Patent application number | Description | Published |
20140211763 | METHOD AND APPARATUS FOR CONTROLLING AND SUPPORTING A DYNAMIC CELL ON/OFF IN WIRELESS ACCESS SYSTEM - The present invention relates to a wireless access system and provides methods and apparatuses for controlling and supporting dynamic cell on or off. In an embodiment of the present invention, a method for supporting on or off of a second cell at a first cell in a wireless access system includes receiving a cell on/off state indicator message indicating on or off of the second cell from the second cell, adjusting a handover offset of the second cell, taking into account interference caused by the on or off of the second cell, and transmitting handover offset information about the adjusted handover offset to at least one of the second cell and a first User Equipment (UE). | 07-31-2014 |
20140213239 | METHOD AND APPARATUS FOR CONTROLLING A SMALL CELL ON OR OFF PROCEDURE - The present application provides methods for controlling a small cell on or off procedure in a Small cell specific Gate Way (S-GW). One of the methods comprises steps of receiving a cell indication message from a Source Small Cell (SSC), the cell indication message includes a cell state change indication parameter indicating whether the SSC is to be on or off and a cell on/off timer parameter indicating a time duration for a cell on process or a cell off process; transmitting request message requesting to expand or shrink a cell coverage of a Target Small Cell (TSC) according to the cell state change indication parameter; and receiving a complete indication message indicating the cell on process or the cell off process is complete after the time duration indicated by the cell on/off timer parameter from the SSC. | 07-31-2014 |
20140235218 | METHOD AND APPARATUS FOR CONTROLLING A SMALL CELL ON OR OFF PROCEDURE FOR COVERAGE EXTENSION - The present invention relates to methods and apparatuses for supporting or controlling a small cell on or off procedure. The method may comprise steps of receiving, by the MSC from a Source Small Cell (SSC), a Cell Off Indication message including a Cell State Change Indication parameter indicating a cell status of the SSC; transmitting, by the MSC to the SSC, an Expand Indication message indicating an expanding of the MSC when the Cell State Change Indication parameter indicates a cell off status, the Expanding Indication message including a Time to Start Expand parameter indicating when the MSC starts an expanding of its coverage and an Expand Timer parameter indicating a time period during which the expanding is performed; and starting the expanding of its coverage at a time indicated by the Time to Start Expand parameter during the time period indicated by the Expand Timer. | 08-21-2014 |
20140301308 | METHOD AND APPARATUS FOR PERFORMING PLURAL NETWORK ATTACHMENT PROCEDURES TO SUPPORT PLURAL CONNECTIONS IN A WIRELESS ACCESS SYSTEM - A method and apparatus for performing a plurality of network attachment procedures to support a plurality of cells for a small cell-based User Equipment (UE) service are disclosed. | 10-09-2014 |
20140334465 | METHOD AND APPARATUS FOR PAGING BASED ON LOCATION INFORMATION OF A USER EQUIPMENT IN A CONVERGENCE NETWORK OF A PLURALITY OF COMMUNICATION SYSTEMS - A method and apparatus for paging based on location information of a user equipment connected to a first communication system in a convergence network of a plurality of communication systems. A method for paging based on location information of a user equipment connected to a first communication system in a convergence network of a plurality of communication systems includes receiving, from a interworking entity of the second communication system, the location information of the user equipment which is in an idle mode with the second communication system; transmitting, to a first cell of the second communication system, a paging request message, wherein the first cell is selected from among a plurality of cells in a tracking area of the second communication system based on the location information. | 11-13-2014 |
20140335859 | METHOD AND UE FOR NETWORK ATTACHMENT - A method and a user equipment (UE) for network attachment are disclosed. The method includes receiving first status information associated with one or more remote radio units (RRUs) for supporting the small cell from the one or more RRUs, receiving second status information associated with one or more macro cells from one or more macro eNBs for supporting the macro cell, selecting an RRU and macro eNB, which the UE wants to attach, among the one or RRUs based on the first status information and the second status information, and simultaneously transmitting an attach request message for requesting network attachment from the selected RRU and macro eNB to the selected RRU and macro eNB. | 11-13-2014 |
