Patent application number | Description | Published |
20090140439 | METHOD OF MANUFACTURING A CHIP AND A CHIP STACK - Provided are a chip, a chip stack, and a method of manufacturing the Same. A plurality of chips which each include: at least one pad formed on a wafer; and a metal layer which protrudes up to a predetermined thickness from the bottom of the wafer and is formed in a via hole exposing the bottom of the pad are stacked such that the pad and the metal layer of adjacent chips are bonded. This leads to a simplified manufacturing process, high chip performance and a small footprint for a chip stack. | 06-04-2009 |
20100134208 | RADIO FREQUENCY DEVICE - An RF device is provided. The RF device includes a vibratile carbon nanotube having a nanotube natural frequency (f | 06-03-2010 |
20110017289 | CIGS SOLAR CELL AND METHOD OF FABRICATING THE SAME - Provided are a CIGS solar cell and a method of fabricating the CIGS solar cell. In the method, a buffer layer exposing protrusions is formed. Then, a window electrode layer having an uneven surface conforming with the protrusions of the buffer layer is formed. Thus, an additional process for making the upper surface of a window electrode layer rough is unnecessary in order to decrease surface reflectance of incident sunlight and increase the solar cell efficiency, so that productivity can be improved. | 01-27-2011 |
20130020649 | NITRIDE ELECTRONIC DEVICE AND METHOD FOR MANUFACTURING THE SAME - The present disclosure relates to a nitride electronic device and a method for manufacturing the same, and particularly, to a nitride electronic device and a method for manufacturing the same that can implement various types of nitride integrated structures on the same substrate through a regrowth technology (epitaxially lateral over-growth: ELOG) of a semi-insulating gallium nitride (GaN) layer used in a III-nitride semiconductor electronic device including Group III elements such as gallium (Ga), aluminum (Al) and indium (In) and nitrogen. | 01-24-2013 |
20130069127 | FIELD EFFECT TRANSISTOR AND FABRICATION METHOD THEREOF - A method for fabricating a field effect transistor according to an exemplary embodiment of the present disclosure includes: forming an active layer, a cap layer, an ohmic metal layer and an insulating layer on a substrate; forming multilayered photoresists on the insulating layer; patterning the multilayered photoresists to form a photoresist pattern including a first opening for gate electrode and a second opening for field electrode; etching the insulating layer by using the photoresist pattern as an etching mask so that the insulating layer in the first opening is etched more deeply and the cap layer is exposed through the first opening; etching the cap layer exposed by etching the insulating layer through the first opening to form a gate recess region; and depositing a metal on the gate recess region and the etched insulating layer to form a gate-field electrode layer. | 03-21-2013 |
20130069173 | POWER SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREOF - Disclosed are a power semiconductor device and a method of fabricating the same which can increase a breakdown voltage of the device through a field plate formed between a gate electrode and a drain electrode and achieve an easier manufacturing process at the same time. The power semiconductor device according to an exemplary embodiment of the present disclosure includes a source electrode and a drain electrode formed on a substrate; a dielectric layer formed between the source electrode and the drain electrode to have a lower height than heights of the two electrodes and including an etched part exposing the substrate; a gate electrode formed on the etched part; a field plate formed on the dielectric layer between the gate electrode and the drain electrode; | 03-21-2013 |
20130169365 | AUTOMATIC GAIN CONTROL FEEDBACK AMPLIFIER - Disclosed is an automatic gain control feedback amplifier that can arbitrarily control a gain even when a difference in input signal is large. The automatic gain control feedback amplifier includes: an amplification circuit unit configured to amplify voltage input from an input terminal and output the amplified voltage to an output terminal; a feedback circuit unit connected between the input terminal and the output terminal and including a feedback resistor unit of which a total resistance value is determined by one or more control signals and a feedback transistor connected to the feedback resistor unit in parallel; and a bias circuit unit configured to supply predetermined bias voltage to the feedback transistor. | 07-04-2013 |
20130187197 | HIGH ELECTRON MOBILITY TRANSISTOR AND MANUFACTURING METHOD THEREOF - Disclosed is a manufacturing method of a high electron mobility transistor. The method includes: forming a source electrode and a drain electrode on a substrate; forming a first insulating film having a first opening on an entire surface of the substrate, the first opening exposing a part of the substrate; forming a second insulating film having a second opening within the first opening, the second opening exposing a part of the substrate; forming a third insulating film having a third opening within the second opening, the third opening exposing a part of the substrate; etching a part of the first insulating film, the second insulating film and the third insulating film so as to expose the source electrode and the drain electrode; and forming a T-gate electrode on a support structure including the first insulating film, the second insulating film and the third insulating film. | 07-25-2013 |
