Patent application number | Description | Published |
20100051867 | NOVEL LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION COMPRISING THE SAME, AND OPTICAL FILM USING THE SAME LIQUID CRYSTAL COMPOSITION - Disclosed is a novel liquid crystal compound, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there is provided a liquid crystal material of a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition. | 03-04-2010 |
20100059712 | FLUORENE DERIVATIVE, LIQUID CRYSTAL COMPOSITION COMPRISING THE SAME, AND OPTICAL FILM USING THE SAME LIQUID CRYSTAL COMPOSITION - Disclosed are a novel fluorene derivative, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there are provided a liquid crystal material for a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio measured at an oblique angle to the front and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition. | 03-11-2010 |
20100078594 | BIAXIAL LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION COMPRISING THE SAME, AND OPTICAL FILM USING THE SAME LIQUID CRYSTAL COMPOSITION - Disclosed are a biaxial liquid crystal compound, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there is provided a liquid crystal material of a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition. | 04-01-2010 |
20100084608 | DISCOTIC LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION COMPRISING THE SAME AND OPTICAL FILM USING THE SAME LIQUID CRYSTAL COMPOSITION - Disclosed is a discotic liquid crystal compound, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there is provided a liquid crystal material of a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition. | 04-08-2010 |
20100096590 | NOVEL LIQUID CRYSTAL COMPOUND CONTAINING SULFONE GROUP, LIQUID CRYSTAL COMPOSITION COMPRISING THE SAME, AND OPTICAL FILM USING THE SAME LIQUID CRYSTAL COMPOSITION - Disclosed are a novel liquid crystal compound containing a sulfone group, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there are provided a liquid crystal material for a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio measured at a tilt angle to the front and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition. | 04-22-2010 |
20100155664 | LIQUID CRYSTAL COMPOSITION COMPRISING NOVEL SILICON CONTAINING COMPOUNDS AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - Disclosed are a silicon-containing compound, a liquid crystal composition comprising the same compound, and a liquid crystal display device comprising a liquid crystal layer prepared from the liquid crystal composition. The silicon-containing compound, which forms the liquid crystal composition, has low viscosity and high positive dielectric anisotropy. Therefore, it is possible to provide a liquid crystal display device, which has a fast response time and can be driven at a low voltage. | 06-24-2010 |
20110181826 | RADIAL-SHAPED LIQUID CRYSTAL COMPOUND, AND OPTICAL FILM AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING THE SAME - The present invention relates to a radial-shaped liquid crystal compound, and an optical film and a liquid crystal display device comprising the same. Particularly the present invention provides a compound represented by Chemical Formula 1 comprising a radial-shaped core of tetraphenyl ethylene in which four phenyl groups are bonded to an ethylene group, and makes it possible to provide an optical film which can minimize the change of color according to viewing angle and has an improved contrast ratio and high refractive anisotropy, and a liquid crystal display device comprising the same, by using the compound. | 07-28-2011 |
20110187971 | NOVEL GELLING AGENT, A LIQUID CRYSTAL GEL COMPRISING THE SAME, AND A LIQUID CRYSTAL DEVICE COMPRISING THE LIQUID CRYSTAL GEL - The present invention relates to a novel gelling agent comprising of a silane-amide chemical structure, a liquid crystal gel comprising the same and a liquid crystal device comprising said liquid crystal gel. | 08-04-2011 |
20140128555 | CURABLE COMPOSITION - Provided is a curable composition. The curable composition, which may provide an encapsulating material, of which processibility and workability before curing are effectively maintained and which has excellent light transmissivity, light extraction efficiency, hardness, crack resistance, adhesion strength and thermal shock resistance after curing, is provided. Further, the curable composition may show effectively controlled tackiness in the surface and may not show whitening under the high temperature or high humidity condition before or after curing. | 05-08-2014 |
Patent application number | Description | Published |
20120099664 | METHOD OF MULTIPLE FRAME TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM AND TRANSMITTER - A method for multiple frame transmission in a wireless communication system and a transmitter are provided. The transmitter transmits a request to send (RTS) frame to a receiver. The RTS frame has a first bandwidth. The transmitter receives a clear to send (CTS) frame as a response of the RTS frame from the receiver to establish a transmission opportunity (TXOP) indicating an interval of time when the transmitter has the right to transmit at least one data frame. The CTS frame has a second bandwidth. The transmitter transmits a plurality of data frames sequentially to the receiver during the TXOP. | 04-26-2012 |
20120106575 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM - Disclosed is an apparatus and method for transmitting/receiving data using a low-density parity check (LDPC) coding scheme in a communication system. The method includes generating a multi-user data packet containing data to be transmitted to a plurality of users, encoding the multi-user data packet as a BCC and an LDPC code, and transmitting the encoded multi-user data packet to the plurality of users. In the method, the encoding of the multi-user data packet encodes MPDU subframes corresponding to each of the plurality of users in the multi-user data packet as the LDPC code, and calculates information on a length in LDPC encoding, corresponding to the encoding of the multi-user data packet as the LDPC code. | 05-03-2012 |
20120314801 | TRANSMITTER AND METHOD FOR TRANSMITTING DATA BLOCK IN WIRELESS COMMUNICATION SYSTEM - Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: deciding the number of bits (s) and encoders (NES) to allocate to one axis of a signal constellation; encoding an information bit based on the s and the NES and generating a coded block; parsing the coded block based on the s and the NES and generating a plurality of frequency sub-blocks; and transmitting the plurality of frequency sub-blocks to a receiver. | 12-13-2012 |
20120314802 | TRANSMITTER AND METHOD FOR TRANSMITTING DATA BLOCK IN WIRELESS COMMUNICATION SYSTEM - Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: encoding an information bit and generating a block coded with an NCBPSS bit; generating two sub-blocks by parsing the coded block; and transmitting the two sub-blocks to the transmitter. By preventing the bits that are contiguous to the encoding block from having continuous identical reliabilities on a signal constellation, the deterioration of the decoding performance of the transmitter can be prevented. | 12-13-2012 |
20130136075 | Apparatus and method for transmitting/receiving data in communication system - A data transmission apparatus in a communication system includes a verification unit configured to verify a basic frequency band capable of being used for transmitting and receiving data to and from a plurality of terminals, and a multi-bandwidth mode in the basic frequency band; a generation unit configured to generate data packets in the multi-bandwidth mode; and a transmission unit configured to transmit the data packets in the multi-bandwidth mode, wherein the multi-bandwidth mode includes a ½× bandwidth of the basic frequency band, a basic bandwidth, a 2× bandwidth of the basic frequency band, a 4× bandwidth of the basic frequency band and an 8× bandwidth of the basic frequency band. | 05-30-2013 |
20130136097 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM - A data transmission apparatus in a communication system includes a reception unit configured to receive adjacent terminal information from a plurality of terminals through a new frequency band for transmission and reception of data between the terminals and one AP (access point); a verification unit configured to identify positions of the terminals within a service coverage of the AP through the adjacent terminal information, group the terminals into terminal groups through position-based grouping, and verify transmission possible times to the AP, in terminals included in the terminal groups; and a transmission unit configured to transmit the transmission possible times to the terminals included in the terminal groups through beacon frames in the AP, wherein, as the transmission possible times for the terminal groups, different time intervals are allocated in a beacon interval of the beacon frames. | 05-30-2013 |
20130136207 | TRANSMITTER AND METHOD FOR TRANSMITTING DATA BLOCK IN WIRELESS COMMUNICATION SYSTEM - Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: encoding an information bit and generating a block coded with an NCBPSS bit; generating two sub-blocks by parsing the coded block; and transmitting the two sub-blocks to the transmitter. By preventing the bits that are contiguous to the encoding block from having continuous identical reliabilities on a signal constellation, the deterioration of the decoding performance of the transmitter can be prevented. | 05-30-2013 |
