Patent application number | Description | Published |
20080279243 | Distributed Feedback (Dfb) Quantum Dot Laser Structure - A distributed feedback (DFB) quantum dot semiconductor laser structure is provided. The DFB quantum dot semi-conductor laser structure includes: a first clad layer formed on a lower electrode; an optical waveguide (WG) formed on the first clad layer; a grating structure layer formed on the optical WG and including a plurality of periodically disposed gratings; a first separate confinement hetero (SCH) layer formed on the grating structure layer; an active layer formed on the first SCH layer and including at least a quantum dot; a second SCH layer formed on the active layer; a second clad layer formed on the second SCH layer; an ohmic layer formed on the second clad layer; and an upper electrode formed on the ohmic layer. Accordingly, an optical WG is disposed on the opposite side of the active layer from the grating structure layer, thereby increasing single optical mode efficiency. And, an asymmetric multi-electrode structure is used for applying current, thereby maximizing purity and efficiency of the single mode semiconductor laser structure. | 11-13-2008 |
20100092175 | REFLECTIVE SEMICONDUCTOR OPTICAL AMPLIFIER AND OPTICAL SIGNAL PROCESSING METHOD USING THE SAME - Provided are a semiconductor optical amplifier and an optical signal processing method using the same. The reflective semiconductor optical amplifier includes: an optical signal amplification region operating to allow a downward optical signal incident from the external to obtain a gain; and an optical signal modulation region connected to the optical signal amplification region and generating a modulated optical signal. The downward optical signal is amplified through a cross gain modulation using the modulated optical signal and is outputted as an upward optical signal. | 04-15-2010 |
20100158427 | OPTICAL AMPLIFIER - An optical amplifier includes a passive waveguide region and an active waveguide region. The passive waveguide region is configured to receive an incident optical signal and adjust a mode of the optical signal. The active waveguide region is integrated to the passive waveguide region and configured to perform gain modulation on the optical signal received from the passive waveguide region by changing density of carriers in response to a current applied to the active waveguide region. Internal loss of the active waveguide region is adjusted to produce a resonance effect and thereby to increase bandwidth of the active waveguide. Therefore, the optical amplifier can have a wide bandwidth under a low-current condition. | 06-24-2010 |
20100252094 | High-Efficiency Solar Cell and Method of Manufacturing the Same - Provided are a high-efficiency solar cell, which converts light energy of incident light into electrical energy, and a method of manufacturing the same. An upper ohmic layer is formed at a predetermined tilt angle less than 45° and an ohmic electrode is deposited on the upper ohmic layer so as to reduce shadow loss due to the ohmic electrode and lessen contact resistance. | 10-07-2010 |
20100316383 | WAVELENGTH DIVISION MULTIPLEXED-PASSIVE OPTICAL NETWORK APPARATUS - Provided is a wavelength division multiplexed-passive optical network (WDM-PON) apparatus. The WDM-PON includes an optical source unit, an optical mux, and a chirped Bragg grating. The optical source unit generates an optical signal. The optical mux receives the optical signal from the optical source unit through one end of the optical mux, multiplexes the optical signal, and outputs the multiplexed optical signal. The chirped Bragg grating is connected to the other end of the optical mux. The chirped Bragg grating again reflects the optical signal having passed the optical mux to re-input a certain portion of the optical signal into the optical mux and the optical source unit. The optical mux performs a spectrum slicing on the re-inputted optical signal and operates the optical source unit using a channel wavelength of the optical mux as a main oscillation wavelength. | 12-16-2010 |
20110134513 | OPTICAL DEVICE MODULE - Provided is an optical device module that can improve miniaturization and integration. The optical device module includes a semiconductor optical amplifier having a buried structure and including a first active layer buried in a clad layer disposed on a first substrate, an optical modulator in which a sidewall of a second active layer disposed in a direction of the first active layer on a second substrate junctioned to the first substrate is exposed, the optical modulator having a ridge structure, and at least one multi-mode interference coupler in which the second active layer junctioned to the first active layer is buried in the clad layer, the multi-mode interference coupler sharing the second active layer on the second substrate between the optical modulator and the semiconductor optical amplifier and integrated with the second optical device. | 06-09-2011 |
20120093178 | WAVELENGTH TUNABLE EXTERNAL CAVITY LASER GENERATING DEVICE - Provided is a wavelength tunable external cavity laser generating device. The wavelength tunable external cavity laser generating devices includes: an optical amplifier, a comb reflector, and an optical signal processor connected in series on a first substrate; and an external wavelength tunable reflector disposed on a second substrate adjacent to the first substrate and connected to the optical amplifier, wherein the comb reflector includes: a waveguide disposed on the first substrate; a first diffraction grating disposed at one end of the waveguide adjacent to the optical amplifier; and a second diffraction grating disposed at the other end of the waveguide adjacent to the optical signal processor, wherein the optical amplifier, the comb reflector, and the optical signal processor constitute a continuous waveguide. | 04-19-2012 |
