Hyunsik
Hyunsik Choi, Seoul KR
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20160042033 | QUERY EXECUTION APPARATUS AND METHOD, AND SYSTEM FOR PROCESSING DATA EMPLOYING THE SAME - The present invention relates to an apparatus and method for executing a query, and a system for processing data by using the same. Provided is an apparatus for executing a query including: a processor receiving a query and returning a result value; and a storage storing data on the query, wherein the storage includes: a first storage temporarily storing data required for the execution of the query; and a second storage constructing a DB and storing data, and wherein the processor combines a plurality of primitives in the query to configure a composite primitive, generates a binary code for the composite primitive in run time, and executes a generated code. | 02-11-2016 |
Hyunsik Kim, Seongnam-Si KR
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20110142243 | SPEAKER SYNCHRONIZATION TECHNIQUE FOR WIRELESS MULTICHANNEL SOUND DATA TRANSMISSION SYSTEM - The present invention relates to sound data transmission between a wireless sound transmitter that transmits sound data received from a multimedia source, and a wireless sound speaker that outputs sound signal by receiving the sound data, and more particularly, to a method for compensation of a replay time delay between the wireless sound speakers occurring when the multichannel sound data is distributed and transmitted from the wireless sound transmitter to the multiple wireless sound speakers. The differences in the replay time points occurring between the speakers in a TDMA based multichannel wireless transmission system, are pre-compensated through the delay of the sound data in the WSDT. | 06-16-2011 |
Hyunsik Kim, Seoul KR
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20130223628 | STORAGE DEVICE AND MEMORY CONTROLLER THEREOF - A memory controller controlling a nonvolatile memory is provided. The memory controller includes an encryption key feeder configured to feed a cipher key according to a logical address transferred from a host; and an encryption engine configured to perform an encryption operation on data transferred from the host or a decryption operation on data transferred from the nonvolatile memory device, using the cipher key provided from the encryption key feeder. | 08-29-2013 |
20130227347 | STORAGE DEVICE - A storage device is provided which includes a nonvolatile memory device and a controller configured to write meta information, indicating that a transfer of unit data is completed, in a buffer memory when the unit data is transferred to the buffer memory from the nonvolatile memory device. | 08-29-2013 |
20140101514 | METHOD OF PERFORMING WRITE OPERATION OR READ OPERATION IN MEMORY SYSTEM AND SYSTEM THEREOF - A method of performing a write operation or a read operation in a memory system includes compressing data of a first size unit, generating a plurality of types of Error Checking and Correction (ECC) information based on the compressed data, combining the compressed data and the plurality of types of ECC information in units of a second size, and writing the information combined in units of the second size into a memory device. | 04-10-2014 |
20150033097 | STORAGE DEVICE - A storage device is provided which includes a nonvolatile memory device and a controller configured to write meta information, indicating that a transfer of unit data is completed, in a buffer memory when the unit data is transferred to the buffer memory from the nonvolatile memory device. | 01-29-2015 |
20150235056 | STORAGE DEVICE AND MEMORY CONTROLLER THEREOF - A memory controller controlling a nonvolatile memory is provided. The memory controller includes an encryption key feeder configured to feed a cipher key according to a logical address transferred from a host; and an encryption engine configured to perform an encryption operation on data transferred from the host or a decryption operation on data transferred from the nonvolatile memory device, using the cipher key provided from the encryption key feeder. | 08-20-2015 |
20150290989 | SHOCK ABSORBER HOUSING AND MOUNTING STRUCTURE THEREOF FOR VEHICLE - A shock absorber housing of a vehicle may include a shock absorber housing body formed in a shape of a box and in which an upper portion of a shock absorber is mounted by being inserted therein, and flanges formed along at least one of edges of the box-shaped shock absorber housing body and thus being coupled to a vehicle body, in which the shock absorber housing body includes a low strength portion and a high strength portion respectively having different strengths due to a thickness difference. | 10-15-2015 |
Hyunsik Kim, Yongin-Si KR
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20090285742 | Method of preparing zinc silicate-based phosphor and zinc silicate-based phosphor prepared using the method - Provided are a method of preparing a zinc silicate-based phosphor and a zinc silicate-based phosphor prepared using the method. The method includes: (a) preparing a solution including a Zn precursor compound and a Si precursor compound; (b) adding a coprecipitant to the solution to form precipitation; and (c) heat treating the solution in which the precipitation is formed to synthesize zinc silicate (Zn | 11-19-2009 |