20130159458 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM - A data transmission apparatus in a communication system includes a reception unit configured to receive terminal information from a plurality of terminals through a new frequency band for transmitting and receiving data between the plurality of terminals and one AP (access point); a verification unit configured to verify the terminal information, group the terminals into terminal groups by using the terminal information, and verify virtual APs which respectively correspond to the terminal groups, in the AP; and a transmission unit configured to transmit beacon frames in the virtual APs, to the terminals included in the terminal groups, wherein the beacon frames include beacon interval information, beacon duration information, beacon offset information, and terminal group information. | 06-20-2013 |
20130176986 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM - A data transmission apparatus in a communication system includes a reception unit configured to receive terminal information from a plurality of terminals through a new frequency band for transmission and reception of data between the plurality of terminals and an AP (access point); a determination unit configured to determine access timing of the terminals to the AP by using the terminal information, and generate terminal access information including information on the access timing; and a transmission unit configured to transmit the terminal access information and beacon frames to the terminals, wherein the terminals access the AP and transmit data frames to the AP, at the access timing based on the beacon frames. | 07-11-2013 |
20130177096 | METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A MIMO SYSTEM - The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal. | 07-11-2013 |
20130188506 | APPARATUS AND METHOD FOR ALLOCATING CHANNEL IN COMMUNICATION SYSTEM - A channel allocation apparatus in a communication system includes: a measuring unit configured to measure clear channel assessments (CCA) of a plurality of stations (STAs) included in the communication system; a checking unit configured to compare the measured CCAs to preset reference CCA, and check fairness and unfairness in the STAs; and an allocating unit configured to change and allocate channels allocated to STAs corresponding to unfairness, according to the measured CCA and the reference CCA. | 07-25-2013 |
20130188571 | APPARATUS AND METHOD FOR ALLOCATING CHANNEL IN COMMUNICATION SYSTEM - A channel allocation apparatus in a communication system includes: a receiving unit configured to receive terminal information containing transmission mode information of a plurality of stations (STAs) from the STAs; a checking unit configured to check transmission modes of the STAs and check a frequency band available for the STAs; an allocating unit configured to allocate channels of an allocable frequency band in the available frequency band to the STAs, according to the transmission modes of the STAs; and a transmitting unit configured to transmit channel allocation information on the channels allocated to the STAs to the STAs. | 07-25-2013 |
20130188572 | APPARATUS AND METHOD FOR ALLOCATING RESOURCE IN COMMUNICATION SYSTEM - A resource allocation apparatus in a communication system includes an identification unit configured to identify a new frequency band for transmission and reception of data between a plurality of terminals and a first access point, and identify a first frequency band which is being used by a second access point in the new frequency band; a setting unit configured to divide the new frequency band into sub bands of a basic frequency band, and set priorities of the sub bands; and an allocation unit configured to allocate the sub bands in correspondence to the priorities, for transmission and reception of data between the plurality of terminals and the first access point. | 07-25-2013 |
20130188628 | METHOD AND APPARATUS OF SCANNING IN WIRELESS LOCAL AREA NETWORK SYSTEM - A scanning method in a wireless local area network (WLAN) system is provided. The scanning method includes transmitting by a station a probe request frame via a channel, and receiving by the station a probe response frame from a target access point (AP) to respond to the probe request frame. The probe request frame includes at least one of information regarding a response reception time and preference information regarding the target AP. | 07-25-2013 |
20130188747 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING DATA IN COMMUNICATION SYSTEM - An apparatus for transmitting data in a communication system includes: a receiving unit configured to receive feedback information for each of a plurality of stations (STAB) in response to a control frame; an adjusting unit configured to adjust links of the STAB at frequency channels based on the feedback information, and set optimal links for the respective STAB; and a transmitting unit configured to transmit data to the STAB through the optimal links, wherein the feedback information comprises one or more of optimal stream number information, optimal modulation and coding scheme (MCS) information, optimal bandwidth information, average signal-to-noise ratio (SNR) information, space-time information, optimal space-time block coding (STBC) information, group ID information, coding type information, and FB Tx type information. | 07-25-2013 |
20130315219 | APPARATUS AND METHOD OF INDICATING BANDWIDTH IN WIRELESS COMMUNICATION SYSTEM - The phase rotation relates to an apparatus and method of indicating a bandwidth in a wireless communication system. This disclosure discloses a wireless device comprising a transmission transmitting and receiving a wireless signal and a processor operating in operative connection with the transmission, wherein the processor generates a PPDU (physical protocol data unit) to which a phase rotation application is selectively applied depending on a case of bandwidth indication or a case of no bandwidth indication. | 11-28-2013 |
20140004873 | ACCESS POINT APPARATUS FOR CONFIGURING NEXT GENERATION WIRELESS COMMUNICATION NETWORK AND METHOD OF OPERATING THE ACCESS POINT APPARATUS | 01-02-2014 |
20140037025 | TRANSMITTER AND METHOD FOR TRANSMITTING DATA BLOCK IN WIRELESS COMMUNICATION SYSTEM - Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: encoding an information bit and generating a block coded with an NCBPSS bit; generating two sub-blocks by parsing the coded block; and transmitting the two sub-blocks to the transmitter. By preventing the bits that are contiguous to the encoding block from having continuous identical reliabilities on a signal constellation, the deterioration of the decoding performance of the transmitter can be prevented. | 02-06-2014 |
20140119303 | OPERATING METHOD OF ACCESS POINT (AP) AND STATION FOR COEXISTENCE OF BASIC SERVICE SETS HAVING DIFFERENT BANDWIDTHS - An operating method of an access point (AP) for a coexistence of basic service sets (BSSs) having different bandwidths includes detecting at least one of a first signal having a channel bandwidth of the AP and a second signal having a channel bandwidth narrower than the channel bandwidth of the AP, establishing a BSS having the channel bandwidth of the AP, based on a result of the detecting, and reporting the establishment of the BSS to an adjacent BSS. | 05-01-2014 |
20140169387 | METHOD AND COMMUNICATION APPARATUS FOR TRANSMITTING GROUP FRAME, AND METHOD AND USER TERMINAL FOR RECEIVING GROUP FRAME - A communication apparatus and method for transmitting a group frame, and a user terminal and method for receiving a group frame are provided. The communication apparatus may transmit a group frame to each of a plurality of user terminals. The group frame may be generated by grouping, in a physical layer, frames that are respectively transmitted to the plurality of user terminals. | 06-19-2014 |
20140177605 | METHOD FOR TRANSMISSION SCHEDULING BY GROUPING STATIONS - Provided is a transmission scheduling method based on station grouping, including performing physical grouping on stations into sectors based on positions of the stations, performing logical grouping of each physical group into logical groups based on a common characteristic of the stations in each physical group, transmitting, to the stations, access scheduling information used to enable each logical group to access an access point at different time intervals, and controlling a station access based on the access scheduling information. | 06-26-2014 |
20140219225 | TRANSMITTER AND METHOD FOR TRANSMITTING DATA BLOCK IN WIRELESS COMMUNICATION SYSTEM - Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: deciding the number of bits (s) and encoders (NES) to allocate to one axis of a signal constellation; encoding an information bit based on the s and the NES and generating a coded block; parsing the coded block based on the s and the NES and generating a plurality of frequency sub-blocks; and transmitting the plurality of frequency sub-blocks to a receiver. | 08-07-2014 |