20120106578 | WAVELENGTH-TUNABLE EXTERNAL CAVITY LASER GENERATING DEVICE - A wavelength-tunable external cavity laser generating device is provided. The wavelength-tunable external cavity laser generating device includes a reflection-type multi-mode interferometer, an optical amplifier disposed between the reflection-type multi-mode interferometer and an external wavelength-tunable reflector to amplify light, and an optical signal processor configured to process light from the reflection-type multi-mode interferometer. The reflection-type multi-mode interferometer includes a multi-mode waveguide, an input waveguide connecting the optical amplifier and one end of the multi-mode waveguide, and an output waveguide configured to connect the optical signal processor and the other end of the multi-mode waveguide. | 05-03-2012 |
20120281274 | SEMICONDUCTOR OPTICAL DEVICES AND METHODS OF FABRICATING THE SAME - A semiconductor optical device includes a first mode converting core, a light amplification core, a second mode converting core, and a light modulation core disposed in a first mode converting region, a light amplification region, a second mode converting region, and a light modulating region of a semiconductor substrate, respectively, and a current blocking section covering at least sidewalls and a top surface of the light amplification core. The first mode converting core, the light amplification core, the second mode converting core, and the light modulation core are arranged along one direction in the order named, and are connected to each other in butt joints. The current blocking section includes first, second, and third cladding patterns sequentially stacked. The second cladding pattern is doped with dopants of a first conductivity type, and the first and third cladding patterns are doped with dopants of a second conductivity type. | 11-08-2012 |
20130163621 | EXTERNAL CAVITY TUNABLE LASER MODULE - Disclosed is an external cavity tunable laser module including a substrate; a mirror surface that is formed on the substrate to reflect a laser incoming from the outside; a transmissive liquid crystal filter that is formed at a rear side of the mirror surface to select and tune a wavelength of the laser reflected through the mirror surface; and a light source chip that is formed at a rear side of the transmissive liquid crystal filter to reflect the laser that passes through the transmissive liquid crystal filter at a specific wavelength interval to form a plurality of channels and tune wavelengths of the channels. | 06-27-2013 |
20130163916 | OPTICAL WAVEGUIDE PLATFORM WITH HYBRID-INTEGRATED OPTICAL TRANSMISSION DEVICE AND OPTICAL ACTIVE DEVICE AND METHOD OF MANUFACTURING THE SAME - Disclosed are an optical waveguide platform with integrated active transmission device and monitoring photodiode. The optical waveguide platform with hybrid integrated optical transmission device and optical active device includes an optical waveguide region formed by stacking a lower cladding layer, a core layer and an upper cladding layer on a substrate; a trench region formed by etching a portion of the optical waveguide region; and a spot expanding region formed on the core layer in the optical waveguide region, in which the optical transmission device is mounted in the trench region and the optical active device is flip-chip bonded to the spot expanding region. The monitoring photodiode is flip-chip bonded to the spot expanding region of the core layer of the optical waveguide, thereby monitoring output light including an optical coupling loss that occurs during flip-chip bonding. | 06-27-2013 |
20130163993 | DIRECTLY-COUPLED WAVELENGTH-TUNABLE EXTERNAL CAVITY LASER - Disclosed is a directly-coupled wavelength-tunable external cavity laser including a gain medium that generates an optical signal by an applied bias current; an optical waveguide structure that is coupled to the gain medium to form a minor surface and causes lasing in the mirror surface when the applied bias current has a threshold or higher; and a radio frequency transmission medium that adds a radio frequency signal to the applied bias current to adjust an operating speed of the optical signal. | 06-27-2013 |
20130209094 | OPTICAL LINE TERMINAL FOR BIDIRECTIONAL WAVELENGTH-DIVISION-MULTIPLEXING OPTICAL NETWORK - The present disclosure relates to an optical line terminal, the disclosure includes: an optical transmitter for generating a low speed downstream optical signal; a wavelength-multiplexer for wavelength-multiplexing the downstream optical signal; a first optical power branching tap coupler for allowing wavelength-multiplexed downstream optical signal to branch off; a wavelength band separator/coupler for separating between the wavelength-multiplexed downstream optical signal and a wavelength-multiplexed upstream optical signal; a circulation type wavelength-demultiplexer for wavelength-demultiplexing a downstream optical signal branched off by the first optical power branching tap coupler and an upstream optical signal separated by the wavelength band separator/coupler; an optical receiver for outputting a downstream electrical signal by using the wavelength-demultiplexed optical signal; and a signal processing module for controlling an optical power and a wavelength of the optical transmitter according to a strength of the downstream electrical signal. | 08-15-2013 |
20130209105 | WAVELENGTH-SHIFTED BIDIRECTIONAL WAVELENGTH DIVISION MULTIPLEXING OPTICAL NETWORK - Disclosed is a wavelength-shifted bidirectional WDM optical network including: an optical line terminal including an optical line terminal (OLT) including a first optical transmitter transmitting a downstream WDM optical signal, a first high-density wavelength multiplexer/demultiplexer wavelength-multiplexing the downstream WDM optical signal or wavelength-demultiplexing a wavelength-multiplexed upstream WDM optical signal, and a first optical receiver receiving the wavelength-demultiplexed upstream WDM optical signal; a remote node (RN) including a second high-density wavelength multiplexer/demultiplexer shifting a center wavelength of the upstream WDM optical signal and wavelength-multiplexing the upstream WDM optical signal with the shifted center wavelength or wavelength-demultiplexing the wavelength-multiplexed downstream WDM optical signal; and multiple optical network units (ONUs) each including a second optical transmitter transmitting the upstream WDM optical signal and second optical receiver receiving the wavelength-demultiplexed downstream WDM optical signal. | 08-15-2013 |
