Byung-Chan
Byung Chan Bae, Seoul KR
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20140023952 | METHOD FOR PREPARING CATALYST LAYER BY IN-SITU SOL-GEL REACTION OF TETRAETHOXYSILANE IN NAFION IONOMER SOLUTION - Provided are a method for preparing a catalyst layer by an in-situ sol-gel reaction of tetraethoxysilane, and a fuel cell including the catalyst layer prepared thereby. Addition of silica mitigates specific adsorption of sulfonate groups contained in a Nafion ionomer on a Pt catalyst layer in a high-voltage region where the role of a catalyst predominates, resulting in improvement of ORR performance. | 01-23-2014 |
20140080022 | Apparatus and Method for Managing Fuel Cell Vehicle System - Provided are an apparatus and a method for managing a fuel cell vehicle system, and more particularly, an apparatus and a method for managing a fuel cell vehicle system capable of optimally maintaining a driving method based on environmental information and product information. | 03-20-2014 |
20140080023 | Apparatus and Method for Managing Stationary Fuel Cell System - Provided are an apparatus and a method for managing a stationary fuel cell system, and more particularly, an apparatus and a method for managing a stationary fuel cell system capable of optimally maintaining a driving method based on environmental information and product information. | 03-20-2014 |
Byung Chan Jang, Gumi-Si KR
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20150263774 | METHOD OF PROVIDING ANTENNA BY USING COMPONENT IN ELECTRONIC DEVICE AND THE ELECTRONIC DEVICE THEREFOR - An electronic device is provided. The electronic device includes a control signal generation unit configured to generate a control signal corresponding to a user input, a signal transmission unit configured to transmit the generated control signal to a signal processing unit, the signal processing unit configured to process the transmitted control signal, and a ground connection unit configured to connect a ground plate of the signal transmission unit and a ground plate of the signal processing unit, wherein the ground plate of the signal transmission unit and the ground plate of the signal processing unit are spaced from each other and the ground plate of the signal transmission unit is used as a radiator. | 09-17-2015 |
Byung Chan Kang, Downey, CA US
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20080216122 | System and method for selection of content source upon device power-on - A system and method for determining which program to display from multiple content sources at a power-on event of a content display device at a certain location is disclosed. In one embodiment, the method includes receiving metadata containing content information about multiple programming available from multiple content sources on an integrated network. The content information can be analyzed so as to determine if any of the programming satisfies rules pertaining to programming appropriate for the location of the display device within a home. The content information can be analyzed in advance such that when a power-on command is received at the content display device, a program that has been determined to satisfy the rules is displayed on the display device. | 09-04-2008 |
20080276277 | Method and system for presenting television program guide information based on viewer usage patterns - A method and system for presenting television program guide information is provided. A program guide is obtained, and program viewing patterns of a viewer are monitored. Information from the program guide is selectively presented to the viewer based on the viewing patterns. Selectively presenting information from the program guide includes displaying a listing of channels viewed more frequently on a guide screen in descending order of viewing frequency. | 11-06-2008 |
20090204995 | SYSTEM AND METHOD FOR FILTERING A TELEVISION CHANNEL LIST BASED ON CHANNEL CHARACTERISTICS - A system and method for automatically managing television channel lists is disclosed. Pixel resolutions characteristics of a plurality of televisions channels are analyzed. One or more high definition television (HDTV) channels having HD pixel resolutions from the plurality of available television channels are selected. The one or more selected HDTV channels are stored in a HD channel list. | 08-13-2009 |
20100013996 | METHOD AND SYSTEM FOR THEME-BASED SETTINGS FOR A DISPLAY DEVICE - A method and system for controlling settings for an electronic device, is provided. One implementation involves detecting access to audio/visual content using the device, identifying a theme associated with the content, retrieving a set of device settings associated with the identified theme, and dynamically applying the retrieved settings to the device during access to the content. | 01-21-2010 |