20140242998 | TERMINAL AND BASE STATION IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE HIERARCHICAL CELLS AND COMMUNICATION METHOD OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE HIERARCHICAL CELLS - Disclosed are handover and connection of a terminal and control of connection of a terminal by a base station in a communication environment including a plurality of communication cells having different ranges of communication coverage. According to an exemplary embodiment, a terminal of a wireless communication system including a plurality of hierarchical cells determines whether the terminal accesses a microcell in a macrocell as the terminal moves based on whether a control signal transmitted from a micro-base station managing the microcell is detected in a communication environment including a plurality of hierarchical cells divided according to communication coverage, determines whether the terminal connects to the microcell based on a connection criteria for the microcell, and connects to the microcell when the connection criteria for the microcell are satisfied and conducts communications using the macrocell when the connection criteria for the microcell are not satisfied. | 08-28-2014 |
20140293911 | METHOD OF SHARING CHANNEL INFORMATION IN WIRELESS LOCAL AREA NETWORK (WLAN) SYSTEM - Provided is a method of sharing channel information performed by an access point (AP), the method including setting a master AP among adjacent APs, adjusting time stamp information on a point in time for communication based on a beacon received from the adjacent APs, estimating a carrier frequency offset (CFO) using a packet received from the master AP, and readjusting the time stamp information based on the estimated CFO. | 10-02-2014 |
20140294109 | METHOD AND APPARATUS FOR OPPORTUNISTIC INTERFERENCE ALIGNMENT (OIA) IN SINGLE-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (SU-MIMO) TRANSMISSION - A method and apparatus for opportunistic interference alignment (OIA) in single-user multiple-input multiple-output (SU-MIMO) transmission, the method including selecting an interference space, broadcasting information on the selected interference space, selecting a user terminal to be assigned a transmission opportunity for each subchannel based on leakage of interference (LIF) information when a request to send (RTS) message including the LIF information is received from at least one user terminal, and transmitting data to the selected user terminal. | 10-02-2014 |
20140294110 | METHOD AND APPARATUS FOR OPPORTUNISTIC INTERFERENCE ALIGNMENT (OIA) IN MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (MU-MIMO) TRANSMISSION - A method and apparatus for opportunistic interference alignment (OIA) in multi-user multiple-input multiple-output (MU-MIMO) transmission, the method including broadcasting a random beam, receiving, from a terminal, feedback information determined based on the random beam, selecting at least one terminal to which data is to be transmitted from among terminals based on the feedback information, adjusting a transmission power based on the feedback information, and transmitting data to the selected at least one terminal based on the adjusted transmission power. | 10-02-2014 |
20140301294 | METHOD FOR DIRECT COMMUNICATION BETWEEN STATIONS IN WIRELESS LOCAL AREA SYSTEM - Disclosed is a method for direct communication between stations. The method for direct communication between stations may include: receiving scheduling information on a frequency selective transmission (FST) from an access point; setting up a link for communication with another station based on the scheduling information; and communicating with the other station using the link. | 10-09-2014 |
20140334476 | METHOD FOR TRANSMITTING DATA FRAME IN WIRELESS LOCAL AREA NETWORK AND APPARATUS FOR THE SAME - A wireless device of transmitting a data frame in a WLAN is provided. The wireless device includes: a MAC unit generating a data frame; a PHY unit transmitting a wireless signal of the data frame; and a processor being operably coupled to the MAC unit and the PHY unit and controlling a set of TXVECTOR parameters. The processor is configured for: generating the data frame, the data frame including a data field having a service field and a very high throughput signal information (VHT-SIG-B); and transmitting a wireless signal of the data frame via a operating channel bandwidth. The data field is scrambled with a scrambling sequence, the scrambling sequence is generated based on a initial scrambling sequence and a generator polynomial. The service field is determined based on the set of TXVECTOR parameters, the TXVECTOR parameters including an control information for the service field. | 11-13-2014 |
20150098459 | SCANNING METHOD IN WIRELESS LAN SYSTEM AND SUPPORTING DEVICE THEREFOR - A scanning method performed by a station (STA) in a wireless LAN system is provided. The method comprises: transmitting a probe request frame; and receiving a short probe response frame from an access point (AP) as a response to the probe request frame. The short probe response frame includes service set ID (SSID) information or compressed SSID information of the AP. | 04-09-2015 |
20150131570 | METHOD AND TERMINAL FOR REQUESTING AND ACQUIRING INFORMATION RELATING TO CHANNEL ACCESS IN WIRELESS LAN, AND APPARATUS FOR PROVIDING INFORMATION RELATING TO CHANNEL ACCESS IN WIRELESS LAN - Provided are a terminal for requesting and acquiring information associated with a channel access in a wireless local area network (WLAN) and an apparatus for providing information associated with a channel access in a WLAN, and more particularly, the terminal for requesting and acquiring information associated with a channel access in a WLAN according to an example embodiment may verify whether a beacon is received during a predetermined beacon interval, transmit a group and slot information request signal when the beacon is verified not to be received, and receive a group and slot information response signal in response to the group and slot information request signal. | 05-14-2015 |
20150146598 | APPARATUS AND METHOD FOR PERFORMING VIRTUAL HIBERNATION DURING IDLE PERIOD IN WIRELESS LAN SYSTEM, AND TERMINAL DURING IDLE PERIOD OF WIRELESS LAN SYSTEM TERMINAL - Provided is technology for reducing power consumption of a terminal using hibernation of an access point (AP) managing a network in a wireless local area network (WLAN) environment, and an apparatus for performing hibernation during a rest time during which effective data traffic does not occur in a WLAN system according to an example embodiment, the apparatus may transmit a hibernation message indicating not to respond to a request of terminals during a predetermined period, determine a scheme of performing hibernation and whether to maintain an association between terminals associated before the hibernation is performed, and receive, after the predetermined period of the hibernation, effective data from the terminals. | 05-28-2015 |
20150156771 | COMMUNICATION METHOD AND COMMUNICATION DEVICE FOR SUPPORTING A PLURALITY OF BASIC BANDWIDTH MODES IN WIRELESS LAN SYSTEM THAT SUPPORTS MULTIPLE BANDWIDTHS - Provided is an apparatus and method for supporting a plurality of basic bandwidth modes in a wireless local area network (WLAN) system supporting a multi-bandwidth, wherein a communication method of an access point (AP) in a WLAN system includes verifying an operational status of a network by an AP included in the network supporting a first bandwidth and a second bandwidth two times greater than the first bandwidth, allocating a first time slot in which a transmission of a frame with at least the first bandwidth is allowed, based on the operational status of the network, and allocating a second time slot in which a transmission of a frame with at least the second bandwidth is allowed, based on the operational status of the network. | 06-04-2015 |
20150156788 | COMMUNICATION METHOD AND COMMUNICATION DEVICE USING OPEN-LOOP LINK IN WIRELESS LAN SYSTEM THAT SUPPORTS MULTI-BANDWIDTH - A communication method and a communication apparatus using an open-loop link in a wireless local area network (WLAN) system supporting a multi-bandwidth are disclosed. A communication method using an open-loop link according to an exemplary embodiment includes a transmission apparatus of a WLAN system to support a multi-bandwidth, receiving link margin information on each of a plurality of bandwidths from a reception apparatus, acquiring a margin for a signal-to-noise ratio (SNR) based on the link margin information and determining a modulation and coding scheme (MCS) and a bandwidth for use based on the margin for the SNR, and transmitting data to the reception apparatus using the determined MCS and bandwidth. | 06-04-2015 |
20150156794 | METHODS FOR CHANNEL SOUNDING AND SCHEDULING FOR INTERFERENCE ALIGNMENT IN WIRELESS LOCAL AREA NETWORK - Provided are channel sounding and scheduling methods for interference alignment in a wireless LAN. The sounding method includes transmitting a RTS frame, the RTS frame including an OIA candidate AP list that includes identification information of a plurality of access points, transmitting a CTS-pole frame for triggering transmission of a CTS frame to a second access point which is a first access point in the OIA candidate AP list, and receiving a CTS frame which is a response to the CTS-pole frame from the second access point. Therefore, communication performance of the wireless LAN can be improved. | 06-04-2015 |