20130292689 | WAFER LEVEL PACKAGED GAN POWER SEMICONDUCTOR DEVICE AND THE MANUFACTURING METHOD THEREOF - Disclosed are a GaN (gallium nitride) compound power semiconductor device and a manufacturing method thereof. The gallium nitride compound power semiconductor device includes: a gallium nitride compound element formed by being grown on a wafer; a contact pad including a source, a drain, and a gate connecting with the gallium nitride compound element; a module substrate to which the nitride gallium compound element is flip-chip bonded; a bonding pad formed on the module substrate; and a bump formed on the bonding pad of the module substrate so that the contact pad and the bonding pad are flip-chip bonded. By this configuration, it is possible to reduce the process costs by forming the bump on the substrate based on the wafer level, rapidly emit the heat generated from an AlGaN HEMT device by forming the sub source contact pad and the sub drain contact pad of the substrate in the active region, and efficiently emit the heat generated from the AlGaN HEMT device by forming a via hole on the substrate and filling the via hole with the conductive metal. | 11-07-2013 |
20140152338 | ELECTRONIC DEVICE RELIABILITY MEASUREMENT SYSTEM AND METHOD - Provided is a low-cost and high-efficient system for measuring reliability of an electronic device. According to the present invention, a single input power source for applying power to an input terminal of a plurality of electronic device samples and a single output power source for applying power to an output terminal of the plurality of electronic device samples are provided. Further, an input switch having first switches of which the number corresponds to the number of the plurality of electronic device samples, the input switch being installed between the input power source and the input terminal so that the first switches are selectively switched to apply input power; and an output switch having second switches of which the number corresponds to the number of the plurality of electronic device samples, the output switch being installed between the output power source and the output terminal so that the second switches are selectively switched to apply output power are provided. | 06-05-2014 |
20140159115 | TRANSISTOR AND METHOD OF FABRICATING THE SAME - A high electron mobility transistor includes a T-type gate electrode disposed on a substrate between source and drain electrodes and insulating layers disposed between the substrate and the T-type gate electrode. The insulating layers include first, second, and third insulating layers. The third insulating layer is disposed between the substrate and a head portion of the T-type gate electrode such that a portion of the third insulating layer is in contact with a foot portion of the T-type gate electrode. The second insulating layer is disposed between the substrate and the head portion of the T-type gate electrode to be in contact with the third insulating layer. The first insulating layer and another portion of the third insulating layer are sequentially stacked between the substrate and the head portion of the T-type gate electrode to be in contact with the second insulating layer. | 06-12-2014 |
20140160689 | PACKAGE - A package includes a ground plate, a chip mounting plate disposed at a side of the ground plate and having a top surface lower than a top surface of the ground plate, a chip on the chip mounting plate, a first input/output terminal opposite to the chip mounting plate and disposed at another side of the ground plate, and a second input/output terminal opposite to the ground plate and disposed at a side of the chip mounting plate. The first and second input/output terminals are electrically connected to the chip. | 06-12-2014 |
20140167175 | TRANSISTOR AND METHOD OF FABRICATING THE SAME - A field effect transistor is provided. The transistor may include a source electrode and a drain electrode provided spaced apart from each other on a substrate and a ‘+’-shaped gate electrode provided on a portion of the substrate located between the source and drain electrodes. | 06-19-2014 |
20140184333 | FEEDBACK AMPLIFIER - Provided is a feedback amplifier. The feedback amplifier includes: an amplification circuit unit amplifying a bust packet signal inputted from an input terminal and outputting the amplified voltage to an output terminal; a feedback circuit unit disposed between the input terminal and the output terminal and controlling whether to apply a fixed resistance value to a signal outputted to the output terminal; a packet signal detection unit detecting a peak value of a bust packet signal from the output terminal and controlling whether to apply the fixed resistance value; and a bias circuit unit generating a bias voltage, wherein the feedback circuit unit determines a feedback resistance value to change the fixed resistance value in response to at least one control signal and adjusts a gain by receiving the bias voltage. | 07-03-2014 |
