Patent application number | Description | Published |
20100135701 | DEVELOPING UNIT OF IMAGE FORMING APPARATUS - A developing unit provided in an image forming apparatus includes a regulating member that improves developer layer regulation performance. The developing unit is configured to feed developer to a photoconductor, on which an electrostatic latent image is formed, to form an image. The regulating member of the developing unit includes a bending portion contacting an outer peripheral surface of a developing device provided in a frame of the developing unit. The width of the regulating member is variable to increase rearward from the bending portion. The regulating member may further include an extension portion extending from the bending portion. Sealing members may be attached to both ends of the frame of the developing unit so as to contact the respective ends of the bending portion. | 06-03-2010 |
20110099805 | Method of Fabricating Capacitive Touch-Screen Panel - Provided is a method of fabricating a capacitive touch-screen panel. The method includes preparing first and second substrates having first lateral surfaces on which first and second transparent conductive layers for forming first and second transparent electrode pattern units are disposed. Each of the first and second substrates has a screen region and an inactive region. Second lateral surfaces of the first and second substrates are bonded to each other by an interlayer adhesive. First and second metal layers for forming first and second outer electrode interconnections are disposed on exposed surfaces of the first and second transparent conductive layers, respectively. Double-side exposure and etching processes are performed to form the first transparent electrode pattern unit and the first outer electrode interconnection on the screen region and the inactive region of the first lateral surface of the first substrate, respectively, and simultaneously, form the second transparent electrode pattern unit and the second outer electrode interconnection on the screen region and the inactive region of the first lateral surface of the second substrate, respectively. The first and second outer electrode interconnections are electrically connected to the first and second transparent electrode pattern units, respectively. The method can efficiently reduce the fabrication cost of a touch screen and greatly simplify the fabrication process of the touch-screen panel. | 05-05-2011 |
20110101572 | METHOD OF MANUFACTURING CHARGING ROLLER FOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND CHARGING ROLLER MANUFACTURED BY THE SAME METHOD - Disclosed is a method of manufacturing a charging roller useable in an electrophotographic image forming apparatus and a charging roller manufactured according to the method. The method includes introducing a conductive agent and a mixture of a rubber-based material and polyolefin-based resin into an extruder, extruding the conductive agent and the mixture to obtain an extrudate, crosslinking the extrudate by electron beam irradiation, and polishing the crosslinked extrudate. The method results in an environmentally friendly and simplified manufacturing processes, and/or in the reduction of the manufacturing costs. | 05-05-2011 |
20110109583 | Capacitive Touch Screen Panel - Provided is a capacitive touch-screen panel. The capacitive touch-screen panel includes a first substrate having a screen region and an inactive region, a first transparent electrode pattern unit disposed in the screen region of a first lateral surface of the first substrate, a first outer electrode interconnection formed in the inactive region of the first lateral surface of the first substrate and electrically connected to the first transparent electrode pattern unit, a second substrate having a first lateral surface bonded with a second lateral surface of the first substrate using an interlayer adhesive, the second substrate having a screen region and an inactive region, a second transparent electrode pattern unit disposed on the screen region of a second lateral surface of the second substrate, and a second outer electrode interconnection formed in the inactive region of a second lateral surface of the second substrate and electrically connected to the second transparent electrode pattern unit. The capacitive touch-screen panel is configured to sense a touched position with a variation in capacitance due to a contact with the first and second transparent electrode pattern units. As a result, malfunctions from occurring due to a state of contact with an upper portion of an electrode unit of a touch screen and malfunctions and damage from occurring due to scratches and static electricity during a contact with the touch screen may be prevented. Further, the fabrication cost of a touch screen may be efficiently reduced, and the fabrication process of a touch-screen panel may be greatly simplified. | 05-12-2011 |
20110158705 | TONER SUPPLY ROLLER FOR ELECTROPHOTOGRAPHIC IMAGING APPARATUS AND METHOD OF PREPARING THE SAME - A toner supply roller of an electrophotographic imaging apparatus and a method of preparing the toner supply roller are provided. The toner supply roller includes a polyurethane foam, and a metal shaft inserted in the polyurethane foam along an axis thereof, wherein the polyurethane foam includes an ion-conductive agent and a binder, and the binder includes a resin having an amide bond. Accordingly, the toner supply roller including polyurethane foam provides an improved toner supply and prevents image defects. | 06-30-2011 |