20150163043 | METHOD AND APPARATUS FOR ALLOCATING CHANNEL IN WIRELESS LOCAL AREA NETWORK - A method and apparatus for allocating a channel in a wireless local area network (WLAN) is disclosed. The method includes receiving a first frame including scheduling information with respect to a first interval from a second access point, generating a second frame including resource related information required for transmission and reception during a second interval which is continuous to the first interval, and transmitting the second frame to the second access point. Accordingly, performance of the WLAN can be improved. | 06-11-2015 |
20150163769 | METHOD AND SYSTEM FOR MANAGING CHANNEL IN WIRELESS LOCAL AREA NETWORK - A method and system for managing a channel in a wireless local area network is disclosed. The method includes detecting adjacent access points, transmitting a resource allocation request frame including candidate channel information which the first access points wants to a master access point among the detected adjacent access points, receiving a resource allocation response frame which is a response with respect to the resource allocation request frame from the master access point, and configuring the BSS based on channel related information included in the resource allocation response frame. Accordingly, performance of the wireless local area network can be improved. | 06-11-2015 |
20150181521 | APPARATUS AND METHOD FOR CONTROLLING TRANSMISSION SCHEDULE FOR BUFFERED DATA IN WIRELESS LAN, AND TERMINAL FOR RECEIVING BUFFERED DATA BASED ON TRANSMISSION SCHEDULE IN WIRELESS LAN - Disclosed is a technology that enables an access point, configured to manage a network, to control a transmission schedule of buffered data and enables a terminal to obtain information associated with the transmission schedule in a wireless local area network (WLAN) environment. An apparatus for controlling a transmission schedule of buffered data in a WLAN according to an embodiment may group terminals based on at least one of a service characteristic and a traffic characteristic of each of the terminals, assign group information to each of the grouped groups to wake up in a different time, and transmit at least one of delivery traffic indication map (DTIM) information and the buffered data based on the assigned group information. | 06-25-2015 |
20150195115 | OFDM TRANSMISSION METHOD AND DEVICE IN WIRELESS LAN SYSTEM - An apparatus and method for orthogonal frequency division multiplexing (OFDM) transmission in a wireless local area network (WLAN) system is disclosed, in which the apparatus for OFDM transmission in the WLAN system includes a signal repetition unit to repeat an encoded signal based on a block unit and output the encoded signal and a repeated signal, an interleaver to interleave the encoded signal and the repeated signal and output an interleaved signal, a modulator to modulate the interleaved signal and output modulated symbols, and a phase rotation unit to phase shift the modulated symbols. | 07-09-2015 |
20150208439 | APPARATUS AND METHOD FOR CHANNEL ACCESS - A channel access method and apparatus are disclosed. The channel access method by an access point (AP) having a sector antenna in a wireless local access network (WLAN), may include transmitting a sector beacon with respect to any one sector among a plurality of sectors, transmitting and receiving data with at least one station in any one sector during a pre-scheduled sector interval, sequentially performing transmission of the sector beacon and transmission and reception of the data with respect to remaining sectors of the plurality of sectors excluding the any one sector, transmitting an omni beacon with respect to all of the plurality of sectors, and transmitting and receiving data with respect to at least one station of the plurality of sectors during a pre-scheduled Basic Service Set (BSS) interval. | 07-23-2015 |
20150222339 | METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A MIMO SYSTEM - The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal. | 08-06-2015 |
20150230256 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM - A data transmission apparatus in a communication system includes a reception unit configured to receive terminal information from a plurality of terminals through a new frequency band for transmission and reception of data between the plurality of terminals and an AP (access point); a determination unit configured to determine access timing of the terminals to the AP by using the terminal information, and generate terminal access information including information on the access timing; and a transmission unit configured to transmit the terminal access information and beacon frames to the terminals, wherein the terminals access the AP and transmit data frames to the AP, at the access timing based on the beacon frames. | 08-13-2015 |
20150245377 | METHOD AND APPARATUS FOR DISCOVERY OF SECTOR IN WIRELESS LOCAL AREA NETWORK SYSTEM - Provided is a sector discovery apparatus and method, the method including setting, by an AP in a WLAN system, an omni-beacon interval for transmitting an omnidirectional beacon and sector beacon intervals for transmitting a sector beacon with respect to one of a plurality of sectors which are spatially divided, transmitting the sector beacon to a current sector among the plurality of sectors, transmitting, to the current sector, a transmission frame indicating sectorized transmission or a transmission frame indicating omnidirectional transmission, in a sector interval between the sector beacon intervals, and receiving, from a terminal located in the current sector, a response frame indicating an association performed by receiving the transmission frame indicating the sectorized transmission. | 08-27-2015 |
Patent application number | Description | Published |
20090168891 | METHOD FOR CONTROLLING VIDEO ENCODING BIT RATE BASED ON TRANSPORT PACKET LENGTH, AND APPARATUS FOR CODING VIDEO USING THE SAME - Provided is a video encoding rate controlling method based on the length of a Transport Stream (TS) packet in a video coding apparatus, the method including the steps of: a) setting up an initial target bit quantity for a picture to be coded; b) calculating a length of a payload used to packetize a coded picture into TS packets; c) adjusting the target bit quantity based on the length of the payload; and d) controlling a rate based on the adjusted target bit quantity in the step c). | 07-02-2009 |
20100278234 | APPARATUS FOR CODING OR DECODING INTRA IMAGE BASED ON LINE INFORMATION OF REFERENCE IMAGE BLOCK - An apparatus for coding an image which may effectively code the image and an apparatus for decoding an image which may decode the effectively coded image. The apparatus for coding the image includes: an input image segmentation unit to segment an input image into a plurality of image blocks including a first image block and a second image block; a waveform information generation unit to select a plurality of reference pixels from among pixels included in the first image block, generate first waveform information about the first image block based on a pixel value difference between the selected plurality of reference pixels, and generate second waveform information about the second image block based on a pixel value difference between the pixels included in the second image block; and coding unit to code an image included in the second image block based on the first waveform information and second waveform information. | 11-04-2010 |
20100329347 | METHOD AND APPARATUS FOR ENCODING AND DECODING VIDEO SIGNAL USING MOTION COMPENSATION BASED ON AFFINE TRANSFORMATION - A video encoding method and apparatus are provided. The video encoding method includes determining whether a current block includes an affine-transformation object having an affine transformation; if the current block includes an affine-transformation object, generating a prediction block by performing affine transformation-based motion compensation on the current block in consideration of an affine transformation of the affine-transformation object; and if the current block does not include any affine-transformation object, generating a prediction block by performing motion vector-based motion compensation on the current block using a motion vector of the current block. Therefore, it is possible to achieve high video encoding/decoding efficiency even when a block to be encoded or decoded includes an affine transformation. | 12-30-2010 |
20110149031 | STEREOSCOPIC IMAGE, MULTI-VIEW IMAGE, AND DEPTH IMAGE ACQUISITION APPARATUS AND CONTROL METHOD THEREOF - Provided is a camera apparatus, including: a camera unit including at least two cameras to acquire a stereoscopic image; a camera control unit to adjust a view angle of the at least two cameras and an interval between the at least two cameras; a depth information obtainment unit to obtain depth information from the stereoscopic image; and an intermediate image generator to generate an intermediate image based on the stereoscopic image and the depth information. | 06-23-2011 |