20140349667 | METHOD OF PERFORMING COMMUNICATION BY USER EQUIPMENT IN CLOUD RADIO ACCESS NETWORK ENVIRONMENT AND APPARATUS THEREFOR - The present invention relates to a method of configuring a user equipment-based communication area in a cloud radio access network environment and an apparatus therefor. As one embodiment of the present invention, a method of performing a communication, which is performed by a user equipment (UE) in a cloud radio access network environment includes the steps of generating an RRU list based on signal strength of downlink signals received from each of one or more RRUs (remote resource unit), setting a UE-based communication area in a manner of transmitting the RRU list to a BBU (base band unit) via a first RRU among the one or more RRUs and establishing an RRC connection with a second RRU within the UE-based communication area. | 11-27-2014 |
20150296496 | METHOD AND APPARATUS FOR REGISTERING ACCESS POINT THROUGH WIFI NETWORK BY USING INFORMATION OBTAINED FROM COMMON DEVICE IN CELLULAR-WIFI CONVERGENCE SYSTEM - The present invention relates to a method and apparatus for registering an access point through a WiFi network using information obtained from a common device in a cellular-WiFi convergence system. The present invention provides a method in which a sub-RAT system entity obtains main RAT system information through a common device and a WiFi network thereof in a communication system in which a cellular system and a WiFi system are converged, and notifies a managing device of information thereon through the WiFi network. | 10-15-2015 |
20150304023 | METHOD AND APPARATUS FOR ACQUIRING INFORMATION USING DEVICE IN IDLE STATE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of acquiring information on a primary radio access technology (RAT) system in a wireless communication system is provided. An entity of a secondary RAT system transmits a request for information on the primary RAT system to a multi-RAT device, and upon transmitting the request, starting a waiting timer which has a default value. If it is determined that the information on the primary RAT system cannot be acquired, by the multi-RAT device, until the waiting timer expires, the entity of the secondary RAT system reconfigures the waiting timer by a fixed value or a dynamic value. | 10-22-2015 |
20150311985 | METHOD AND APPARATUS FOR CANCELLING SELF-INTERFERENCE SIGNAL BETWEEN TRANSMISSION ANTENNA AND RECEPTION ANTENNA - An apparatus for cancelling a self-interference signal between a transmission antenna and a reception antenna is disclosed. The apparatus includes a first self-interference signal cancellation unit for cancelling a self-interference signal in consideration of a linear channel between the transmission antenna and the reception antenna, a second self-interference signal cancellation unit for cancelling a self-interference signal in consideration of nonlinear channel characteristic between the transmission antenna and the reception antenna or linear characteristic of a radio channel, and a controller for comparing a transmitted signal output from the transmission antenna and a received signal received by the reception antenna to provide a first coefficient to be applied to self-interference signal cancellation of a linear device in the first self-interference signal cancellation unit and a second coefficient to be applied to self-interference signal cancellation of a nonlinear device in the second self-interference signal cancellation unit. | 10-29-2015 |
20150334616 | METHOD OF USER EQUIPMENT SELECTING CELL IN WIRELESS COMMUNICATION SYSTEM AND USER EQUIPMENT USING THE METHOD - Provided are a cell selection method performed by UE in a wireless communication system and UE using the method. The method includes generating data use pattern information, the data use pattern information including an amount of data used for each moving speed of the UE, receiving data providing pattern information that informs an amount of data provided by the wireless communication system for each specific moving speed of the UE, determining an access type of the UE based on the data use pattern information and the data providing pattern information, selecting a type of a cell to be accessed according to the access type and selecting a cell from cells having the cell type. | 11-19-2015 |
20150334675 | METHOD AND APPARATUS FOR REGISTERING ACCESS POINT IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of registering an entity of a secondary radio access technology (RAT) system in a management device of a primary RAT system in a wireless communication system is provided. The primary RAT system may be a cellular system, and the management device of the primary RAT system may be one of eNodeB (eNB), mobility management entity (MME), or a new entity. The second RAT system may be a wireless local area network (WLAN) system, and the entity of the secondary RAT system may be an access point (AP). The AP registration method may be initiated by the AP, or a general device, e.g., a multi radio access technology (RAT) device supporting a plurality of RATs. | 11-19-2015 |