20140213045 | NITRIDE ELECTRONIC DEVICE AND METHOD FOR MANUFACTURING THE SAME - The present disclosure relates to a nitride electronic device and a method for manufacturing the same, and particularly, to a nitride electronic device and a method for manufacturing the same that can implement various types of nitride integrated structures on the same substrate through a regrowth technology (epitaxially lateral over-growth: ELOG) of a semi-insulating gallium nitride (GaN) layer used in a III-nitride semiconductor electronic device including Group III elements such as gallium (Ga), aluminum (Al) and indium (In) and nitrogen. | 07-31-2014 |
20140363937 | POWER SEMICONDUCTOR DEVICE AND FABRICATION METHOD THEREOF - Disclosed are a power semiconductor device and a method of fabricating the same which can increase a breakdown voltage of the device through a field plate formed between a gate electrode and a drain electrode and achieve an easier manufacturing process at the same time. The power semiconductor device according to an exemplary embodiment of the present disclosure includes a source electrode and a drain electrode formed on a substrate; a dielectric layer formed between the source electrode and the drain electrode to have a lower height than heights of the two electrodes and including an etched part exposing the substrate; a gate electrode formed on the etched part; a field plate formed on the dielectric layer between the gate electrode and the drain electrode; and a metal configured to connect the field plate and the source electrode. | 12-11-2014 |
20150087142 | HIGH ELECTRON MOBILITY TRANSISTOR AND MANUFACTURING METHOD THEREOF - Disclosed is a manufacturing method of a high electron mobility transistor. The method includes: forming a source electrode and a drain electrode on a substrate; forming a first insulating film having a first opening on an entire surface of the substrate, the first opening exposing a part of the substrate; forming a second insulating film having a second opening within the first opening, the second opening exposing a part of the substrate; forming a third insulating film having a third opening within the second opening, the third opening exposing a part of the substrate; etching a part of the first insulating film, the second insulating film and the third insulating film so as to expose the source electrode and the drain electrode; and forming a T-gate electrode on a support structure including the first insulating film, the second insulating film and the third insulating film. | 03-26-2015 |
20150177309 | TEST DEVICE FOR TESTING PLURALITY OF SAMPLES AND OPERATING METHOD THEREOF - A test device includes: a testing unit connected with a measurement line, and configured to apply bias to the measurement line and measure the measurement line; a plurality of switching units configured to electrically connect the measurement line and the plurality of samples; and a control unit configured to sequentially turn on the plurality of switching units to sequentially apply the bias to the plurality of samples. The control unit determines whether a corresponding device sample has a defect based on a first measurement value according to measurement by the testing unit when the bias is applied to each of the plurality of samples. | 06-25-2015 |
20150270822 | COMPONENT PACKAGE INCLUDING MATCHING CIRCUIT AND MATCHING METHOD THEREOF - Provided herein is a component package including a matching unit and a matching method thereof, the matching unit including: a substrate; a transmission line formed on the substrate, the transmission line being connected to a terminal of the component package; a bonding wire electrically connecting the transmission line and a central component; and a capacitor unit having a plurality of capacitors electrically connected with the transmission line by wiring connection, wherein an inductance of the matching unit is variable by adjusting a length of the bonding wire, and a capacitance of the matching unit is variable by increasing or reducing the number of capacitors electrically connected to the transmission line, of among the capacitors inside the capacitor unit, by extending or cutting off the wiring connection. | 09-24-2015 |
20150349736 | FEEDBACK AMPLIFIER - Provided herein is a feedback amplifier including an amplifier circuit configured to amplify an input signal input from an input terminal and output the amplified input signal to an output terminal; a feedback circuit configured to apply a feedback resistance value to a signal output to the output terminal, and to control a gain of the amplifier circuit by adjusting the input signal by a bias voltage applied with a feedback resistance value determined; a packet signal sensor configured to generate a fixed resistance control signal for controlling a fixed resistance value included in the feedback resistance value through a comparison between the output from the output terminal with a minimum signal level; and a fixed resistance controller configured to control the fixed resistance value included in the feedback resistance value in response to the fixed resistance control signal. | 12-03-2015 |
