| Patent application number | Description | Published |
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| 20090282319 | HIERARCHICAL DECODING APPARATUS - A decoder includes multiple decoder stages and a controller. The decoder stages perform decoding operations with respect to a received signal using corresponding different decoding algorithms. The controller determines whether the decoding operation performed by one of the decoder stages with respect to the received signal is successful, and controls the decoding operation of each of the other decoder stages in response to a result of the determination. | 11-12-2009 |
| 20090307566 | ITERATIVE DECODING METHOD AND APPARATUS - An iterative decoding method is disclosed and includes sequentially executing a number of iterative decoding cycles in relation to a parity check equation until the parity check equation is resolved, or a maximum number N of iterative decoding cycles is reached, during execution of the number of iterative decoding cycles, storing in a data buffer minimum estimated values for a set of variable nodes corresponding to a minimum number of bit errors, and outputting the minimum estimated values stored in the data buffer as a final decoding result when the number of iterative decoding cycles reaches N. | 12-10-2009 |
| 20100110875 | MODIFIED SLM SCHEME WITH LOW COMPLEXITY FOR PAPR REDUCTION OF OFDM SYSTEMS - Provided are an apparatus and method for reducing a PAPR with less computation complexity without distortion using a selected mapping scheme (SLM) in an OFDM system. The method includes: generating a plurality of OFDM signal sequences by performing an inverse fast Fourier transform (IFFT) operation on input symbol sequences, which are probabilistically independent and have identical information; linearly combining the plurality of OFDM signal sequences by using complex numbers; and generating different OFDM signal sequences based on the linear combination. Accordingly, the number of phase sequences can be increased without almost increasing a computation amount of SLM. | 05-06-2010 |
| 20100174959 | DECODING METHOD AND MEMORY SYSTEM DEVICE USING THE SAME - A decoding method includes performing a first decoding method and performing a second decoding method when decoding of the first decoding method fails. The first decoding method includes updating multiple variable nodes and multiple check nodes using probability values of received data. The second decoding method includes selecting at least one variable node from among the multiple variable nodes; correcting probability values of data received in the selected at least one variable node; updating the variable nodes and the check nodes using the corrected probability values; and determining whether decoding of the second decoding method is successful. | 07-08-2010 |
| 20100296433 | SOURCE ANTENNA SWITCHING SCHEME FOR NON-ORTHOGONAL PROTOCOL - The present invention relates to a source antenna switching scheme for a non-orthogonal protocol; and more particularly, to a source antenna switching scheme for a non-orthogonal protocol, which transmits a signal of a source node to a destination node through a relay node. The present invention provides a source antenna switching scheme for a non-orthogonal decode-and-forward protocol that can acquire a greater diversity than the conventional NDF protocol. In other words, the present invention provides a source antenna switching scheme for a non-orthogonal decode-and-forward protocol that can increase a diversity order by adding a reasonable priced antenna instead of expensive hardware such as an RF chain when there are a plurality of antenna in the RF chain. | 11-25-2010 |
| 20120060071 | PRODUCT CODE DECODING METHOD AND DEVICE - A method for a decoding device to decode a codeword matrix of a product code includes: generating a first extended parity check matrix for a vertical code; decoding a horizontal codeword of a plurality of rows in the codeword matrix to thus perform a first decoding process; generating a second extended parity check matrix by removing a column corresponding to a row of the first decoding-succeeded horizontal codeword from the first extended parity check matrix; and decoding the first decoding-failed horizontal codeword by using the second extended parity check matrix to thus perform a second decoding process. Therefore, the simple and reliable product code decoding method is provided. | 03-08-2012 |
| 20120184232 | METHOD FOR SELECTING SOURCE TRANSMIT ANTENNA IN COOPERATIVE MIMO COMMUNICATION SYSTEM - Disclosed is a method for selecting a source transmit antenna in a cooperative multiple-input and multiple-output (MIMO) communication system including a source node, a relay node and a destination node. The method includes determining a source transmit antenna selection metric such that a source-destination channel, a source-relay channel and a relay-destination channel are related to one another, and selecting a positive integer number of antennas such that the source transmit antenna selection metric is maximized. | 07-19-2012 |
| 20130077467 | RECEIVER IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM AND SIGNAL PROCESSING METHOD THEREOF - According to an exemplary embodiment of the present invention, a receiver in an orthogonal frequency division multiple access (OFDMA) system includes: an extraction unit that extracts received user signal subvectors for subcarriers assigned to the receiver from received signal vectors received from a transmitter; and a fast Fourier transform (FFT) unit that performs a fast Fourier transform on the received user signal subvectors. | 03-28-2013 |
