Patent application number | Description | Published |
20150126241 | METHOD FOR DETERMINING TRANSMISSION POWER - There is a provided a method for deciding transmission power to securely transmit data, the method comprising: determining a transmission rate toward an intended receiver, based on an upper limit of a decoding error probability of the intended receiver and a lower limit of a decoding error probability of an unwanted over hearer; and deciding a transmission power toward the intended receiver based on the upper limit and the lower limit. Here, if the upper limit is lower than the lower limit, the transmission toward the intended receiver is not performed. | 05-07-2015 |
20150181543 | METHOD AND TERMINAL FOR SYNCHRONIZING DOWNLINK - One disclosure of the present invention suggests a method for synchronizing a downlink. The method for synchronizing downlinks comprises the steps of: receiving from at least one cell, which belongs to a random group, a synchronization signal; synchronizing the downlink in accordance with the synchronization signal; and using the downlink synchronization, which is performed on the at least one cell, to synchronize the downlink with a target cell, when the target cell that belongs to the random group is converted from an off state to an on state, wherein the random group comprises geographically adjacent cells, and wherein the cells that are comprised in the random group can have mutually different cell IDs, but a portion of the synchronization signals can be identical. | 06-25-2015 |
20150200761 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA - Disclosed are a method and an apparatus for transmitting and receiving data. A method for transmitting an uplink comprises the steps of: a terminal determining the size of an ACK/NACK payload according to a transmission mode of a first serving cell and a transmission mode of a second serving cell; the terminal establishing a transmission power for transmitting the ACK/NACK payload based on the size of the ACK/NACK payload; and the terminal transmitting the ACK/NACK payload through a physical uplink control channel (PUCCH) based on the transmission power. | 07-16-2015 |
20150200762 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA - Disclosed are a method and an apparatus for transmitting and receiving data. A method for transmitting an uplink comprises the steps of: a terminal receiving first downlink data from a first cell through a first subframe; the terminal receiving second downlink data from a second cell through the first subframe; the terminal transmitting first uplink data, which is generated based on a first identifier of the first cell, as a reply to the first downlink data through a second subframe, and the terminal transmitting second uplink data, which is generated based on a second identifier of a second cell, as a reply to the second downlink data through the second subframe. | 07-16-2015 |
20150223235 | UPLINK TRANSMISSION METHOD AND UPLINK TRANSMISSION DEVICE - One embodiment of the present specification discloses an uplink transmission method in a multi-cell environment in which a single uplink resource is shared. The method may comprise: receiving control information that configures an uplink control channel and an uplink shared channel so that the uplink control channel and the uplink shared channel are not simultaneously transmitted on the same one uplink subframe, wherein the single uplink resource is shared by a first cell and a second cell; selecting any one of the uplink control channel and the uplink shared channel if a first Scheduling Request (SR) for the first cell and Uplink Control Information (UCI) for the second cell are requested to be simultaneously transmitted on the same subframe through the uplink control channel and the uplink shared channel, respectively; sending the selected channel on the uplink subframe. | 08-06-2015 |
20150230259 | METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION - A method and apparatus for performing interference cancellation is disclosed. The method includes receiving information about an interference configuration set related to characteristic of an interference signal, receiving an interference sequence signal indicating one interference configuration of the interference configuration set, and performing cancellation of the interference signal using the indicated interference configuration, wherein the interference sequence signal is received in at least a portion of a channel state information-interference measurement (CSI-IM) resource, and the interference sequence signal is received from an interference base station (BS) when the interference signal is scheduled to transmit and corresponds to the interference sequence signal. | 08-13-2015 |
20150295743 | METHOD AND USER EQUIPMENT FOR TRANSRECEIVING TDD - According to one embodiment of the present invention, suggested is a method for user equipment transreceiving a time division duplex. The method comprises the steps of: receiving from a cell first information on a downlink (DL)-uplink (UL) subframe configuration according to the TDD; receiving second information on whether to apply a third cyclic prefix (CP), which has a reduced length compared to a first CP and a second CP; and depending on the first information, determining whether to apply the third CP to the downlink subframe and the uplink subframe according to the second information. | 10-15-2015 |
20150304074 | METHOD AND APPARATUS FOR DETERMINING NUMBER OF HARQ PROCESSES IN WIRELESS COMMUNICATION SYSTEM - Provided are a method for determining the number of hybrid automatic repeat request (HARQ) processes in a carrier aggregated system configured with a plurality of serving cells, and an apparatus using such a method. The method receives data from a downlink subframe of a second serving cell, and transmits an ACK/NACK signal for the data from an uplink subframe of a first serving cell, wherein the first serving cell uses a first-type frame, the second serving cell uses a second-type frame, and the number of HARQ processes in the second serving cell are determined with respect to each subframe comprised in the second-type frame and on the basis of the number of downlink subframes comprised in each section comprising a set number of subframes. | 10-22-2015 |
