UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION Patent applications |
Patent application number | Title | Published |
20160097679 | METHOD FOR ESTIMATING LAND SURFACE TERMPERATURE LAPSE RATE USING INFRARED IMAGE - A method of estimating land surface temperature lapse rate using an infrared image is disclosed. In the method of estimating land surface temperature lapse rate using an infrared image, a target area for the estimation of land surface temperature lapse rate is selected. The atmospheric transmittance of the target area is calculated. Reference temperature is estimated at a reference location set in the target area as desired. A temperature difference is calculated from the atmospheric transmittance and the estimated reference temperature, and then a temperature difference image is generated. Land surface temperature lapse rate is estimated from the temperature difference image and a Digital Elevation Map (DEM) in an identical area using an elevation-based temperature difference distribution. | 04-07-2016 |
20160033639 | METHOD AND APPARATUS FOR STACKING MULTI-TEMPORAL MAI INTERFEROGRAMS - An apparatus and method for stacking multi-temporal MAI interferograms Disclosed are disclosed herein. The apparatus includes a processor configured to: generate a forward-looking InSAR (Interferometric Synthetic Aperture Radar) interferogram and a backward-looking InSAR interferogram of multi-temporal interferometric pairs; generate a residual forward-looking interferogram and a residual backward-looking interferogram by removing low-frequency phase components from the forward-looking InSAR interferogram and the backward-looking InSAR interferogram; generate a stacked forward-looking interferogram and a stacked backward-looking interferogram by separately stacking the residual forward-looking interferogram and the residual backward-looking interferogram; and generate a stacked MAI interferogram based on a phase difference between the stacked forward-looking interferogram and the stacked backward-looking interferogram. | 02-04-2016 |
20150369913 | METHOD AND APPARATUS FOR CORRECTING IONIC DISTORTION OF SATELLITE RADAR INTERFEROGRAM - An apparatus and method for correcting the ionospheric distortion of an SAR (Synthetic Aperture Radar) interferogram are disclosed herein. The apparatus includes a multiple aperture SAR interferometry (MAI) interferogram generation unit, a transformed MAI interferogram generation unit, an ionospheric distortion interferogram generation unit, and a corrected SAR interferogram acquisition unit. The multiple aperture SAR interferometry (MAI) interferogram generation unit generates a multiple aperture SAR interferometry (MAI) interferogram using an SAR interferogram. The transformed MAI interferogram generation unit generates a transformed MAI interferogram representative of the azimuth direction derivatives of ionospheric distortion phases using the phases of the MAI interferogram. The ionospheric distortion interferogram generation unit generates an ionospheric distortion interferogram using the transformed MAI interferogram. The corrected SAR interferogram acquisition unit acquires a corrected SAR interferogram by eliminating the generated ionospheric distortion interferogram from the SAR interferogram. | 12-24-2015 |
20150102786 | PFC CONTROL CIRCUIT, ACTIVE PFC CIRCUIT AND PFC CONTROL METHOD - The present invention relates to a PFC control circuit, an active PFC circuit, and a PFC control method. According to an embodiment of the present invention, a PFC control circuit including: an inductor current sensing unit for sensing an inductor current of a PFC circuit; an output voltage feedback unit for outputting a feedback output signal; a sensing and feedback signal application unit for outputting a sensing voltage signal during switching duty on of the PFC circuit and adding the feedback output signal to the sensing voltage signal to output the added signal during switching duty off of the PFC circuit; and a PFC control unit for generating a comparison signal and generating a duty control signal from the comparison signal and a first reference signal to make variations due to an internal offset be removed or reduced is provided. | 04-16-2015 |