20130243013 | TUNABLE LASER MODULE - The present disclosure relates to a tunable laser module including a light gain area unit for outputting an optical signal; an optical distributor for separating the optical signal output from the light gain area unit; two comb reflection units for reflecting a part of optical signals separated by the optical distributor and allow a part of the optical signals to penetrate; two phase units for changing phases of the optical signals penetrating the two comb reflection units; an optical coupler for combining the optical signals of which the phases are changed by the two phase units; and an optical amplifier for amplifying the optical signal combined by the optical coupler, wherein the light gain area unit oscillates a laser by totally reflecting the optical signals reflected by the two comb reflection units. | 09-19-2013 |
20140023313 | HYBRID INTEGRATED OPTICAL DEVICE AND FABRICATION METHOD THEREOF - Disclosed are a hybrid integrated optical device capable of more easily implementing impedance matching of a transmission line by using a polymer material on which a low-temperature process may be performed when an optical waveguide platform is fabricated, and a fabrication method thereof. The hybrid integrated optical device according to an exemplary embodiment of the present disclosure includes: a substrate divided into a waveguide region and a line region; a lower clad layer formed of silica and formed on the substrate; a transmission line part formed on the lower clad layer of the line region; and a height adjustment layer, a core layer, and an upper clad layer formed of a polymer and sequentially formed on the lower clad layer of the waveguide region, in which an optical waveguide is formed on the core layer. | 01-23-2014 |
20140064306 | COMPACT EXTERNAL CAVITY TUNABLE LASER APPARATUS - The present disclosure relates to a compact external cavity tunable laser apparatus. The laser apparatus includes a substrate, an external cavity tunable reflecting unit that reflects laser light entering from the outside on the substrate and selects and varies a wavelength of the reflected laser light, an optical fiber that outputs the laser light on the substrate; and an highly integrated light source that integrates the laser light input from the external cavity tunable reflecting unit using inclined input and output waveguides, a curved waveguide, and a straight waveguide to output the integrated laser light to the optical fiber in order to match an optical axis formed with the external cavity tunable reflecting unit with an optical axis formed with an optical fiber. | 03-06-2014 |
20140233945 | WAVELENGTH DIVISION MULTIPLEXING OPTICAL TRANSMITTING APPARATUS AND OPERATING METHOD OF THE SAME - Provided is a wavelength division multiplexing (WDM) optical transmitting apparatus including first to n-th optical transmitters configured to output first to n-th optical signals having different wavelengths, respectively; a wavelength multiplexer configured to multiplex the first to n-th optical signals and generate an output optical signal; a tap coupler configured to receive the output optical signal and generate a controlling optical signal based on some of the output optical signal; a controlling photodetector configured to receive the controlling optical signal and output an optical current based on the controlling optical signal; and a controller configured to control each of the first to n-th optical transmitters based on the optical current, wherein the controller comprises a look-up table, sequentially detects driving conditions for the first to n-th optical transmitters, stores the detected driving conditions in the look-up table, and controls the first to n-th optical transmitters based on the detected driving conditions. | 08-21-2014 |
20140270811 | MULTI-CHANNEL OPTICAL RECEIVING MODULE - A multi-channel optical receiving module includes a first substrate disposed on a bench, optical fibers disposed in grooves of the first substrate, a first lens disposed on the first substrate and collimating optical signals through the optical fibers, a second substrate disposed on the bench at a side of the first substrate, a light receiving device disposed on the second substrate, a second lens disposed over the light receiving device, a mirror reflecting the optical signals between the first lens and the second lens, and a block fixing the mirror. The block includes through-holes transmitting the optical signals between the first and second lenses without refraction of the optical signals. | 09-18-2014 |
20150063832 | MULTI-CHANNEL RECEIVER OPTICAL SUB ASSEMBLY - Disclosed is a multi-channel receiver optical sub assembly. The a multi-channel receiver optical sub assembly includes: a multi-channel PD array, in which a plurality of photodiodes (PDs) disposed on a first capacitor, and including receiving areas disposed at centers thereof and anode electrode pads arranged in an opposite direction at an angle of 180 degrees based on the receiving areas between the adjacent PDs is monolithically integrated; a plurality of transimpedance amplifiers (TIAs) arranged on a plurality of second capacitors, respectively, and connected with the anode pads of the respective PDs through wire bonding; a submount on which the first capacitor. | 03-05-2015 |
20150125159 | REFLECTIVE COLORLESS OPTICAL TRANSMITTER - Provided is a reflective colorless optical transmitter receiving a carrier signal, which is a continuous wave, and outputting a modulated optical signal. The reflective colorless optical transmitter includes a semiconductor optical amplifier (SOA) amplifying an input optical signal allowing the input optical signal to have a gain, an optical modulator connected to the SOA and outputting a modulated optical signal, a high reflectivity facet reflecting the modulated optical signal from the optical modulator, and a Bragg reflection mirror connected to the high reflectivity facet, the optical modulator, and the SOA in series, wherein a Bragg resonator is formed by the Bragg reflecting mirror and the high reflectivity facet. | 05-07-2015 |