20150304088 | METHOD AND APPARATUS FOR TRANSMITTING ACK/NACK IN WIRELESS COMMUNICATION SYSTEM - Provided are a method for transmitting an ACK/NACK by a terminal configured with a plurality of serving cells, and a terminal using such a method. The method comprises: receiving data from a downlink subframe of a first serving cell; and transmitting the data for the ACK/NACK signal from an uplink subframe of a second serving cell; wherein the uplink subframe is determined in accordance with the ACK/NACK timing of the first serving cell, or the ACK/NACK timing of the second serving cell if the data is received from a downlink subframe of the second serving cell, which is identical to the downlink subframe of the first serving cell. | 10-22-2015 |
20150304092 | METHOD AND APPARATUS FOR AGGREGATING PLURALITY OF CELLS - According to one embodiment of the present invention, there is provided a method for aggregating a plurality of cells. According to the method, a first cell may determine whether to add one or a plurality of second cells for user equipment. Here, a maximum number of cells are determined depending on a number of cells that belong to the first cell and the one or the plurality of second cells and whose reference configuration has been set as a specific Time Division Duplex (TDD) UL-DL configuration and a number of cells that have been actually set as the specific TDD UL-DL configuration. Also, the first cell may transmit a configuration for adding one or a plurality of second cells to the user equipment based on the determined maximum number of cells. | 10-22-2015 |
20150304925 | METHOD AND TERMINAL FOR APPLYING CHANGED SYSTEM INFORMATION - According to one disclosure of the present specification, a method for applying system information changed in a terminal is presented. The method for applying the changed system information includes the steps of: receiving an indicator providing notice of a change of a system information set from a cell; receiving information on the time when the change of system information is applied; when the indicator is received in subframe n, determining that the changed system information is applied after k periods based on the information from the n subframe. | 10-22-2015 |
20150319777 | METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - Provided are a method and an apparatus for transmitting downlink control information in a wireless communication system configured with a plurality of serving cells. The method generates downlink control information scheduling frequency division duplex (FDD) cells by means of FDD frames (DCI_FDD) and downlink control information scheduling time division duplex (TDD) cells by means of TDD frames (DCI_TDD), and transmits the DCI_FDD and the DCI_TDD, wherein parts of the fields of DCI_FDD and DCI_TDD are generated to have equal bit sizes, and if the FDD or TDD cell is used exclusively, then said parts of the fields in the FDD and TDD cells have mutually different bit sizes. | 11-05-2015 |
20150349936 | METHOD AND APPARATUS FOR PERFORMING HARQ IN CARRIER AGGREGATION SYSTEM - Provided are an apparatus and a method for executing an uplink hybrid automatic repeat request (HARQ) in a carrier aggregation system. The method transmits data to a base station from an uplink subframe of a second cell, and receives, from the base station, an acknowledgement/not-acknowledgement (ACK/NACK) or scheduling information for the data from a downlink subframe of a first cell, wherein if the timing relationship between the uplink subframe of the second cell and the downlink subframe of the first cell does not match the timing relationship for when the first cell is being used exclusively, then the scheduling information is received from the downlink subframe of the first cell. | 12-03-2015 |
20150350941 | METHOD FOR PERFORMING DISCOVERY SIGNAL MEASUREMENTS IN WIRELESS COMMUNICATION SYSTEM AND USER EQUIPMENT THEREOF - Disclosed is a method of performing a measurement in UE. A method for performing discovery signal measurements, the method performed by a user equipment (UE) and includes: receiving measurement configuration information including a sub-frame offset between a secondary synchronization signal (SSS) and a channel-state information reference signal (CSI-RS) in a discovery signal; setting configurations based on the measurement configuration information; and performing the discovery signal measurement based on the CSI-RS. | 12-03-2015 |
20150351003 | METHOD AND DEVICE FOR DETECTING DISCOVERY SIGNAL - A method and a device for detecting a discovery signal in a wireless communication system are provided. A wireless device receives a discovery setting for detecting a discovery signal of a target cell from a serving cell, and detects the discovery signal transmitted by the target cell according to the discovery setting. The discovery setting includes information on a discovery subframe to which the discovery signal is transmitted among a plurality of subframes. | 12-03-2015 |
20150359036 | COMMUNICATION METHOD AND DEVICE OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM - Provided are a communication method of a terminal in a wireless communication system and the terminal using the method. The method comprises: receiving a cell state signal from a small cell; and communicating with the small cell on the basis of the cell state signal, wherein the cell state signal includes information indicating the switching of the small cell to an off-state. | 12-10-2015 |
20150373628 | METHOD FOR DETECTING SMALL CELL ON BASIS OF DISCOVERY SIGNAL - According to one embodiment of the present invention, provided is a method by which a terminal detects a small cell. The small cell detection method can comprise the steps of: receiving, from a serving cell, information on discovery signals of one or a plurality neighboring small cells; and detecting a discovery signal from a small cell in an off state from the one or plurality of neighboring small cells on the basis of the information on the discovery signals. The information on the discovery signals can include information on whether the small cells independently set the discovery signals or identically set the discovery signals by cluster unit. | 12-24-2015 |
