Abstract: Provided is a joint pattern beam sectorization method and apparatuses for performing the same, wherein the joint pattern beam sectorization method including generating, in a service target region, a pattern sector corresponding to an antenna array including antennas having an identical radiation pattern by using the antenna array and generating pattern beam sectors in the pattern sector through a beamforming using the antennas.

Abstract: A method and apparatus for measuring a use of radio resources in a wireless communication system are provided. The method includes allocating radio resources to a plurality of transport blocks, and, if at least one transport block among the plurality of transport blocks overlaps at least one other transport block in terms of the radio resources, a use of the radio resources is measured by calculating a sum of a value determined by dividing the number of radio resources allocated to each of the plurality of transport blocks by the number of radio resources which are used by the at least one other transport block in a duplicate manner.

Abstract: A method and apparatus for controlling Discontinuous Reception (DRX) by a User Equipment (UE) in a wireless communication system is provided. The UE receives a DRX configuration parameter from an evolved Node B (eNB), and determines whether to start an on-duration timer based on the DRX configuration parameter, after a change in DRX cycle is completed in a subframe, thereby preventing system performance degradation caused by transmission mismatch between the eNB and the UE.

Abstract: A method and apparatus for controlling Discontinuous Reception (DRX) by a User Equipment (UE) in a wireless communication system is provided. The UE receives a DRX configuration parameter from an evolved Node B (eNB), and determines whether to start an on-duration timer based on the DRX configuration parameter, after a change in DRX cycle is completed in a subframe, thereby preventing system performance degradation caused by transmission mismatch between the eNB and the UE.

Abstract: An optical image stabilizer, in which a magnet and a coil are arranges such that they oppose each other. The Hall sensor is arranged such that one face thereof is opposed to one face of the magnet. The Hall sensor can easily detect the location of a group of lenses by generating a corresponding signal in response to a variation in magnetic force following a variation in the gap between magnets depending on the direction in which a group of lenses is driven, and simultaneously, in response to a variation in magnetic force that occurs when the group of lenses is displaced in the direction that intersects the direction of the gap.

Abstract: An apparatus and method for Discontinuous Reception (DRX) operation of a Mobile Station (MS) in a Voice over Internet Protocol (VoIP) based wireless communication system are provided. The method for allocating semi-permanent resources considering the DRX operation of the MS includes determining if DRX of an MS for allocating semi-permanent resources has been activated, transmitting semi-permanent resource allocation instruction information to the MS if the DRX of the MS has been activated, determining a slot to allocate semi-permanent resources to the MS, transmitting semi-permanent resource allocation information to the MS if the slot to allocate the semi-permanent resources to the MS is determined, and allocating the semi-permanent resources to the MS every semi-permanent resource allocation cycle.

Abstract: A method and apparatus for controlling Discontinuous Reception (DRX) by a User Equipment (UE) in a wireless communication system is provided. The UE receives a DRX configuration parameter from an evolved Node B (eNB), and determines whether to start an on-duration timer based on the DRX configuration parameter, after a change in DRX cycle is completed in a subframe, thereby preventing system performance degradation caused by transmission mismatch between the eNB and the UE.

Abstract: A method and apparatus for measuring a use of radio resources in a wireless communication system are provided. The method includes allocating radio resources to a plurality of transport blocks, and, if at least one transport block among the plurality of transport blocks overlaps at least one other transport block in terms of the radio resources, a use of the radio resources is measured by calculating a sum of a value determined by dividing the number of radio resources allocated to each of the plurality of transport blocks by the number of radio resources which are used by the at least one other transport block in a duplicate manner.

Abstract: The present invention discloses a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same. In a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same, it is possible to improve performance of the wavelength division multiplexed-passive optical network by automatically controlling a lasing wavelength of a tunable laser to be matched with a transmission wavelength of a wavelength division multiplexer/de-multiplexer using optical power or optical beating components obtained by a reflected optical component which is Raleigh backscattered or reflected, and is generated on an optical fiber.

Abstract: A method and apparatus for controlling Discontinuous Reception (DRX) by a User Equipment (UE) in a wireless communication system is provided. The UE receives a DRX configuration parameter from an evolved Node B (eNB), and determines whether to start an on-duration timer based on the DRX configuration parameter, after a change in DRX cycle is completed in a subframe, thereby preventing system performance degradation caused by transmission mismatch between the eNB and the UE.