20150140375 | Battery Pack - Provided is a battery pack, and more particularly, a battery pack capable of preventing degradation of performance at a low temperature by allowing a portion of air exhausted through an exhaust port to be introduced into an inhalation port to optimize a temperature of external air introduced into a cell module. | 05-21-2015 |
20150236473 | REFLECTIVE OPTICAL SOURCE DEVICE - Disclosed is an optical source device. The optical source device includes: a mode converter configured to be optically coupled with an optical fiber; a semiconductor optical amplifier coupled with the mode converter, and configured to amplify an optical signal input through the optical fiber; and an electro absorption modulator coupled to the optical amplifier, and configured to modulate the amplified optical signal and output the modulated optical signal, in which each of the semiconductor optical amplifier and the optical absorption modulator includes a heater. | 08-20-2015 |
20150236797 | METHOD AND APPARATUS FOR SELECTING WAVELENGTH BY WAVELENGTH TUNABLE OPTICAL RECEIVER - Disclosed are a method and an apparatus for selecting a wavelength by a wavelength tunable optical receiver. The method of selecting a wavelength of a wavelength tunable optical receiver includes: receiving, by the wavelength tunable optical receiver, an optical signal from a wavelength tunable optical transmitter; filtering, by the wavelength tunable optical receiver, the optical signal through a low frequency band electrical signal filter, and obtaining a low frequency signal; determining, by the wavelength tunable optical receiver, whether the low frequency signal is a valid signal based on a current value of the low frequency signal; and when the low frequency signal is the valid signal, obtaining, by the wavelength tunable optical receiver, an enable condition of a wavelength tunable optical filter through which the low frequency signal is selected, in which the low frequency signal includes a control/monitoring signal. | 08-20-2015 |
Patent application number | Description | Published |
20090050179 | Cleaner composition consisting of alkalic agent, sodium polyacrylate and sterilizer and cleaning method using the same - The present invention relates to a cleaner composition comprising an alkalic agent, sodium polyacrylate as ion exchanger, a sterilizer and water, and a cleaning method using the same. More particularly, the present invention relates to a cleaner composition comprising 5 to 15 weight % of an alkalic agent, 5 to 20 weight % of sodium polyacrylate having a molecular weight 4,000 to 10,000 as ion exchanger, 0.5 to 30 weight % of a sterilizer, and water as remainder, and a cleaning method using the same. The cleaner composition of the present invention provides the effect of removing fats, proteins, minerals, etc. comparable to or better than that of the conventional cleaner, and can reduce cleaning time and cost because the cleaning process is simplified. Hence, it can be utilized to clean milking machines or other appliances. | 02-26-2009 |
20100091596 | SOLID STATE DRIVE SYSTEMS AND METHODS OF REDUCING TEST TIMES OF THE SAME - Example embodiments of the inventive concept are directed to solid state device systems and methods of reducing test times of the same. | 04-15-2010 |
20110006954 | ANTENNA APPARATUS AND MOBILE TERMINAL HAVING THE SAME - An antenna apparatus and a mobile terminal having the same are disclosed. The antenna apparatus includes: a first antenna portion patterned at one surface of the electronic circuit board; and a can type second antenna portion electrically connected to one end of the first antenna portion and separated from the one surface of the electronic circuit board, wherein one end of the second antenna portion is connected to the one end of the first antenna portion using a SMD method and the other end of the second antenna portion is connected to the one surface of the electronic circuit board using a SMD method through a floating pad formed in the one surface of the electronic circuit board. | 01-13-2011 |
20130070575 | ALARM METHOD AND APPARATUS IN PORTABLE TERMINAL - An alarm method in a portable terminal is provided, including setting an alarm by setting an alarm time, setting output information to be output at the alarm time, and setting an output device for receiving and displaying the output information; outputting a preset alarm sound when the set alarm time arrives, and obtaining the output information to be output at the alarm time; and transmitting the obtained output information to the set output device. | 03-21-2013 |
20130113755 | TOUCH SCREEN DISPLAY DEVICE - A touch screen display device includes a capacitive touch screen display element, a conductive film provided on an outer surface of the display element, and an air layer interposed between the display element and the conductive film. A gap is maintained between the outer surface of the display element and the conductive film by the air layer. Although the screen display device configured as described above has a capacitive touch screen display element, since the capacitive touch screen display element is shielded from being directly exposed to the outside, it is possible for a user to manipulate the capacitive touch screen display element under water or in a highly humid environment, and even in an environment in which the user should wear protective gear. | 05-09-2013 |
20140100751 | BRAKING SYSTEM FOR HYBRID VEHICLE AND CONTROL METHOD FOR THE SAME - A braking system for hybrid vehicle may include a brake pedal, a pedal stroke sensor detecting stroke of the brake pedal and outputting corresponding signal, a brake control unit receiving the signal of the pedal stroke sensor, a driving wheel caliper braking a driving wheel according to control of the brake control unit, a regenerative braking unit including a motor/generator which generates electric energy according to control of the brake control unit in braking of the driving wheel, a master cylinder connected with the brake pedal and operated by the brake pedal, and a driven wheel caliper braking a driven wheel according to operation of the master cylinder. | 04-10-2014 |