20160006529 | METHOD AND APPARATUS FOR PERFORMING INTERFERENCE COORDINATION IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing interference coordination in a wireless communication system is provided. A wireless device may transmit measurement results on neighboring cells; receive information of grouping of the neighboring cells based on the measurement results; and receive a signal to be applied with a different sub-band, a subframe shift, or a Orthogonal frequency division multiplexing (OFDM) symbol shift according to the information of grouping from each cell of the neighboring cells. | 01-07-2016 |
20160007310 | METHOD AND APPARATUS FOR PERFORMING SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing synchronization in a wireless communication system is provided. A wireless device receives information including a set of subframes in which a discovery signal or a synchronization signal is transmitted, and a muting pattern which is changed according to a downlink (DL)/uplink (UL) configuration of a corresponding cell; receives the discovery signal or the synchronization signal from a cell based on the information; and performs synchronization, wherein the information is indicated to cells via air interface from a source cell. | 01-07-2016 |
20160007324 | METHOD FOR ENABLING TERMINAL TO TRANSMIT AND RECEIVE SIGNAL IN WIRELESS COMMUNICATIONS SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method for enabling a terminal to transmit and receive a signal in a wireless communications system and an apparatus therefor. More specifically, the method includes the steps of: receiving physical downlink shared channel (PDSCH) data and reconfiguration downlink control information (DCI); and transmitting at least one of the information of ACK/NACK (acknowledgement/Negative Acknowledgement) for downlink data and the answer message corresponding to the reconfiguration downlink control information, characterized in that the answer message represents whether to succeed in receiving the reconfiguration downlink control information. | 01-07-2016 |
20160007406 | METHOD AND APPARATUS FOR PERFORMING INITIAL ACCESS PROCEDURE IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing an initial access procedure in a wireless communication system is provided. A wireless device detects a discontinuous transmission (DTX) cell that operates in a discontinuous transmission (DTX) state by receiving a discovery signal from the DTX cell; transmits an initial request message to the DTX cell to request the DTX cell to transition from the DTX state to a continuous transmission (TX) state. | 01-07-2016 |
20160029161 | METHOD AND APPARATUS FOR POSITION ESTIMATION IN WIRELESS COMMUNICATION - A method for receiving a reference signal for positioning in a wireless communication system by a user equipment (UE) is disclosed. The method includes receiving a plurality of reference signal sequences for positioning to which different frequency shift values are applied, calculating a correlation between the plurality of reference signal sequences for positioning and transmitted reference signal sequences for positioning corresponding to the plurality of reference signal sequences in a time domain, and determining a time domain index having a highest value from the correlation as a reference time point for positioning, wherein the frequency shift value is determined according to the sum of multiplication of an index of each reference signal sequence and a frequency shift interval, and frequency offset. | 01-28-2016 |
20160037491 | METHOD FOR RECEIVING CONTROL INFORMATION ON EPDCCH - In one embodiment of the present specification, provided is a method for receiving control information on an enhanced physical downlink control channel (EPDCCH). The method for receiving control information may comprise the steps of: receiving information associated with a pattern change of a demodulation reference signal (DMRS); identifying a time of changing mapping between an enhanced resource element group (EREG) and an enhanced control channel element (ECCE) for an EPDCCH, according to the pattern change of the DMRS; and receiving control information on the EPDCCH by applying the change of the mapping at the identified time. | 02-04-2016 |
20160050617 | METHOD FOR RECEIVING SEARCH SIGNAL FOR DETECTING SMALL-SIZED CELL - According to one embodiment of the present description, a method by which a terminal receives a search signal from a small-sized cell is provided. The method can comprise the steps of: receiving, from a serving cell, configuration set information of search signals of clustered neighboring small-sized cells for each cluster; determining configuration information of a search signal of each of the neighboring small-sized cells belonging to a corresponding cluster on the basis of the set information; and detecting a search signal from a corresponding small-sized cell on the basis of the determined configuration information. | 02-18-2016 |
20160050647 | RECEIVING METHOD AND USER DEVICE IN SMALL-SCALE CELL - According to one disclosure in the present specification, a receiving method for a user device in a small-scale cell is provided. The receiving method may include: a step of monitoring a plurality of candidate control channels within a search space for a serving cell; and a step of acquiring downlink control information (DCI) by decoding the plurality of candidate control channels. The DCI can include a resource block assignment field, and the resource block assignment field can include information about virtual system bandwidth in the downlink system bandwidth. The receiving method may include a step of receiving a data channel over multiple subframes, based on the virtual system bandwidth. | 02-18-2016 |
20160057664 | METHOD AND APPARATUS FOR CELL TO DISCOVER ANOTHER CELL - Disclosed are a method and an apparatus for a cell to discover another cell. A method for cell discovery by a discovering cell may comprises the step of: the discovering cell receiving first discovering resource configuration information from a master cell; and the discovering cell receiving a discovering signal from at least one discovering target cell on the basis of the first discovering resource configuration information, wherein the first discovering resource configuration information may comprise information indicating a first time resource for the discovering cell to receive a discovery signal by means of a first frequency band, and information indicating a second time resource for the discovering cell to transmit downlink data to a terminal by means of the first frequency band. | 02-25-2016 |