20110149153 | APPARATUS AND METHOD FOR DTV CLOSED-CAPTIONING PROCESSING IN BROADCASTING AND COMMUNICATION SYSTEM - An apparatus for extracting and creating a closed caption of a DTV stream in broadcasting and communication system, the apparatus comprising: a demultiplexer to receive the stream and demultiplex the received stream into additional information and a video stream; a decoder to receive and decode the video stream; an ST converter to receive PTS information, and convert PTS information into synchronization time information; a storage unit to store the demultiplexed additional information; an analyzer to receive the additional information and analyze CSD information; a closed caption extractor to receive the decoded data and the CSD information, and extract closed caption data; a closed caption file creator to create a closed caption file; a closed caption data processing unit to construct a segment-by-segment closed caption stream; a segmentation unit to construct a segment-by-segment stream; and a keyword search unit to provide the segment-by-segment stream corresponding to the keyword. | 06-23-2011 |
20110150321 | METHOD AND APPARATUS FOR EDITING DEPTH IMAGE - Provided is a method of editing a depth image, comprising: receiving a selection on a depth image frame to be edited and a color image corresponding to the depth image frame; receiving a selection on an interest object in the color image; extracting boundary information of the interest object; and correcting a depth value of the depth image frame using the boundary information of the interest object. | 06-23-2011 |
20110234769 | APPARATUS AND METHOD FOR DISPLAYING IMAGES IN IMAGE SYSTEM - An apparatus for displaying images in an image system includes: an encoder configured to encode color and depth images of at least one view received from a plurality of imaging devices and generate a reference image by synthesizing the encoded depth image of a current view and the encoded color and depth images before and after the current view based on a predetermined method; a decoder configured to decode a color image of the current view by using the generated reference image and decode the encoded color and depth images of at least one view; and a splitter configured to divide and split, based on each view, the decoded color and depth images of at least one view. | 09-29-2011 |
20110261254 | APPARATUS AND METHOD FOR CONTROLLING CONVERSION OF BROADCASTING PROGRAM BASED ON PROGRAM PROTECTION INFORMATION - Provided are an apparatus and method for controlling program conversion according to program protection information. The method for controlling conversion of a broadcasting program includes: demultiplexing a broadcasting program into broadcasting program data and program protection information; encrypting the broadcasting program data based on distribution condition of the program protection information when recordation of the broadcasting program data is requested; and recording the encrypted broadcasting program data. | 10-27-2011 |
20120062698 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM - Disclosed is an apparatus and method for transmitting/receiving reference image data and 3D additional image data in 3D image data so as to provide a 3D image in a digital broadcasting system. In the method, a basic image and a 3D additional image in a 3D image of a 3D broadcasting service is processed in a stereoscopic image format of one of a side-by-side method and a top-down method. The basic image and the 3D additional image processed in the stereoscopic image format are encoded to a basic image stream and a 3D additional image stream. The encoded basic image stream and the encoded 3D additional image stream are multiplexed to a 3D image stream of a single stream using a dual stream method, and the multiplexed 3D image stream is then transmitted. | 03-15-2012 |
20120212578 | METHOD AND APPARATUS OF CODING STEREOSCOPIC VIDEO - Disclosed are a method and an apparatus for coding a stereoscopic video. The method of coding a stereoscopic video includes coding an original reference image; performing preprocessing based on the original reference image, a decoded reference image, and an original additional image; coding the original addition image based on the original additional image and an improved decoding image obtained by performing the preprocessing; and performing postprocessing based on the original additional image and a decoded additional image. | 08-23-2012 |
20120274741 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING STEREOSCOPIC VIDEO - A method of receiving stereoscopic video according to the present invention includes receiving a bit stream including image information, extracting a base image stream corresponding to a base image and an additional image stream corresponding to an additional image from the bit stream, generating the base image and the additional image by decoding the base image stream and the additional image stream, respectively, and generating a left image and a right image by using at least one of the base image and the additional image. According to the present invention, | 11-01-2012 |
20130271568 | TRANSMITTING SYSTEM AND RECEIVING APPARATUS FOR PROVIDING HYBRID SERVICE, AND SERVICE PROVIDING METHOD THEREOF - A receiving apparatus includes a first receiving unit that receives a first signal comprising an information descriptor to describe service characteristics, reference data, and additional data reference information through a RF communication network; a second receiving unit that can be connected to an IP network; a demux unit that detects the information descriptor from the first signal; a first signal processing unit that processes the reference data; a control unit that, if it is determined as a hybrid service depending on the information descriptor, controls the second receiving unit to access a source apparatus corresponding to the additional data reference information; a second signal process unit that, if a second signal comprising additional data is received through the IP communication network, processes the additional data; and an output unit that synchronizes and outputs the reference data and the additional data. | 10-17-2013 |
20130271657 | RECEIVING APPARATUS FOR PROVIDING HYBRID SERVICE, AND HYBRID SERVICE PROVIDING METHOD THEREOF - A receiving apparatus includes a first receiving unit that receives signaling information and a first signal comprising reference data through a radio frequency broadcast network; a control unit that detects a plurality of additional data source information from the signaling information; a second receiving unit that accesses an internet protocol communication network, and receives a second signal comprising additional data from a source apparatus corresponding to each of the plurality of additional data source information; a storage unit that stores the reference data contained in the first signal and the additional data contained in the second signal; and an output unit that processes, synchronizes and outputs each of the reference data and additional data. | 10-17-2013 |
20140112395 | METHOD AND APPARATUS FOR DECODER BUFFERING IN HYBRID CODED VIDEO SYSTEM - Disclosed is a transport device in a video system which uses a hybrid video codec. The transport device includes a first video encoder which encodes a first video using a first video codec, a second video encoder which encodes a second video using a second video codec, and a delay buffer for synchronizing a delay time for the first video and the second video, based on a buffer size of if a first transport stream system target decoder (T-STD) stipulated in the first video encoder and a buffer size of a second T-STD stipulated in the second video encoder. | 04-24-2014 |
20140160541 | HOLOGRAPHIC IMAGE IDENTIFICATION APPARATUS AND METHOD, AND HOLOGRAPHIC IMAGE SELECTIVE RECONSTRUCTION APPARATUS, METHOD AND SYSTEM - Disclosed is an apparatus for identifying authenticity of a holographic image, which is capable of identifying the authenticity by comparing a holographic image reconstructed by irradiating light having the same characteristic as an irradiation characteristic of a first reference beam used in generating the holographic image with an original image. Accordingly, since an image or a pattern is recorded by using a reference beam having a specific angle and a specific laser wavelength band in making a hologram, replication or copying for forgery is prevented from being easy. | 06-12-2014 |
20140165125 | BROADCASTING SYSTEM AND BROADCASTING METHOD OF PROVIDING MULTI-PICTURE - A broadcasting transmitting apparatus of providing a multi-picture may include a multi-picture generator configured to divide an acquired video into a first video and a second video; a first video encoder configured to encode the first video; a second video encoder configured to encode the second video; a multiplexer configured to multiplex the first and second videos to a single stream video; and a transmitter configured to modulate the multiplexed single stream video to transmit the modulated single stream video to a receiving apparatus through a broadcasting network. | 06-12-2014 |
20140177722 | APPARATUS FOR CODING OR DECODING INTRA IMAGE BASED ON LINE INFORMATION OF REFERENCE IMAGE BLOCK - An apparatus for coding an image is provided to effectively code the image. The apparatus for coding the image includes an input image segmentation unit to segment an input image into a plurality of image blocks including a first image block and a second image block. The apparatus also includes a waveform information generation unit to select a plurality of reference pixels from among pixels included in the first image block, generate first waveform information about the first image block based on a pixel value difference between the selected plurality of reference pixels, and generate second waveform information about the second image block based on a pixel value difference between the pixels included in the second image block. The apparatus also includes a coding unit to code an image included in the second image block based on the first waveform information and the second waveform information. | 06-26-2014 |