20150042648 | SYSTEM AND METHOD FOR AUTOMATIC GEOMETRIC CORRECTION USING RPC - The present invention relates to a technique for correcting a geometric image error calculated as a rational polynomial coefficient (RPC) only through a corresponding point extracted from a digital elevation model (DEM) and a stereoscopic image without direct measurement of a ground control point (GCP). To this end, a system for automatic geometric correction using an RPC in accordance with the present invention comprises: an auxiliary data extraction unit; a corresponding point extraction unit; a first ground coordinate extraction unit; a second ground coordinate extraction unit; an RPC correction model generation unit; and an image distortion correction unit. The auxiliary data extraction unit extracts two or more different images captured from the same ground surface and auxiliary data of the two or more different images. The corresponding point extraction unit extracts a corresponding point from the two or more different images through image matching. The first ground coordinate extraction unit extracts first ground coordinates from the corresponding point and an RPC model of the auxiliary data. The second ground coordinate extraction unit extracts second ground coordinates by using the first ground coordinates and a correlation coefficient of a DEM. The RPC correction model generation unit generates an RPC correction model by correcting the RPC model on the basis of the second ground coordinates. The image distortion correction unit corrects distortion of an image by allocating ground coordinates to each image coordinates of the image by using the second ground coordinates and the RPC correction model. | 02-12-2015 |
20140244505 | APPARATUSES, METHODS AND RECORDING MEDIUM FOR CONTROL PORTABLE COMMUNICATION TERMINAL AND ITS SMART WATCH - Disclosed are an apparatus, a method, and a recording medium for controlling a portable communication terminal and a smart watch of the portable communication terminal, which control an operation of a display unit only when a user obtains information on a movement of the smart watch from a sensor installed in the smart watch and view the smart watch. | 08-28-2014 |
20140206118 | COUPLED ASYMMETRIC QUANTUM CONFINEMENT STRUCTURES - Implementations and techniques for coupled asymmetric quantum confinement structures are generally disclosed. | 07-24-2014 |
20140185339 | POWER FACTOR CORRECTION CIRCUIT - There is provided a power factor correction circuit including: a power conversion circuit unit controlling an inductor current according to a switching signal applied to a main switch to convert an external input voltage into an output voltage having a predetermined range; an imbalance detection circuit outputting an imbalance state signal when the external input voltage is in an unbalanced state by using the inductor current; and a soft start circuit unit performing soft starting by adjusting the switching signal when the imbalance state signal is output by the imbalance detection circuit unit. | 07-03-2014 |
20140176089 | PHASE SHIFT CIRCUIT AND POWER FACTOR CORRECTION CIRCUIT INCLUDING THE SAME - There are provided a phase shift circuit and a power factor correction circuit including the same. The phase shift circuit includes a ramp generation unit charging or discharging a capacitor connected to a switch device to generate a ramp signal, a reference signal generation unit generating a predetermined reference signal from the ramp signal, and a comparison unit comparing the ramp signal with the reference signal to generate a clock signal, wherein at least one of the reference signal generation unit and the comparison unit changes a negative or positive value of offset components included in the reference signal or the ramp signal within every operating period of the switch device. | 06-26-2014 |
20140157214 | QUANTUM KARNAUGH MAP - Techniques for determining and a computing device configured to determine a quantum Karnaugh map through decomposing a quantum circuit into a multiple number of sub-circuits are provided. Also, techniques for obtaining and a computing device configured to obtain a quantum circuit which includes the minimum number of gates among possible quantum circuits corresponding to a quantum Karnaugh map are also provided. | 06-05-2014 |
20140130114 | APPARATUS AND METHOD OF PLAYING BROADCAST CONTENT IN BROADCASTING SYSTEM - A method and an apparatus for playing broadcast content in a broadcasting system are provided. The method and the apparatus enable a viewer to watch an entire event by broadcasting the event through different networks in a condition that the event may not be broadcast from start to finish over a single broadcasting network. | 05-08-2014 |
20140118250 | POINTING POSITION DETERMINATION - A glasses may include a glasses frame configured to detect a touch input to the glasses frame, and a processor configured to determine a pointing position within an image displayed by a display based, at least in part, on the touch input. | 05-01-2014 |
20140118243 | DISPLAY SECTION DETERMINATION - A glasses may include a pupil movement sensor configured to detect a movement of a pupil within an eye, a processor configured to determine a display section based, at least in part, on the movement of the pupil, and a display configured to display the determined display section. | 05-01-2014 |