20160119856 | METHOD FOR TRANSMITTING REFERENCE SIGNAL - In one disclosure of the present specification, a method is provided for transmitting a reference signal in a small-sized cell. The method for transmitting the reference signal may comprise the steps of: generating, by the small-sized cell, a sequence of the reference signal, based on a physical cell ID and cell load degree; transmitting, by the small-sized cell, the generated sequence of the reference signal on a mapped resource element (RE); and transmitting, by the small-sized cell to a terminal during camp-on, information about the cell load degree used during the generation of the sequence of the reference signal. | 04-28-2016 |
20160142981 | METHOD AND APPARATUS FOR COVERAGE ENHANCEMENT - The present invention is method and apparatus for coverage enhancement. An embodiment of the present invention includes detecting a cell with primary synchronization signal (PSS) and/or secondary synchronization signal (SSS), detecting reference signal based on the detected synchronization signal, detecting broadcasting channel based on the detected reference signal and decoding master information block on the broadcasting channel, detecting system information block on a downlink data channel, transmitting random access preamble on random access channel based on a system information obtained from the system information block and receiving random access response corresponding to the random access preamble. | 05-19-2016 |
20160142984 | POWER HEADROOM REPORTING METHOD IN WIRELESS COMMUNICATION SYSTEM SUPPORTING CHANGE IN USE OF WIRELESS RESOURCE AND APPARATUS FOR SAME - The present invention proposes a power headroom reporting method and apparatus of a terminal in a wireless communication system supporting a change in use of wireless resources. More particularly, the method comprises the steps of: determining whether power headroom reporting is triggered; and transmitting power headroom reporting (PHR) information for first upper link wireless resource and second upper link wireless resource to a base station, wherein the first upper link wireless resource is configured to allow the use of the wireless resource to be dynamically changed and the second upper link wireless resource is configured to prevent the use of the wireless resources from being dynamically changed. | 05-19-2016 |
Patent application number | Description | Published |
20130174094 | GESTURE BASED UNLOCKING OF A MOBILE TERMINAL - A method, system, and device for controlling a mobile device with a touch screen are disclosed. According to one embodiment, the mobile terminal includes a touch screen and a controller configured to display a uniform image of a first enclosure and an unlock image of a second enclosure bounded by the uniform image of the first enclosure on the touch screen in response to detection of a contact on the touch screen while the mobile terminal is in a lock state. The controller is further configured to enlarge the unlock image of the second enclosure in accordance with movement of the contact away from an initial position of the contact while the contact on the touch screen is maintained, and to unlock the mobile terminal in response to a release of the contact when the unlock image of the second enclosure is enlarged to reach or exceed the uniform image of the first enclosure. | 07-04-2013 |
20140326987 | COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME AND ELECTRONIC DEVICE THEREOF - A compound represented by Formula 1. An organic electric element includes a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode. The organic material layer includes the compound represented by Formula 1. When the organic electric element includes the compound in the organic material layer, luminous efficiency, stability, and life span can be improved. | 11-06-2014 |
20140332793 | COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT COMPRISING THE SAME AND ELECTRONIC DEVICE THEREOF - A compound represented by Formula 1. An organic electric element includes a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode. The organic material layer includes the compound. When the organic electric element includes the compound in an organic material layer, luminous efficiency, stability, and life span can be improved. | 11-13-2014 |
20150053960 | COMPOUND CONTAINING A 5-MEMBERED HETEROCYCLE AND ORGANIC LIGHT-EMITTING DIODE USING SAME, AND TERMINAL FOR SAME - Disclosed are a novel-structural compound including a 5-membered heterocycle, an organic electronic device using the same, and a terminal thereof. | 02-26-2015 |
20150186710 | METHOD OF EXECUTING FUNCTION OF ELECTRONIC DEVICE AND ELECTRONIC DEVICE USING THE SAME - Methods and apparatuses are provided for executing a function of an electronic device using fingerprint verification. A security level of the function to be performed is acquired, if the function requires the fingerprint verification. A fingerprint input of a user is received. A count of a number of matching points that exist between the fingerprint input and a prestored fingerprint is determined. The count of the number of matching points is compared with a minimum number of matching points corresponding to the security level of the function. | 07-02-2015 |
20150199553 | METHOD FOR RECOGNIZING FINGERPRINT AND MOBILE TERMINAL SUPPORTING THE SAME - A method for recognizing a fingerprint in a portable terminal includes, if a touch input is sensed via a fingerprint scanning sensor, determining whether a touch input event is detected on an object displayed on a screen, deactivating a function corresponding to the detected touch input event on the object if the touch input event is sensed, and performing a function corresponding to the sensed touch input via the fingerprint scanning sensor. A portable terminal includes a display unit configured to display at least one object on a screen, a fingerprint scanning sensor configured to sense a touch input, and a processor configured to deactivate a function corresponding to the detected touch input event on the at least one object if the touch input is sensed, and to perform a function corresponding to the sensed touch event via the finger scanning sensor. | 07-16-2015 |