20150334766 | METHOD FOR REGISTERING AND UPDATING BASE STATION INFORMATION IN CONVERGED NETWORK SUPPORTING MULTIPLE COMMUNICATION SYSTEMS, AND DEVICE THEREFOR - This method whereby a mobility management entity (MME) in a first communication system updates base station information in a converged network supporting multiple communication systems comprises the steps of: receiving a first message including changed information from a base station in a second communication system if information from and related to the base station in the second communication system has changed or if information related to a base station in the first communication system has changed; and updating with the changed information on the basis of the first message. | 11-19-2015 |
20150341844 | METHOD AND APPARATUS FOR OBTAINING INFORMATION RELATED TO BEACON TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for obtaining information related to beacon transmission in a wireless communication system is provided. A node of a primary radio access technology (RAT) system obtains first information related to beacon transmission including information on a start point of a beacon interval of each entity of a secondary RAT system, and transmits second information related to the beacon transmission based on the obtained first information related to the beacon transmission to a general device through the primary RAT system. | 11-26-2015 |
20150341853 | METHOD AND APPARATUS FOR CONTROLLING BEACON TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for controlling beacon transmission in a wireless communication system. A cellular node may control beacon transmission of an access point (AP) in an infrastructure basic service set (BSS). The cellular node may adjust an beacon interval of a plurality of APs and a start point of the beacon interval of the plurality of APs so that beacon transmissions of the plurality of APs do not overlap each other. Or, a cellular node may control beacon transmission of a general device in an independent BSS. | 11-26-2015 |
20150341926 | METHOD FOR UPDATING BASE STATION INFORMATION IN CONVERGED NETWORK SUPPORTING MULTIPLE COMMUNICATION SYSTEMS, AND DEVICE THEREFOR - This method whereby abase station in a first communication system updates base station information in a converged network supporting multiple communication systems may comprise the steps of: receiving a first message including changed information from a base station in a second communication system if information from and related to the base station in the second communication system has changed or if information related to the base station in the first communication system has changed; and updating with the changed information on the basis of the first message. | 11-26-2015 |
20150350961 | METHOD AND APPARATUS FOR UPDATING INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for updating information on a cellular system in a wireless communication system is provided. An access point (AP) transmits a request for information on a cellular system and an update configuration for the information on the cellular system to a multi-radio access technology (RAT) device supporting a plurality of RATs, receives a first response to the request, which includes the information on the cellular system, from the multi-RAT device, and receives a second response, which is an update of the first response, according to the update configuration from the multi-RAT device. | 12-03-2015 |
20150358895 | METHOD AND APPARATUS FOR ACQUIRING INFORMATION ON ACCESS POINT IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for acquiring information on an access point (AP) in a wireless communication system is provided. An AP information management entity of a cellular system transmits a request for information on an AP, which is located within coverage of an eNodeB (eNB), to an AP server which is located outside of the cellular system, and receives a response, which includes a result code of the request, from the AP server. The AP information management entity is one of an eNB, mobility management entity (MME), or a new entity of the cellular system. | 12-10-2015 |
20150358909 | METHOD AND APPARATUS FOR SUPPORTING STATE MODE TRANSITION OR PERFORMING STATE MODE TRANSITION IN PLURAL COMMUNICATION SYSTEM CONVERGENCE NETWORKS - A method and apparatus for supporting or performing status mode transition in a convergence network of a plurality of communication systems are disclosed. A method for supporting status mode transition by an entity of a first communication system in a plurality of communication system convergence networks includes: if a triggering condition for triggering transition between an active mode and an idle mode is satisfied, transmitting a first message indicating status mode transition to an entity of a second communication system; receiving a second message including specific information indicating whether the status mode transition is successful from the entity of the second communication system, in response to the first message; and updating status information of the entity of the second communication system on the basis of the second message, wherein the first and second communication systems are heterogeneous communication systems for each other. | 12-10-2015 |