20140035473 | ILLUMINATION DRIVING APPARATUS FOR LIGHT EMITTING DIODE AND METHOD THEREOF - There is provided an illumination driving apparatus for a light emitting diode, the apparatus including: a light emitting unit including M number of light emitting diodes (LEDs) connected in series and driven by an output voltage rectified in a rectifying unit; an LED switch unit including N number of LED switches connected in parallel with at least N number of the M LEDs, respectively, and connected in series; an LED switch control signal generating unit comparing the output voltage of the rectifying unit with each of the first to Nth preset reference voltages to generate N number of LED switch control signals controlling the LED switch unit; and an LED switch controlling unit transferring the N number of LED switch control signals to the LED switch unit. | 02-06-2014 |
20140008612 | Coupled Asymmetric Quantum Confinement Structures - Implementations and techniques for coupled asymmetric quantum confinement structures are generally disclosed. | 01-09-2014 |
20130298253 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING MESSAGE FOR DOWNLOADABLE CAS OR DRM IN MMT - A method for transmitting and receiving a message for Downloadable-Conditional Access System (D-CAS) or Downloadable-Digital Rights Management (D-DRM) in Moving Picture Experts Group Media Transport (MMT) is provided. The method includes, upon receiving Composition Information (CI) from an MMT server, acquiring signaling information for D-CAS or D-DRM, which is included in the CI, acquiring, from the signaling information, an address of a server from which software of D-CAS or D-DRM is downloadable, generating a request for the software based on the signaling information, and sending the request for the software to the server address. | 11-07-2013 |
20130289859 | SYSTEM AND METHOD FOR PROVIDING VEHICLES WITH INFORMATION ABOUT EVENTS OCCURRED ON ROAD - The present invention is directed to a system and method for providing vehicles with information about an event occurred on a road, capable of effectively providing information about an accident on a road to vehicles driving toward the region where the accident has occurred, even during hours or in regions in which vehicle traffic is low. | 10-31-2013 |
20130198837 | UNLOCKING SCHEMES - An end device may include a camera configured to capture an image of an object, a touch screen configured to receive a touch input and a processor configured to determine to unlock the end device based, at least in part, on the image of the object and the touch input. | 08-01-2013 |
20130194832 | CONVERTER DRIVING CIRCUIT, DUAL-MODE LLC RESONANT CONVERTER SYSTEM, AND METHOD OF DRIVING DUAL-MODE LLC RESONANT CONVERTER - Disclosed herein are a converter driving circuit for adjusting a variable range of a driving control voltage according to an amplitude and frequency change of a feedback voltage, a dual-mode LLC resonant converter system, and a method of driving the dual-mode LLC resonant converter. | 08-01-2013 |
20130141770 | POLARITON MODE OPTICAL SWITCH WITH COMPOSITE STRUCTURE - Devices, methods, and techniques for frequency-dependent optical switching are provided. In one embodiment, a device includes a substrate, a first optical-field confining structure located on the substrate, a second optical-field confining structure located on the substrate, and a composite structure located between the first and second optical-field confining structures. The second optical-field confining structure may be spaced apart from the first optical-field confining structure. The composite structure may include an embedding structure with a surface to receive photons and multiple quantum structures located in the embedding structure. | 06-06-2013 |
20130127525 | IC CIRCUIT - The present invention relates to an IC circuit. In an embodiment, an IC circuit includes: an RT terminal connected to an external; a current mirroring unit conducting a channel current between internal voltage power and the RT terminal and generating an internal reference current mirrored with the channel current; a negative feedback unit receiving the internal reference current, equalizing voltages of an RT terminal connection terminal and an internal reference current output terminal of the current mirroring unit to make the internal reference current constant, and providing the internal reference current inside the IC circuit; and an IC state indicating unit having a transistor, which operates complementarily with the current mirroring unit, connected between the RT terminal and a ground and providing the state of an IC or a system to the RT terminal by being linked with the complementary operation of the current mirroring unit. | 05-23-2013 |