20150221873 | COMPOUND COMPRISING A FIVE-MEMBERED HETERO RING, AN ORGANIC ELECTRICAL ELEMENT USING SAME AND A TERMINAL THEREOF - A compound having a five-membered hetero ring, an organic electrical element using the same and a terminal thereof. An organic electric element includes a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode. The organic material layer includes the compound. When the organic electric element includes the compound in an organic material layer, luminous efficiency, stability, and life span can be improved. | 08-06-2015 |
Patent application number | Description | Published |
20130293454 | TERMINAL AND METHOD FOR CONTROLLING THE SAME BASED ON SPATIAL INTERACTION - A terminal and method for controlling the terminal using spatial gesture are provided. The terminal includes a sensing unit which detects a user gesture moving an object in a certain direction within proximity the terminal, a control unit which determines at least one of movement direction, movement speed, and movement distance of the user gesture and performs a control operation associated with a currently running application according to the determined at least one of movement direction, movement speed, and movement distance of the user gesture, and a display unit which displays an execution screen of the application under the control of the control unit. | 11-07-2013 |
20140019910 | TOUCH AND GESTURE INPUT-BASED CONTROL METHOD AND TERMINAL THEREFOR - A touch and gesture input-based control method for a mobile terminal or handheld display is provided for facilitating the switching operation between for an object in response to a gesture input subsequent to a touch input. The method includes detecting a touch input; selecting at least one object corresponding to the touch input; detecting a gesture input; and performing switching corresponding to the gesture input in a state where the object is held at a position of the touch input. The invention permits paging through lists of documents or icons, etc., while retaining the display of the held object on the touch screen. | 01-16-2014 |
20140240255 | METHOD FOR PROVIDING A FEEDBACK IN RESPONSE TO A USER INPUT AND A TERMINAL IMPLEMENTING THE SAME - A method and a terminal for providing a feedback in response to a user input related to a touch panel are provided. The method includes displaying an object on the screen, detecting a hovering of a touch input means with respect to the object, and providing a visual feedback corresponding to a distance between the object and the touch input means in response to the hovering. | 08-28-2014 |
20140240551 | APPARATUS AND METHOD FOR SYNTHESIZING AN IMAGE IN A PORTABLE TERMINAL EQUIPPED WITH A DUAL CAMERA - A method and an apparatus for processing an image in a portable terminal equipped with a dual camera are provided. The method includes selecting an image synthesis mode, performing a simultaneous or a sequential photographing of a front camera and a rear camera, obtaining a first image and a second image through the front camera and the rear camera, detecting an object image from one of the first image and the second image, and generating a synthesized image by synthesizing the object image to the other of the first image and the second image in which the object image was not detected. | 08-28-2014 |
20140245229 | METHOD AND APPARATUS FOR OPERATING OBJECT IN USER DEVICE - A method and an apparatus for operating an object in a user device having a touch screen are provided. The method includes displaying one or more objects on a screen, detecting a hovering input selecting the object, displaying the selected object distinguished from other object in response to the hovering input, detecting a touch contact input related to the object selected by the hovering input, and operating the object selected by the hovering input when the touch contact input satisfies a condition. | 08-28-2014 |
20140267025 | METHOD AND APPARATUS FOR OPERATING SENSORS OF USER DEVICE - A method of operating a plurality of sensors of a user device includes detecting input using a user input means, measuring a depth value between the user input means and a screen of the user device, activating a gesture recognition function by selectively driving one or more of the plurality of sensors based on the measured depth value, and recognizing a user gesture based on pieces of information collected by the selectively driven sensors. | 09-18-2014 |
20140282070 | OBJECT CONTROL METHOD AND APPARATUS OF USER DEVICE - An object control method and apparatus of the user device using hovering gestures are provided. The object control method includes displaying at least one object on a display screen, detecting a multi-finger hovering gesture for selecting the object on the display screen, activating a camera upon detection of the multi-finger hovering gesture, recognizing a hand in a picture input through the camera, and entering, when the hand disappears out of a viewing angle of the camera, a file transfer standby state for transmitting the selected object. | 09-18-2014 |
Patent application number | Description | Published |
20090022323 | SECRET KEY PREDISTRIBUTION METHOD - A secret key predistribution method is provided. The secret key predistribution method includes the steps of: performing a tree structure establishment process by causing a center to release a tree structure and causing sensor nodes to store the released tree structure; performing a seed key and hashed key generation process by causing the center to select a seed key and extract hashed keys by applying a hash function according to the tree structure; and performing a key predistribution process by causing the center to select key id sequences and causing the sensor nodes to store the selected sequences and corresponding hashed keys. Accordingly, the secret key distribution method can provide excellent resiliency and efficiency in terms of hash computational complexity. | 01-22-2009 |
