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Hyun Jae
Hyun Jae Baek, Chungbuk KR
| Patent application number | Description | Published |
|---|---|---|
| 20100185068 | NON-CONTACT PHOTOPLETHYSMOGRAPHIC PULSE MEASUREMENT DEVICE AND OXYGEN SATURATION AND BLOOD PRESSURE MEASUREMENT DEVICES USING THE SAME - The present invention provides a non-contact photoplethysmographic (PPG) pulse measurement device, and oxygen saturation and blood pressure measurement devices using the PPG pulse measurement device. The PPG pulse measurement device includes a sensing unit including at least two light emitting units for emitting light into a human body without making direct contact with skin, and a light receiving unit for sensing reflected light. A signal separation unit separates output of the sensing unit into a ripple component and a ripple-free component. A microprocessor unit monitors the ripple-free component and compares the ripple-free component with a DC signal value. A luminance adjustment unit adjusts luminance of the light emitting units. A filter and amplification unit eliminates noise from the ripple component. An A/D conversion unit converts output of the filter and amplification unit into a digital signal. A signal transmission unit transmits output of the A/D conversion unit. | 07-22-2010 |
Hyun Jae Kang, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100324410 | METHOD OF DETERMINING THE POSITION OF A DEEP BRAIN STIMULATION ELECTRODE - The present invention relates to a method of determining the position of a deep brain stimulation (DBS) electrode which finds the position of the DBS electrode with respect to a deep brain target region, by using a first volume data set containing information on the deep brain target region and a second volume data set containing information on the DBS electrode implanted toward the deep brain target region, and which includes: a first step of generating a subvolume of the deep brain target region from the first volume data set, and also generating a subvolume of the DBS electrode from the second volume data set; and a second step of overlapping and displaying the subvolume of the deep brain target region and the subvolume of the DBS electrode. | 12-23-2010 |
| 20110142809 | METHOD FOR SEPARATING HIGHLY ACTIVE STEM CELLS FROM HUMAN STEM CELLS AND HIGHLY ACTIVE STEM CELLS SEPARATED THEREBY - The present invention relates to a method for separating highly active stem cells from human stem cells, the highly active stem cells separated by the method, a cell therapeutic agent containing the stem cells, and a medium for separating the highly active stem cells from stem cells containing a specific cytokine. According to the present invention, the method is useful for separating the highly efficient stem cells from mesenchymal stem cells of various origins. Further, the method is very useful in developing a cell therapeutic agent of high efficiency because the method can be applicable to stem cells of various origins which are cultured under different conditions. Senescent stem cells increased by several passage times in vitro can be effectively sorted out, so the method can be used for reactivating the stem cells. | 06-16-2011 |
Hyun Jae Lee, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090282984 | System of Treating Odor and Hazardous Gas With Rotary Regenerative Heat Exchanger and Its Apparatus - Disclosed is a harmful material treatment system for recovering the energy and removing the harmful material in the process of treating the gas containing the harmful material generated in the multiplex utilization facility, in the display mall, in diverse manufacturing processes and in the vehicle painting process, more particularly, to a harmful material treatment system which can recover the energy contained in the air conditioning facility or in the exhaust gas of the process with an efficiency of more than 90%, for exhausting the inside air to the outside so as to treat the contaminating material such as odor and volatile organic chemicals, and to remove the harmful material with a removal efficiency of more than 90% by adsorbing and concentrating the harmful material with a rotary-type adsorbent. | 11-19-2009 |
| 20100135659 | PACKET-OPTICAL INTEGRATED SWITCH WITHOUT OPTICAL TRANSPONDER - A packet-optical integrated switch without an optical transponder, includes: a packet line card configured to output an Ethernet packet signal to a pre-set output port; a packet switch fabric configured to transfer the packet signal from the packet line card to the output port previously set in a destination address included in the packet signal; a 10 gigabit Ethernet (10 GbE)/optical transport unit level 2 (OTU2) integrated line card configured to convert the packet signal from the packet switch fabric into an OTU2 optical signal having a pre-set wavelength; and a wavelength selection switch fabric configured to allocate the optical signal from the 10 GbE/OTU2 integrated line card to a pre-set wavelength division multiplexing (WDM) port by pre-set wavelength to exchange the optical signal to each port by wavelength, wherein the packet line card, the packet switch fabric, the 10 GbE/OTU2 integrated line card, and the wavelength selection switch fabric perform the reverse operations of the process, respectively. | 06-03-2010 |