Patent application number | Description | Published |
20080256153 | RANDOM NUMBER SIGNAL GENERATOR USING PULSE OSCILLATOR - A random number signal generator using pulse oscillators, the generator including: a first pulse oscillator oscillating a first pulse at high speed; a second pulse oscillator oscillating a second pulse; a sampler receiving an output pulse of the first oscillator as data, receiving an output pulse of the second pulse oscillator as a clock signal, and outputting a plurality of output signals; and a digital processor generating a random number signal with a desired size by using the output signals of the sampler. | 10-16-2008 |
20100104098 | CRYPTOGRAPHIC METHOD AND DEVICE FOR SCHEDULING AND COMPRESSING MESSAGE BASED ON SECURE HASH ALGORITHM - The present invention relates to a secure hash algorithm (SHA)-based message schedule operation method, a message compression operation method, and a cryptographic device performing the same. The present invention sequentially performs the message schedule operation by using an adder. Also, a memory for storing operation data input for the message schedule operation is used from a 17th round to store intermediate data generated by the message schedule operation. Further, the message compression operation is sequentially performed by using one adder. | 04-29-2010 |
20100146296 | APPARATUS AND METHOD FOR HASH CRYPTOGRAPHY - An apparatus for hash cryptography has a hardware structure that is capable of providing both secure hash algorithm (SHA)-1 hash calculation and SHA-256 hash calculation. The apparatus for hash cryptography generates a plurality of first message data corresponding to a plurality of first rounds when the SHA-1 hash calculation is performed and generates a plurality of second message data corresponding to a plurality of second rounds when the SHA-256 hash calculation is performed by using one memory, one first register, one XOR calculator, and one OR calculator, calculates a message digest by the SHA-1 hash calculation by using the plurality of first message data when the SHA-1 hash calculation is performed, and calculates a message digest by the SHA-256 by using the plurality of second message data when the SHA-256 hash calculation is performed. | 06-10-2010 |
20110085035 | APPARATUS AND METHOD FOR PROTECTING PRIVACY INFORMATION OF SURVEILLANCE IMAGE - An apparatus for protecting privacy information of a surveillance image includes a key management unit for generating and managing keys used to unmask a masked input image; an input image processing unit for unmasking the input image using the keys, decoding the unmasked input image to acquire an uncompressed image data, and then applying a second masking on an area containing privacy information of the image data. Further, the apparatus for protecting the privacy information of the surveillance image includes an image recording unit for encoding the image data to which the second masking has been applied to store the encoded image data. | 04-14-2011 |
20110145574 | SECURITY MANAGEMENT SERVER AND IMAGE DATA MANAGING METHOD THEREOF - A security management server includes an input unit for receiving image data from at least one network camera; a control unit for assigning an access authority level to each image data received via the input unit; and a storage unit for storing therein the image data along with the access authority levels assigned by the control unit. When receiving a request for a specific image data among the image data stored in the storage unit from a user having a user access authority level, the control unit compares the user access authority level and the access authority level assigned to the specific image data, and based on comparison result thereof, selectively provides the specific image data to the user. | 06-16-2011 |
20110145582 | METHOD FOR SHARING AND UPDATING KEY USING WATERMARK - A method for sharing and updating a key using a watermark is disclosed. The method includes receiving an image to be encoded from an image input device encoding the image, and inserting a master key value as a watermark into the encoded image, for use as an input of a key derivation function. | 06-16-2011 |
20120120248 | IMAGE PHOTOGRAPHING DEVICE AND SECURITY MANAGEMENT DEVICE OF OBJECT TRACKING SYSTEM AND OBJECT TRACKING METHOD - An image photographing device of an object tracking system includes: an image recognizing module for collecting image information within a field of view (FOV) region in real time, recognizing occurrence of an event from the collected image information to extract an object contributing to the occurrence of the event, and sensing whether the extracted object is out of the FOV region or not. The device further includes an object tracking module for extracting property of the object from the extracted object to generate metadata, storing the metadata in a database, and providing the metadata stored in the database to ambient image photographing devices based on the sensing result of the image recognizing module. | 05-17-2012 |