20150365878 | METHOD AND APPARATUS FOR ESTABLISHING WI-FI SESSION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for establishing a session in a wireless communication system is provided. An entity of a primary radio access technology (RAT) system receives measurement results on the primary RAT system and a secondary RAT system from a multi-RAT device, determines a routing rule and a routing type for bearers which are appropriate for simultaneous transmission through the primary RAT system and the secondary RAT system, based on quality of service (QoS) and the measurement results, and transmits a routing control request message to a packet data network (PDN) gateway (P-GW). The routing control request message includes identifiers (IDs) of the bearers which are appropriate for simultaneous transmission, the routing type for each bearer, and the routing rule for each bearer. | 12-17-2015 |
20150373617 | METHOD AND APPARATUS FOR ROUTING DATA IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for routing data in a wireless communication system is provided. In trusted non-3rd generation partnership project (3GPP) access, a wireless local area network (WLAN) access gateway receives parameters, which includes 3GPP core network load information and a core network routing rule, from an entity of a 3GPP system, and routes received UL data based on the received parameters through at least one of the 3GPP system and a non-3GPP system. In un-trusted non-3GPP access, an evolved packet data gateway (ePDG) receives parameters, which includes 3GPP core network load information and a core network routing rule, from an entity of a 3GPP system, and routes received UL data based on the received parameters through at least one of the 3GPP system and a non-3GPP system. | 12-24-2015 |
20150382264 | METHOD AND APPARATUS FOR ESTABLISHING CELLULAR SESSION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for establishing a session of a cellular system in a wireless communication system is provided. According to embodiments of the present invention, the establishment of the session of the cellular system may be triggered by a network when a session of a Wi-Fi system already exists. By using the session of the cellular system and the session of the Wi-Fi system, simultaneous transmission through the cellular system and the Wi-Fi system can be achieved. | 12-31-2015 |
20150382306 | METHOD AND APPARATUS FOR PERFORMING TRANSMIT (TX) POWER CONTROL IN CONVERGENCE NETWORK OF PLURAL COMMUNICATION SYSTEMS - A method and apparatus for performing transmit (Tx) power control in a convergence network of a plurality of communication systems. A method for performing transmit power control (TPC) in a plurality of communication system convergence networks includes receiving, by a first entity of a first communication system, a TPC information request message requesting information associated with transmit power control (TPC) from a second entity of a second communication system; upon receiving a request of the TPC information request message, transmitting a first TPC information reporting message, which includes a maximum transmit (Tx) power value of the first entity and an interference signal value caused by a neighbor entity of the first entity, to the second entity; receiving a TPC command message, which includes information of the maximum Tx power value of the first entity adjusted based on the maximum Tx power value of the first entity and the interference signal value, from the second entity; and adjusting the maximum Tx power value of the first entity based on the information regarding the adjusted maximum Tx power of the first entity. | 12-31-2015 |
20160007247 | METHOD FOR PERFORMING CHANNEL SWITCH IN NETWORK CONVERGING PLURALITY OF COMMUNICATION SYSTEMS AND APPARATUS FOR SAME - A method for performing a channel switch by user equipment of a first communication system in a network converging a plurality of communication systems, may comprise receiving, a channel switch command message including a switch time and a new channel number, from a base station of the first communication system; transmitting a channel switch response message indicating acceptance of a channel switch when the new channel number is supported by the user equipment, to the base station of the first communication system in a response to the channel switch command message; receiving a channel switch notification message, which notifies of a channel switch, from a base station of the second communication system; and receiving data from the base station of the second communication system via a channel corresponding to the new channel number based on the switch time and the new channel number according to the channel switch notification message. | 01-07-2016 |