20130097627 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING MULTIMEDIA SERVICE - A method for receiving a multimedia service is provided. The method includes receiving service specific information for at least one multimedia service provided from different networks, selecting one service based on the service specific information, and receiving the selected service. The service specific information includes one of a first service map table including information about at least one service which is transmitted over a plurality of logical channels, and a second service map table including information about at least one service which is transmitted over a single logical channel. Each of the first and second service map tables includes asset-related information. | 04-18-2013 |
20130081088 | APPARATUS AND METHOD OF PLAYING BROADCAST CONTENT IN BROADCASTING SYSTEM - A method and an apparatus for playing broadcast content in a broadcasting system are provided. The method and the apparatus enable a viewer to watch an entire event by broadcasting the event through different networks in a condition that the event may not be broadcast from start to finish over a single broadcasting network. | 03-28-2013 |
20130074141 | METHOD AND APPARATUS FOR SYNCHRONIZING MEDIA DATA OF MULTIMEDIA BROADCAST SERVICE - A method and an apparatus for synchronizing media data and auxiliary data received by a service through a broadcast network or a communication network in a multimedia broadcast service are provided. The method includes receiving regular media data provided for a broadcast service, receiving and storing control information regarding adjunct media data comprising auxiliary data regarding the regular media data, determining location information of the adjunct media data included in the control information, and receiving and storing the adjunct media data according to the location information. If an identifier of the adjunct media data is included in a header of the regular media data, reading the stored adjunct media data corresponding to the identifier of the adjunct media data, and executing the adjunct media data in synchronization with the regular media data according to synchronization information included in the header. | 03-21-2013 |
20130013544 | MIDDLEWARE DEVICE FOR THREE-TIER UBIQUITOUS CITY SYSTEM - Disclosed is a ubiquitous city (u-city) exclusive middleware to provide services to a u-city. A middleware device performs a role corresponding to a brain of a human being by aggregating u-city information collected through wired and wireless converged and complex communication networks, analyzes the aggregated information, finds an optimal service based on reasoned current context information and a given command, and processes the found service to be executed. The u-city exclusive middleware performs various embedded functions by operating in a three-tier method through a u-city infrastructure and a u-city portal, and an operating method and executed functions of the middleware follows a method of an operating system of a typical computer system. | 01-10-2013 |
20120235028 | PHOTODETECTOR CAPABLE OF DETECTING THE VISIBLE LIGHT SPECTRUM - Apparatuses capable of and techniques for detecting the visible light spectrum are provided. | 09-20-2012 |
20120185607 | APPARATUS AND METHOD FOR STORING AND PLAYING CONTENT IN A MULTIMEDIA STREAMING SYSTEM - To store and play contents streamed in a multimedia streaming system, an operating method of a server in the multimedia streaming system includes receiving a transmission request for a Media Presentation Description (MPD) file; and transmitting the MPD file including a flag indicating whether it is possible to generate a media file that is playable by a media file player by concatenating transmitted segments. | 07-19-2012 |
20120179373 | METHOD FOR MEASURING TOTAL PHOSPHORUS USING MULTI-PARAMETER WATER QUALITY DATA - Provided are a method and a system for measuring total phosphorus that may predict total phosphorus of a river valley using multi-parameter water quality that are measured in real time through a multi-parameter water quality measuring unit and the like, and may increase the accuracy thereof. The total phosphorus measuring method according to the present disclosure includes: computing a correlation between the multi-parameter water quality and the total phosphorus using multi-parameter water quality data and total phosphorus data measured for a predetermined period; selecting upper parameters having a high correlation from among the multi-parameter water quality based on the computation result; generating a total phosphorus prediction model through a regression analysis between the upper parameters and the total phosphorus; measuring the multi-parameter water quality; and predicting the total phosphorus by replacing the total phosphorus prediction model with the measured multi-parameter water quality. | 07-12-2012 |