20140152917 | ELECTRODE MEMBER AND TOUCH PANEL INCLUDING THE SAME - Disclosed is a touch panel. The touch panel includes a substrate, and an electrode part formed in a mesh shape on the substrate. The electrode part includes a resin layer comprising first and second sub-patterns, and a transparent electrode on the first sub-pattern. A ratio of a width of the first sub-pattern to a width of the second sub-pattern is in a range of 1:0.01 to 1:0.5. | 06-05-2014 |
20140292714 | TOUCH PANEL AND TOUCH DEVICE WITH THE SAME - A touch panel includes a substrate; and a sensing electrode with a conductive pattern on the substrate, wherein the sensing electrode includes: an electrode layer; and a first buffer layer on the electrode layer. | 10-02-2014 |
20140324283 | FAILURE DIAGNOSIS METHOD FOR BRAKE SYSTEM OF VEHICLE - A failure diagnosis method for a brake system of a vehicle determines whether the failure occurs in a regenerative braking device, a front-wheel friction braking device or a rear-wheel friction braking device. The method may include comparing a driver's required acceleration/deceleration with a current acceleration/deceleration of the vehicle, determining that a failure has occurred in the brake system of the vehicle when the driver's required acceleration/deceleration is different from the current acceleration/deceleration of the vehicle and comparing a driver's required braking torque with a regenerative braking maximum torque, and determining that the failure does not occur in the brake system of the vehicle when the driver's required acceleration/deceleration is substantially equal to the current acceleration/deceleration of the vehicle. | 10-30-2014 |
20150028897 | TOUCH WINDOW AND TOUCH DEVICE INCLUDING THE SAME - Disclosed is a touch window. The touch window includes a substrate; a sensing electrode disposed on the substrate to sense a position; wire parts to electrically connect the sensing electrode; and a dummy pattern between the wire parts, wherein the wire parts include first extending parts and second extending parts having mutually different directionalities. | 01-29-2015 |
20150092359 | TOUCH WINDOW AND TOUCH DEVICE WITH THE SAME - Disclosed are a touch window with an improved visibility and a touch device with the same. The touch window includes a substrate; a first sensing electrode aligned on the substrate as a first conductive pattern; and a second sensing electrode aligned on the substrate as a second conductive pattern, wherein the first conductive pattern and the second conductive pattern have mutually different directionalities. | 04-02-2015 |
20150109246 | TOUCH WINDOW AND TOUCH DEVICE INCLUDING THE SAME - Disclosed is a touch window including a sensing electrode to sense a position, and a wire to electrically connect the sensing electrode. A width of the sensing electrode is variable in the sensing electrode. | 04-23-2015 |
20150117258 | APPARATUS AND METHOD FOR CHANGING STATUS OF CLUSTER NODES, AND RECORDING MEDIUM HAVING THE PROGRAM RECORDED THEREIN - Provided are an apparatus and a method for changing a status of cluster nodes, which determine whether to change statuses of respective cluster nodes themselves to an active status or a standby status without intervention by a manager through self-diagnosis and change the status of the nodes. | 04-30-2015 |
20150258915 | VEHICLE SEAT RAIL LOCKING DEVICE - The present disclosure provides a locking device which includes a fixed rail, a moving rail sliding relative to the fixed rail, locking pins arranged along the moving rail, locking springs disposed around the locking pins, and an unlocking lever rotating around a shaft fixed to the moving rail so as to relieve the locking pins from a locked state where the locking pins are inserted into the holes. The present disclosure thereby provides the locking device for a seat rail having a compact configuration. | 09-17-2015 |
20150258916 | LOCKING DEVICE FOR VEHICLE SEAT RAIL - The present disclosure provides a locking device for a vehicle, and the locking device includes locking pins and a seat rail having locking holes. The locking pins are inserted to the locking hole(s) in a locked state, and the lengths of the locking holes are different in a longitudinal direction of the seat rail so as to finely adjust the movement position of a moving rail relative to a fixed rail while not compromising the strength of the seat rail. | 09-17-2015 |
20150258917 | LOCKING DEVICE FOR VEHICLE SEAT RAIL - The present disclosure provides a locking device for the precise adjustment of the movement position of a vehicle seat rail relative to a fixed rail while not compromising the strength of the seat rail. The locking device includes the seat rail having locking holes, and four locking pins to be inserted in the locking holes. In particular, the locking holes and pins are arranged with predetermined gaps along a longitudinal direction of the seat rail, and a distance between second and third locking pins is different from a distance between first and second locking pins which is the same as a distance between third and fourth locking pins. | 09-17-2015 |
20150283179 | SELECTING FETAL BOVINE SERUM FOR USE IN STEM CELL CULTURE MEDIA AND PREPARING STEM CELL CULTURE - A method of selecting a collection of cells for choosing a fetal bovine serum (FBS) to use in stem cell transplantation is provided. In addition, a method of selecting a fetal bovine serum (FBS) for use in culturing stem cells for transplantation is provided. Furthermore, a culture medium for culturing stem cells for transplantation and a method of stem cell transplantation are provided. | 10-08-2015 |
20150283181 | SELECTING FETAL BOVINE SERUM FOR USE IN STEM CELL CULTURE MEDIA AND PREPARING STEM CELL CULTURE - A method of selecting a collection of cells for choosing a fetal bovine serum (FBS) to use in stem cell transplantation is provided. In addition, a method of selecting a fetal bovine serum (FBS) for use in culturing stem cells for transplantation is provided. Furthermore, a culture medium for culturing stem cells for transplantation and a method of stem cell transplantation are provided. | 10-08-2015 |