| 20140165191 | APPARATUS AND METHOD FOR DETECTING IN-VEHICLE NETWORK ATTACK - An apparatus for detecting an in-vehicle network attack, is configured to cumulatively count packets for each device that has a respective ID and is connected to an in-vehicle network bus. The apparatus is configured to cumulate a check value every time the packets are cumulatively counted to calculate a cumulated value, and determine that an attack is conducted when an average cumulated value obtained by dividing the cumulated value by a cumulative counted value does not exceed a first threshold value. | 06-12-2014 |
| 20160099926 | METHOD OF SEQUENTIALLY AUTHENTICATING CAN PACKETS USING DIVIDED MACS AND APPARATUS FOR IMPLEMENTING THE SAME - A method of transmitting K messages using divided message authentication codes (MACs) in a controller area network (CAN) includes: generating a MAC using a first message and a specific MAC, performing a first operation with respect to j using j-th messages subsequent to the first message and a second MAC part of the generated MAC, performing a second operation with respect to j using a result of the performed first operation and a j-th subblock subsequent to a first MAC subblock among K MAC subblocks obtained by dividing a first MAC part of the generated MAC, transmitting the first message along with the first MAC subblock, and transmitting K-1 j-th messages in an order of j, each of the j-th messages being transmitted along with a j-th result of the performed second operation. | 04-07-2016 |
| 20160099939 | METHOD OF AUTHENTICATING CAN PACKETS USING MIXTURE OF MACS AND APPARATUS FOR IMPLEMENTING THE SAME - A method and apparatus for authenticating packets in a controller area network (CAN) are disclosed. The method includes transmitting messages using a mixture of message authentication codes (MACs) in a controller area network (CAN). In addition, a first MAC is generated using a first message and the first MAC is divided into a first MAC part and a second MAC part. A second MAC is generated using a second message and the second MAC is divided into a third MAC part and a fourth MAC part. A linear operation is performed between the second MAC part and the third MAC part to generate a first authentication MAC. The first message is transmitted with the first MAC part and the second message is transmitted with the first authentication MAC. | 04-07-2016 |
| Patent application number | Description | Published |
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| 20110242062 | STYLUS AND METHOD OF MANUFACTURING THE SAME - The present disclosure relates to a stylus and a method of manufacturing the same. The stylus is configured to select one of plural pieces of content installed in advance in a communication terminal and indicate an associated operation of the selected piece of content to be performed by touching the selected piece of content with the stylus. The stylus includes a non-conductive elastic pen tip and a protective cap made of a conductive fiber material and covering a convex upper portion of the pen tip to protect the convex upper portion of the pen tip in order to prevent activation of an undesired icon through minimization of any possible recognition failure upon selection of an icon among various icons displayed on a touch screen of a communication terminal Further, the method provides a stylus which includes a non-conductive elastic pen tip and a protective cap made of a conductive fiber material and protecting the pen tip to minimize scratches, which can be formed on a touch screen by the stylus in the case of repeated selection of various icons displayed on the touch screen of a communication terminal. | 10-06-2011 |
| 20110261026 | STYLUS FOR CELLULAR PHONE - The present invention is to protect a pen tip by covering the pen tip of a touch pen used to input data on a touch screen or a touch panel with a conductive or nonconductive cap. A stylus for a cellular phone according to an exemplary embodiment of the present invention includes: a pen tip for a touch pen including a connection groove into which a stick-type pen body is fitted and a void for restoring the shape of the pen tip by elastic force at the time of touching the touch screen; a thin-film type protective cap covering the pen tip; and a pointer of which one end is connected to the pen body and the other end is fitted into the connection groove of the pen tip and preventing the pen tip from being transformed due to excessive elastic force. | 10-27-2011 |
| 20120112378 | STYLUS AND METHOD OF MANUFACTURING THE SAME - The present disclosure relates to a method of manufacturing a stylus pen configured to select one of plural pieces of content installed in advance in a communication terminal. Examples of the method comprise preparing a protective cap of a conductive fiber material by sequentially stacking nickel, copper and nickel on both sides of a polyester fiber by deposition coating, placing the protective cap on a mold, applying a bonding agent to an internal surface of the protective cap, and injecting a non-conductive liquid onto the internal upper portion of the protective cap. | 05-10-2012 |
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| 20090018334 | Chiral inorganic-organic composite porous material and method for preparing the same - The present invention provides a chiral inorganic-organic composite porous material in which cationic chiral organic molecules are present as charge-balancing cations in a porous material containing charge-balancing cations, as well as a method for preparing the same by an ion exchange process. The chiral inorganic-organic composite porous material according to the present invention is excellent in stability, selectivity and durability, and thus, will be useful as a chiral-selective catalyst or a material of separating an isomeric mixture. | 01-15-2009 |