20130336480 | LOW-POWER ENCRYPTION APPARATUS AND METHOD - An encryption apparatus and method that provide a mobile fast block cipher algorithm that supports low-power encryption. The encryption apparatus includes a user interface unit, a key scheduler unit, an initial conversion unit, a round function processing unit, and a final conversion unit. The user interface unit receives plain text to be encrypted and a master key. The key scheduler unit generates a round key from the master key. The initial conversion unit generates initial round function values from the plain text. The round function processing unit repeatedly processes a round function using the round key and the initial round function values. The final conversion unit generates ciphertext from the resulting values of the round function processed in a final round by the round function processing unit. | 12-19-2013 |
20140321645 | APPARATUS AND METHOD FOR CONVERTING RANDOM BINARY SEQUENCE INTO RANDOM INTEGER - An apparatus and method for converting a random binary sequence into a random integer is provided. The present invention converts a random binary sequence into a random integer, and determines whether the corresponding random integer falls within a preset integer interval. Further, if it is determined that the random integer generated from the random binary sequence does not fall within the preset integer interval, the present invention repeatedly updates a random binary sequence until a random integer falling within the corresponding integer interval is obtained, thus outputting uniformly distributed random integers which fall within the preset integer interval. | 10-30-2014 |
20140355755 | APPARATUS AND METHOD FOR PERFORMING COMPRESSION OPERATION IN HASH ALGORITHM - An apparatus and method for performing a compression operation in a fast message hash algorithm, which receive a 512-bit message and 512-bit chaining variable data, repeatedly calculate a 128-bit register-based step function, and then produce updated 512-bit chaining variable data. For this, the apparatus for performing a compression operation in a hash algorithm includes a message extension unit for receiving a message and generating a plurality of extended messages. A chaining variable initial conversion unit receives chaining variable data and converts the chaining variable data into initial state data. A step function operation unit repeatedly calculates a step function based on the initial state data and the plurality of extended messages and produces final state data. A chaining variable final conversion unit generates updated chaining variable data from the chaining variable data using the final state data, and outputs the updated chaining variable data. | 12-04-2014 |
20150032704 | APPARATUS AND METHOD FOR PERFORMING COMPRESSION OPERATION IN HASH ALGORITHM - An apparatus and method for performing a compression operation in a hash algorithm are provided. The apparatus includes an interface unit, a message extension unit, a chain variable initial conversion unit, a compression function computation unit, and a chain variable final conversion unit. The interface unit receives a message and chain variable data. The message extension unit generates a plurality of extended messages from the message. The chain variable initial conversion unit converts the chain variable data into initial state data for a compression function. The compression function computation unit repeatedly computes extended message binding and step functions based on the initial state data and the plurality of extended messages, and performs combination with a final extended message, thereby computing final state data. The chain variable final conversion unit generates and outputs chain variable data, into which the chain variable data has been updated, using the final state data. | 01-29-2015 |
20150244518 | VARIABLE-LENGTH BLOCK CIPHER APPARATUS AND METHOD CAPABLE OF FORMAT PRESERVING ENCRYPTION - A variable-length block cipher apparatus and method capable of format preserving encryption are provided. An encryption device for a variable-length block cipher apparatus includes an encryption key generation unit configured to generate encryption round keys eRK | 08-27-2015 |
20160056954 | APPARATUS AND METHOD FOR PROVIDING FEISTEL-BASED VARIABLE LENGTH BLOCK CIPHER - An apparatus and method for providing a Feistel-based variable length block cipher, which are configured to when plaintext having a certain bit length is encrypted, generate ciphertext having the same bit length as plaintext, and to decrypt ciphertext into plaintext having the same bit length. The apparatus includes an encryption/decryption key generation unit for generating a number of encryption/decryption keys corresponding to a preset number of rounds, based on a secret key, the length of the secret key, the length of plaintext, and a round constant; an encryption/decryption tweak generation unit for generating an encryption/decryption tweak based on a tweak, a length of tweak, and the length of plaintext; and a ciphertext output unit for outputting ciphertext having length identical to that of plaintext, based on plaintext, the length of the plaintext, the length of the secret key, the encryption/decryption keys, and the encryption/decryption tweak. | 02-25-2016 |
Patent application number | Description | Published |
20130099651 | DRAWER AND REFRIGERATOR INCLUDING THE SAME - A drawer of a refrigerator includes a basket extractable and retractable through the refrigerator while having a storage space surrounded by four wall surfaces. A first partition is slidably mounted to facing first and third ones of the wall surfaces, to move between facing second and fourth ones of the wall surfaces, a second partition is arranged to cross the first partition and is slidably mounted to the second and fourth wall surfaces, to move between the first and third wall surfaces. A moving guide disposed at an intersection between the first and second partitions, to guide movements of the first and second partitions. The drawer achieves an enhancement in utilization by virtue of the partitions capable of varying a partitioned size of the drawer. | 04-25-2013 |
20130104590 | REFRIGERATOR | 05-02-2013 |
20130119844 | REFRIGERATOR - A refrigerator is provided. The refrigerator may include a cabinet, a door rotatably coupled to the cabinet, and a plurality of baskets each coupled to an interior side of the door. Each basket may include upwardly inclined bottom surface such that an upper one of a pair of vertically-adjacent baskets does not interfere with the basket below it. | 05-16-2013 |