20140192871 | APPARATUS FOR CODING OR DECODING INTRA IMAGE BASED ON LINE INFORMATION OF REFERENCE IMAGE BLOCK - An apparatus for coding an image is provided to effectively code the image. The apparatus for coding the image includes an input image segmentation unit to segment an input image into a plurality of image blocks including a first image block and a second image block. The apparatus also includes a waveform information generation unit to select a plurality of reference pixels from among pixels included in the first image block, generate first waveform information about the first image block based on a pixel value difference between the selected plurality of reference pixels, and generate second waveform information about the second image block based on a pixel value difference between the pixels included in the second image block. The apparatus also includes a coding unit to code an image included in the second image block based on the first waveform information and the second waveform information. | 07-10-2014 |
20140192872 | APPARATUS FOR CODING OR DECODING INTRA IMAGE BASED ON LINE INFORMATION OF REFERENCE IMAGE BLOCK - An apparatus for coding an image is provided to effectively code the image. The apparatus for coding the image includes an input image segmentation unit to segment an input image into a plurality of image blocks including a first image block and a second image block. The apparatus also includes a waveform information generation unit to select a plurality of reference pixels from among pixels included in the first image block, generate first waveform information about the first image block based on a pixel value difference between the selected plurality of reference pixels, and generate second waveform information about the second image block based on a pixel value difference between the pixels included in the second image block. The apparatus also includes a coding unit to code an image included in the second image block based on the first waveform information and the second waveform information. | 07-10-2014 |
20140192878 | APPARATUS FOR CODING OR DECODING INTRA IMAGE BASED ON LINE INFORMATION OF REFERENCE IMAGE BLOCK - An apparatus for coding an image is provided to effectively code the image. The apparatus for coding the image includes an input image segmentation unit to segment an input image into a plurality of image blocks including a first image block and a second image block. The apparatus also includes a waveform information generation unit to select a plurality of reference pixels from among pixels included in the first image block, generate first waveform information about the first image block based on a pixel value difference between the selected plurality of reference pixels, and generate second waveform information about the second image block based on a pixel value difference between the pixels included in the second image block. The apparatus also includes a coding unit to code an image included in the second image block based on the first waveform information and the second waveform information. | 07-10-2014 |
20140215547 | METHOD AND SYSTEM FOR PROVIDING REALISTIC BROADCASTING IMAGE - A method of providing a realistic broadcasting image including an ultra high definition (UHD) image, the method including generating a first encoding stream from a high definition (HD) image, generating a second encoding stream from at least one of a UHD image and an image restored from the first encoding stream, generating a third encoding stream from at least one of the UHD image and an image restored from the second encoding stream, generating a first transmission stream by applying at least one of packetization, synchronization, and multiplying to the first encoding stream and the second encoding stream, generating a second transmission stream by applying at least one of packetization and synchronization to the third encoding stream, transmitting the first transmission stream via a first transmission channel, and transmitting the second transmission stream via a second transmission channel having a lower transmission capacity than the first transmission channel. | 07-31-2014 |
20140286415 | VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR SAME - According to the present invention, a video decoding method comprises: a step of decoding a first bitstream corresponding to a base layer image based on first decoding information corresponding to the image that belongs to the view which is different from the view to which the base layer image belongs; and a step of decoding a second bitstream corresponding to an enhancement layer image based on second decoding information corresponding to the base layer image and third decoding information corresponding to the image that belongs to the view which is different from the view to which the enhancement layer image belongs. | 09-25-2014 |
20140344470 | METHOD AND APPARATUS FOR STREAMING SERVICE FOR PROVIDING SCALABILITY AND VIEW INFORMATION - A method and apparatus for a streaming service to provide scalability and view information are provided. When a scalable video or multi-view video is transmitted using a Moving Picture Experts Group-2 (MPEG-2) system, scalability information or view information regarding the scalable video or multi-view video in a payload may be used. Using the scalability information or view information, a packetized scalable video or multi-view video may be efficiently adapted to various terminal performances, various network characteristics, a specific user preference, and the like. | 11-20-2014 |
20140362676 | OPTICAL INFORMATION PROCESSING APPARATUS AND METHOD FOR CONTROLLING SAME - The present invention relates to an optical information processing apparatus and to a method for controlling same. Provided is an optical information processing apparatus and a method for controlling same, the optical information processing apparatus comprising: a light source for irradiating light; an optical modulator for modulating the light irradiated from the light source; an optical system for collecting the light modulated by the optical modulator and enabling the modulated light to be incident to an optical medium; a stage on which the optical medium is placed; an optical detection unit for detecting the pattern of the light reflected from the optical medium; and a control unit for analyzing the pattern of the light detected by the optical detection unit so as to control the optical system and the location of the stage. | 12-11-2014 |
20150077515 | METHOD AND DEVICE FOR COMPENSATING FOR SYNCHRONIZATION BETWEEN LEFT AND RIGHT IMAGE FRAMES IN THREE-DIMENSIONAL IMAGING SYSTEM, AND REPRODUCTION DEVICE AND METHOD - An apparatus for compensating for synchronization between left and right image frames in a stereoscopic system includes a similarity calculating unit configured to calculate similarity between left and right image frames on the basis of a scene change point in time of the left and right image frames, a left and right image frame difference value extracting unit configured to search a stereoscopic pair on the basis of the similarity and extract a temporal frame difference value between the left and right image frames, and a left and right image frame synchronization compensating unit configured to perform synchronization by shifting any one of the the left and right image frames on a time axis on the basis of the left and right image frame difference value. | 03-19-2015 |
20150085928 | APPARATUS FOR CODING OR DECODING INTRA IMAGE BASED ON LINE INFORMATION OF REFERENCE IMAGE BLOCK - An apparatus for coding an image is provided to effectively code the image. The apparatus for coding the image includes an input image segmentation unit to segment an input image into a plurality of image blocks including a first image block and a second image block. The apparatus also includes a waveform information generation unit to select a plurality of reference pixels from among pixels included in the first image block, generate first waveform information about the first image block based on a pixel value difference between the selected plurality of reference pixels, and generate second waveform information about the second image block based on a pixel value difference between the pixels included in the second image block. The apparatus also includes a coding unit to code an image included in the second image block based on the first waveform information and the second waveform information. | 03-26-2015 |
20150109413 | VIDEO RECEPTION APPARATUS TO PROVIDE HYBRID SERVICE BASED ON TRANSPORT STREAM SYSTEM TARGET DECODER MODEL - Provided is a video reception apparatus to receive hybrid three-dimensional television (3DTV) content that may synchronize a base video, received over a first communication network, and an auxiliary video, received over a second communication network, using a hybrid buffer or a file buffer, and may output the base video and the auxiliary video as a single stereoscopic video. | 04-23-2015 |