| 20110213558 | METHOD FOR PREDICTING ACTIVATION ENERGY USING AN ATOMIC FINGERPRINT DESCRIPTOR OR AN ATOMIC DESCRIPTOR - The present invention provides a method for constructing a database of atomic fingerprint descriptors. The invention provides a method for predicting activation energy using an atomic fingerprint descriptor and an atomic descriptor, the method comprising the steps of: (i) calculating the atomic fingerprint descriptor of a substrate; (ii) comparing the calculated atomic fingerprint descriptor with the constructed atomic fingerprint descriptor database to select an atomic position where cytochrome P450-mediated metabolism occurs; and (iii) predicting activation energy for the selected atomic position using an atomic descriptor. Also, the invention provides a method of predicting the activation energy of CYP450-mediated phase I metabolism using effective atomic descriptors. Specifically, the invention provides a method of predicting the activation energy either for cytochrome P450-mediated hydrogen abstraction or for tetrahedral intermediate formation in cytochrome P450-aromatic hydroxylation using equations including effective atomic descriptors. The method of the invention can rapidly predict activation energy for phase I metabolites at a practical level without having to perform a docking experiment between any additional CYP450 and the substrate, or a quantum mechanical calculation, thereby making it easier to develop new drugs using a computer. Also, the present invention may propose a strategy for increasing the bioavailability of drugs through the avoidance of metabolites based on the possibility of drug metabolism. Furthermore, the method of the present invention proposes new empirical approaches which can also be easily applied to activation energies for various chemical reactions, and makes it possible to explain physical and chemical factors that determine activation energy. In addition, through the prediction of activation energy according to the present invention, it is possible to predict i) metabolic products, ii) the relative rate of metabolism, iii) metabolic regioselectivity, iv) metabolic inhibition, v) drug-drug interactions, and vi) the toxicity of a metabolite. | 09-01-2011 |
| 20120084012 | METHOD FOR PREDICTING ACTIVATION ENERGY USING ATOMIC FINGERPRINT DESCRIPTOR OR ATOMIC DESCRIPTOR - The present invention provides a method for constructing a database of atomic fingerprint descriptors. The invention provides a method for predicting activation energy using an atomic fingerprint descriptor and an atomic descriptor, the method comprising the steps of: (i) calculating the atomic fingerprint descriptor of a substrate; (ii) comparing the calculated atomic fingerprint descriptor with the constructed atomic fingerprint descriptor database to select an atomic position where cytochrome P450-mediated metabolism occurs; and (iii) predicting activation energy for the selected atomic position using an atomic descriptor. Also, the invention provides a method of predicting the activation energy of CYP450-mediated phase I metabolism using effective atomic descriptors. Specifically, the invention provides a method of predicting the activation energy either for cytochrome P450-mediated hydrogen abstraction or for tetrahedral intermediate formation in cytochrome P450-aromatic hydroxylation using equations including effective atomic descriptors. | 04-05-2012 |
| 20130018594 | APPARATUS AND METHOD FOR IDENTIFYING SECONDARY STRUCTURE OF PROTEIN USING ALPHA CARBON COORDINATESAANM Cho; Kwang-HwiAACI SeoulAACO KRAAGP Cho; Kwang-Hwi Seoul KRAANM No; Kyoung-TaiAACI SeoulAACO KRAAGP No; Kyoung-Tai Seoul KRAANM You; Min-JaeAACI SeoulAACO KRAAGP You; Min-Jae Seoul KR - This invention relates to an apparatus and method for identifying the secondary structure of a protein using alpha carbon coordinates. The apparatus includes a pseudo center fixing unit receiving a series of alpha carbon coordinates of amino acid sequences of a target protein so that pseudo centers corresponding to respective alpha carbons are disposed at positions fixed between the respective alpha carbons and alpha carbons adjacent thereto; a helix determination unit determining, based on a dihedral angle and a distance between a preset number of consecutive pseudo centers, whether the secondary structure formed by amino acids corresponding to the consecutive pseudo centers is a helix; and a strand determination unit determining, based on distances between pseudo centers of different pseudo center sequences in a plurality of pseudo center sequences having a preset number of consecutive pseudo centers among pseudo centers other than those corresponding to the helix, whether the secondary structure formed by amino acids corresponding to the pseudo centers of respective pseudo center sequences is a strand. According to this invention, the secondary structure including amino acids corresponding to pseudo centers can be identified based on the dihedral angle or the distance between pseudo centers using pseudo centers fixed between alpha carbons, thus attaining increased accuracy, compared to conventional methods using alpha carbon coordinates. | 01-17-2013 |
| 20130163873 | Detecting Separator Lines in a Web Page - A system and method of detecting separator lines in a web page may include determining coordinates of visible web elements on a web page, generating an edge image of the web page based on the coordinates of the web elements, filtering edges belonging to non-separator line elements within the edge image, detecting horizontal lines within the edge image, detecting vertical lines within the edge image, and filtering short lines within the edge image. A system for detecting separator lines in a web page may include a memory device, and a processor communicatively coupled to the memory, in which the processor determines coordinates of visible web elements on a web page, generates an edge image of the web page based on the coordinates of the web elements, filters edges belonging to non-separator line elements within the edge image, detects horizontal lines within the edge image, detects vertical lines within the edge image, and filters short lines within the edge image. | 06-27-2013 |