20120272257 | SYSTEM AND METHOD FOR SELECTION OF CONTENT SOURCE UPON DEVICE POWER-ON - Selection of audiovisual (multimedia) programming to display on a content display device (e.g., a TV) upon a power-on signal at the content display device is described. Content to display on content display device is determined at a power-on event. The content is determined to satisfy a set of rules governing the type of content that is appropriate to display on the content display device. Rules pertain to content appropriate for a content display device located in a specific room of a house or building. Other embodiments include rules pertaining to content appropriate for displaying on the content display device at various times of day. | 10-25-2012 |
20140289776 | SYSTEM AND METHOD FOR FILTERING A TELEVISION CHANNEL LIST BASED ON CHANNEL CHARACTERISTICS - A system and method for automatically managing television channel lists is disclosed. Pixel resolutions characteristics of a plurality of televisions channels are analyzed. One or more high definition television (HDTV) channels having HD pixel resolutions from the plurality of available television channels are selected. The one or more selected HDTV channels are stored in a HD channel list. | 09-25-2014 |
Byung Chan Kim, Seoul KR
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20130132074 | METHOD AND SYSTEM FOR REPRODUCING AND DISTRIBUTING SOUND SOURCE OF ELECTRONIC TERMINAL - There is provided a method of reproducing and distributing a sound source of en electronic terminal. The method includes a step of starting to simultaneously reproduce a stream of an MR (Music Recorded) sound source file and a stream of an AR (All Recorded) sound source file that a voice is recorded to be added to the MR sound source file by a reproducing unit of the electronic terminal, and outputting one stream of the streams through an output unit; and a step of controlling the reproducing unit to stop the output of the one stream that is currently being output through the output unit and to output the other stream through the output unit by a reproducing switch unit of the electronic terminal based on a selection of a user while the stream of the MR sound source file and the stream of the AR sound source file are reproduced, respectively. | 05-23-2013 |
Byung Chan Kim, Yongin-Si KR
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20130098401 | ROBOT CLEANER AND CONTROL METHOD FOR THE SAME - A robot cleaner includes a body to travel on a floor, an obstacle sensing unit to sense an obstacle approaching the body, an auxiliary cleaning unit mounted to a bottom of the body, to be extendable and retractable, and a control unit to control extension or retraction of the auxiliary cleaning unit when the obstacle is sensed. The control unit recognizes a zone of a charger and performs a control operation to prevent the auxiliary cleaning unit from extending in the charger zone. | 04-25-2013 |
20140304937 | SENSOR MODULE AND ROBOT CLEANER HAVING THE SAME - A sensor module and a robot cleaner including the sensor module may provide accurate sensing of an obstacle and prevent an erroneous sensing of an obstacle. The robot cleaner may include a body including a cleaning unit to remove foreign substances from a surface of a floor, a cover to cover an upper portion of the body, a sensor module including an obstacle sensor mounted to sense an obstacle, and a sensor window provided at one side of the sensor module. The sensor module may include a light emitting device to emit light through the sensor window, a light receiving reflector on which light reflected from the obstacle is incident, and a light shielding portion interposed between the light emitting device and the light receiving reflector to block the light emitted from the light emitting device from being incident upon the light receiving reflector. | 10-16-2014 |
Byung Chan Kim, Miryang-Si KR
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20100037659 | CONTROLLER EFFECTIVELY CONTROLLING THE POWER FOR A WASHING MACHINE OR A DRYER, AND A METHOD FOR DOING THE SAME - The present invention relates to a controller effectively controlling the power for a washing machine and a drier, and a method of doing the same. More particularly, it relates to a controller for a washing machine or a dryer, and a method for supplying the power so that a washing machine and a drier as a one body may perform an optimal efficiency in a range of a current limit, when supplied the power by the same power source. A controller for a washing machine comprising a micom; and communication means for communicating with a controller of a dryer. A controller for a dryer comprising a micom; and communication means for communicating with the controller of the washing machine. | 02-18-2010 |
Byung Chan Kim, Yongin KR