20120134540 | METHOD AND APPARATUS FOR CREATING SURVEILLANCE IMAGE WITH EVENT-RELATED INFORMATION AND RECOGNIZING EVENT FROM SAME - An apparatus for creating a surveillance image with event-related information includes an event detection unit configured to detect an event in the surveillance image, an encoding unit configured to encode the surveillance image into a bit stream of the surveillance image, an event information creation unit configured to create event-related information based on the detected event, and a parsing unit configured to parse the encoded surveillance image and insert the event-related information into the bit stream of the encoded surveillance image. | 05-31-2012 |
20120147180 | METHOD AND SYSTEM FOR PROVIDING INTERFACE COMPATIBILITY BETWEEN DEVICES IN SYSTEM - A video surveillance system provides interface compatibility. The system includes a plurality of security devices connected to a network and configured to collect video data, a security server configured to make a connection request to a target security device to monitor the video data collected by the target security device, and an interface conversion server configured to convert the connection request in conformity to an interface of the target security device. The interface conversion server is further configured to convert the video data collected by the target security device having a non-standard interface in conformity to a standard interface in order for the security server to monitor the collected video data. | 06-14-2012 |
20120147186 | SYSTEM AND METHOD FOR RECORDING TRACK OF VEHICLES AND ACQUIRING ROAD CONDITIONS USING THE RECORDED TRACKS - An image recording device mounted to a vehicle includes an imaging unit for capturing a sequence of images including an image of a road that the vehicle is running and circumstances around the road by taking photographs; an image management unit for storing the captured images in a recording medium and for extracting a target image corresponding to a request for image transmission from the recording medium; and a communication unit for receiving the request for image transmission and for transmitting the extracted images to the external entity. | 06-14-2012 |
20120166381 | APPARATUS AND METHOD FOR DETECTING RISKY SITUATIONS - An apparatus for detecting risky situations includes a detection unit for detecting a risky situation and reporting the detected risky situation, and a control unit for analyzing and assessing the risky situation reported from the detection unit to take measures to the assessed risky situation. | 06-28-2012 |
20120195425 | SECURITY VIDEO TRANSMISSION APPARATUS, VIDEO DATA RECEPTION APPARATUS, AND KEY GENERATION METHOD THEREOF - There is provided a security video transmission apparatus for generating and updating an encryption key by using video data, having a property of a random number which is continuously generated in real time, as random number data in order to generate a key, encrypting the video data using the encryption key, and then transmitting the encrypted video data. | 08-02-2012 |
20130042297 | METHOD AND APPARATUS FOR PROVIDING SECURE SOFTWARE EXECUTION ENVIRONMENT BASED ON DOMAIN SEPARATION - An apparatus for providing a secure environment of software execution in a terminal device includes a normal service domain and a secure service domain into which a domain of the software is divided based on virtualization. The normal service domain executes a normal service on elements of the software, and the secure service domain executes a security service on elements of the software in response to a request for a security service of the software elements from the normal service domain. | 02-14-2013 |
20130074190 | APPARATUS AND METHOD FOR PROVIDING SECURITY FUNCTIONS IN COMPUTING SYSTEM - An apparatus for providing security functions in a computing system includes: at least one normal service domain executing service; a secure service domain performing integrity verification on a service execution environment of at least one normal service domain, and performing the security service function for the service in accordance with the result of the integrity verification; and a virtual machine monitor separating service execution environments of at least one normal service domain and the secure service domain, respectively, based on the same hardware device. According to the present invention, it is possible to enhance the security for execution environments of the computing system and the data stored in the system, by allowing the corresponding services, which need security service functions in the normal service domain, to be executed necessarily only when integrity verification of the execution environment succeeds by linking the secure service domain. | 03-21-2013 |