20120045251 | Charging apparatus using charging tube and image forming apparatus having the same - A charging apparatus including a charging tube which has an outer surface contacting a photoconductive medium and electrically charges a surface of the photoconductive medium, a shaft which is disposed in the charging tube and to which a charging voltage is applied, and a conductive member which is connected to the shaft and contacts an inner surface of the charging tube. A friction coefficient between the conductive member and the inner surface of the charging tube may be less than a friction coefficient between the photoconductive medium and the outer surface of the charging tube, so that a slip phenomenon of the charging tube is prevented. | 02-23-2012 |
20120201572 | ROLLER FOR IMAGING APPARATUS AND IMAGING APPARATUS INCLUDING THE ROLLER - A roller includes a shaft including reinforcing fiber and a binder resin; and an elastic body surrounding an outer surface of the shaft, wherein an average length to average diameter ratio (L/D) of the reinforcing fiber is from about 15,000:1 to about 50,000:1. | 08-09-2012 |
20130136501 | DEVELOPING CARTRIDGE AND IMAGE FORMING APPARATUS HAVING THE SAME - A developing cartridge includes a photoconductive body, a charging unit which charges a surface of the photoconductive body and a developing unit which forms a toner image. The charging unit includes a shaft which applies a charging voltage and which has a central axis parallel to a rotating axis of the photoconductive body, a tubular member of a conductive material which surrounds the shaft, a current carrying member which applies an electric current to the shaft and the tubular member, and a damping member which is disposed between the shaft and the current carrying member. The shaft has a middle portion which is thicker than opposite end portions in a longitudinal direction along the central axis. | 05-30-2013 |
20130201176 | DISPLAY APPARATUS - A display apparatus is provided. The display apparatus includes: a display panel unit which comprises a first panel region corresponding to an opaque display region, and a second panel region corresponding to a transparent display region, a panel driving unit which drives the first panel region and the second panel region independently, and a controller which controls to display a main image on the opaque display region and display an additional image on the transparent display region. | 08-08-2013 |
20140111689 | DISPLAY DEVICE, METHOD OF CONTROLLING THE DISPLAY DEVICE, AND INFORMATION PROCESSOR TO CONTROL THE DISPLAY DEVICE - A display device includes an input unit to receive a user message, a video output unit to display a plurality of agents, and an agent controller to analyze the user message and generate at least one agent message for at least one of the plurality of agents based on an analysis result of the user message. Different agent messages are generated for the plurality of agents. The display device may display the agent messages on the video output unit. If the display device includes an audio output unit, the agent messages may be output by voice. | 04-24-2014 |
20140111690 | DISPLAY DEVICE, REMOTE CONTROL DEVICE TO CONTROL DISPLAY DEVICE, METHOD OF CONTROLLING DISPLAY DEVICE, METHOD OF CONTROLLING SERVER AND METHOD OF CONTROLLING REMOTE CONTROL DEVICE - A display device, a remote control device for the display device, a method of controlling the display device, a method of controlling the remote control device, and a method of controlling a server includes collecting at least one piece of situation information or receiving at least one piece of situation information from a remote control device, determining a current state of a user based on the collected or received at least one piece of situation information, instructing the remote control device to output a notification signal corresponding to the current state of the user, and generating the control command according to the current state of the user and providing a sense-based image service to the user according to the control command. | 04-24-2014 |
Patent application number | Description | Published |
20090252051 | Apparatus and method for efficient resource allocation using cognitive radio communication in orthogonal frequency division multiple access (OFDMA)-based moving networks - An apparatus and a method for efficient resource allocation using a cognitive radio communication in Orthogonal Frequency Division Multiple Access (OFDMA)-based moving networks are provided. The method includes determining a minimum transmit power value of the MRS, which enables the internal terminal to have a receive Signal to Interference and Noise Ratio (SINR) greater than a first threshold; determining a transmit power value of the MRS by taking into account the determined minimum transmit power value; determining a transmit power value of the MRS per cellular terminal, which is transmittable at maximum while exerting interference less than a second threshold on a corresponding cellular terminal; searching one or more cellular terminals having the maximum transmittable transmit power value determined per cellular terminal greater than the determined transmit power value; and borrowing and allocating a resource allocated to the searched cellular terminal to the internal terminal. | 10-08-2009 |
20100165914 | BEAM DIVISION MULTIPLE ACCESS SYSTEM AND METHOD FOR MOBILE COMMUNICATION SYSTEM - The present invention is related to a beam division multiple access system and a method thereof. The base station according to the present invention comprises a initial mobile station information receiver for receiving initial mobile station information that a mobile station omnidirectionally transmits in an initial communication step, a mobile station location and speed detector for detecting a location and a moving speed of the mobile station from the initial mobile station information, a downlink beam generator for generating a downlink beam based on the location and the moving speed of the mobile station transferred from the mobile station location and speed detector, and adjusting at least one of a width and a direction of each the downlink beam, and a downlink beam transmitter for transmitting the downlink beam generated by the downlink beam generator to the mobile station through a phase array antenna. | 07-01-2010 |