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20130092190 | ROBOT CLEANER AND CONTROL METHOD FOR THE SAME - A robot cleaner includes a body to travel on a floor, an obstacle sensing unit to sense an obstacle approaching the body, an auxiliary cleaning unit mounted to a bottom of the body, to be extendable and retractable, and a control unit to control extension or retraction of the auxiliary cleaning unit when the obstacle is sensed, through adjustment of an extension or retraction degree of the auxiliary cleaning unit. | 04-18-2013 |
20130263889 | ROBOT CLEANER AND METHOD OF CONTROLLING THE SAME - A robot cleaner that automatically removes dust accumulated on a floor while navigating a cleaning area, and a method of controlling the robot cleaner, includes a main body that navigates a floor; a first detector that detects an obstacle getting closer to the main body; an auxiliary cleaner that is mounted on the main body to protrude and retract; a second detector that detects a protrusion state or a retraction state of the auxiliary cleaner; and a controller that determines an abnormal operation of the auxiliary cleaner based on a result of the detection of the second detector and controls a protrusion operation or a retraction operation of the auxiliary cleaner according to a result of the determination. | 10-10-2013 |
Byung Chan Moon, Incheon KR
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20140149143 | METHOD FOR PROVIDING PERSONALIZED DIETARY COMPLIANCE RATE BASED ON HEALTH INFORMATION - A method and system provide personalized dietary compliance rate based on health information. The method may include: (a) transmitting health information from a hospital's information system to a service operating server; (b) identifying a disease using the health information by the service operating server; (c) selecting food in a user's terminal and determining the degree of correlation between the disease and nutrients of the selected food; and (d) determining dietary compliance rate based on the degree of correlation and providing the dietary compliance rate and the nutritional information of the food to the user's terminal. Dietary compliance rate can be provided via a mobile device and web, thus remote patient monitoring is possible, and consultation procedures are simplified using system's care information and on-line real-time Q & A. Additionally, due to continuous care, both physical and mental stability can be provided, increasing a patient's confidence. | 05-29-2014 |
Byung Chan Park, Ansan-Si KR
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20150139764 | EMPTY VEHICLE LIFTER FOR VEHICLE ASSEMBLY LINE - Disclosed is an empty vehicle lifter for a vehicle assembly line. The empty vehicle lifter for a vehicle assembly line may lift a vehicle in an empty vehicle condition in a vehicle assembly line, and may include: i) four post frames which are substantially vertically installed on a floor of a working place while corresponding to wheels of the vehicle, ii) a ceiling frame which is connected to upper end portions of the post frames, iii) a tire ground contact unit which supports a wheel tire of the vehicle, and is installed on each of the post frames so as to be movable upward and downward, and iv) a lift unit which is installed on the ceiling frame so as to move the tire ground contact unit upward and downward. | 05-21-2015 |
Byung Chan Yoo, Gyeonggi-Do KR
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20140316492 | LED PHOTOTHERAPY APPARATUS FOR SKIN - Disclosed therein is an LED phototherapy apparatus for skin including: a support part on which a user lies with the back of the head; a rotation part rotatably hinge-coupled to the support part, the rotation part having a space for accommodating the user's head; a light emitting member formed inside the rotation part; and a control circuit part adapted for supplying electric power to the light emitting member and controlling light intensity and irradiation time. The LED phototherapy apparatus can be utilized as a pillow enabling a user to take sleep on the pillow and irradiate light of wavelength helpful to the skin of the face, the scalp or the neck in the user's sleep so as to provide skin improvement and treatment effects. | 10-23-2014 |
Byung Chan Yoo, Bucheon-Si KR
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20100176536 | MOLDING APPARATUS AND METHOD - Disclosed are an apparatus and method for molding an object. An object is compressed by an upper mold and a lower mold base part to form a top surface of a product, and the upper mold and the lower mold base part descend in a state where the object is compressed to form a lateral surface of the product through lateral surfaces of the upper mold and a lower mold. | 07-15-2010 |
Byung-Chan Ahn, Seoul KR
