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Chang Yong
Chang Yong Jo, Gyeongsangnam-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20090308508 | Heat Treatment Method of a Ni-Based Superalloy for Wave-Type Grain Boundary and a Ni-Based Superalloy Produced Accordingly - The present invention suggests a method of heat treatment of a Ni-based superalloy that improves resistance against creep, fatigue and stress corrosion cracking while being economical and easy, and a Ni-based superalloy produced by using the same. The method and the superalloy of the present invention include solution treatment at the high temperature region during a heat treatment process after manufacturing or final cold working fabrication. Immediately following the solution treatment, the material is slowly cooled at 1˜15° C./minute down to the intermediate temperature region for aging treatment. After the slow cooling stage, aging treatment is directly performed by holding it at the intermediate temperature region for the prescribed time. Lastly, the aging treatment is followed by air-cooling stage. | 12-17-2009 |
Chang Yong Jo, Kyunsamgnam-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20100019145 | Apparatus of Measuring the Orientation Relationship Between Neighboring Grains Using a Goniometer in a Transmission Electron Microscope and Method for Revealing the Characteristics of Grain Boundaries - An apparatus and method for measuring the crystallographic orientation relationship of neighboring grains and the characteristics of grain boundaries using a goniometer of a transmission electron microscope are disclosed to check the orientation relationship between two crystals and the characteristics of grain boundaries with a small error in real time. An apparatus for measuring the orientation relationship between neighboring grains and the characteristics of grain boundaries by using a goniometer of a transmission electron stereoscope, the apparatus comprising a goniometer mounted at a transmission electron microscope and a measurement unit for revealing the characteristics of grain boundaries of a specimen by linear-algebraically interpreting the relationship between crystal axes and tilt axes of the specimen using the goniometer. | 01-28-2010 |
Chang Yong Kim, Gwangju KR
| Patent application number | Description | Published |
|---|---|---|
| 20100270902 | DOOR GUARD ASSEMBLY AND REFRIGERATOR HAVING THE SAME - Disclosed herein are a door guard assembly and a refrigerator having the same. In the door guard assembly, one side of a storage space of the door guard where food is stored is formed of a wooden material so that humidity of the storage space is adjusted. | 10-28-2010 |
Chang Yong Kwon, Taean-Gun KR
| Patent application number | Description | Published |
|---|---|---|
| 20110084789 | TRANSFORMER AND TRANSFORMER ASSEMBLY - A transformer includes: a bobbin on which a coil is wound; a core coupled with the bobbin to provide a magnetic flux and installed on the PCB in a penetrating manner; and a base plate electrically connected to the coil and having a lead frame connected to the PCB, wherein the lead frame is formed such that the base plate is separated from an upper surface of the PCB. | 04-14-2011 |
| 20110193668 | TRANSFORMER AND TRANSFORMER ASSEMBLY - A transformer includes: a bobbin on which a coil is wound; a core coupled with the bobbin to provide a magnetic flux, at least a portion of the core being installed on the PCB in a penetrating manner; and a base plate electrically connected to the coil and having a lead frame connected to the PCB, wherein the base plate is installed to be reversedly disposed at an upper side of the bobbin on the PCB, a space is formed between a lower surface of the base plate and an upper surface of the PCB, and the space between the lower surface of the base plate and the upper surface of the PCB is supported by a support member in contact with the upper surface of the PCB. | 08-11-2011 |
Chang Yong Oh, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20110045867 | DUAL-STANDBY TERMINAL WITH A PLURALITY OF LOW-NOISE AMPLIFIERS AND METHOD FOR OPERATING WIRELESS COMMUNICATION UNIT THEREOF - A dual-standby terminal and a method for operating wireless communication unit are disclosed. The dual-standby terminal includes: a plurality of wireless communication units; a plurality of low-noise amplifiers located on reception paths of the wireless communication units, respectively; and a controller. The controller enables all of the plurality of low-noise amplifiers when the dual-standby terminal performs a simultaneous call. The controller also enables part of the plurality of low-noise amplifiers when the dual-standby terminal performs a single call or is operated in a standby state. | 02-24-2011 |
Chang-Yong Ahn, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110035191 | METHOD AND DEVICE FOR CALCULATING QUALITY-VALUE OF IN-BUILDING MOBILE COMMUNICATION SERVICE - A method of calculating a quality-value of a mobile communication service is disclosed. In one embodiment, the method includes i) loading an engineering design of the building into a memory of a computing device having a graphic user interface (GUI), ii) applying an engineering factor which influences a quality of the mobile communication service on the engineering design when a communication device, configured to provide the mobile communication service, is set up in the building; and iii) calculating, with a processor of the computing device, the quality-value of the mobile communication service based on the applied engineering factor. | 02-10-2011 |
Chang-Yong Jeong, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090212295 | SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME - A semiconductor device and method of fabricating the same, which forms a contact hole, a via hole or a via contact hole with multiple profiles with various taper angles. The semiconductor device includes a substrate, a thin film transistor formed on the substrate and having a semiconductor layer, a gate insulating layer, a gate electrode, and an interlayer dielectric, and a contact hole penetrating the gate insulating layer and the interlayer dielectric and exposing a portion of the semiconductor layer. The contact hole has a multiple profile in which an upper portion of the contact hole has a wet etch profile and a lower portion of the contact hole has at least one of the wet etch profile and a dry etch profile. | 08-27-2009 |