20160007363 | RESOURCE ALLOCATION METHOD IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS USING THE SAME - Provided are a method of allocating a resource in a wireless communication system and an apparatus using the method. The method includes: measuring a variation of a data usage pattern or density of user equipments located in a region for providing a service; determining whether the variation is greater than or equal to a threshold; and determining a resource allocation type of the region for providing the service on the basis of the determination result. | 01-07-2016 |
20160037405 | METHOD FOR USER EQUIPMENT MANAGING CONNECTION WITH SMALL CELL IN HETEROGENEOUS CELL ENVIRONMENT - Disclosed are a macro cell base station and a method for managing a connection with a small cell by: receiving a first measurement report message of the small cell from user equipment and deciding an activation of the connection with the small cell based on same; transmitting to the small cell a message indicating the activation of a connection with the user equipment, when the small cell has a different cell ID from a cell ID of the macro cell; receiving from the small cell a message for indicating scheduling for the user equipment; and indicating to the user equipment the connection with the small cell. | 02-04-2016 |
20160044548 | METHOD FOR TRANSMITTING DOWNLINK SIGNAL OF USER EQUIPMENT HAVING DUAL CONNECTIVITY IN HETEROGENEOUS CELL ENVIRONMENT - Disclosed are a transmission method and a base station comprising: user equipment confirming a handover to be performed; transmitting to a macro cell a data forwarding request message for requesting forwarding of downlink data of a small cell to the user equipment, when the user equipment can establish an X2 or S1 interface with the macro cell to perform the handover; receiving from the macro cell a data forwarding response message for indicating establishment of a wireless bearer with the macro cell; and transmitting the downlink data to the macro cell through the established wireless bearer, based on the data forwarding response message. | 02-11-2016 |
20160044576 | METHOD FOR MANAGING INFORMATION ABOUT ON/OFF SMALL CELLS IN RADIO ACCESS SYSTEM AND APPARATUS FR SUPPORTING SAME - The present invention relates to a method for managing information of on/off small cells in a small cell-based network system and apparatuses for supporting the same. As an embodiment of the present invention, a method for managing information on on/off small cells in a radio access system supporting small cells comprises the steps of: receiving a first message including cell state change information of a first cell corresponding to a small cell, which is changed to an on state or an off state, by a second cell; and transmitting a second message including the cell state change information to a UE by the second cell. At this time, the cell state change information may contain identification information of the first cell, on/off time information indicating a time when change to an on state or an off state is made, and on/off timer information indicating a time interval in which the change to the on state or the off state is made. | 02-11-2016 |
20160066234 | METHOD AND APPARATUS FOR PERFORMING DATA TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing data transmission in a wireless communication system is provided. A wireless device acquires information including a threshold on an action, which is configured for a secondary radio access technologies (RAT) system, checks a condition to be triggered by the threshold and a measurement result of the secondary RAT system, performs a corresponding action according to the condition. The secondary RAT system is used for a User-Plane (U-plane) data, the threshold is changeable by at least one of a network preference including a primary RAT system or the secondary RAT system, a quality of service (QoS) information, and bearer information, the action includes whether an association/disassociation/data transition direction for the secondary RAT system is configured. | 03-03-2016 |
20160073392 | METHOD AND APPARATUS FOR ALLOCATING RESOURCES IN WIRELESS COMMUNICATION SYSTEM - Provided are an apparatus and a method for allocating resources in a wireless communication system. In particular, the present invention includes the feature of alternately allocating resources for D2D communication and resources for cellular communication, or allocating resources of a D2D link to not be adjacent to each other. In addition, the present invention prevents interference with the cellular communication and interference with other D2D links by allocating a partial area of the resources allocated for the D2D communication to an area for transmitting a D2D uplink symbol to an eNB, or by adding a GP symbol to a partial area of the resources for the D2D communication. Furthermore, in the case of applying a TDD scheme, the present invention prevents interference with symbols for performing the cellular communication by defining a partial section of a special subframe as a section for transmitting the D2D uplink symbol, or by reflecting a time delay of N OFDM symbol durations. Accordingly, the present invention prevents the D2D communication from causing interference. | 03-10-2016 |