Abstract: The vision testing device with an enhanced image clarity for determining good or bad of a testing object by photographing a testing object assembled or mounted during the component assembly process and comparing the photographed image with a previously inputted target image, comprising: a stage part for fixing or transferring the testing object to a testing location; a lighting part for providing lighting to the testing object located on an upper portion of the stage part; a first camera part for obtaining a 2-dimensional image of the testing object located in a center of the lighting part; a plurality of second camera parts placed on a side section of the first camera part; a plurality of grid pattern irradiating parts placed between cameras of the second camera parts; a vision processing unit for reading the image photographed by the first camera part and the second camera parts and determining good or bad of the testing object; a control unit for controlling the stage part, the grid pattern irradiating par

Abstract: A method and apparatus for controlling Discontinuous Reception (DRX) by a User Equipment (UE) in a wireless communication system is provided. The UE receives a DRX configuration parameter from an evolved Node B (eNB), and determines whether to start an on-duration timer based on the DRX configuration parameter, after a change in DRX cycle is completed in a subframe, thereby preventing system performance degradation caused by transmission mismatch between the eNB and the UE.

Abstract: Provided is a vision testing device using a multigrid pattern for determining good or bad of a testing object by photographing the testing object assembled or mounted during the component assembly process and comparing the photographed image with a previously inputted target image, comprising: a stage part for fixing or transferring the testing object to the testing location; a lighting part for providing lighting to the testing object located on an upper portion of the stage part; a center camera part for obtaining a 2-dimensional image of the testing object located in a center of the lighting part; a irradiating part placed on a side section of the center camera part; a vision processing unit for reading the image photographed by the center camera part and determining good or bad of the testing object; and a control unit for controlling the stage part, the grid pattern irradiating part, the center camera part, wherein the grid pattern irradiating part irradiates grid patterns having periods of different int

Abstract: The present invention discloses a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same. In a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same, it is possible to improve performance of the wavelength division multiplexed-passive optical network by automatically controlling a lasing wavelength of a tunable laser to be matched with a transmission wavelength of a wavelength division multiplexer/de-multiplexer using optical power or optical beating components obtained by a reflected optical component which is Raleigh backscattered or reflected, and is generated on an optical fiber.

Abstract: The present invention discloses a transmission device of a low-noise optical signal having a low-noise multi-wavelength light source, a transmission device of broadcast signals using a low-noise multi-wavelength light source, and an optical access network having the same. The present invention uses a low-noise multi-wavelength light source (LMLS) which has sufficiently low noises at respective wavelengths, while being lasing at a multi-wavelength. Noises at respective wavelengths are not increased, even though an output light of such an LMLS passes through a wavelength division multiplexer/demultiplexer (a tunable optical filter or an arrayed waveguide grating (AWG), etc.). When using an LMLS, it is possible to embody an optical access network capable of transmitting optical signals at a high-speed and simultaneously transmitting a multicast signal. Further, when embodying an optical amplifier by using a gain medium for an LMLS, it is possible to obtain gain at a broad band without cross-coupling.

Abstract: An apparatus and method for allocations segments in a broadband wireless communication system is provided. Sector pairs are generated with respect to all sectors existing in different cells and the generated sector pairs are sorted according to priority based on a proximity. A sector pair having a top priority among unselected sector pairs is selected. Segments are allocated to all sectors of a cell including each sector of the selected sector pair. Accordingly, segments can be allocated to sectors while minimizing downlink throughput deterioration caused by segment duplication.

Abstract: The present invention relates to a display apparatus, which comprises: a display panel; a front filter which is arranged on the front side of a display module, wherein the display panel and the front filter are spaced from each other at an interval of 3 mm or less.

Abstract: The present invention discloses a fault localization method and a fault localization apparatus in a Passive Optical Network (PON) and a passive optical network having the same. A fault localization method in PON according to the present invention comprises a) configuring an optical path of a remote node (RN) selectively by electric power being fed temporarily only when necessary, while the PON is regularly being operated as a passive network; and b) detecting a fault occurring on the selectively configured optical path by inserting a monitoring signal of an OTDR unit, which is positioned in a central office (CO), through the selectively configured optical path.

Abstract: An apparatus and a method for reallocating segments in a broadband wireless communication system are provided. An average density for all cells in system and an average minimal inter-cell distance R are computed. A circle is determined having a radius kR and a center at a corresponding cell by increasing a constant k until a density of the circle becomes less than or equal to the average density. A cluster is generated for each cell, which is composed of cells included in the determined circle. Accordingly, segment allocation capability can be improved while minimizing a width of segment reallocation.

Abstract: An apparatus and method for Discontinuous Reception (DRX) operation of a Mobile Station (MS) in a Voice over Internet Protocol (VoIP) based wireless communication system are provided. The method for allocating semi-permanent resources considering the DRX operation of the MS includes determining if DRX of an MS for allocating semi-permanent resources has been activated, transmitting semi-permanent resource allocation instruction information to the MS if the DRX of the MS has been activated, determining a slot to allocate semi-permanent resources to the MS, transmitting semi-permanent resource allocation information to the MS if the slot to allocate the semi-permanent resources to the MS is determined, and allocating the semi-permanent resources to the MS every semi-permanent resource allocation cycle.