20130210348 | APPARATUS AND METHOD FOR PROVIDING NEAR FIELD COMMUNICATION FOR MOBILE DEVICE - An apparatus for providing near field communication (NFC) for a mobile device, includes a USB (universal serial bus) signal processing unit configured to convert a signal of the mobile device, which is received through a USB interface into a value to be processed in a central processing unit, and convert a value received from the central processing unit into a signal to be transmitted to the USB interface. Further, the apparatus includes an analog signal processing unit configured to convert an analog signal received from an outside device into a digital signal, and convert a digital signal of the central processing unit into an analog signal to transmit the converted analog signal to the antenna. | 08-15-2013 |
20140024412 | UNIVERSAL SUBSCRIBER IDENTIFICATION MODULE CARD, INCLUDING SECURITY CHIP, FOR MOBILE TERMINAL AND COMMUNICATION METHOD USING THE SAME - Disclosed herein are a universal subscriber identification module card and a communication method using the same. The universal subscriber identification module card includes a Universal Subscriber Identification Module (USIM) chip, a pad, and a security chip. The USIM chip performs the user authentication of a mobile terminal. The pad electrically connects the USIM chip to the mobile terminal when the USIM chip is inserted into the mobile terminal. The security chip performs a security function for the mobile terminal independently of the USIM chip and shares the two power terminals of the pad with the USIM chip. | 01-23-2014 |
20140082690 | MOBILE COMPUTING SYSTEM FOR PROVIDING HIGH-SECURITY EXECUTION ENVIRONMENT - A mobile computing system for providing a high-security execution environment is provided. The mobile computing system separates execution environments in the same mobile device on the basis of virtualization technology and manages user-specific execution environments using the same hardware security module, thereby facilitating protection of personal privacy. | 03-20-2014 |
20150106648 | SMARTCARD INTERFACE CONVERSION DEVICE, EMBEDDED SYSTEM HAVING THE SAME DEVICE AND METHOD FOR TRANSFERRING DATA SIGNAL USED IN THE SAME DEVICE - The present invention relates to an apparatus and a method for transferring a data signal between a smartcard interface and an interface of a processor within an embedded system. | 04-16-2015 |
Patent application number | Description | Published |
20100213584 | ULTRA WIDEBAND HERMETICALLY SEALED SURFACE MOUNT TECHNOLOGY FOR MICROWAVE MONOLITHIC INTEGRATED CIRCUIT PACKAGE - An ultra wideband hermetically sealed surface mount package for a microwave monolithic integrated circuit (MMIC) is provided including: an integrated circuit; a package body being mounted with the integrated circuit and comprising a plurality of first dielectrics formed in a multilayer, a first line unit mounted to a circuit substrate and is electrically connected with an external circuit, a second line unit upwardly extended from the first line unit and is electrically connected with the first line unit, a third line unit extended to the right angle from the second line unit and is electrically connected with the second line unit, and a bonding unit that electrically connects the third line unit and the mounted integrated circuit; and a package cover being formed on the package body to seal the integrated circuit and comprising a plurality of second dielectrics formed in a multilayer. | 08-26-2010 |
20110291701 | HIGH SPEED FLIP-FLOP CIRCUIT AND CONFIGURATION METHOD THEREOF - A high speed flip-flop circuit and a configuration method thereof are provided. A small number of transistors may be used to configure a flip-flop circuit, so that the flip-flop circuit may be operated at a high-speed. Additionally, an area occupied by the flip-flop circuit may be reduced, and power consumption may be reduced. Accordingly, the flip-flop circuit may be integrated together with a microwave frequency integrated circuit using a Gallium Arsenide (GaAs) compound semiconductor process. | 12-01-2011 |
20150137907 | DIRECTIONAL COUPLER HAVING HIGH ISOLATION - Provided is a directional coupler having high isolation, the directional coupler including a first directional coupler including a first main line and a first sub-line, and a second directional coupler including a second main line and a second sub-line, wherein the first directional coupler is connected to the second directional coupler in series. | 05-21-2015 |
20150145707 | DIGITAL SERIAL-TO-PARALLEL CONVERTER AND GaAs MMIC USING THE SAME - A digital serial-to-parallel converter capable of minimizing a malfunction of a circuit by more stably performing an operation of a D flip flop in implementing a GaAs MMIC digital serial-to-parallel converter and a GaAs MMIC using the same are disclosed. The digital serial-to-parallel converter includes: a converter configured to convert a received clock signal, serial data, and load signal of TTL into a DCFL signal; a plurality of D flip flops configured to transmit the serial data received through the converter to a D flip flop of a next stage by the clock signal received through the converter and output the serial data of the D flip flop of the next stage by the load signal received through the converter; and a plurality of buffers configured to receive the serial data from the plurality of D flip flops to generate and output complementary signals. | 05-28-2015 |