Hyunsik Kim, Daejeon KR
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20150162178 | ION TRAP MASS SPECTROMETER USING COLD ELECTRON SOUCE - The present invention relates to an ion trap mass spectrometer using a cold electron source, in a production of a portable mass spectrometer, in which a microchannel plate (MCP) module is used, initial electrons are induced by injecting ultraviolet photons emitted from an ultraviolet diode to a front surface of the MCP module, electron beams amplified from the electrons are amplified using a channeltron electron multiplier (CEM), the amplified electron beams are accurately adjusted and injected into an ion trap, thus increasing the amplification rate, and since a quadrupole field is used as an ion filter which returns the initially injected electrons to the inside of an ion trap mass separator, the ionization rate increases. | 06-11-2015 |
Hyunsik Park, Palo Alto, CA US
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20130335250 | HYBRID SUCCESSIVE APPROXIMATION ANALOG-TO-DIGITAL CONVERTER - A hybrid SAR ADC can be implemented to reduce the number of operations that are executed to convert an analog input signal into its digital representation. Pipeline processing operations can be executed on the analog input signal to generate pipeline bits (MSBs of the digital representation) and an analog residue signal. The analog residue signal can be compared against a plurality of thresholds to generate comparator bits that are indicative of a range associated with a subset of the predetermined thresholds that correspond to the analog residue signal. Successive approximation analog-to-digital conversion operations can be executed on the analog residue signal to generate successive approximation bits. The digital representation can be determined based, at least in part, on the pipeline bits, the comparator bits, and the successive approximation bits. | 12-19-2013 |
20150077280 | PIPELINED SUCCESSIVE APPROXIMATION ANALOG-TO-DIGITAL CONVERTER - A multistage analog-to-digital data conversion, including: a first stage unit configured to process an analog input signal into a first number of most significant bits using a first reference signal, and to output a first stage residue signal; a second stage unit configured to receive and process the first stage residue signal into a second number of remaining least significant bits using a second reference signal; a sampling unit configured to sample the first stage residue signal received from the first stage unit onto the second stage unit with a passive element; and an output unit configured to output a digital value that is a combination of the first number of most significant bits and the second number of remaining least significant bits. | 03-19-2015 |
Hyunsik Seo, Goyang KR
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20130313530 | OXIDE THIN FILM TRANSISTOR, METHOD FOR FABRICATING TFT, DISPLAY DEVICE HAVING TFT, AND METHOD FOR FABRICATING THE SAME - There are provided an oxide TFT, a method for fabricating a TFT, an array substrate for a display device having a TFT, and a method for fabricating the display device. The oxide thin film transistor includes: a gate electrode formed on a substrate; a gate insulating layer formed on the entire surface of the substrate including the gate electrode; an active layer pattern formed on the gate insulating layer above the gate electrode and completely overlapping the gate electrode; an etch stop layer pattern formed on the active layer pattern and the gate insulating layer; and a source electrode and a drain electrode formed on the gate insulating layer including the etch stop layer pattern and the active layer pattern and spaced apart from one another, and overlapping both sides of the etch stop layer pattern and the underlying active layer pattern. | 11-28-2013 |
Hyunsik Yoon, Seoul KR
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20140016207 | OPTICAL FILM WITH PARTIALLY COATED STRUCTURE ARRAY AND MANUFACTURING METHOD THEREOF - The present invention relates to an optical film comprising a substrate on which an array of structures is formed, wherein a material having a different refractive index, absorbancy or reflectivity from that of a surface of the structures is partially coated on the surface of the structures, and a manufacturing method thereof. Specifically, the optical film according to one embodiment of the present invention may have a different transparency depending on the direction or can transmit light asymmetrically. Further, the optical film may be applicable to image devices, which need to change brightness or images depending on the angle of view or to display three-dimensional images. | 01-16-2014 |
20140326297 | THREE-DIMENSIONAL ELECTRODE ON DYE-SENSITIZED SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a photoelectrode for a dye-sensitized solar cell including inorganic nanoparticles, wherein a three-dimensional pattern is formed on the surface of the photoelectrode. The three-dimensional photoelectrode for a dye-sensitized solar cell according to the present invention has a micrometer-sized pattern and thus exhibits an improved light absorption caused by a total reflection and a increased light path. | 11-06-2014 |