20120087160 | POWER FACTOR CORRECTION CIRCUIT - There is provided a power factor correction circuit capable of correcting a power factor of a power converting module through increasing an input current by switching a main switching element of a power converting module on the basis of a first reference wave having a slope based on a first signal and an error voltage, in particular, by limiting a switching frequency on the basis of a first reference wave having a slope based on a second signal lower than a first signal and an error voltage when the switching frequency of the main switching element increases because an input voltage of the power converting module is low. | 04-12-2012 |
20120086515 | RELAXATION OSCILLATOR - There is provided relaxation oscillator. The relaxation oscillator includes: a ramp wave generator generating ramp waves by a complementary operation between a first capacitor module charged and discharged according to a first switching signal and a second capacitor module charged and discharged according to a second switching signal; a negative feedback circuit unit generating a compensation voltage for compensating errors with reference voltage by being fedback with the ramp waves; and a switching signal generator generating the first switching signal controlling the charging and discharging of the first capacitor module and the second switching signal controlling the charging and discharging of the second capacitor module from the compensation voltage and the ramp waves. As a result, the present invention can generate ramp waves having a stable frequency while preventing a frequency from being changed due to a delay or an offset of the comparator. | 04-12-2012 |
20120040483 | Copper Blend I-VII Compound Semiconductor Light-Emitting Devices - Implementations and techniques for semiconductor light-emitting devices including one or more copper blend I-VII compound semiconductor material barrier layers are generally disclosed. | 02-16-2012 |
20110273799 | NANOMETER SCALE MAGNETIZATION - Magnetic heads for perpendicular magnetic recording on magnetic recording media are provided. | 11-10-2011 |
20110187362 | DETECTION USING MAGNETIC FIELD - A device to detect a magnetic field is disclosed. The device includes a first set of nano-magnets and a second set of nano-magnets. The first set of nano-magnets may be operable to transmit a radio frequency (RF) signal to a target, and a second set of nano-magnets may be operable to induce an electrical signal in response to a magnetic resonance signal generated from the target. | 08-04-2011 |
20110182544 | OPTICAL FIBER SENSOR - An optical fiber sensor may include an optical fiber configured to receive a light having a first frequency from a light source and to transmit the light through the optical fiber, the transmitted light having the first frequency and a second frequency which is generated by stimulated Brillouin scattering (SBS), a photodetector configured to receive the transmitted light from the optical fiber and to convert the transmitted light into an electric signal and a sensing circuit configured to calculate an average squared value of the electric signal received from the photodetector, which is dependent on a frequency difference between the first frequency and the second frequency. | 07-28-2011 |
20110160542 | WAVEGUIDE - A waveguide receives a wave transmitted from an external power source and to guide the wave to reach within a width of a rectenna. The waveguide may include a negative refractive index medium and/or a surface plasmon medium. | 06-30-2011 |
20110138344 | QUANTUM KARNAUGH MAP - Techniques for determining and a computing device configured to determine a quantum Karnaugh map through decomposing a quantum circuit into a multiple number of sub-circuits are provided. Also, techniques for obtaining and a computing device configured to obtain a quantum circuit which includes the minimum number of gates among possible quantum circuits corresponding to a quantum Karnaugh map are also provided. | 06-09-2011 |
20110121263 | Coupled Asymmetric Quantum Confinement Structures - Implementations and techniques for coupled asymmetric quantum confinement structures are generally disclosed. | 05-26-2011 |
20110114995 | Copper Blend I-VII Compound Semiconductor Light-Emitting Devices - Implementations and techniques for semiconductor light-emitting devices including one or more copper blend I-VII compound semiconductor material barrier layers are generally disclosed. | 05-19-2011 |
20110095761 | DETECTION OF MAGNETIC FIELDS USING NANO-MAGNETS - Magnetic field detection techniques and devices are provided. In one embodiment, a device configured to detect a magnetic field includes a first set of nano-magnets and a second set of nano-magnets. The first set of nano-magnets is operable to induce a RF magnetic field, and the second set of nano-magnets is operable to induce a first electrical signal in response to magnetic resonance signals caused by the RF magnetic field. | 04-28-2011 |