Patent application number | Description | Published |
20090154514 | OPTICAL AMPLIFIER-INTEGRATED SUPER LUMINESCENT DIODE AND EXTERNAL CAVITY LASER USING THE SAME - Provided is a super luminescent diode having low power consumption due to low threshold current and a high output power in low-current operation, which is suitable for an external cavity laser. The super luminescent diode for use in the external cavity laser is divided into a super luminescent diode (SLD) region and a semiconductor optical amplifier (SOA) region to provide a light source having a low threshold current and a nearly double output power of a conventional SLD. | 06-18-2009 |
20090304325 | OPTICAL WIRING MODULE - Provided is an optical wiring module. The optical wiring module includes a light source mounted on a surface of a substrate, a metal optical waveguide coupled to a transverse magnetic mode of light emitted from the light source and using a long-range surface palsmon polariton, and a photodetector. The optical wiring module has a simple structure enabling it to be further miniaturized and its yield to be increased. | 12-10-2009 |
20100158440 | LIGHT EMITTING DEVICE AND OPTICAL COUPLING MODULE - Provided are a light emitting device and an optical coupling module. The device includes a substrate, a light emitting part provided to the substrate, and a reflecting part provided to a lower surface of the substrate. The light emitting part includes an active pattern disposed on the substrate, an upper mirror provided to an upper portion of the active pattern, and a lower mirror provided to a lower portion of the active pattern. The light emitting part may emit light normal to the substrate, and the reflecting part may reflect the emitted light to a side surface of the substrate. | 06-24-2010 |
20100158445 | FLEXIBLE WAVEGUIDE STRUCTURE AND OPTICAL INTERCONNECTION ASSEMBLY - Provided are a flexible waveguide structure and an optical interconnection assembly. The flexible waveguide structure includes a thin film strip core, an inner cladding layer, and an outer cladding layer. The thin film strip core has opposed first and second surfaces and is formed of a metal. The inner cladding layer covers at least one of the first and second surfaces of the thin film strip core. The outer cladding layer covers the inner cladding layer. The inner cladding layer has a refractive index higher than that of the outer cladding layer. | 06-24-2010 |
20100265349 | DIGITAL CAMERA MODULE - Provided is a digital camera module. The digital camera module includes an image sensor generating an electrical signal including a video signal and a clock signal and an optical interconnection unit converting the at least one of the video and clock signals into an optical signal to transmit the converted optical signal. The digital camera module further includes an image signal processor receiving the video signal restored from the optical signal to the electrical signal to convert the received video signal into a signal that is visually displayable. | 10-21-2010 |
20120146952 | OPTICAL TOUCH PANEL - Provided is an optical touch panel. The optical touch panel includes: an optical waveguide including a core delivering an optical signal and a clad surrounding the core; a light generator delivering the optical signal into the optical waveguide; and a light detector measuring the optical signal passing through the optical waveguide, wherein the optical waveguide includes a sensing part having a sensing surface and a passing part having a non-sensing surface; the core includes a sensing core portion in the sensing part and a passing core portion in the passing part; and a distance between the sensing surface and a top surface of the sensing core portion is shorter than that between the non-sensing surface and a top surface of the passing core portion. | 06-14-2012 |
20120146954 | OPTICAL TOUCH SCREEN PANEL - Disclosed is an optical touch screen panel including: a light source unit to generate light parallel with a horizontal axis or a vertical axis of a touch screen; a first beam deflector to increase the width of the light parallel with the horizontal axis to be matched with the width of the horizontal-axis of the touch screen, or increase the width of the parallel light parallel with the vertical axis to be matched with the width of the vertical-axis of the touch screen in order to reflect the parallel light having the increased width; a second beam deflector to reduce the width of the parallel light incident from the first beam deflector in order to reflect the parallel light having the reduced width; and a photodetector unit to sense a touched position of an object on the horizontal-axis or the vertical-axis of the touch screen. | 06-14-2012 |
Patent application number | Description | Published |