20130119845 | REFRIGERATOR - A refrigerator is provided. The refrigerator may include a moving basket installed in a storage case provided in a door or main body of the refrigerator. The moving basket may be vertically movable within the storage case. A height of the moving basket may be adjustable by an operation mechanism, to efficiently utilize an inner space of the storage assembly. | 05-16-2013 |
20130119846 | REFRIGERATOR - A refrigerator is provided. The refrigerator may include a basket to enhance utility of a storage space of a door of the refrigerator. The refrigerator may include a cabinet having a storage space formed therein, one side of which is open, a door rotatably coupled to the cabinet to open and close the open side of the storage space, a mounting frame coupled to an inner surface of the door, and a basket rotatably coupled to the mounting frame so as to be rotatable between a closed airtight position and an open position. A locking device may be provided at the mounting frame to lock or unlock the basket at the closed airtight position, and a rotation limiter may limit a maximum rotation angle of the basket when the basket is opened. | 05-16-2013 |
20130119847 | REFRIGERATOR - A refrigerator is provided. The refrigerator may include a refrigerator body with a storage space defined therein, a door frame rotatably coupled to the refrigerator body to open and close the storage space, a transparent molded body coupled to a front surface of the door frame, and a glass panel coupled to a front of the transparent molded body. The transparent molded body may include a three-dimensional pattern formed on a surface thereof, and the glass panel may include a two-dimensional pattern having a gradation in at least one of brightness, saturation and hue. | 05-16-2013 |
20130127322 | REFRIGERATOR - A refrigerator is provided. The refrigerator may include a barrier that partitions an interior of the refrigerator into a freezing compartment and a refrigerating compartment, a recess formed in the barrier and having a predetermined depth, and a cover for opening or closing a top of the recess. A seating step may be formed at a peripheral portion of the recess to receive a peripheral portion of the cover seated thereon. A guide groove may extend from the seating step to guide movement of the cover. Storage items may be stored in the recess independently of other food articles. | 05-23-2013 |
20130127323 | REFRIGERATOR - A refrigerator is provided. The refrigerator may include at least one first rail installed on a bottom surface of a storage compartment, and at least one corresponding second rail installed on a bottom of a drawer and engaged with the at least one first rail to slide the drawer into and out of the storage compartment. The at least one first rail may include a first roller for slidably supporting the at least one second rail, and the at least one second rail may include at least one second roller for slidably supporting the at least one first rail. | 05-23-2013 |
20130128494 | REFRIGERATOR - A refrigerator is provided. The refrigerator may include an inner case provided in an outer case, a recess formed in the inner and having a predetermined depth, a light source received in the recess, and a cover received in the recess and surrounding the light source. The light source may direct light toward a rear portion of the inner case to illuminate a corresponding compartment formed there. The cover may include an extension extending substantially in parallel to the inner case and received in the recess to prevent light emitted by the light source from being directed toward a front portion of the inner case. | 05-23-2013 |
20130277323 | SHELF AND REFRIGERATOR WITH THE SAME - A shelf and a refrigerator having such a shelf are provided. The shelf may include a support frame fixed to an inner surface of a storage compartment of the refrigerator, the support frame including body having a plurality of coupling holes formed along a longitudinal direction, spaced apart at predetermined intervals, and a cover coupled to the body to selectively open and close the plurality of the coupling holes. The cover may include a fixing portion for fixing the cover to the support frame body, and a plurality of opening/closing portions extending from the fixing portion, corresponding to the plurality of the coupling holes, to independently open and close the plurality of the coupling holes. One or more of the plurality of the opening/closing portions may be moved by the shelf plate to couple the shelf plate to the support frame. | 10-24-2013 |
20140117830 | REFRIGERATOR - A refrigerator is provided with an easily removable basket at an inside of a pull-out door. The refrigerator includes a pull-out door for opening or closing a storage chamber of the refrigerator, rail assemblies mounted in the storage chamber, a frame coupled to the pull-out door and mounted to the rail assemblies to be pulled out from the storage chamber while supported by the rail assemblies, and at least one basket seated on the frame, the basket including at least one handle to take the basket out from the frame. | 05-01-2014 |
Patent application number | Description | Published |
20120304683 | ICE MAKING TRAY AND REFRIGERATOR COMPRISING THE SAME - There is disclosed an ice making tray that is able to perform ice-making and ice-ejecting conveniently, especially, that has no concern of ice-making water sparkling when ice-making water is introduced and of ice escaping when ice is ejected, and a refrigerant including the same. The ice making tray includes a case to define an exterior appearance thereof, an ice making part provided in a lower portion of the case, the ice making part comprising ice making spaces partitioned by a plurality of partition walls to accommodate ice-making water, an ice accommodating part provided in an upper portion of the case to accommodate ice ejected to a top of the ice making part, and an opening formed in a predetermined side of the case to introduce the ice-making water into the case or to discharge the ejected ice, and the refrigerator includes the ice making tray. | 12-06-2012 |