20160105211 | METHOD AND APPARATUS FOR RECONSTRUCTING DESIRED SIGNAL IN CASE OF USING FULL DUPLEX RADIO (FDR) SCHEME - The apparatus for reconstructing a desired signal using a full duplex radio (FDR) scheme includes: a digital self-interference cancellation unit configured to output a first digital signal; a demodulator configured to demodulate the first digital signal; a modulator configured to modulate the demodulated first digital signal; an attenuator configured to attenuate the modulated first digital signal by applying an attenuation coefficient to the modulated first digital signal; and an operation unit configured to receive the attenuated first digital signal and the first digital signal, and transmit a residual signal to the digital self-interference cancellation unit, wherein the residual signal is obtained by subtracting the attenuated first digital signal from the first digital signal. | 04-14-2016 |
20160112977 | METHOD AND APPARATUS FOR PERFORMING TIMING SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM - The present invention provides an apparatus and a method for performing timing synchronization in a wireless communication system. Particularly, the present invention is characterized in that resources for D2D communication and resources for performing cellular communication are identified, and resource information for the D2D communication is determined considering the number of D2D terminals and a cell size of a base station, has different frequency and time domains according to D2D terminals, and includes different time offset values. Accordingly, the present invention prevents, in advance, the generation of interference according to the D2D communication. | 04-21-2016 |
Patent application number | Description | Published |
20080273187 | Lens structure, optical system having the same, and lithography method using the optical system - Disclosed are a lens structure, an optical system including the same, and a lithography method using the optical system. The disclosed lens structure includes: a lens that has a substantially semispherical shape and includes a protruding portion having a truncated cone shape that is provided on its aspherical surface; a thin metal film that is formed on the surface of the protruding portion, and has an aperture formed at a position corresponding to the center of an upper surface of the protruding portion; and an immersion layer that is formed with a constant thickness on the upper surface of the protruding portion. | 11-06-2008 |
20080297757 | Light-Modulating Nano/Micro Scale Aperture Array Device Having Immersion Layer and High Speed Nano Scale Pattern Recording System Using the Same - An optical modulating fine aperture array device is provided. The device includes a spatial light modulation unit provided with at least one light capacity cell arranged in a shape of a matrix, wherein each of the light capacity control cells is capable of individually controlling a degree of an inputted light which passing therethrough, a micro-lens array provided with at least one micro-lens arranged in a shape of a matrix, wherein each of the micro-lenses condenses the light passing through each of the light capacity control cells, a substrate made of an optical transparent material and having a thickness substantially to a focal length of the micro-lens, wherein the micro-lens array is attached to one side of the substrate, an aperture array arranged on other side surface of the substrate and provided with at least one fine aperture, wherein each of the fine apertures discharges light passing through the substrate by condensing the light by each of the micro-lenses and an immersion thin film layer made of an optically transparent dielectric, including and formed to have a predetermined thickness from the aperture array. | 12-04-2008 |
20100002230 | APPARATUS FOR MEASURING LIGHT PROCEEDING BACKWARD WITH PLASMONIC DEVICE - An apparatus for measuring light proceeding backward to which a plasmonic device is applied is disclosed. A disclosed optical apparatus according to the present invention includes: a plasmonic device including a thin metal film having apertures having a nano-sized diameter, disposed close to an object, and generating a near field in front of the apertures; a polarization modulation unit for adjusting the polarized state of light entering through the apertures of the plasmonic device, and making the light reflecting the strength of the near field proceed backward through the nano-apertures of the plasmonic device, and a measuring unit detecting properties of the object from the light proceeding backward from the polarization modulation unit. | 01-07-2010 |