20150146779 | IN-LOOP FILTERING METHOD AND APPARATUS USING SAME - A video decoding method for depth information in accordance with an embodiment of the present invention includes generating a prediction block of a current block for the depth information, generating a restored block of the current block based on the prediction block, and performing filtering on the restored block, whether or not to perform the filtering can be determined based on block information about the current block and coding information about the current block. | 05-28-2015 |
20150146797 | METHOD AND SYSTEM FOR SUPPORTING RANDOM ACCESS OF MPEG DATA - Provided is a method of supporting a random access of MPEG data, the method including: obtaining at least one access unit including media data coded through processing including an encapsulation and a packetization; generating at least one media processing unit (MPU) by grouping at least one access unit; determining an initialization flag indicating whether the at least one access unit includes all of data required for initialization of a decoding process, in the at least one MPU; and inserting the initialization flag into a header of the at least one MPU. | 05-28-2015 |
20150146798 | METHOD AND SYSTEM FOR PROCESSING MPEG DATA - Provided is a method of processing MPEG data, the method including: obtaining at least one access unit including media data coded through processing including an encapsulation and a packetization; generating at least one media processing unit (MPU) by grouping at least one access unit; determining a duration flag indicating whether duration information of the at least one access unit is valid, in a corresponding MPU; and inserting the duration flag into a header of the corresponding MPU. | 05-28-2015 |
20150163513 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING HIGH-DEFINITION CONTENTS - A method and apparatus for dividing high-definition contents into two portions, encoding each portion into a dual stream of a 3D TV broadcasting system, and transmitting high-definition contents through the encoded dual stream, and a method of receiving high-definition contents that can generate high-definition contents by decoding a dual stream and combining the decoded each stream, are provided. | 06-11-2015 |
20150264398 | VIDEO DATA DECODING METHOD AND VIDEO DATA DECODING APPARATUS - Disclosed is a method and apparatus for decoding video data. The method for decoding video data includes receiving coded video data including multi-view video data and depth data corresponding to the video data, acquiring motion data for inter-view prediction of a coding unit of the coded video data from the depth data, and performing inter-view prediction based on the motion data, and restoring video data according to the multi-view video data including the coding unit and the depth data based on the motion prediction. | 09-17-2015 |
Patent application number | Description | Published |
20090157372 | METHOD AND APPARATUS FOR MODELING SOURCE-DRAIN CURRENT OF THIN FILM TRANSISTOR - Provided are a method and apparatus for modeling source-drain current of a TFT. The method includes receiving sample data, the sample data including a sample input value and a sample output value; adjusting modeling variables according to the sample data; calculating a current model value according to the adjusted modeling variables; when a difference between the calculated current model value and the sample output value is smaller than a predetermined threshold value, fitting a current model by applying the adjusted modeling variables to the current model; applying actual input data to the fitted current model; and outputting a result value corresponding to the actual input data, wherein the current model is a model for predicting the source-drain current of the TFT. | 06-18-2009 |
20100006837 | COMPOSITION FOR OXIDE SEMICONDUCTOR THIN FILM, FIELD EFFECT TRANSISTOR USING THE COMPOSITION AND METHOD OF FABRICATING THE TRANSISTOR - Provided are a composition for an oxide semiconductor thin film, a field effect transistor using the same and a method of fabricating the field effect transistor. The composition includes an aluminum oxide, a zinc oxide, an indium oxide and a tin oxide. The thin film formed of the composition is in amorphous phase. The field effect transistor having an active layer formed of the composition can have an improved electrical characteristic and be fabricated by a low temperature process. | 01-14-2010 |
20100019239 | METHOD OF FABRICATING ZTO THIN FILM, THIN FILM TRANSISTOR EMPLOYING THE SAME, AND METHOD OF FABRICATING THIN FILM TRANSISTOR - Provided are a method of fabricating a zinc-tin-oxide (ZTO) thin film, a thin film transistor employing the same, and a method of fabricating a thin film transistor. The method of fabricating a ZTO thin film includes depositing zinc oxide and tin oxide at a deposition temperature of 450° C. or lower so that a zinc-to-tin atomic ratio is 4:1 or greater, to form an amorphous ZTO thin film. In the thin film transistor, the ZTO thin film is used as a channel layer. | 01-28-2010 |
20100096619 | ELECTRONIC DEVICES USING CARBON NANOTUBES HAVING VERTICAL STRUCTURE AND THE MANUFACTURING METHOD THEREOF - Provided are an electronic device to which vertical carbon nanotubes (CNTs) are applied and a method of manufacturing the same. The method of manufacturing an electronic device having a vertical CNT includes the steps of: (a) preparing a substrate on which a silicon source is formed; (b) forming a first insulating layer on the substrate, and etching the first insulating layer such that a top surface of the silicon source is exposed; (c) forming a second insulating layer on the silicon source, and forming a gate by patterning the second insulating layer; (d) forming a third insulating layer on the gate, and forming a through hole in which a carbon nanotube channel is to be formed by etching the third insulating layer and the second insulating layer; (e) forming a fourth insulating layer surrounding the gate on the through hole and the third insulating layer, and forming a spacer by etching the fourth insulating layer; (f) forming a metal catalyst on the silicon source; (g) vertically growing the carbon nanotube channel on the silicon source using the metal catalyst; (h) forming a fifth insulating layer on the through hole in which the carbon nanotube is formed and the third insulating layer; and (i) patterning the fifth insulating layer such that the carbon nanotube channel is exposed, and forming a silicon drain. An arrangement problem of horizontal CNTs can be solved by applying vertical CNTs and a selective silicon growth technique. | 04-22-2010 |
20100155716 | THIN FILM TRANSISTOR USING BORON-DOPED OXIDE SEMICONDUCTOR THIN FILM AND METHOD OF FABRICATING THE SAME - Provided are a thin film transistor, to which a boron-doped oxide semiconductor thin film is applied as a channel layer, and a method of fabricating the same. The thin film transistor includes source and drain electrodes, a channel layer, a gate insulating layer, and a gate electrode, which are formed on a substrate. The channel layer is an oxide semiconductor thin film doped with boron. Therefore, it is possible to remarkably improve electrical characteristics and high temperature stability of the thin film transistor. | 06-24-2010 |
20100258437 | APPARATUS FOR REACTIVE SPUTTERING DEPOSITION - Provided is a reactive sputtering apparatus, and more particularly, a reactive sputtering apparatus capable of effectively ionizing a reactive gas using inductively coupled plasma (ICP). The reactive sputtering apparatus includes: a chamber having an inlet port for introducing a plasma gas thereinto and an outlet port for exhausting the gas used during reactive sputtering to the exterior; an ICP generator disposed on the chamber, ionizing a reactive gas, and injecting the ionized gas into the chamber; and at least one sputter gun located at a side surface of the chamber and supporting a target. Therefore, the reactive sputtering apparatus can improve an ionization rate of a reactive gas using inductively coupled plasma to reduce a process temperature and improve uniformity and step coverage of thin film deposition at low cost. | 10-14-2010 |
20110140097 | THIN FILM TRANSISTOR AND METHOD OF FABRICATING THE SAME - Provided are a thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer and a method of fabricating the same. The thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer exhibits significantly improved mobility and increased stability at a high temperature. | 06-16-2011 |
20110147735 | THIN FILM TRANSISTOR AND METHOD OF FORMING THE SAME - Provided are a thin film transistor and a method of forming the same. The thin film transistor includes: a substrate; a source electrode and a drain electrode on the substrate; an oxide active layer between the source electrode and the drain electrode; a gate electrode on one side of the oxide active layer; a gate dielectric layer between the gate electrode and the oxide active layer; and a buffer layer between the gate dielectric layer and the oxide active layer. | 06-23-2011 |