| 20090275176 | SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME - A semiconductor device and method of fabricating the same, which forms a contact hole, a via hole or a via contact hole with multiple profiles with various taper angles. The semiconductor device includes a substrate, a thin film transistor formed on the substrate and having a semiconductor layer, a gate insulating layer, a gate electrode, and an interlayer dielectric, and a contact hole penetrating the gate insulating layer and the interlayer dielectric and exposing a portion of the semiconductor layer. The contact hole has a multiple profile in which an upper portion of the contact hole has a wet etch profile and a lower portion of the contact hole has at least one of the wet etch profile and a dry etch profile. | 11-05-2009 |
Chang-Yong Jung, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090067389 | RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD FOR UWB IMPULSE COMMUNICATION - Provided is a radio communication system for ultra wideband (UWB) impulse communications and a radio communication apparatus and method thereof. The present patent provides a radio communication system that can minimize power consumption by eliminating a need for carrier detection and sharing transmission/reception time information in UWB impulse communications. The system includes a network coordinator; and one or more devices communicating on a superframe basis in subordination to the network coordinator. The devices perform data transmission/reception in predetermined time slots and then they are inactivated to thereby reduce power consumption. | 03-12-2009 |
Chang-Yong Kim, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110050840 | APPARATUS, SYSTEM AND METHOD FOR VIDEO CALL - Provided are an apparatus, system and method for facilitating a video call between a first caller and a second caller, the apparatus including: an image sensor which captures an image of the first caller; a display which displays an image of the second caller; a microphone which captures audio input by the first caller; a speaker which plays audio input by the second caller; a detector which is operable to determine a location of the first caller; and a controller which controls the detector to determine the location as corresponding to an original location, wherein if the first caller changes from the original location to a new location, the controller controls the detector to determine the location as being the new location and controls the microphone to readjust based on the determined new location of the first caller. | 03-03-2011 |
Chang-Yong Kim, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090217339 | FAST ADAPTIVE CHANNEL CONVERTING METHOD AND APPARATUS, AND COMPUTER READABLE RECORDING MEDIUM FOR EXECUTING THE FAST ADAPTIVE CHANNEL CONVERTING METHOD - A fast adaptive channel converting method and apparatus, and a computer readable recording medium having recorded thereon a program to execute the fast adaptive channel converting method. The fast adaptive channel converting method includes generating adjacent channel data by pre-signal processing an adjacent channel signal of a reference channel, receiving a channel change request from a user, searching for channel data corresponding to a changed channel in the adjacent channel data, and reproducing the searched channel data. Unlike a conventional technology, the fast adaptive channel changing apparatus and method prevents a screen blank time that may occur while changing a channel in a digital broadcast receiving apparatus, and thus boredom or inconvenience of a user can be removed. Also, when a channel is changed by using a preferred channel list, a channel search time can be remarkably reduced, and the user can easily watch a program of a preferred channel. | 08-27-2009 |
| 20110193933 | Apparatus, System and Method for Video Call - An apparatus, system and method for implementing a video call between a first caller and a second caller are provided. The apparatus includes: an image sensor which captures an image of the first caller; a display which displays an image of the second caller; a microphone which captures an audio input by the first caller; a speaker which outputs an audio input by the second caller; a detector which is configured to determine a location of the first caller; and a controller which controls the detector to determine the location of the first caller as corresponding to an original location, wherein in response to the first caller changing a location from the original location to a new location, the controller controls the detector to determine the location of the first caller as being the new location, and controls the microphone to adjust a configuration of the microphone based on the new location of the first caller. | 08-11-2011 |
Chang-Yong Kim, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20120041462 | APPARATUS FOR FORMING HOLE IN SPONGELIKE BONE - Disclosed herein is an apparatus for forming a hole in a spongelike bone. The apparatus includes a catheter tube, an expansible structure coupled to a front end of the catheter tube, a hub having a fitting coupled to a rear end of the catheter tube, and a probe. The catheter tube includes the probe and one lumen surrounding the probe, both of which are disposed inside the catheter tube. The probe is fixed to the hub or a rear cap of the hub at a rear end thereof and comes into contact with an inner front end of the expansible structure at a front end thereof. | 02-16-2012 |
Chang-Yong Son, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100036658 | Speech compression and decompression apparatuses and methods providing scalable bandwidth structure - A speech compression apparatus including: a first band-transform unit transforming a wideband speech signal to a narrowband low-band speech signal; a narrowband speech compressor compressing the narrowband low-band speech signal and outputting a result of the compressing as a low-band speech packet; a decompression unit decompressing the low-band speech packet and obtaining a decompressed wideband low-band speech signal; an error detection unit detecting an error signal that corresponds to a difference between the wideband speech signal and the decompressed wideband low-band speech signal; and a high-band speech compression unit compressing the error signal and a high-band speech signal of the wideband speech signal and outputting the result of the compressing as a high-band speech packet. | 02-11-2010 |