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20080207122 | APPARATUS AND METHOD FOR DETERMINING AN UPLINK TRANSMISSION FORMAT IN A BROADBAND WIRELESS COMMUNICATION SYSTEM - An apparatus and method in a broadband wireless communication system are provided. The apparatus includes a Base Station (BS) which includes a manager for increasing a set point associated with a Mobile Station (MS) if an error is detected in a burst received from the MS, a detector for incrementing a counter associated with the MS if a difference, between a maximum Transmission (Tx) power of the MS and a Tx power used by the MS when transmitting the burst in which the error was detected, is less than a difference threshold, and a determining unit for providing control such that a number of slots allocated to the MS decreases if the counter associated with the MS is greater than a counter threshold. | 08-28-2008 |
20100091730 | APPARATUS AND METHOD FOR DETERMINING UPLINK SCHEDULING PRIORITY IN BROADBAND WIRELESS COMMUNICATION SYSTEM - An apparatus and method for determining an uplink scheduling priority in a broadband wireless communication system are provided. The apparatus includes a basic priority determination unit for calculating a basic priority metric of at least one Mobile Station (MS), a calculation unit for calculating a correction value for considering an interference level with respect to the basic priority metric by using downlink channel quality of each MS, and a final priority determination unit for determining an uplink scheduling priority by calculating a final priority metric by using the correction value. | 04-15-2010 |
20100130244 | APPARATUS AND METHOD FOR CONTROLLING DATA TRANSMISSION RATE IN BROADBAND WIRELESS COMMUNICATION SYSTEM - An apparatus and a method for controlling a data transmission rate in a broadband wireless communication system are provided. In the method, an interference factor representing an interference degree by an external sector is measured. Interference given to the external sector is estimated using the interference factor, an interference weight depending on a location of a terminal, and an amount of wireless resource use of a self sector. A data transmission rate is determined with consideration of an interference estimation value and a wireless channel state of the terminal. | 05-27-2010 |
20100197297 | Apparatus and method for measuring uplink thermal noise power and uplink interference power in wireless communication system - An apparatus for use in a base station capable of checking whether a frequency is illegally used in a wireless communication system are provided. Operations of the base station for checking whether the frequency is illegally used includes setting a silence interval in which a resource is not allocated to a terminal, using silence interval setting information provided from a system manager; when the silence interval arrives, measuring RSSI; and transmitting the RSSI to the system manager to examine at least one of a frequency illegal use and a reception path error using the RSSI. | 08-05-2010 |
20110182258 | METHOD AND BASE STATION FOR ALLOCATING DOWNLINK HARQ CHANNEL IN WIRELESS COMMUNICATION SYSTEM - A method and base station are provided for allocating a Hybrid Automatic Repeat Request (HARQ) channel according to service flow types. The method allocates a DownLink (DL) HARQ channel by a base station to a mobile station which can be provided with data corresponding to at least one Service Flow (SF) in a wireless communication system. At least one of a plurality of HARQ channels is mapped to a first SF. It is determined whether to allocate the mapped at least one HARQ channel as a dedicated HARQ channel of the first SF based on whether traffic of the first SF exists in a transmission queue corresponding to the first SF. Therefore, dedicated HARQ channels for a delay intolerant SF, such as a Voice over Internet Protocol (VoIP) SF, can be managed without loss of a maximum throughput for a delay tolerant SF such as a Best Effort (BE) SF. | 07-28-2011 |
20110194512 | METHOD AND APPARATUS FOR RESOURCE ALLOCATION SCHEDULING IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for resource allocation scheduling in a wireless communication system are provided. The apparatus includes a scheduler for, if an UpLink (UL) scheduling for scheduling an allocation order of UL resources is performed prior to a DownLink (DL) scheduling for scheduling an allocation order of DL resources, setting a size α representing a size in which a DL burst region is maximally allocated in a DL sub frame, for, if the DL scheduling is performed prior to the UL scheduling, setting a size β representing a size in which the DL burst region is maximally allocated in the DL sub frame, for determining whether to discard a DL Medium Access Control (MAC) management message to be transmitted by using the size β, and for, if it is not determined to discard the DL MAC management message, determining a priority of a DL scheduling and a UL scheduling by using the size α and first performing one of the DL scheduling and the UL scheduling in accordance with the determined priority. | 08-11-2011 |
