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Hyeon, KR

Byeong-Bae Hyeon, Daejeon KR

Patent application numberDescriptionPublished
20090085889PORTABLE COMMUNICATION DEVICE HAVING A TOUCH KEY - A portable communication device having a panel and a touch key with a touch sensor pad integrally attached to the panel is provided. More particularly, the portable communication device includes a panel, a printed circuit board, and a control unit, wherein the portable communication device includes one or more touch sensor pads disposed on the panel for detecting a touch of the panel and for generating respective signals corresponding to the detection, and one or more connection terminals provided with the touch sensor pads, respectively, the one or more connection terminals for electrically connecting to one or more interconnection devices on the printed circuit board, respectively, for applying the signals from the touch sensor pads to the control unit.04-02-2009

Byeongcheol Hyeon, Gyeongsanbuk-Do KR

Patent application numberDescriptionPublished
20090309861POWER SUPPLY AND PLASMA DISPLAY DEVICE HAVING THE SAME - A power supply and a plasma display device having the power supply is disclosed. The power supply reduces power used in a power factor correction unit and a DC converter by distributing the total power of the power supply between the power factor correction unit and the DC converter.12-17-2009

Changho Hyeon, Seoul KR

Patent application numberDescriptionPublished
20090001877ORGANIC LIGHT EMITTING DEVICE - An organic light emitting device is disclosed. The organic light emitting device includes a first substrate, a display unit that is positioned on the first substrate and includes a plurality of subpixels, a second substrate facing the first substrate, a seal member attaching the first substrate to the second substrate, and at least one projection. The seal member substantially has a water vapor permeation rate of 1001-01-2009

Chang Ho Hyeon, Yongin-Si KR

Patent application numberDescriptionPublished
20080231565Light emitting display device and driving method thereof - A method of driving an organic light emitting display device includes: receiving an image signal by sub-field with respect to a single frame comprising the N number of sub-fields (N is a natural number greater than 2) from the exterior; dividing a single sub-field into an address period and a display period and selectively calling a data signal of a single sub-field from the M number of sub-field memories (M is a natural number greater than 2); and applying the called data signal of the single sub-field to a sub-pixel.09-25-2008
20090134765DISPLAY DEVICE - A display device and a temperature control unit having the same are disclosed. The display device includes a substrate with a display element, and a transparent plate which is in contact with the substrate and has a larger area than that of the substrate.05-28-2009

Patent applications by Chang Ho Hyeon, Yongin-Si KR

Seog San Hyeon, Seoul KR

Patent application numberDescriptionPublished
20110172505CARDIOVASCULAR ANALYZER - The present invention relates to a cardiovascular diagnostic system which enables early detection of cardiovascular diseases and defines their causes. Unlike known electrocardiographs, the cardiovascular diagnosis system can further measure elastic coefficient of blood vessels (the degree of arteriosclerosis), blood vessel compliance, blood flow, and blood flow resistance and velocity in blood vessel branches of the right and left coronary arteries. The elastic coefficient shows organic changes to blood vessels. The compliance shows organic and functional changes of blood vessels simultaneously. The blood flow shows blood flow resistance.07-14-2011

Seong-Yeol Hyeon, Gimhae-Si KR

Patent application numberDescriptionPublished
20100242721LINEAR COMPRESSOR - The present invention provides a linear compressor, including: a cylinder having a compression space of refrigerant therein; a piston linearly reciprocated inside the cylinder to compress the refrigerant; a supporter connected to the back of the piston; a plurality of front and rear main springs for elastically supporting the supporter; a motor cover installed at the front of the supporter with a predetermined interval in an axis direction to support the front main springs, a pair of supporting ends being formed by partially cutting an inner portion of the motor cover and bent backward; and a rear cover installed at the back of the supporter with a predetermined interval in an axis direction to support the rear main springs, and fixedly welded to the supporting ends of the motor cover. Unnecessary parts of the motor cover can be welded to the rear cover to prevent a material loss, and a mass-production process can be simplified to improve productivity.09-30-2010
20100310393STATOR FOR LINEAR COMPRESSOR - A stator for a linear compressor comprises a coil winding, in which a coil winds in a circumference direction and current flows; a bobbin set, which is wound with the coil winding and which insulates the coil winding; and a plurality of core blocks, which are arranged in a circumference direction of the bobbin set at predetermined intervals from an axial direction of the bobbin set, which is advantageously used for simplifying the manufacturing process, enhancing the clamping force, cutting an overall production cost, and reducing the size of a product incorporating the same.12-09-2010
20100316513LINEAR COMPRESSOR - A linear compressor comprises: a fixed member including a cylinder for providing a refrigerant compression space; a movable member, which includes a piston for compressing refrigerant inside the cylinder and a supporter composed of a center portion being aligned with a center of the piston and a support portion extended radially of the piston and which makes a linear reciprocating movement about the fixed member; a plurality of mainsprings supported on the support portion of the supporter, for elastically supporting the piston in an axial direction; and a mass member, which includes a center portion to couple with the center portion of the supporter and a plurality of ends extended from the center portion to maintain an air-gap towards the support portion of the supporter and towards the mainsprings. The linear compressor of the present invention can accommodate a maximum mass member in a defined space of a linearly reciprocating movable member, so material loss is prevented and more installation space can be secured.12-16-2010

Seung Heon Hyeon, Busan KR

Patent application numberDescriptionPublished
20090290482METHOD FOR ESTIMATING TRANSMISSION DELAY AND RECEIVER USING THE SAME - There is provided a receiver for processing a ranging channel. The receiver includes a Fourier transformer for transforming a received signal into a frequency domain signal, a ranging channel extraction and ranging code elimination unit for extracting a ranging channel from the frequency domain signal, and eliminating a code of a ranging code from the ranging channel and a ranging channel processor for estimating transmission delay or transmission power from a time domain signal. By estimating transmission delay and/or transmission power in a time domain, it is possible to rapidly and accurately adjust the transmission delay and transmission power intensity in the ranging procedure.11-26-2009