20120137350 | SECURITY SYSTEM AND METHOD USING AUTOMATIC METER READING PROTOCOL - The present invention relates to a security system using an automatic meter reading protocol. The security system includes a Device Language Message Specification (DLMS) transmission unit for transmitting security DLMS data that includes security key update information and a first authentication value, and a DLMS reception unit for receiving the security DLMS data, searching the security key update information in the security DLMS data, and generating an updated security key using a second authentication value according to the security key update information. The security system can solve various problems occurring due to the operation of a separate security protocol, and can be easily implemented and managed. | 05-31-2012 |
20140261503 | COATING COMPOSITION OF LOW IGNITION PROPENSITY CIGARETTE PAPER AND CIGARETTE USING THE SAME - The coating composition of a low ignition propensity cigarette paper according to an exemplary embodiment includes pregelatinized starch, maltodextrin, resistant maltodextrin and ethanol. | 09-18-2014 |
20150173415 | LOW IGNITION PROPENSITY CIGARETTE PAPER AND CIGARETTE USING THE SAME - A low ignition propensity cigarette paper includes a coating portion including a hydrophobic starch and a hydrophilic starch, and a plurality of pores including a micrometer-size pore and a nanometer-size pore, wherein the hydrophobic starch and the hydrophilic starch cover the micrometer-size pore and the nanometer-size pore. | 06-25-2015 |
20150257438 | LOW IGNITION PROPENSITY CIGARETTE PAPER AND CIGARETTE INCLUDING THE SAME - A low ignition propensity cigarette paper includes a first coating layer disposed in a combustion section combusted by smoking, and a second coating layer disposed in a cigarette butt section where smoking is finished, wherein a basis weight of the first coating layer is smaller than a basis weight of the second coating layer. | 09-17-2015 |
20150333548 | BATTERY PROTECTION MODULE PACKAGE - Disclosed is a battery protection module package (PMP). The battery PMP according to an embodiment of the present invention includes a lead frame provided with a plurality of external terminals thereon, a printed circuit board stacked on the lead frame, and a plurality of internal terminals, a protection integrated chip (IC), a field effect transistor (FET), resistors, and capacitors disposed on the printed circuit board and electrically connected to each other, wherein the resistors and the capacitors are mounted on a pattern of the printed circuit board using surface mount technology (SMT), and wherein the plurality of internal terminals are electrically connected to the plurality of external terminals. | 11-19-2015 |
Patent application number | Description | Published |
20110143177 | SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF - Provided is a secondary battery, comprising an electrode assembly including a first electrode plate, a second electrode plate and a separator; and a case having a receiving portion for receiving the electrode assembly and an electrolyte therein, the secondary battery comprising: a blowing agent applied onto at least one of a first tab and a second tab in a width direction of the tab, the first and second tabs being, respectively, connected to the first and second electrode plates and connected to leads which extend through the case. | 06-16-2011 |
20120114981 | NOVEL STRUCTURAL ELECTRIC DEVICE HAVING IMPROVED SAFETY - Provided is a novel structural electric device having improved safety. More particularly, provided is a novel structural electric device devised to resolve several issues regarding heat generation, ignition, and explosion, which may be caused by a sharp needle-shaped object penetrating an electric device. | 05-10-2012 |
20120114990 | SECONDARY BATTERY HAVING IMPROVED SAFETY - Provided are a secondary battery, a battery module, and a battery pack, which have improved safety. Particularly, since a bulletproof material is disposed on the inside and/or the outside of an exterior part, even when a conductive needle-shaped member penetrates a secondary battery, heating, burning, discharge of evaporated electrolyte, and electrical contact between the needle-shaped member and an electrode can be prevented, thereby improving safety of the secondary battery, the battery module, and the battery pack. | 05-10-2012 |
20130130083 | Electrode Assembly And Lithium Secondary Battery Including The Same - Provided is an electrode assembly, and more particularly, an electrode assembly having a structure wound in a state, in which a plurality of unit cells having a stacking structure is disposed on a long sheet type separation film, and including the unit cells having two or more types of configurations of electrode materials, wherein a separator stacked on the unit cell having a stacking structure has a coating material coated on both sides thereof and the long sheet type separation film has a coating material coated on one side thereof. According to the present invention, an electrode assembly improving processability of preparation of a battery while reducing initial resistance during the preparation of the battery as well as having battery lifetime equivalent to that of a conventional battery and a lithium secondary battery including the electrode assembly may be provided. | 05-23-2013 |