20100098897 | HIGH DENSITY INFORMATION STORAGE MEDIUM HAVING PLASMONIC NANO DEVICE - A high density information storage medium includes a recording layer in which information is stored; a thin metal film placed on the recording layer and having a structure in which nano-apertures having a size of several nanometers to several hundred nanometers are defined at regular intervals; and a protective layer placed on the thin metal film. As light irradiated from above the protective layer passes through the nano-apertures, physical characteristics of the recording layer are changed, whereby information is stored. | 04-22-2010 |
20100200767 | OPTICAL APPARATUS FOR PLASMA - An optical apparatus for plasma includes a light collection lens provided to receive optical emission spectrum from plasma, a first aperture stop disposed between the light collection lens and the plasma to block out-focused light, a second aperture stop disposed between the light collection lens and an imaging area of the light collection lens to block in-focused light, and a pinhole disposed at the imaging area of the light collection lens to limit depth of focus. | 08-12-2010 |
20110192996 | CONTACT TYPE PLASMONIC NANO OPTICAL PROBE, PARALLEL PROBE CONSTITUTED OF THE SAME, PLASMONIC OPTICAL APPARATUS INCLUDING THE PARALLEL PROBE, AND A METHOD OF FABRICATING THE PARALLEL PROBE - A contact type plasmonic nano optical probe, a parallel probe constituted of the same, a plasmonic optical apparatus including the parallel probe, and a method of fabricating the parallel probe are disclosed. A contact type plasmonic nano optical probe includes a probe tip which protrudes in a truncated shape having a narrower plan surface and a wider plan surface relatively wider than the narrower plan surface, of which a metal thin film is coated on a surface, of and which an aperture of nm diameter included in a portion of the metal thin film on a central portion of the narrower plan surface, a spring structure disposed at a perimeter of the probe tip and configured to maintain a distance between the probe tip and a film to be exposed, a dielectric filled within the aperture, and a protection layer disposed on the narrower plan surface of the probe tip. Here, an optical transport path is included within the probe tip to be connected to the aperture. A plasmonic optical apparatus including a parallel plasmonic probe is constituted of a probe array including a plurality of probe modules in which the contact type plasmonic nano optical probes are disposed at a uniform distance on a substrate. | 08-11-2011 |
20120120395 | DEVICE FOR PREVENTING INTENSITY REDUCTION OF OPTICAL SIGNAL, OPTICAL EMISSION SPECTROMETER, OPTICAL INSTRUMENT, AND MASS SPECTROMETER INCLUDING THE SAME - A device for a device for preventing the intensity reduction of an optical signal, an optical emission spectrometer, an optical instrument, and a mass spectrometer including the same are provided. The device for preventing the intensity reduction includes a shielding filter which has a mesh structure capable of blocking RF electromagnetic waves radiated from a plasma field for a wafer processing, is installed in the front of an optical window of an optical emission spectrometer for measuring the plasma field from an emission spectrum image of the plasma field, and collects charging particles passing through the mesh. | 05-17-2012 |
20130340929 | METHOD OF MANUFACTURING STAMP FOR PLASMONIC NANOLITHOGRAPHY APPARATUS AND PLASMONIC NANOLITHOGRAPHY APPARATUS - There is provided a method of manufacturing a stamp for a plasmonic nanolithography apparatus. The method includes forming metal patterns on a substrate, coating a hydrophobic thin film on external surfaces of the metal patterns to hydrophobic processing the external surfaces of the metal patterns, selectively hydrophilic processing only the external surfaces of the metal patterns, laminating a buffer layer on the substrate and the metal patterns, and transcribing the metal patterns and the buffer layer from the substrate to a base formed of light transmission material to be combined with the base. | 12-26-2013 |
20150211924 | DEVICE FOR PREVENTING INTENSITY REDUCTION OF OPTICAL SIGNAL, OPTICAL EMISSION SPECTROMETER, OPTICAL INSTRUMENT, AND MASS SPECTROMETER INCLUDING THE SAME - A device for a device for preventing the intensity reduction of an optical signal, an optical emission spectrometer, an optical instrument, and a mass spectrometer including the same are provided. The device for preventing the intensity reduction includes a shielding filter which has a mesh structure capable of blocking RF electromagnetic waves radiated from a plasma field for a wafer processing, is installed in the front of an optical window of an optical emission spectrometer for measuring the plasma field from an emission spectrum image of the plasma field, and collects charging particles passing through the mesh. | 07-30-2015 |