Patent application number | Description | Published |
20100274799 | METHOD FOR PERMITTING AND BLOCKING USE OF INTERNET BY DETECTING PLURAL TERMINALS ON NETWORK - The present invention is related to a technology for grasping the number of a plurality of terminals of a client using a Cookie in a private network in which plural terminals are shared by redirecting a session which is to be connected to a Web by analyzing a TCP/IP packet, detecting the accurate number of a plurality of terminals of a client using an Internet, and making the accurate number as a DB, and selectively permitting or blocking a connection to Internet according to TCP/IP by using the Cookie pool information of a DB type and JOB when the users configuring and using a private network connect to the Internet at the same time. | 10-28-2010 |
20110179486 | METHOD FOR NEUTRALIZING THE ARP SPOOFING ATTACK BY USING COUNTERFEIT MAC ADDRESSES - The present invention is related to a method for neutralizing a malicious ARP spoofing attack generated in a local network and in particular, the present invention provides a method for neutralizing an ARP spoofing attack comprising a step for detecting an ARP spoofing attack based on an ARP request packet generated for an ARP spoofing attack; a step for generating a plurality of counterfeit MAC addresses and dynamically changing MAC addresses of network devices or servers which are to be protected whenever an ARP spoofing attack is generated; and a step for neutralizing an ARP spoofing attack by using a counterfeit MAC address which is capable of neutralizing an ARP spoofing attack adequately. | 07-21-2011 |
20110185060 | METHOD FOR ALLOWING AND BLOCKING A USER PC WHICH CAN USE INTERNET AT THE SAME TIME IN A PRIVATE NETWORK THEROF A METHOD FOR ANALYZING AND DETECTING A JUDGEMENT ABOUT WHETHER NAT(NETWORK ADDRESS TRANSLATION) CAN BE USED OR NOT USING A TRAFFIC DATA, AND THE NUMBER OF TERMINALS SHARING NAT - The present invention provides a method consisting of a step for analyzing a traffic receiving mirroring, a step for judging whether NAT (Network Address Translation) use of a client configuring and using a private network as well as a provided authorized IP (an Internet IP) is allowed or not, for analyzing and detecting the number of sharing terminals, a step for creating a database using data, and a step for formulating a policy by using information in database, so that when the users of a private network connect to Internet at the same time, permission or blocking of Internet use can be executed selectively. | 07-28-2011 |
20130283341 | METHOD OF SECURING A MOBILE TERMINAL - The present invention relates to a method of implementing a security system for preemptively preventing a decrease in work efficiency due to leaked confidential secrets or the browsing of non work-related sites through a mobile terminal. A security manager implements an environment for allowing, blocking, or recording Internet usage in an independent mobile communication network in an area requiring security, uses a security system server to preregister information on mobile terminals of users who are expected to use the Internet, makes agreements on how personal information will be handled when outside visitors visit the network, registers information on mobile terminals of outside visitors with the security system server, and oversees the installation of a security app whenever necessary. | 10-24-2013 |
20130286872 | SESSION-BASED TRAFFIC ANALYSIS SYSTEM - The present invention relates to a session-based traffic analysis system that may accurately analyze an amount of traffic for each transmission control protocol (TCP) connection using only one-way packets. The system may accurately analyze an amount of two-way traffic using only one-way connection information. | 10-31-2013 |
Patent application number | Description | Published |
20090154529 | METHOD AND APPARATUS FOR ACQUIRING OFDM SYNCHRONIZATION - Provided is a method and apparatus for acquiring OFDM synchronization even when it fails to detect a plurality of symbols at an initial stage. In the method, a frequency is adjusted to a first frequency band and a cross correlation value between a received preamble symbol and a preset preamble symbol is calculated. When the calculated cross correlation value is larger than a predetermined reference value and is first detected, frequency hopping is performed to receive subsequent symbols and cross correlation values to the subsequent symbols are reexamined. When the reexamined cross correlation value larger than the predetermined reference value is detected, timing synchronization, frequency offset estimation, and frame detection are performed. | 06-18-2009 |
20090158131 | VITERBI DECODING APPARATUS AND METHOD - A Viterbi decoding apparatus receives a plurality of block data in time order, and transmits a block data group including the plurality of block data. Then, the Viterbi decoding apparatus applies a Viterbi decoding algorithm to the block data group and outputs some block data of the block data group. In this way, it is possible to provide a Viterbi decoding apparatus that can operate at a high speed and improve a data transmission rate. | 06-18-2009 |
20100094920 | DEVICE AND METHOD FOR EXECUTING FOURIER TRANSFORM - A Fourier transform device generates a first sequence according to an input sequence based on a stored lookup table, and generates an output sequence by performing a butterfly operation on the first sequence a plurality of times. Therefore, hardware capacity and power consumption of the Fourier transform device can be reduced | 04-15-2010 |
20100142596 | SYNCHRONIZATION ERROR TRACKING DEVICE AND METHOD THEREOF - Provided is a synchronization error tracking device and method. The method and system estimates and corrects the synchronization error generated by time and frequency offsets during the data transmission interval and uses a module designed for initial synchronization or channel estimation without adding a new correlation operator. Further, a combining mark value and a synchronization position value acquired during the synchronization process are used. | 06-10-2010 |
20110130161 | TERMINAL AND BASE STATION, AND FREQUENCY SENSING METHOD THEREOF - Provided are a terminal and a base station, and a frequency sensing method thereof. The terminal or the base station may filter a frequency band needing frequency sensing in the entire frequency band where the terminal or the base station may receive an input signal. It is possible to enhance a detection performance and rate of signals by applying frequency sensing to the filtered frequency band. | 06-02-2011 |