20110218002 | APPARATUS AND METHOD FOR CONTROLLING UPLINK INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and a method for controlling uplink interference in a wireless communication system. The method for controlling the uplink interference includes determining at least one interference signal power threshold determined by at least one neighbor Base Station (BS). The method also includes determining a transmit power offset for at least one serviced Mobile Station (MS) using the at least one interference signal power threshold. The method further includes sending the transmit power offset for the at least one MS to the at least one MS. | 09-08-2011 |
20110249715 | APPARATUS AND METHOD FOR SAVING POWER CONSUMPTION IN BROADBAND WIRELESS COMMUNICATION SYSTEM - An apparatus and method reduce power consumption in a broadband wireless communication system. A transmitting end apparatus that includes a plurality of transmit (Tx) antennas includes a control block, a Processor (DSP) block, a modem block, and at least one power controller. The control block determines a traffic amount based on an amount of used resources. The Digital Signal Processor (DSP) block performs scheduling by using a subset of Tx antennas and a subset of resources on a frequency axis if the traffic amount is less than a threshold. The modem block applies boosting to a signal transmitted using the subset of resources. And at least one controller turns off an operation of at least one power amplifier that corresponds to at least one Tx antenna that is not included in the subset of Tx antennas. | 10-13-2011 |
20110268065 | APPARATUS AND METHOD FOR IMPROVING TRANSMISSION EFFICIENCY IN WIRELESS COMMUNICATION SYSTEM - An apparatus and a method for scheduling resources in a wireless communication system are provided. A Modulation and Coding Scheme (MCS) level of resource allocation information of one or more terminals is determined. A temporary MCS level for resource allocation information of a frame is determined by considering an MCS level for resource allocation information of a k-th terminal of the set of terminals. A resource amount for allocating data is determined by considering the temporary MCS level. Whether a resource is allocable to the k-th terminal is determined by considering the resource amount for the data allocation. And when the resource is allocable to the k-th terminal, the MCS level of the resource allocation information of the frame is determined by considering the MCS level of the resource allocation information of the k-th terminal. | 11-03-2011 |
20120195272 | APPARATUS AND METHOD FOR AVOIDING DOWNLINK INTERFERENCE FROM INTERFERING BASE STATION IN MOBILE COMMUNICATION SYSTEM - A method for avoiding interference of an interfering Base Station (BS) in an interfered BS of a mobile communication system includes determining an interference value of an interfering BS at a control region during a determination interval. When the interference value is greater than a threshold value, the method further includes operating in a modified Transmit/receive Transition Gap (TTG) mode. When the interference value is less than the threshold value, the method further includes operating in a general TTG mode. | 08-02-2012 |
20120196642 | APPARATUS AND METHOD FOR CONTROLLING INTERFERENCE VIA INFORMATION EXCHANGE BETWEEN BASE STATIONS IN COMMUNICATION SYSTEM - An apparatus and a method control interference via inter-base station information exchange in a communication system. In a method for operating a serving base station, for controlling interference in a communication system, sum of yield loss amounts of terminals inside a neighbor base station by a power level rise of the serving base station is determined. Yield gain amounts of serving terminals by the power level rise of the serving base station are determined. The sum of the yield loss amounts of the terminals inside the neighbor base station by the power level rise of the serving base station is compared with the determined yield gain amounts of the serving terminals by the power level rise of the serving base station, so that a power level for each serving terminal is determined. | 08-02-2012 |
20150071379 | Apparatus and Method for Saving Power Consumption in Broadband Wireless Communication System - An apparatus and method reduce power consumption in a broadband wireless communication system. A transmitting end apparatus that includes a plurality of transmit (Tx) antennas includes a control block, a Processor (DSP) block, a modem block, and at least one power controller. The control block determines a traffic amount based on an amount of used resources. The Digital Signal Processor (DSP) block performs scheduling by using a subset of Tx antennas and a subset of resources on a frequency axis if the traffic amount is less than a threshold. The modem block applies boosting to a signal transmitted using the subset of resources. And at least one controller turns off an operation of at least one power amplifier that corresponds to at least one Tx antenna that is not included in the subset of Tx antennas. | 03-12-2015 |