| 20100180763 | Air Cleaner Having Regenerative Filter, and Method for Regenerative of Air Cleaner Filter - The invention relates to an air cleaner, and more particularly to an air cleaner which includes a regenerative deodorizing filter to purify and treat gaseous substances contained in air, thus enabling efficient regeneration of the regenerative deodorizing filter, and a method of regenerating the filter of the air cleaner. | 07-22-2010 |
| 20110052194 | NODE APPARATUS AND METHOD OF RECEIVING OPTICAL SIGNAL THEREOF, AND RING NETWORK SYSTEM - A ring network system includes a plurality of node apparatuses that are sequentially connected through a transmission medium that is formed in a ring form. In the ring network system, the remaining node apparatuses, except for a first node apparatus of the plurality of node apparatuses pass an optical signal that is transmitted from the first node apparatus, and a second node apparatus corresponding to a destination of the optical signal among the remaining node apparatuses, extracts the optical signal while transferring the first optical signal to a next node apparatus of the second node apparatus. | 03-03-2011 |
| 20110142036 | METHOD AND APPARATUS FOR SWITCHING PACKET/TIME DIVISION MULTIPLEXING (TDM) INCLUDING TDM CIRCUIT AND CARRIER ETHERNET PACKET SIGNAL - Provided is a packet/TDM switch that may classify a type of a received signal based on slot recognition information received from an Ethernet mapping unit or a TDM mapping unit, and may process the received signal using a dedicated switch corresponding to each of the Ethernet mapping unit and the TDM mapping unit according to the type of the received signal. | 06-16-2011 |
Hyun Jae Lee, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20110069098 | DEVICE AND METHOD FOR CONTROLLING BRIGHTNESS OF ORGANIC LIGHT EMITTING DIODE DISPLAY - A device and a method for controlling brightness of an OLED display device are disclosed. | 03-24-2011 |
Hyun Jae Lee, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100163908 | Light emitting device having vertical structrue and method for manufacturing the same - A light emitting device having a vertical structure and a method for manufacturing the same, which are capable of damping impact generated during a substrate separation process and achieving an improvement in mass productivity, are disclosed. The light emitting device includes a semiconductor layer having a multilayer structure, a first electrode arranged at one surface of the semiconductor layer, a metal support arranged on the first electrode, and an impact damping layer arranged between the first electrode and the metal support, and made of a metal having a ductility higher than a ductility of a metal for the metal support. | 07-01-2010 |
Hyun Jae Lee, Deajeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100150562 | OPTICAL TRANSMISSION SYSTEM - An optical transmission system in which a plurality of optical signals each having a different wavelength are transmitted via a single optical fiber, includes: a first dispersion compensator configured to compensate for wavelength dispersion based on a single wavelength of a plurality of signals transmitted via the optical fiber; a demultiplexer connected to the first dispersion compensator, splitting signals output from the first dispersion compensator into different channels according to their wavelengths, and outputting the same; and a plurality of second dispersion compensators connected to each channel split by the demultiplexer, and compensating for the wavelength dispersion of the mutually different wavelength optical signals. | 06-17-2010 |
Hyun Jae Lee, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110126239 | Method of processing EPG metadata in network device and network device for controlling the same - A method of processing EPG (Electronic Program Guide) metadata in a network device includes performing a service discovery procedure utilizing multiple service discovery metadata components supplied by a service provider, receiving EPG metadata corresponding to a super group information element comprising both of a member element giving a group ID of another super group information element that has a higher level than a level of the super group information element and a level attribute giving a level of super group represented by the super group information element, wherein the member element is used to reference the other super group information element at a higher level, and processing the EPG metadata. | 05-26-2011 |