20100261480 | Relay Communication Method of Next Generation Cellular Communication System - A method of performing relay communication in a next generation cellular communication system is disclosed. The next generation cellular communication system includes a base station and a plurality of terminals, and a communication target terminal which has not acquired a Line-Of-Sight (LOS) channel with the base station performs communication through the relay of a relaying terminal which has acquired a LOS channel. The base station determines the relaying terminal. The relaying terminal forms a relaying terminal group by determining one or more relaying assistant terminals. The communication target terminal forms a transmitting/receiving terminal group by determining one or more transmitting/receiving assistant terminals. The base station performs communication with the relaying terminal through the relaying terminal, relaying assistant terminals of the relaying terminal group and the transmitting/receiving assistant terminals of the transmitting/receiving terminal group. | 10-14-2010 |
20100265996 | REPEATER AND METHOD FOR PROCESSING SIGNAL, AND METHOD FOR CONVERTING SYNCHRONOUS FREQUENCY THEREOF - A repeater having different input and output frequencies converts a signal received with the input frequency to a first intermediate frequency signal based on a local oscillating frequency for intermediate frequency conversion, and converts the first intermediate frequency signal to a second intermediate frequency signal by performing digital processing on the first intermediate frequency signal. Then, the repeater generates a first frequency tone signal that corresponds to a difference between the input and output frequencies, and generates a second frequency tone signal from the local oscillating frequency for intermediate frequency conversion and the first frequency tone signal. The repeater up-converts the second intermediate frequency signal to the output frequency based on the second frequency tone signal, and transmits the signal. | 10-21-2010 |
20110124343 | COMMUNICATION SYSTEM OF DETECTING VICTIM TERMINAL AND PERFORMING INTERFERENCE COORDINATION IN MULTI-CELL ENVIRONMENTS - Provided is a method, and an apparatus and communication system to perform the method, of detecting a victim terminal and performing an interference coordination in a multi-cell environment. The multi-cell environment may include a heterogeneous cell environment including a small cell and a macro cell. The method includes determining whether a macro terminal is located within a cell coverage of a small base station, and adjusting the cell coverage according to the determination. | 05-26-2011 |
20110245456 | BIODEGRADABLE POLYMER MICROPARTICLES AND PREPARATION METHOD THEREOF - The present invention relates to a preparation method for a biodegradable polymer microparticle and a microparticle prepared by the method. More particularly, the present invention relates to a method for preparing a polymer microparticle, wherein the method includes the steps of: dissolving a biodegradable polyester-based polymer in DMSO (Dimethyl Sulfoxide); spraying the solution in a low temperature hydrocarbon solution to provide a frozen DMSO microparticle; adding the microparticle in a low temperature salt aqueous solution to dissolve DMSO; and removing salt. The present invention provides a method for preparing a novel polymer microsphere which can be injected through a syringe due to excellent physical properties (such as biocompatibility, biodegradability, porosity, mechanical strength) and the microcarrier's size-adjustability, and can be easily mass-produced. The microparticle prepared by the method of the present invention may have variable sizes with biodegradability and biocompatibility, and thus can be used as a carrier for regeneration of a damaged cell or tissue by being injected into a body through a syringe. | 10-06-2011 |
20120005715 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM - Provided is an apparatus and method for transmitting and receiving broadcasting data and supplementary data. The method includes: generating broadcasting data and supplementary data for a plurality of predetermined 3D broadcasting services to be provided to users; multiplexing the generated broadcasting data for broadcasting channels respectively allocated to the plurality of predetermined 3D broadcasting services, and multiplexing the generated supplementary data for one commonly broadcasting channel commonly allocated to the plurality of predetermined 3D broadcasting services; encoding the multiplexed supplementary data corresponding to a conditional access system; and transmitting the encoded supplementary data to the one common broadcasting channel, and transmitting the multiplexed broadcasting data to the allocated broadcasting channels. | 01-05-2012 |
20120122502 | METHOD AND APPARATUS OF CONTROLLING INTER CELL INTERFERENCE BASED ON COOPERATION OF INTRA CELL TERMINALS - Provided is a method and apparatus for controlling inter cell interference based on cooperation between intra cell terminals. The intra cell terminals may exchange interference channel information, and may determine a receive beamforming vector based on the exchanged interference channel information. At least one intra cell terminal may feed back, to a neighboring cell base station, information associated with an effective interference channel using the receive beamforming vector. A base station may determine a transmit beamforming vector based on information associated with an effective interference channel using receive beamforming vectors of neighboring cell terminals that are received from at least one neighboring cell terminal. | 05-17-2012 |