Patent application number | Description | Published |
20080318278 | Ammonia-Specific 5'-Xmp Aminase Mutant - Disclosed herein are ammonia-specific 5′-XMP aminase mutants and a method for preparing the same. A mutation is introduced into the active site of glutamine-dependent catalysis in 5′-XMP aminase. The resulting 5′-XMP aminase mutant is devoid of the glutamine-dependent activity and specifically reacts with external ammonia in converting 5′-XMP into 5′-GMP. Thus, the ammonia-specific 5′-XMP aminase mutant is stabler within cells compared to the wild type, and can be useful in the industrial conversion of 5′-XMP into 5′-GMP. | 12-25-2008 |
20090050456 | LIGHT EMITTING KEYPAD COMPRISING LIGHT GUIDE FILM AND LIGHT GUIDE - The present invention provides a light emitting keypad having a very slim light guide film, and a light guide film for a keypad backlight. Particularly, a reflection layer is formed on a lower portion of the light guide film, resulting in more improved luminance. According to the present invention, the introduction of an EL sheet is eliminated, substantial slimness is achieved as compared with a direct illumination type keypad, high luminance is obtained by introducing a reflection layer even though a small number of light sources are used, and a light emitting surface can be provided for intensive light emission onto key regions of a keypad by forming a predetermined pattern on at least one surface of the light guide film. | 02-26-2009 |
20090194401 | LIGHT EMITTING KEYPAD - The present invention provides a light emitting keypad, which can obtain a more uniform light emitting surface and the same effects as or superior effects to conventional light emitting keypads even though a small number of light sources are used as compared with the conventional light emitting keypads, by causing light emitted from light sources arranged in a top view type through a light guide film to be incident into the light guide film and by emitting the light to the outside through the light guide film. | 08-06-2009 |
20090283392 | LIGHT GUIDE KEY-PLATE AND LIGHT EMITTING KEYPAD COMPRISING THE SAME - A light guide key-plate and a light emitting keypad comprising the same including a light guide mechanism capable of surface-light emitting laterally incident light, and a plurality of keys formed on the light guide mechanism and capable of emitting light are provided, such that the light emitting keypad is remarkably slimmed over a light emitting keypad using a direct illumination method or a light guide plate using a separate light guide plate, thereby enabling to simplify the manufacturing and assembling processes. | 11-19-2009 |
20100249363 | Process for Preparing Polyethylenenaphthalate with 2,6-Naphthalenedicarboxylic Acid - The present invention relates to a process for preparing polyethylene naphthalate, comprising the steps of: esterifying 2,6-naphthalene dicarboxylic acid and ethylene glycol, or glycols using the two materials as major material to obtain prepolymer which comprises bis(beta-hydroxyethyl)naphthalate or low polymer as main material; and performing polycondensation reaction to thereby prepare polyethylene naphthalate. The process of the present invention has advantages of: enabling esterification with a low molar ratio of ethylene glycol to reduce reaction time, thereby increasing process efficiency; minimizing formation of side reaction products to improve properties; and preventing deterioration of the products by performing polycondensation at a low temperature to thereby obtain polyethylene naphthalate polymers of high quality. | 09-30-2010 |
20120084911 | WASHBASIN - A washbasin includes: a washbasin body having a water containing space and comprising an insertion hole formed in a front surface thereof in a downward inclined direction and a drain hole formed on the bottom surface thereof; a water supply nozzle projected toward the water containing space through the insertion hole from a rear end of the washbasin body, wherein the projected portion of the water supply nozzle is rotated in a direction desired by a user so as to control a water supply direction and a water supply amount; a cold/hot water supply valve buried in a one-side edge of the washbasin body and coupled to the water supply nozzle through a pipe; and a cold/hot selection level installed on the top surface of the cold/hot water supply valve and selectively supplying cold/hot water to the water supply nozzle. | 04-12-2012 |
20120207323 | METHOD AND APPARATUS FOR SOUND SOURCE LOCALIZATION USING MICROPHONES - A method and apparatus for sound source localization using microphones are disclosed. The method includes: receiving signals coming from a sound source through microphones covering all directions; distinguishing the received signals into those signals directly input to the microphones from the sound source (direct signals) and those signals indirectly input to the microphones (indirect signals); identifying a candidate region at which the sound source is present using locations of the microphones receiving direct signals; selecting a point in the candidate region as a candidate location; drawing one or more virtual tangent lines, contacting with the circumference of the apparatus, from the candidate location; placing locations of the microphones receiving indirect signals on the virtual tangent lines; and localizing the sound source on the basis of signals passing through the microphones receiving direct signals and through the virtual locations of the microphones receiving indirect signals. | 08-16-2012 |