20110151812 | APPARATUS AND METHOD FOR DETECTING SIGNAL IN COMMON FREQUENCY BAND - An apparatus for detecting a signal in a common frequency band includes: a signal processor configured to extract a selected band signal from received wireless signals by filtering the received wireless signal based on a frequency selection control signal, convert the extracted signal to a baseband signal, and detect a predetermined signal; a sensing signal determiner configured to determine existence of the signal, output a determination result, and outputs a frequency selection generating signal when the predetermined signal is absent; and a frequency selection controller configured to output the frequency selection control signal by selecting a target band among a plurality of previously decided bands. | 06-23-2011 |
20130165136 | SYSTEM AND METHOD FOR MANAGING RESOURCES IN A COMMUNICATION SYSTEM - The present invention relates to a system and method for managing resources, which involve managing a plurality of frequency resources in a communication system including a plurality of systems not having rights to use a first frequency band. The system and method of the present invention involve: defining, upon the detection of a frequency band available to the plurality of systems from the first frequency band, an interface between objects in the available frequency band so as to enable coexistence and frequency-sharing among the plurality of systems in the available frequency band; defining a primitive of a service access point (SAP) which supports the transceiving of information belonging to the plurality of systems between the objects through the interface; enabling the objects to transceive information belonging to the plurality of systems through the interface using the primitive of the service access point; and enabling the plurality of systems to coexist and share a frequency in the available frequency band to use the available frequency band by transceiving the information belonging to the plurality of systems. | 06-27-2013 |
20130184025 | WHITE SPACE USE SYSTEM WITH CONNECTING COGNITIVE SIGNAL - Provided is a white space use system using a connection recognition signal, which is associated with technology that enables white space devices to search for and to use an available frequency band in a digital broadcasting system. In particular, provided is a white space use system using a connection recognition signal that enables even devices incapable of autonomously searching for an available channel to safely use a white space in interaction with white space devices. | 07-18-2013 |
20130223575 | METHOD AND DEVICE FOR SENSING FREQUENCY FOR OFDM SYSTEMS - Provided is a frequency sensing method and apparatus in an orthogonal frequency division multiplexing (OFDM) system. Provided is a method of sensing a frequency of a received signal that is received from an outside in order to perform one of a plurality of radio communications. An OFDM apparatus may need to inspect a required frequency band before or after performing one of the plurality of radio communications, and to determine whether the frequency band is being used by another radio communication. | 08-29-2013 |
20140171072 | APPARATUS AND METHOD OF CALCULATING AVAILABLE CHANNELS CONSIDERING PRIORITY IN TVWS - Disclosed are an apparatus and a method of calculating available channels considering a priority in a TVWS. An apparatus for calculating available channels considering a priority in a TVWS according to the present invention includes: a communication module configured to receive a request for information on usable available channels from a TV Band Device (TVBD); an available channel calculation unit configured to calculate one or more available channels usable by the TVBD based on one or more predetermined reference parameters according to the request; a priority assignment unit configured to assign a priority to each of the calculated available channels, generate an available channel list including the available channels to which the priorities are assigned, and provide the TVBD with the generated available channel list; and a database configured to store the available channels, to which the priorities are assigned, calculated for each TVBD. | 06-19-2014 |
20140179247 | APPARATUS AND METHOD FOR CONTROLLING TRANSMITTING POWER OF WIRELESS DEVICE - Provided is an apparatus and method for controlling a transmission output of a radio device using a television (TV) band based on a frequency band, the apparatus including a frequency band selecting unit to select frequency bands to be compared, a radio wave attenuation calculation unit to calculate a radio wave attenuation for each of the selected frequency bands, and a transmission output control unit to automatically control the transmission output of the radio device using a TV band based on a difference value among the calculated attenuation values. According to an example embodiment, it is possible to extend a service area while sufficiently protecting a service being provided in the TV band, thereby realizing an efficient use of frequency resources. | 06-26-2014 |
20150208422 | METHOD OF ALLOCATING RADIO RESOURCES AND APPARATUS OF ALLOCATING RADIO RESOURCES IN COGNITIVE RADIO SMALL-CELL NETWORKS - Disclosed is a method of allocating radio resources, including: acquiring available channel information of a cognitive radio small cell; analyzing a channel characteristic based on the available channel information and dividing a required transmission rate of the cognitive radio small cell into required transmission rates for each available channel; and performing a power control for each available channel based on the divided required transmission rates for each available channel. The method of allocating radio resources may be performed under an interference environment in which a plurality of cognitive radio small cells is present and the plurality of cognitive radio small cells shares an available channel. | 07-23-2015 |
20150245363 | WIRELESS COMMUNICATION APPARATUS FOR REDUCING INTERFERENCE WITH NEIGHBORING CELL AND METHOD OF REDUCING INTERFERENCE THEREOF - Disclosed are a wireless communication apparatus for reducing interference by a neighboring cell, and a method of reducing interference thereof. The method of reducing interference by a wireless communication apparatus includes: determining a neighboring small cell from one or more surrounding small cells adjacent to a small cell; allocating a communication resource to one or more users according to a channel state of the one or more users subscribing to the small cell; and transmitting data to the one or more users, to which the communication resource is allocated, by adopting one or more interference reducing methods for reducing interference by the neighboring small cell. | 08-27-2015 |