20110095309 | SEMICONDUCTOR DEVICE - Semiconductor devices including a light emitting layer, and at least one surface plasmon metal layer in contact with the light emitting layer are provided. The light emitting layer includes an active layer having a first band gap, and one or more barrier layers having a second band gap. The first band gap is smaller than the second band gap. Methods for fabricating semiconductor devices are also provided. | 04-28-2011 |
20110043884 | POLARITON MODE OPTICAL SWITCH WITH COMPOSITE STRUCTURE - Devices, methods, and techniques for frequency-dependent optical switching are provided. In one embodiment, a device includes a substrate, a first optical-field confining structure located on the substrate, a second optical-field confining structure located on the substrate, and a composite structure located between the first and second optical-field confining structures. The second optical-field confining structure may be spaced apart from the first optical-field confining structure. The composite structure may include an embedding structure with a surface to receive photons and multiple quantum structures located in the embedding structure. | 02-24-2011 |
20110042721 | PHOTOVOLTAIC DEVICES - Implementations of quantum well photovoltaic devices are provided. In one embodiment, a photovoltaic device includes an active layer that includes a first barrier layer, a well layer located on the first barrier layer and made of a nitride semiconductor, and a second barrier layer located on the well layer. A metal layer is located adjacent to the active layer. | 02-24-2011 |
20110001125 | PHOTODETECTOR CAPABLE OF DETECTING LONG WAVELENGTH RADIATION - Apparatuses capable of and techniques for detecting long wavelength radiation are provided. | 01-06-2011 |
20110001124 | PHOTODETECTOR CAPABLE OF DETECTING THE VISIBLE LIGHT SPECTRUM - Apparatuses capable of and techniques for detecting the visible light spectrum are provided. | 01-06-2011 |
20110001122 | COMPOUND SEMICONDUCTORS - Compound semiconductors capable of emitting light in the green spectrum are provided. The compound semiconductors may display improved quantum efficiencies when applied to various optical devices. Also, light emitting diodes and light emitting diode modules comprising the compound semiconductors are provided. | 01-06-2011 |
20110001121 | COMPOUND SEMICONDUCTORS - Semiconductor emitting devices that offset stresses applied to a quantum well region and reduce internal fields due to spontaneous and piezoelectric polarizations are disclosed. In one embodiment, a semiconductor emitting device includes a quantum well region comprising an active layer that emits light and at least one barrier layer disposed adjacent the active layer, a means for impressing an electric field across the quantum well region to inject carriers into the quantum well region, and a means for impressing an offset electric field across the quantum well region to offset the polarization field formed in the quantum well region. | 01-06-2011 |
20100327278 | LAMINATED STRUCTURES - Laminated structures having improved optical gain are provided. In one embodiment, a laminated structure includes a first cladding layer having at least two barrier layers which have different energy band gaps, an active layer formed on the first cladding layer and having an active layer energy band gap, and a second cladding layer formed on the active layer and including at least two barrier layers which have different energy band gaps. The first cladding layer and the second cladding layer may be doped with a different type of dopant. | 12-30-2010 |
20100326489 | LIGHT-ELECTRICITY CONVERSION DEVICE - Light-electricity conversion devices based on II-VI semiconductor materials are provided. The light-electricity conversion devices are able to cover a wide spectrum range. | 12-30-2010 |
20100315273 | DIGITAL-TO-ANALOG CONVERTER - A digital-to-analog converter (DAC) includes multiple electro-optical converters to generate multiple first optical signals in response to multiple input signals, multiple optical attenuators to attenuate intensities of the first optical signals and to generate multiple second optical signals, an optical coupler to combine the second optical signals and to generate a third optical signal, and a photodetector to convert the third optical signal into an electrical analog signal. | 12-16-2010 |
20100314608 | PHOTODETECTORS - Implementations of quantum well photodetectors are provided. | 12-16-2010 |
20100301308 | PHOTODETECTORS - Implementations of quantum well photodetectors are provided. In one embodiment, a quantum structure includes a first barrier layer, a well layer located on the first barrier layer, and a second barrier layer located on the well layer. A metal layer is located adjacent to the quantum structure. | 12-02-2010 |