20110272279 | APPARATUS FOR MANUFACTURING SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE BY USING THE SAME - In a process for manufacturing a hyperfine semiconductor device, an apparatus for manufacturing a semiconductor device such as a schottky barrier MOSFET and a method for manufacturing the semiconductor device using the same are provided. Two chambers are connected with each other. A cleaning process, a metal layer forming process, and subsequent processes can be performed in situ by using the two chambers, thereby the attachment of the unnecessary impurities and the formation of the oxide can be prevented and the optimization of the process can be accomplished. | 11-10-2011 |
20120090543 | THIN FILM DEPOSITING APPARATUS - Provided is a thin film depositing apparatus. The thin film depositing apparatus includes: a loading chamber loading a plurality of substrates; a first process chamber connected to the loading chamber and including a plurality of sputter guns inducing a first plasma on the plurality of substrates; a buffer chamber connected to the other side of the first process chamber facing the loading chamber; and a substrate transfer module simultaneously passing the plurality of substrates between the plurality of sputter guns during a process using the first plasma and transferring the plurality of substrates from the first process chamber to the buffer chamber. | 04-19-2012 |
20120103259 | THIN FILM DEPOSITING APPARATUS - Provided is a thin film depositing apparatus. The thin film depositing apparatus includes: a process chamber including at least one sputter gun inducing a first plasma on a film or a flat plate; a loading unit provided at one side of the process chamber and including first and second loading chambers loading the film or the flat plate into the process chamber; and an unloading unit provided at the other side of the process chamber facing the loading unit and including first and second loading chambers including first and second unloading chambers unloading the film or the flat plate from the process chamber, wherein the first loading chamber is connected to the first unloading chamber or the second loading chamber is connected to the second unloading chamber at both sides of the process chamber. | 05-03-2012 |
20120103802 | THIN FILM DEPOSITING APPARATUS - Provided is a thin film depositing apparatus. The thin film depositing apparatuses includes: a chamber where a process is performed on a subject to be processed; a plurality of supporters supporting the subject to be processed in the chamber; at least one sputter gun inducing a first plasma below or on the subject to be processed between the plurality of supporters; and a plurality of inductive coupled plasma tubes inducing a more expanded second plasma than the first plasma between the sputter gun and the subject to be processed. | 05-03-2012 |
20120297351 | METHODS OF MODELING A TRANSISTOR AND APPARATUS USED THEREIN - Methods of modeling a transistor are provided. The method includes the steps of (a) extracting reference mobility values of a channel layer of a transistor including a gate electrode, a source region and a drain region using a reference gate voltage, a reference drain current and a reference drain voltage, (b) fitting a mobility function including model parameters on the reference mobility values to extract the model parameters, and (c) putting the extracted model parameters into a drain current modeling function to calculate a drain current flowing through the channel layer between the drain region and the source region under a bias condition defined by an arbitrary gate voltage applied to the gate electrode and an arbitrary drain voltage applied to the drain region. Related apparatuses are also provided. | 11-22-2012 |
20120298985 | THIN FILM TRANSISTOR AND METHOD OF FABRICATING THE SAME - Provided are a thin film transistor able to increase or maximize productivity and production yield, and a method of fabricating the same. The method of fabricating the thin film transistor includes forming a gate electrode on a substrate, forming a gate insulating layer on the gate electrode, forming an active layer formed of an amorphous oxide semiconductor on the gate insulating layer, and respectively forming a source electrode and a drain electrode on both sides of the active layer above the gate electrode. The amorphous oxide semiconductor of the active layer may be doped with a metal oxide dielectric. | 11-29-2012 |
20130016054 | TOUCH SCREEN PANELAANM Cheong; Woo-SeokAACI DaejeonAACO KRAAGP Cheong; Woo-Seok Daejeon KRAANM Shin; JaeheonAACI DaejeonAACO KRAAGP Shin; Jaeheon Daejeon KR - Touch screen panels are provided. The touch screen panel may include a first hybrid electrode including first electrode cells arranged on a substrate in a first direction and first connection electrodes connecting the first electrode cells to each other in the first direction, and a second hybrid electrode spaced apart from the first hybrid electrode on the substrate. The second hybrid electrode may include second electrode cells arranged in a second direction crossing the first direction and second connection electrodes connecting the second electrode cells to each other in the second direction. The second electrode cells are disposed between the first connection electrodes. The first hybrid electrode may include a first lower transparent layer and a first metal layer which are sequentially stacked, and the second hybrid electrode may include a second lower transparent layer and a second metal layer which are sequentially stacked. | 01-17-2013 |
20130133735 | SOLAR CELL MODULE AND METHOD OF MANUFACTURING THE SAME - Provided are a solar cell module and a method of manufacturing the same. The solar cell module including: a substrate; a bottom electrode layer discontinuously formed on the substrate; a light absorbing layer formed on the bottom electrode layer and including a first trench that exposes the bottom electrode layer; and a transparent electrode layer extending from the top of the light absorbing layer to the bottom electrode layer at the bottom of the first trench, and including a first oxide layer, a metal layer, and a second oxide layer, all of which are staked on the light absorbing layer and the bottom electrode layer. | 05-30-2013 |
20130137208 | METHOD FOR MANUFACTURING SOLAR CELL MODULE - Provided is a method of manufacturing a solar cell module The method includes: forming a bottom electrode layer on a substrate; forming a light absorbing layer on the bottom electrode layer and the substrate; forming a first trench that exposes the bottom electrode layer by patterning the light absorbing layer; and forming a window electrode layer that extends from the top of the light absorbing layer to the bottom of the bottom of the first trench, wherein the window electrode layer is formed through an ionized physical vapor deposition method. | 05-30-2013 |
20130266724 | METHOD OF MANUFACTURING TOUCH SCREEN PANEL - Provided is a method of manufacturing a touch screen panel. The method of manufacturing the touch screen panel includes preparing a substrate including a cell region and an interconnection region formed around the cell region, forming bridge electrodes arranged at a predetermined distance on the cell region of the substrate, forming an insulation layer on the substrate including the bridge electrodes, patterning the insulation layer to form contact holes exposing both ends of the bridge electrodes, and forming X-axis electrode extending in a first direction between the contact holes spaced apart from and facing each other and Y-axis electrode cells filling the contact holes and formed in a second direction perpendicular to the first direction. The bridge electrodes, the X-axis electrodes, and the Y-axis electrode cells are formed as hybrid electrodes, respectively. | 10-10-2013 |
20140008650 | THIN FILM TRANSISTOR AND METHOD OF FABRICATING THE SAME - Provided are a thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer and a method of fabricating the same. The thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer exhibits significantly improved mobility and increased stability at a high temperature. | 01-09-2014 |
20140015771 | TOUCH SCREEN PANELS AND METHODS OF FABRICATING THE SAME - Provided are touch screen panels with improved transmittance and methods of fabricating the same. the method may include preparing a substrate including a cell region and an interconnection region provided around the cell region, sequentially forming a first buffer layer and a second buffer layer on the substrate, the second buffer layer having a refractive index less than that of the first buffer layer, and forming a transparent electrode on the second buffer layer. The second buffer layer is formed of a SiOC material. | 01-16-2014 |
20140327841 | TOUCH SCREEN PANEL AND DISPLAY INCLUDING THE SAME - Provided is a touch screen panel. The touch screen panel according to an embodiment of the inventive concept includes a transparent substrate including a first region and a second region, a buffer layer disposed on the first region and second region, the buffer layer having a first transmittances, and a transparent indium tin oxide (ITO) electrode disposed on the buffer layer of the second region, the transparent ITO electrode and the buffer layer on the second region having a second transmittance, wherein a thickness of the transparent ITO electrode is 100 nm to 500 nm, and a difference between the first transmittance and the second transmittance is less than 1.5%. | 11-06-2014 |