20120290112 | APPARATUS AND METHOD FOR COMPARING FRAMES USING SPECTRAL INFORMATION OF AUDIO SIGNAL - Disclosed is a frame comparison apparatus and method for comparing frames included in an audio signal by using spectrum information. The frame comparison apparatus includes a spectrum information estimation apparatus for receiving an audio signal and estimating and outputting spectrum information for the respective frames included in the audio signal, an estimation operation option determiner for determining an estimation order of the spectrum information estimated from the spectrum information estimation apparatus, a frame comparison option determiner for determining a comparison order for the frames output from the spectrum information estimation apparatus, and a frame comparator for determining a comparison target frame which is a comparison target for a current frame included in the audio signal, comparing the spectrum information for the current frame with the spectrum information for the comparison target frame, and outputting a comparison result value. | 11-15-2012 |
20130044915 | METHOD AND APPARATUS FOR RECOGNIZING CHARACTERS - A method and an apparatus for recognizing characters using an image are provided. A camera is activated according to a character recognition request and a preview mode is set for displaying an image photographed through the camera in real time. An auto focus of the camera is controlled and an image having a predetermined level of clarity is obtained for character recognition from the images obtained in the preview mode. The image for character recognition is character-recognition-processed so as to extract recognition result data. A final recognition character row is drawn that excludes non-character data from the recognition result data. A first word is combined including at least one character of the final recognition character row and a predetermined maximum number of characters. A dictionary database that stores dictionary information on various languages using the first word is searched, so as to provide the user with the corresponding word. | 02-21-2013 |
20130076943 | APPARATUS AND METHOD FOR IMAGE RECOGNITION OF FACIAL AREAS IN PHOTOGRAPHIC IMAGES FROM A DIGITAL CAMERA - Disclosed is an apparatus for photographing an image using a digital camera capable of providing a preview image, including: an image sensor for capturing an image of a subject; a first image signal processor for processing at least one captured image as a sequent image in order to display the captured image as a preview image on a display window and detecting a face area from the captured image; a buffer for storing the image including at least one detected face area; a capture button for capturing a still image during outputting the sequent image as the preview image on the display window; a second image signal processor for processing the captured still image using the capture button; a controller for controlling to store the captured still image and information related on the face area detected from the first image signal processor prior to the input of the capture button; and a memory for storing the processed still image together with the information related on the detected face area. | 03-28-2013 |
20140003726 | METHOD AND APPARATUS FOR RECOGNIZING CHARACTERS | 01-02-2014 |
20140009645 | APPARATUS AND METHOD FOR AUTOMATICALLY ADJUSTING SIZE OF CHARACTERS USING CAMERA - A method is provided for automatically adjusting a size of characters using a camera. The method includes receiving an image with characters; adjusting a focus of the image with characters and detecting a region and a size of characters in the image; determining whether the size of the characters in the image falls within a preset range; recognizing the characters in the image and displaying the recognition results, if the size of the characters falls within the preset range; and automatically adjusting a zoom ratio of the image and recognizing the characters in the resized image, if the size of the characters does not fall within the preset range. | 01-09-2014 |
20140032984 | MEMORY MODULE AND A MEMORY TEST SYSTEM FOR TESTING THE SAME - A memory module includes a first rank, a second rank and a test control unit. The first rank includes a plurality of semiconductor memory devices configured to operate in response to a first chip selection signal. The second rank includes a plurality of semiconductor memory devices configured to operate in response to a second chip selection signal. The test control unit is configured to simultaneously enable the first and second chip selection signals to test the first and second ranks in a test mode. | 01-30-2014 |
20140055643 | APPARATUS AND METHOD FOR RECOGNIZING CHARACTERS USING A CAMERA - A method is provided for recognizing characters of an image captured using a camera in a mobile terminal. The camera captures an image of a signboard. A text area is extracted from the captured image. Characters are recognized from the extracted text area. At least one text is generated by combining the recognized characters. The at least one text is compared with at least one store name within a predetermined range. A comparison result is output. | 02-27-2014 |
20140294295 | APPARATUS AND METHOD FOR VIDEO SENSOR-BASED HUMAN ACTIVITY AND FACIAL EXPRESSION MODELING AND RECOGNITION - An apparatus and method for human activity and facial expression modeling and recognition are based on feature extraction techniques from time sequential images. The human activity modeling includes determining principal components of depth and/or binary shape images of human activities extracted from video clips. Independent Component Analysis (ICA) representations are determined based on the principal components. Features are determined through Linear Discriminant Analysis (LDA) based on the ICA representations. A codebook is determined using vector quantization, Observation symbol sequences in the video clips am determined. And human activities are learned using the Hidden Markov Model (HMM) based on status transition and an observation matrix. | 10-02-2014 |
20140340307 | APPARATUS AND METHOD FOR RECOOGNIZING SUBJECT MOTION USING A CAMERA - A method and an apparatus are provided for displaying pictures according to hand motion inputs. An application is executed for displaying a picture from among a sequence of pictures on a display. Groups of skin color blocks corresponding to a hand are detected from among image frames output from a camera. A motion is detected among the groups of skin color blocks. Direction information is obtained on the detected motion. The application is controlled to display a previous picture or a next picture in the sequence of pictures on the display according to the direction information. | 11-20-2014 |
