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| Number | Title | Issue Date |
| 7684343 | Data transmission method for wireless network Disclosed is a device and method that relates to radio engineering and especially to data transmission in a wireless local area network. The method improves the throughput of the wireless local area network, by selecting a transmission rate, data transmission mechan... | 03/23/2010 |
| 7582163 | Apparatus for processing surface of substrate A substrate surface processing apparatus is provided. In the substrate surface processing apparatus, a spin chuck holds a substrate thereon by suction, spins the substrate, and moves up and down the substrate. An upper bowl and a lower bowl surround the spin chuck f... | 09/01/2009 |
| 7571693 | Condensed retractable safety marker A condensed retractable traffic cone is a device designed to provide motorists with advance warning of disabled vehicles and/or work zone areas. The device has been designed to withstand reasonable winds through the use of two base supports, a lower portion, a retra... | 08/11/2009 |
| 7567623 | Differential space-time block coding apparatus with high transmission rate and method thereof Disclosed is a differential space-time block coding apparatus with a high transmission rate in a wireless communication system employing multiple transmit antennas and a method thereof. The differential space-time block coding method includes the steps of, when elem... | 07/28/2009 |
| 7561396 | Apparatus for monitoring open state of the secondary terminals of a current transformer Disclosed herein is an apparatus for connection to the secondary terminals of a CT to prevent CT damage and electric shock when the secondary terminals are opened, by providing an input signal and operating a relay circuit to short the CT secondary terminals. The ap... | 07/14/2009 |
| RE40778 | Mobile radio telephone capable of recording/reproducing voice signal and method for controlling the same The present invention relates generally to a mobile radio telephone capable of recording and reproducing received frame data of voice channels, a data rate of which varies based on a voice traffic per unit time. The mobile radio telephone comprises a memory for stor... | 06/23/2009 |
| 7545772 | Apparatus and method for assigning subchannels in an OFDMA communication system A wireless communication system that divides an entire frequency band into a plurality of subcarrier bands and includes a plurality of subchannels, each of which includes a number of subcarrier bands. The number of subcarrier groups is equal to the number of the bas... | 06/09/2009 |
| 7545331 | Antenna device for portable terminal An antenna device for a portable terminal, which allows a whip antenna and helical antenna of a terminal to be retracted and withdrawn along an extension from the terminal, while not causing them to protrude out of the terminal. The antenna device provided with a wh... | 06/09/2009 |
| 7542765 | Method for handoff in mobile communication system Disclosed is a handoff method connected with resource allocation in order to prevent QoS degradation, which may occur during or before/after a handoff on account of channel state change resulting from the mobility of a radio communication apparatus. To this end, a s... | 06/02/2009 |
| 7542530 | Apparatus and method for controlling a digital automatic gain controller in an orthogonal frequency division multiple access communication system An apparatus and method for controlling a digital AGC in a communication system in which power changes significantly from frame to frame. In the digital AGC controlling apparatus, an SNR estimator estimates an uplink SNR of a next frame. A power measurer measures up... | 06/02/2009 |
| 7542442 | Uplink scheduling method in VoIP A method of scheduling uplink resources in a wireless communication system supporting VoIP service is provided. A BS allocates an identical amount of the resource continuously until an uplink data rate is changed by an SS's request for a data rate change. When the d... | 06/02/2009 |
| 7542441 | Resource allocation method in a multicarrier communication system A resource allocation method in a multicarrier communication system where a base station allocates resources to a plurality of mobile stations according to feedback channel information from the mobile stations. The base station receives a resource request message fr... | 06/02/2009 |
| 7541891 | Dual band digital multimedia broadcasting receiver A dual band digital multimedia broadcasting (DMB) receiver is provided. The dual band DMB receiver of the present invention includes a first and a second antenna for receiving first and second frequency band signals, respectively; a body for recovering the signals r... | 06/02/2009 |
| D593712 | Nail clipper | 06/02/2009 |