20130072113 | POWER CONTROL METHOD IN TWO-WAY RELAY NETWORK - Provided is a method for power control in a two-way relay network. The power control method may maximize a minimum transmission rating and a synthesized transmission rating of the overall system when there are restrictions on the synthesized power of terminals and a repeater in the two-way relay network. The power control method may include determining a power ratio for allocating power to each terminal and a repeater for each subcarrier under restriction on synthesized power of the terminals and the repeater and determining power allocated for each subcarrier according to the determined power ratio. | 03-21-2013 |
20130200948 | DIGITAL PRE-DISTORTION DEVICE AND METHOD FOR A BROADBAND POWER AMPLIFIER - According to the present invention, a digital pre-distortion device and method for use in a dynamic spectrum allocation system, which uses a breadband frequency range, such as a cognitive radio (CR) system, are implemented. Also, while as conventional pre-distortion device only enable the linearization of a signal of a fundamental frequency band, the digital pre-distortion device and method according to the present invention enable not only the linearization of a basic signal on frequency f | 08-08-2013 |
20140087683 | METHOD AND APPARATUS OF TEMPORARY LOCAL TRANSMISSION FOR DISASTER INFORMATION DELIVERY - Disclosed is a method of receiving, by a terminal, an additional network service provided through a temporary base station disposed temporarily or locally in order to transfer disaster information, including: receiving information on the additional network through an existing network service provided by a base station; verifying whether the terminal is handed over to the additional network based on the information on the additional network; and receiving the additional network service through the additional network. According to the present invention, even when a communication service disability occurs due to a flood of telephone traffic in an area where a disaster situation or an event occurs, a communication service can be provided through the additional network in terms of the communication service and a broadcasting channel that provides information specific to the disaster situation or event can be temporarily or locally additionally provided. | 03-27-2014 |
20140118066 | LOW-COST DIGITAL PREDISTORTION APPARATUS AND METHOD USING ENVELOPE DETECTION FEEDBACK - Disclosed herein is a low-cost digital predistortion apparatus using envelope detection feedback. The low-cost digital predistortion apparatus includes a digital predistortion unit and an envelope detection feedback unit. The digital predistortion unit converts the output of a predistorter into analog signals, frequency-modulates the analog signals into a pass band signal, and amplifies the frequency-modulated signal via a power amplifier. The envelope detection feedback unit converts the difference between the input and output of the power amplifier of the digital predistortion unit and the output of the power amplifier into baseband signals, respectively, converts the baseband signals into digital signals, estimates the nonlinear distortion characteristic output of the power amplifier, calculates a predistortion parameter that is used to compensate for the estimated nonlinear distortion characteristic output of the power amplifier. | 05-01-2014 |
20140321563 | METHOD AND APPARATUS FOR PERFORMING COMMUNICATION IN MULTI-STAGE BEAM FORMING SYSTEM - A method for performing communication in a multi-stage beam forming system includes determining statistical channel information which indicates a priority of analog beams transmitted by a base station, configuring an adaptive code book for digital beam forming, based on the statistical channel information and analog beams which the base station uses in actual communication among the analog beams, and performing communication with the base station through the digital beam forming based on the adaptive code book. A terminal includes a channel estimator configured to perform channel estimation for analog beams transmitted from a base station, a controller configure to determine statistical channel information indicating a priority of the analog beams, and configure an adaptive code book for digital beam forming based on the statistical channel information and analog beams that the base station uses in actual communication among the analog beams, and a communication unit. | 10-30-2014 |
20140369328 | APPARATUS AND METHOD FOR OPERATING ANALOG BEAM IN A BEAM DIVISION MULTIPLE ACCESS SYSTEM - A method and apparatus for operating an analog beam is provided. The apparatus includes a hybrid beam-forming structure having a small number of digital chains provided in a digital stage and a signal is transmitted and received in a Time Division Multiple Access (TDMA) scheme. The apparatus includes an analog beam-forming operating unit configured to change the analog beam for a counterpart device for which use of a next frame is to be permitted, upon receiving a request for using the next frame from at least one of multiple devices that transmit and receive signals in units of frames and a communication unit configured to transmit information indicating that the analog beam is changed to permit the use of the next frame by the counterpart device to the multiple devices. | 12-18-2014 |