Byung-Chan Jang, Gyeongbuk KR
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20100309064 | Built-in antenna for global positioning system in a portable terminal - A built-in antenna apparatus for a Global Positioning System (GPS) of a portable terminal is provided. The apparatus includes a case frame for forming an exterior of the terminal, a main board fastened by the case frame and having a feeding portion and a ground portion of an antenna radiator, and an antenna radiator having a feeding point and ground point to be electrically connected to the feeding portion and ground portion of the main board, and is curved in a horizontal direction and a vertical direction of the terminal about a center of one upper-side corner of the terminal. | 12-09-2010 |
20100317415 | BUILT-IN ANTENNA FOR FOLDER TYPE PORTABLE TERMINAL - A built-in antenna for a folder type portable terminal includes a main body including a main board, an openable folder rotated at a predetermined angle with respect to the main body, a metallic hinge module rotating the folder on the main body to provide an opening and closing feeling of the folder, a conductor electrically connected to the metallic hinge module, the conductor being disposed inside the folder, and at least one conductive connection unit electrically connected to a broadcasting signal line of the main board, the at least one conductive connection unit being electrically connected to the hinge module through a non-contact coupling. | 12-16-2010 |
Byung-Chan Jeon, Gyeongsanbuk-Do KR
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20140125774 | APPARATUS FOR SYNTHESIZING THREE-DIMENSIONAL IMAGES TO VISUALIZE SURROUNDINGS OF VEHICLE AND METHOD THEREOF - The present invention relates to three-dimensional visualization of the surrounding images of a vehicle, and comprises the steps of: enabling a plurality of wide angle cameras provided at a vehicle to receive a plurality of photographed images for reference patterns formed on the ground; extracting feature points from the photographed reference patterns and estimating a relative location and an installation angle of each camera using the known physical location information of the extracted feature points; obtaining optical parameters comprising an optical center of a lens for correcting lens distortion using the photographed images and mapping each image on a surface of a Gaussian sphere using the obtained optical center; changing an angle and distance such that the Gaussian sphere and the real reference patterns correspond to each other using the relative location and the installation angle of the estimated camera and arranging the images in a three-dimensional virtual space; and obtaining a three-dimensional single image by mapping each image arranged in the three-dimensional virtual space to an inner surface of the three-dimensional sphere corresponding to one large sphere. | 05-08-2014 |
Byung-Chan Jeon, Gyeongsangbuk-Do KR
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20120257009 | Image Processing Device and Method for Matching Images Obtained from a Plurality of Wide-Angle Cameras - The present invention relates to an image processing device and method for matching images obtained from a plurality of wide-angle cameras. There is provided an image processing device for matching images obtained from a plurality of wide-angle cameras, comprising: at least 2 wide-angle cameras arranged in such a way as to overlap with a portion of the photographing area between neighboring cameras; an image signal receiver which receives at least 2 input image signals obtained from the plurality of wide-angle cameras; a lookup table which stores image mapping data concerning the relationship between the respective image pixels that constitute a plurality of input image signals obtained from the plurality of wide-angle cameras and the image pixels of composite image signals; an image matching unit which receives a plurality of input image signals from the image signal receiver and constructs image pixels of composite image signals for the respective image pixels forming each input image signal in reference to the lookup table; and an image signal output unit which creates output images based on the composite image signal configured in the image matching unit. There is also provided an image processing method using this image processing device. The inventive image processing device and method make it possible to configure a plurality of images obtained from a plurality of wide-angle cameras as a single planar image in a swift and efficient manner. | 10-11-2012 |