20100276730 | SEMICONDUCTOR DEVICE - Semiconductor devices having at least one barrier layer are disclosed. In some embodiments, a semiconductor device includes an active layer and one or more barrier layers disposed on either one side or both sides of the active layer. The active layer may be composed of a first compound semiconductor material, and the one or more barrier layers may be composed of a second compound semiconductor material. In some embodiments, the composition of the one or more barrier layers may be adjusted to increase an optical dipole matrix element. | 11-04-2010 |
20100276661 | POLARITON MODE OPTICAL SWITCH - Devices, methods, and techniques for frequency-dependent optical switching are provided. In one embodiment, a device includes a substrate, a first and a second optical-field confining structures located on the substrate, and a quantum structure disposed between the first and the second optical-field confining structures. The first optical-field confining structure may include a surface to receive photons. The second optical-field confining structure may be spaced apart from the first optical-field confining structure. The first and the second optical-field confining structures may be configured to substantially confine therebetween an optical field of the photons. | 11-04-2010 |
20100270892 | PIEZOELECTRIC ACTUATOR - Piezoelectric actuators having a piezoelectric layer in which a cantilever portion is formed are disclosed. In one embodiment, an actuator includes a support layer and a piezoelectric layer. The piezoelectric layer may include a supported portion formed on the support layer and a cantilever portion which extends beyond the support layer. | 10-28-2010 |
20100270592 | SEMICONDUCTOR DEVICE - Semiconductor devices having at least one barrier layer with a wide energy band gap are disclosed. In some embodiments, a semiconductor device includes at least one active layer, and at least one barrier layer disposed on at least one surface of the at least one active layer. The at least one barrier layer has a wider energy band gap than the energy band gap of the at least one active layer. The compounds of the active layer and the barrier layer may be selected to reduce relaxation time of an electron or hole in the active layer. | 10-28-2010 |
20100270591 | HIGH-ELECTRON MOBILITY TRANSISTOR - Disclosed are high electron mobility transistors (HEMTs). In some embodiments, a HEMT includes a channel layer composed of a first compound semiconductor material and one or more barrier layers disposed on either one side or both sides of the channel layer and composed of a second compound semiconductor material. | 10-28-2010 |
20100270547 | SEMICONDUCTOR DEVICE - Semiconductor devices having at least one barrier layer with a wide energy band gap are disclosed. In some embodiments, a semiconductor device includes at least one active layer composed of a first compound, and at least one barrier layer composed of a second compound and disposed on at least one surface of the at least one active layer. The at least one barrier layer may have a wider energy band gap than an energy band gap of the at least one active layer. The compositions of the first and second compounds may be controlled to adjust the difference between Fermi functions for conduction band and valence band in the at least one active layer. | 10-28-2010 |
20100082886 | VARIABLE SPACE PAGE MAPPING METHOD AND APPARATUS FOR FLASH MEMORY DEVICE - Disclosed is a method and apparatus embodying a flash translation layer (FTL) in a storage device including a flash memory. The FTL may classify a block into a sequential group and a fusion group based on a locality of a write request. The FTL may store data in blocks of the fusion group by using a page mapping scheme, and sequentially store data by using a block mapping scheme. The FTL may improve efficiency of garbage collection operation that is performed by using limited redundant blocks and also may increase efficiency of a non-sequential reference operation. | 04-01-2010 |
20100053808 | NANOMETER SCALE MAGNETIZATION - Magnetic heads for perpendicular magnetic recording on magnetic recording media are provided. | 03-04-2010 |
20100040102 | OPTOELECTRONIC DEVICES - Optoelectronic devices are provided. In one embodiment, a device may include a first conductivity type cladding layer including a first barrier layer, an active layer formed on the first conductivity-type cladding layer, the active layer including a well layer made of a nitride semiconductor, and a second conductivity-type cladding layer formed on the active layer and including a second barrier layer. The active layer is positioned between and adjacent to the first barrier layer and the second barrier layer. | 02-18-2010 |
20100039107 | MAGNETIC CARRIER MANIPULATION AND DETECTION USING A NANOMETER SCALE TRANSFORMER - A nanometer scale transformer configured to manipulate and detect a magnetic carrier is provided. | 02-18-2010 |