Seung-Heon Hyeon, Seoul KR

Patent application numberDescriptionPublished
20100246727Multi-Antenna Subsystem for Software Defined Radio - The present invention relates to a multi-antenna subsystem for a SDR (software defined radio) capable of supporting a multi-antenna technique to an antenna system using a multi-antenna subsystem. The multi-antenna subsystem of a multi-antenna system includes an algorithm executing unit for carrying out an algorithm for a multi-antenna technique to be required in the multi-antenna system, a frame synchronization unit for a synchronization acquisition, and a control unit for controlling the algorithm executing unit and the frame synchronization. The algorithm executing unit has a plurality of functional blocks and the functional block has state information, which can be referred by other functional blocks, for supporting SDR system.09-30-2010

Su-Gyeong Hyeon, Suwon-Si KR

Patent application numberDescriptionPublished
20110145745METHOD FOR PROVIDING GUI AND MULTIMEDIA DEVICE USING THE SAME - A method for providing a graphical user interface (GUI) and a multimedia device using the same, the method including: determining if a user command is input to select a specific section of a GUI item including a plurality of sections; and extending a length of the selected section and reducing lengths of non-selected sections if it is determined that the user command is input to select the specific section of the GUI item. Therefore, the user can manipulate the GUI item more precisely.06-16-2011

Taeghwan Hyeon, Seoul KR

Patent application numberDescriptionPublished
20100228045BIOCOMPATIBLE SUSPENSION STABILIZER FOR DISPERSING INORGANIC NANOPARTICLES INTO AQUEOUS SOLUTION - The present invention relates to a suspension stabilizer for dispersing inorganic nanoparticles into aqueous medium. More particularly, the present invention is directed to a biocompatible suspension stabilizer which comprises phosphoryl domain having an affinity to the surface of an inorganic nanoparticle and poly(ethylene glycol) having an affinity to the aqueous medium, and which is prepared by reacting a biocompatible poly(ethylene glycol)-derivatized polymer with phosphine oxide having a leaving group.09-09-2010
20100247423GOETHITE NANOTUBE AND PROCESS FOR PREPARING THEREOF - The present invention relates to a goethite nanotube. Particularly, the present invention is directed to goethite nanotubes, which can be used as a catalyst relating to environment or a drug delivery system, and process for preparing the goethite nanotube, and process for preparing magnetite and hematite nanoparticles.09-30-2010
20110098453MAGNETIC NANOCOMPOSITE, AND PROCESS FOR SELECTIVE BINDING, SEPARATION AND PURIFICATION OF PROTEIN USING THE SAME - The present invention relates to a magnetic nanocomposite, a process for production thereof, a reusable protein-binding agent for separation of a protein including the magnetic nanocomposite, and a process for selective binding, separation and purification of a protein using the magnetic nanocomposite. In particular, the present invention is directed to a magnetic nanocomposite with a magnetic nanoparticle core of a magnetic nanoparticle, a silica shell coating said core, and a nanoparticle layer of a fourth period transition metal oxide, which coats said silica shell, a process for production of the magnetic nanocomposite, a reusable protein-binding agent the magnetic nanocomposite, and a process for selective binding, separation and purification of a protein using the magnetic nanocomposite.04-28-2011

Patent applications by Taeghwan Hyeon, Seoul KR

Wook Hyeon, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20100149539APPARATUS FOR SENSING PRECIPITATION DENSITY OF SLUDGE IN WASTE WATER TREATMENT TANK AND METHOD THEREFOR - The present invention relates to an apparatus for sensing precipitation density of sludge in a wastewater treatment tank, more particularly to an apparatus and method for precisely taking density of sludge precipitated in a wastewater treatment tank without being contaminated by sludge. The present invention of an apparatus for sensing precipitation density of sludge in a waste water treatment tank comprises a container which is tube-shaped with a bottom thereof open and submerged in wastewater as filled with gas therein; and a sensor which is installed in the space in the container, and senses sludge density as not directly contacting with wastewater.06-17-2010

Yong Cheol Hyeon, Namyangju-Si KR

Patent application numberDescriptionPublished
20110092820PROBE OF ULTRASONIC DIAGNOSTIC APPARATUS AND CONTROL METHOD THEREOF - A probe of an ultrasonic diagnostic apparatus and a method of controlling the same are disclosed. The probe includes a transducer movably disposed inside a housing of the probe, a detector detecting movement of the probe, and a drive unit controlling operation of the transducer in response to an output from the detector. Acceleration of the probe is measured to adjust intensity of a holding current in order to suppress operation of the transducer depending on the acceleration of the probe, so that, if there is no movement of the probe, a low holding current is output to increase a transmission current by suppressing heat generation, thereby improving image quality.04-21-2011

Yong Cheol Hyeon, Seoul KR

Patent application numberDescriptionPublished
20110071398THREE-DIMENSIONAL PROBE APPARATUS - An ultrasound probe includes an elongated member having a longitudinal axis and a distal housing; a transducer having a transducing surface, the transducer pivotally disposed in the housing and configured so that the transducing surface is capable of selectively rotating between a first position perpendicular to the longitudinal axis and a second position at least collinear with the longitudinal axis; a transmission unit coupled to the transducer to rotate the transducer between the first and second positions; and a location detector coupled to the transmission unit to provide a signal corresponding to an orientation of the transducer between the first and second positions.03-24-2011