20140055573 | DEVICE AND METHOD FOR DETECTING A THREE-DIMENSIONAL OBJECT USING A PLURALITY OF CAMERAS - The present invention relates to a device and method for detecting a three-dimensional object using a plurality of cameras that are capable of simply detecting a three-dimensional object. The device comprises: a planarization unit for planarizing, through homography conversion, each input image obtained by the plurality of cameras; a comparison-area selecting unit for selecting each area to be compared after adjusting the offset of a camera in order to overlay a plurality of images which have been planarized by said planarization unit; a comparison-processing unit for determining whether or not corresponding pixels are identical in the comparison area selected by said comparison-area selecting unit, and generating a single image based on the results of the determination; and an object-detecting unit for detecting a three-dimensional object disposed on the ground by analyzing the form of the single image generated by said comparison-processing unit. | 02-27-2014 |
Byung-Chan Kim, Daejeon KR
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20090135077 | MULTI-BAND INTERNAL ANTENNA OF SYMMETRY STRUCTURE HAVING STUB - Provided is a multi-band internal antenna of a symmetry structure having stub, in which a size of the internal antenna can be reduced by stacking loop antennas, a broadband characteristic can be obtained in a high frequency band by connecting the stub to a top patch of the antenna, and a reduced SAR and an omni-directional radiation pattern can be obtained by configuring an antenna patch in a symmetry structure. The multi-band internal antenna includes: a top patch disposed in an upper portion of the antenna, the top patch being formed in a loop shape of which one end is opened; a stub connected to the top patch to expand a bandwidth of a high frequency band in an operating frequency of the antenna; a bottom patch connected to a ground part through a feeder part and a shorting part, the bottom patch being formed in a loop shape of which one end and another end are opened; a connecting part connecting the top patch to the bottom patch to transmit a signal from the bottom patch to the top patch; an intermediate part formed between the top patch and the bottom patch to a predetermined thickness; the feeder part for feeding power to the bottom patch; and the shorting part for grounding the bottom patch. The multi-band internal antenna is used in wireless communication fields. | 05-28-2009 |
20130065536 | METHOD AND DEVICE FOR EVALUATING INFLUENCE OF ELECTROMAGNETIC WAVES OF BASE STATION ON HUMAN BODY - The present invention relates to a method for reducing an average time period adopted at the time of evaluating an effect of electromagnetic fields of a mobile communication base station near the mobile communication base station on a human body and measurement is performed for 6 minutes at a predetermined measurement point for acquiring a whole body average by comparing a site measurement result targeting multiple base stations and uncertainty by repetitive measurement and when a 6-minute average value and an average value for a reduced time period which is shorter than 6 minutes are compared with each other, a standard deviation is equal to or lower than a predetermined level, e.g., 0.4 dB, it is sufficient even by the measurement for the reduced time period which is shorter than 6 minutes. | 03-14-2013 |
Byung-Chan Lee, Suwon KR
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20150231695 | BRAKE CALIPER HOUSING HAVING DIFFERENT STRENGTH AND METHOD FOR MANUFACTURING THE SAME - Disclosed are a brake caliper housing and a method for manufacturing the same. The method for manufacturing the brake caliper housing includes: injecting a melt into a mold comprising a cavity of at least one or more of brake caliper housings; cooling the molded brake caliper housing having symmetric physical properties on a left portion and a right portion. Particularly, a cooling rate of the melt of a part in which a chiller is installed during cooling may increase to selectively improve strength by installing the chiller on the outer surface of the cavity. Accordingly, the bilateral symmetric microstructure on the left portion and the right portion may be obtained and deviations in physical properties between the left and the right portions of the manufactured brake caliper housing may be within about 5% and a pearlite fraction in the contact may increase, thereby improving the NVH performance. | 08-20-2015 |
Byung-Chan Yoon, Gyeonggi-Do KR
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20100184336 | BULB SOCKET - Provided is a bulb socket. The bulb socket includes a housing formed as a single piece using a single mold assembly, a couple of lamp holders, a double contact terminal, and a single contact terminal. | 07-22-2010 |