20140117831 | REFRIGERATOR - A refrigerator includes a body having a storage chamber, a drawer slidably mounted in the storage chamber, the drawer having an opened top side, and a shelf slidably mounted in the storage chamber, to selectively close at least a portion of the open top side of the drawer. | 05-01-2014 |
20140252937 | REFRIGERATOR - Disclosed is a refrigerator including a main body, a storage chamber provided within the main body, a drawer assembly provided in the lower portion of the storage chamber, a cover shelf covering at least a part of the upper surface of the drawer assembly, a lower shelf disposed between the cover shelf and the sidewall of the storage chamber and provided with one side supported by the sidewall of the storage chamber so as to be pulled out and the other side supported by the upper surface of the drawer assembly so as to be pulled out, and an upper shelf disposed above the lower shelf and provided with one side supported by the sidewall of the storage chamber so as to be pulled out and the other side supported by a shelf frame mounted on the rear wall of the storage chamber so as to be pulled out. | 09-11-2014 |
20140300265 | REFRIGERATOR - A refrigerator is provided. The refrigerator may include a main body having a first storage compartment and a second storage compartment, a first door rotatably coupled to the main body to open and close the first storage compartment, a second door slidably coupled to the main body to open and close the second storage compartment, a receptacle received in the second storage compartment and coupled to the second door to move together with the second door, and a camera installed at the main body to take a picture of an interior of the receptacle. A controller may combine a plurality of pictures taken by the camera as the second door is moved, and may correct the images into an image showing the interior of the receptacle. | 10-09-2014 |
20150069900 | REFRIGERATOR - A refrigerator includes a cabinet, a main door, an auxiliary storage compartment provided to a rear surface of the main door, and a sub-door. The main door is rotatably connected to the cabinet, and the sub-door is rotatably connected to the main door. An access opening is provided in the main door to allow access to the auxiliary storage compartment. The refrigerator also includes a button exposed at a front surface of the sub-door to receive input provided by a user, a hook member having a pivot shaft mounted to its rear end, and a locking protrusion provided in a groove located on a front surface of the main door that can selectively couple to the hook member. The hook member protrudes backward from a rear surface of the sub-door and can rotate within the sub-door about the pivot shaft in response to receipt of user input at the button. | 03-12-2015 |
20150176886 | REFRIGERATOR - A refrigerator includes a cabinet that defines a first storage compartment configured to store food, a main door rotatably mounted on the cabinet and configured to open or close at least a portion of the first storage compartment, an accommodation device accessible through an opening in the main door, a sub door mounted on the main door and configured to open or close the opening, and a door opening assembly that is configured to selectively restrict one side of a back surface of the sub door to a corresponding side of a front surface of the main door to thereby selectively restrict movement of the sub door relative to the main door. The accommodation device defines a second storage compartment within the main door that is separated from the first storage compartment, and the door opening assembly is configured to be manipulated from a side surface of the sub door. | 06-25-2015 |
20150276293 | REFRIGERATOR AND METHOD FOR CONTROLLING THE SAME - A refrigerator includes a door, a dispenser in the door, a water nozzle and an ice nozzle on the dispenser, the ice nozzle being arranged in a line with the water nozzle, and a single manipulation member under the water nozzle and the ice nozzle that is manipulated in a same direction as the arranged direction of the water nozzle and the ice nozzle, the manipulation member allowing selection between dispensing of water and ice. The refrigerator also includes a detection member on the dispenser for recognizing a manipulation of the manipulation member, a control unit for controlling a valve and a motor to dispense either the water or ice based on an input of the detection member, and a display unit on the dispenser for displaying a selected state of the water or ice according to a manipulated state of the manipulation member. | 10-01-2015 |
20150300729 | REFRIGERATOR - A refrigerator includes a main body, a storage space defined within the main body, a door configured to open and close at least a portion of the storage space, a dispenser provided in the door and defining a space in which water is dispensed, a water nozzle extending downward into the space, where the water nozzle is movably mounted at the dispenser and configured to dispense water, a manipulation detection device provided at the dispenser, the manipulation detection device being configured to detect movement of the water nozzle, and a control unit configured to open and close a water supply valve connected to the water nozzle according to a detection signal generated by the manipulation detection device. | 10-22-2015 |
20160112679 | REFRIGERATOR - Disclosed is a refrigerator. The refrigerator includes a main body having a first storage compartment and a second storage compartment, in which food is stored, a first door configured to open the first storage compartment via pivotal rotation thereof, a second door configured to be moved forward of the second storage compartment to open the second storage compartment, a receptacle configured to be moved along with the second door and received in the second storage compartment, the receptacle serving to store food therein, and a camera installed to the main body to take a picture of the receptacle. The refrigerator further includes a control unit configured to combine a plurality of pictures taken by the camera as the second door is moved and configured to correct the images into an image showing the receptacle. | 04-21-2016 |