| 7539525 | Wireless headset phone of ear-worn type Disclosed is a wireless headset phone. The wireless headset phone includes: a body housing; at least one hinge support rotatably mounted to the body housing, for attaching the headset phone to the left or right ear of a user; an earpiece provided in the hinge suppor... | 05/26/2009 |
| 7539421 | Self-contained secure videoconferencing console Disclosed is a secure/non-secure bypass switch, including at least one input port for receiving signals; a control module for determining if a secure or a non-secure operating mode is selected; if a non-secure mode is selected, configuring at least one relay to rout... | 05/26/2009 |
| 7539263 | Method for transmitting and receiving preamble sequences in an orthogonal frequency division multiplexing communication system using a multiple input multiple output scheme In an orthogonal frequency division multiplexing (OFDM) communication system using multiple transmit antennas, a first base sequence with a first length is segmented into a first number of second sequences to which different time offsets are applied. Subsequences of... | 05/26/2009 |
| 7536176 | Method and system for providing a broadcast/multicast service in a wireless communication system A broadcast service method and system for use in wireless communication system. The broadcast service method and system for a wireless communication system according to the present invention assigns individual unique BCMCS IDs to a plurality of BCMCS controllers, su... | 05/19/2009 |
| 7536014 | Apparatus and method for generating scrambling code in UMTS mobile communication system A scrambling code generating apparatus of a downlink transmitter in a UMTS mobile communication system, which uses one primary scrambling code for separation of base stations and multiple secondary scrambling codes for channel separation. The apparatus includes a fi... | 05/19/2009 |
| 7535970 | Wireless communication apparatus and method for multiple transmit and receive antenna system using multiple codes Disclosed is a wireless communication apparatus and method for a multiple transmit and receive antenna system using multiple codes. In suggested detection algorithm, a successive interference cancellation (SIC) scheme is employed in both an antenna domain and a code... | 05/19/2009 |
| 7535869 | Apparatus and method for dynamically assigning resources in an OFDM communication system A mobile communication system and method utilizing Orthogonal Frequency Division Multiplexing (OFDM) receives channel quality information (CQIs) for subcarriers through which reference signals are transmitted and subcarriers through which data signals are transmitte... | 05/19/2009 |
| 7535860 | Apparatus and method for transmitting/receiving pilot signal in communication system using OFDM scheme Disclosed is a method for transmitting a pilot symbol from base stations (BSs) to a subscriber station (SS) in a communication system which includes the base stations located adjacent to each other, the method includes the steps of transmitting BS-identifying sub-ca... | 05/19/2009 |
| 7535846 | Method for handling inter-RAT measurement and report in a dual-mode user equipment Disclosed is a method for handling inter-RAT cell measurement in a dual-mode UE in a connected mode, which supports both GSM/GPRS (Global System for Mobile communication/General Packet Radio Service) RAT (Radio Access Technology) and UMTS (Universal Mobile Telecommu... | 05/19/2009 |
| 7535119 | Power control apparatus of a complex terminal A power control apparatus of a complex terminal is disclosed that includes a DC/DC converter for outputting an auxiliary power supplied from an auxiliary battery after adjusting a level of voltage of the auxiliary power to a required input voltage level of the compl... | 05/19/2009 |
| 7533280 | Emergency call apparatus and method for smart phone An emergency call apparatus and method for a smart phone are disclosed in which the apparatus includes a personal data assistant unit including a telephone power control unit for generating a telephone power-on signal when an emergency call requirement occurs in a s... | 05/12/2009 |
| 7532916 | Slide-type portable terminal using flexible material Disclosed is a portable terminal using a flexible material. The portable terminal includes an upper portion, a lower portion and a flexible portion integrally connecting the upper and lower portions. The portable terminal is of a slide-type in which after the upper ... | 05/12/2009 |
| 7532911 | Random beamforming method for a MIMO system A transmission method based on random beamforming. A base station receives, from mobile stations, feedback information including channel-by-channel transmission rates for a weight vector arbitrarily set by the base station. The base station compares transmission rat... | 05/12/2009 |