20140362253 | BEAMFORMING METHOD AND APPARATUS FOR SOUND SIGNAL - A beamforming method and apparatus for acquiring a sound signal in an electronic device includes selecting at least one object for beamforming to acquire a sound, measuring a first distance between the at least one object selected and a sensor for distance measurement, calculating a second distance between the at least one object and a plurality of microphones based on the first distance, and determining a weight for sound beamforming using at least one of time delay and phase delay corresponding to the second distance between the object and the microphone. | 12-11-2014 |
20150017963 | METHOD, ELECTRONIC DEVICE, AND COMPUTER READABLE RECORDING MEDIUM FOR PROVIDING LOCATION BASED SERVICES - An electronic device provides location-based services. The electronic device may include a communication module configured to receive information on a wireless network device, including identification information of at least one electronic device, from the wireless network device. The electronic device may also include a controller configured to perform at least some functions of the electronic device, based on at least one piece of action information corresponding to the identification information, when the identification information corresponding to the electronic device is included in the received information. | 01-15-2015 |
20150025084 | HIGH-CONTENT FAST DISSOLVING FILM WITH MASKING OF BITTER TASTE COMPRISING SILDENAFIL AS ACTIVE INGREDIENT - Provided is a fast dissolving film composition comprising a medically active component as an active ingredient, in which the bitter taste of the active ingredient is masked and the fast dissolving film composition has a high content of 50% or higher. More particularly, provided is a pharmaceutical composition which comprises sildenafil or pharmaceutically acceptable salts thereof as an active ingredient, and which comprises a combination of a specific bitter taste masking agent to achieve masking of a bitter taste. Further, provided is a fast dissolving film composition which comprises a combination of a specific plasticizer to mask a bitter taste, and in which the physical properties of the high-content film are excellent. | 01-22-2015 |
20150048789 | METHOD FOR WIRELESS CHARGING AND ELECTRONIC DEVICE THEREOF - A wireless power transmitter performs a method for supplying power for wireless charging from the wireless power transmitter to a plurality of wireless power receivers. The wireless charging method includes allocating priorities to one or more electronic devices that connect for wireless charging, and supplying wireless power to the one or more electronic devices based on the priorities. Other embodiments may be implemented. | 02-19-2015 |
20150061970 | METHOD FOR SHARING SCREEN AND ELECTRONIC DEVICE THEREOF - A method and an apparatus for sharing a screen with a counterpart electronic device in an electronic device are provided. In the method, connection with at least one counterpart electronic device is performed. Data to display on the electronic device or data to transmit to the counterpart electronic device are determined. Data is transmitted to the counterpart electronic device. Data transmission to the counterpart electronic device is stopped based on state information of the electronic device or the counterpart electronic device. | 03-05-2015 |
20150063577 | SOUND EFFECTS FOR INPUT PATTERNS - Disclosed herein are a method and device for generating sound effects. Features of an input pattern are detected. A sound that reflects the input pattern is synthesized and played. | 03-05-2015 |
20150187350 | APPARATUS AND METHOD FOR REPORTING SPEECH RECOGNITION FAILURES - Provided are an apparatus and method for reporting speech recognition failures. The method includes detecting pure speech data from input speech data and outputting the detected pure speech data, determining at least one speech recognition failure for the pure speech data, and ascertaining speech recognition failure reasons from a check result for the speech recognition failures and outputting the ascertained speech recognition failure reasons. | 07-02-2015 |
20150223013 | METHOD FOR PROCESSING DATA RECEIVED AND AN ELECTRONIC DEVICE THEREOF - A method for operating a first electronic device is provided. The method includes receiving data from a second electronic device in short-range radio communication. The method also includes detecting a location of the first electronic device. The method further includes determining an execution method of the received data based on at least one of the location of the electronic device and one or more of communication region information of the short-range radio communication of the second electronic device, signal strength of the short-range radio communication in the communication region, and location information of the electronic device. | 08-06-2015 |
20150242608 | CONTROLLING INPUT/OUTPUT DEVICES - An electronic device is provided processor configured to: receive a biological signal of a user; detect whether the electronic device is attached to or detached from the user based on at least the biological signal; and control an I/O device operationally connected to the electronic device based on whether the electronic device is attached to or detached from the user. | 08-27-2015 |
20150277845 | METHOD AND ELECTRONIC DEVICE FOR PROVIDING FRAME INFORMATION - A method of operating an electronic device is provided. The method includes transmitting a plurality of frame information including to a second electronic device having function that can be controlled, determining whether the plurality of frame information have a variance exceeding a predetermined range, and based on the determining, transmitting control information for displaying the plurality of frame information through the second electronic device, by using at least one piece of frame information among transmitted the plurality of frame information. | 10-01-2015 |