs.

Abstract: The present invention relates to a method, apparatus and system for network resource reservation and a mobile terminal therefor. Provided are a method, apparatus and system for minimizing unnecessary network resource reservation by predicting an expected direction of a terminal. The method for network resource reservation based on a moving speed of a mobile terminal includes: receiving a request for network resource reservation from the mobile terminal; calculating an expected moving direction of the mobile terminal, based on a speed-based moving probability model represented by a probability density function for a movable direction dependent on the moving speed of the mobile terminal, a moving speed of the mobile terminal, and position information of the mobile terminal; and performing network resource reservation for wireless cells included in the calculated expected moving direction. Thus, unnecessary network resource reservation can be minimized by predicting the moving direction of the terminal.

Abstract: A data verification method and system is provided. The data verification method includes the steps of transmitting data from a sender to a receiver over a signaling channel, transmitting a first set of bits to the receiver over a voice channel, wherein the first set of bits is generated using the data in the sender, and verifying the data through comparison between the first set of bits and a second set of bits that is generated based on the data in the receiver. The first and the second sets of bits may be a group of bits that are selected from a hash value using a selection mask in the sender and the receiver respectively, wherein the section mask has the same length as the hash value and the hash value is calculated based on the data, and the selection mask may be pre-defined between the sender and the receiver.

Abstract: An automated teller machine (ATM) having a wireless network access apparatus and a method for providing financial services using the ATM are provided. The ATM includes a user interface unit, a first financial processing unit, a first network access unit, a second network access unit, and a second financial service unit. The user interface unit performs data communication with a storage medium on which information is recorded, and outputs information to a user through an output apparatus. The first financial processing unit provides financial services including account inquiry, deposit, and withdrawal, by performing data communication processes with a recognized storage medium. The first network access unit is connected to an ATM network connected to a financial institution server, transmits data obtained as a result of performing financial services, to the financial institution server, and receives processed data from the financial institution server.

Abstract: A verifier for remotely checking integrity of a device connected via a network, includes a calculator which fills free areas in a memory of the device with random numbers and generates a local check code; an interface which transmits integrity check parameters that are used by the device to generate a remote check code, to the device, and receiving the remote check code from the device; a determiner which detects a remote check code generation time and compares the detected remote check code generation time with a presorted remote check code generation expectation time; and a controller which confirms the integrity of the memory of the device when the remote check code generation time does not exceed the remote check code generation expectation time according to a result of the determination and the local check code matches the remote check code.

Abstract: A traffic information service apparatus using an ad-hoc network and a method for controlling the same. The apparatus provides an ad-hoc network between vehicles and roadside devices, and collects/provides traffic information using the ad-hoc network. The method for providing a user with traffic information, comprising the steps of a) allowing vehicles to broadcast their registration messages to create an ad-hoc network, and creating the ad-hoc network between the vehicles on the basis of the registration messages, b) allowing a Road Side Equipment (RSE) to receive the registration messages broadcast from the vehicles, and collecting traffic information from the registration messages, and c) allowing the RSE to transmit the traffic information to a traffic information service center.

Abstract: A token has a memory, an interface allow connection to a host, and a processor. The processor, in response to user input for configuring a remote access connection, executes a first set of processing instructions to establish a trusted connection with the server host, exchanges credentials over the trusted connection to establish a secure connection with the server host over an untrusted connection, and defines configuration information for accessing user selected data or services.

Abstract: A security system using an RSA algorithm that includes a key input section for receiving a secret key and a public key used in one of encryption and decryption of a message, a random coefficient generating section for generating a random coefficient r having a bit of a predetermined size, a first calculation section for dividing the secret key into a first secret key and a second secret key by using the value of r, and performing an exponentiation of RSA algorithm by using the respective secret keys and the public key, and a second calculation section for performing one of the encryption and the decryption by combining results of exponentiation calculated respectively by using the first and the second secret keys.

Abstract: A mesoporous alumina molecular sieve and a method of manufacturing a mesoporous alumina mesoporous alumina molecular sieve of the invention is produced without using traditionally used additives. Also, because the size and distribution of the pores can be controlled, the molecular sieve can be produced simply and economically, producing molecular sieve with high surface area and thermal stability. Further, a method of manufacturing an alumina nanotube by using a surfactant and a use of the alumina nanotube as a hydrogen storage material are provided.

Abstract: The present invention relates to furancarbonylguanidine derivatives, a preparation method thereof and a pharmaceutical composition comprising the same. Furancarbonylguanidine derivatives of the present invention inhibit NHE-1 (sodium-hydrogen exchanger isoform 1), which helps recovery of heart function damaged from ischemia/reperfusion and decreases myocardial infarction rate, indicating that they have protective effect on myocardial cells. Thus, furancarbonylguanidine derivatives of the present invention can be effectively used for the prevention and the treatment of ischemic heart diseases such as myocardial infarction, arrhythmia, angina pectoris, etc, and also a promising candidate for a heart protecting agent applied to reperfusion therapy including thrombolytics or cardiac surgery including coronary artery bypass graft, percutaneous transluminal coronary angioplasty, etc.

Abstract: Provided are a system and method for determining whether to provide service and a content of the service based on ubiquitous-based context information. The method includes the steps of registering at least one context-aware service (CAS); determining whether sensors associated with the CAS are registered; when all the sensors are registered, checking all contexts associated with the CAS; upon receipt of a CAS request, receiving context information from the sensors and determining whether the context information satisfies the contexts; and providing the CAS if the context information satisfies at least one of the contexts. With the flexible engine determining whether to provide service corresponding to a current context even though all context information constituting the CAS is not collected, information is quickly provided upon receipt of a service request from a user.

Abstract: Provided is an apparatus for encryption/decryption and electronic signature in a mobile communication environment. A signal processing apparatus, performing modular multiplication in an electronic device, includes a first logic for outputting a signed multiplicand by selectively performing a one's complementary operation on a multiplicand according to a Booth conversion result of a multiplier in modular multiplication; a second logic for outputting a modulus which is signed in the modular multiplication based on a carry input value Carry-in of a current clock, determined from a carry value cin for correction of a previous clock, and on a sign bit of the multiplicand; and a third logic for receiving the signed multiplicand and the signed modulus, and calculating a result value of the modular multiplication by iteratively performing a full addition operation on a carry value C and a sum value S of the full addition operation, found at the previous clock.

Abstract: Provided is a mobile phone including: a transceiver for receiving voice and data signals from outside; a voice processing part for demodulating the voice signal input from the transceiver and outputting the voice signal as a voice, and modulating a voice received from outside and converting the voice into a voice signal; a control part for processing the voice signal and the data signal received from the transceiver; a display part controlled by the control part to display a vector graphic; a memory for storing an operating program of the control part and a system program; a vector graphic processing part for producing and modulating a vector graphic in response to control of the control part and outputting the vector graphic to the display part; and a button including an input part for transmitting an input from outside to the control part, the input part performing the function of connecting to a wireless Internet service when pressed and controlling the size of the vector graphic when rolled.