| 7532903 | Method for performing TRS communication in a mobile communication terminal A method for performing communication in a mobile communication terminal capable of TRS communication. In the method, the mobile communication terminal periodically searches for another TRS channel or a mobile communication paging channel even though the mobile comm... | 05/12/2009 |
| 7532902 | Method and apparatus for cell search in wireless communication system Disclosed is an apparatus and a method for performing a cell search in a wireless communication system. A subscriber station calculates the power of subcarriers according to their positions in a preamble signal of a frequency domain and identifies a segment of a cel... | 05/12/2009 |
| 7532858 | Method for determining existence of repeater using portable internet signal and method for measuring position of mobile station using the same Disclosed is a method for determining an existence of a repeater using a portable Internet signal and for measuring a position of a mobile station using the same, the method receiving a portable Internet signal and a mobile communication signal from a base station, ... | 05/12/2009 |
| 7532660 | System and method for transmitting /receiving a signal in a mobile communication system using a multiple input multiple output adaptive antenna array scheme Disclosed are a method and a system for transmitting/receiving signals in a mobile communication system using a multiple input multiple output adaptive antenna array scheme. A first receiver calculates a reception weight value by using a de-spread signal of a recept... | 05/12/2009 |
| 7532599 | Apparatus and method for allocating user in a multiple antenna mobile communication system supporting multi-user diversity A user allocating apparatus and method in a multiple antenna mobile communication system supporting multi-user diversity is provided. Each user calculates effective Signal-to-Interference Noise Ratios (SINRs) and bit loading over every possible detection order and s... | 05/12/2009 |
| 7532590 | Cell search apparatus and method in a mobile communication system A cell search apparatus and method in a mobile communication system. After a UE acquires slot boundary timing and frame boundary timing to a Node B, it acquires its scrambling code number and scrambling code timing. After the initial cell search, the UE performs mul... | 05/12/2009 |
| 7532166 | Antenna device for portable terminal Provided is an antenna device for a portable terminal including a first housing and a second housing assembled with the first housing so as to slidingly move on the first housing. The antenna device includes an antenna pattern installed on an inner surface of the se... | 05/12/2009 |
| 7529817 | Method for managing duplicated arrival notification message in multimedia messaging service Disclosed is a method for managing a duplicated MMS arrival notification message. The method includes the steps of receiving, by the MMS proxy server, a download completion notification message transmitted from the receiving mobile terminal and transmitting a duplic... | 05/05/2009 |
| 7529573 | Slide apparatus of slide-type portable terminal Disclosed is a slide apparatus of a slide-type portable terminal in which a slide apparatus is integrally formed on both sides of a slide type housing. The slide apparatus of a slide-type portable terminal includes a body housing and a slide housing opened and close... | 05/05/2009 |
| 7529568 | Hinge guide apparatus of swing-type portable terminal A hinge guide apparatus of a swing-type portable terminal which can prevent deflection of a hinge module when the battery pack of the portable terminal is attached or detached is provided. The swing-type portable terminal having a body housing to and from which a ba... | 05/05/2009 |
| 7529327 | Method and apparatus for compensating for the frequency offset in interleaved frequency division multiple access Provided are a method and apparatus for compensating for a frequency offset in an interleaved frequency division multiple access. The method compensates for a frequency offset between a transmission signal and a reception signal for a uth user (1≦u≦U,... | 05/05/2009 |
| 7526717 | Apparatus and method for coding and decoding semi-systematic block low density parity check codes An apparatus and method for coding a semi-systematic block low density parity check (LDPC) code in which an information word is received and coded into a codeword including the information word, a first parity, a second parity, and a third parity, based on one of a ... | 04/28/2009 |
| 7526712 | Deinterleaving apparatus and method using inner memory and outer memory An apparatus and a method for deinterleaving using an inner memory and an outer memory. The apparatus includes data receiving apparatus of a mobile equipment in a mobile communication system including the mobile equipment and a base station for transmitting data to ... | 04/28/2009 |
