Abstract: The present invention relates to an electrode rolling roll cleaning apparatus for removing pollutants on an electrode rolling roll, the apparatus comprising: a cleaning part for cleaning a rolling roll by bringing the rolling roll into contact with a cleaning member; an air spraying part for spraying air onto the rolling roll; a heating part for applying heat to the rolling roll so as to dry the rolling roll; and a scraper part for mechanically removing a cleaning liquid and foreign substances attached to the rolling roll.

Abstract: A method for generating data sets of a UAV, performed by a data set generation apparatus, may comprise obtaining flight environment information including a moving object; obtaining flight data including first physical information and first sensor information of the UAV in a flight environment based on the flight environment information; obtaining second physical information and second sensor information of the UAV when the moving object exists, based on the flight data, and generating a first data set based on the second physical information and the second sensor information; obtaining third physical information and third sensor information of the UAV when the moving object does not exist, based on the flight data, and generating a second data set based on the third physical information and the third sensor information; and combining the first data set and the second data set to generate a third data set.

Abstract: The apparatus for processing an image recorded in a black box for a vehicle includes an information collector, a mode determiner, an encoder and a controller. The information collector is configured to collect information on a road on which a vehicle is being driven. The mode determiner is configured to determine an inter mode when the road information collected by the information collector indicates a suburban road and determine an intra mode when the road information indicates a city road. The encoder is configured to encode the image recorded in the black box. The controller is configured to control the encoder to encode the image with an encoding mode determined by the mode determiner.

Abstract: The apparatus for processing an image recorded in a black box for a vehicle includes an information collector, a mode determiner, an encoder and a controller. The information collector is configured to collect information on a road on which a vehicle is being driven. The mode determiner is configured to determine an inter mode when the road information collected by the information collector indicates a suburban road and determine an intra mode when the road information indicates a city road. The encoder is configured to encode the image recorded in the black box. The controller is configured to control the encoder to encode the image with an encoding mode determined by the mode determiner.

Abstract: There are provided a spindle motor and a hard disk drive including the same. The spindle motor includes: a sleeve supporting a shaft and forming a bearing clearance between the sleeve and the shaft; a housing provided on an outer peripheral surface of the sleeve and forming a circulation hole between the housing and the sleeve; and a rotor hub attached to an upper end portion of the shaft and including an extension wall part extended downwardly and forming a liquid-vapor interface between the extension wall part and the housing, wherein a connection part is formed between the sleeve and the housing and the circulation hole to communicate with each other, and the extension wall part includes a protrusion part protruding in an inner diameter direction corresponding to a direction toward the connection part at a portion of the connection part in communication with the sealing part.

Abstract: There is provided a spindle motor including: a sleeve fixedly installed on the base member and having a circulation hole formed therein; a shaft rotatably inserted into a shaft hole of the sleeve; a rotor hub fixedly installed on an upper end portion of the shaft; and a thrust member installed in an installation groove of the sleeve and forming a connection part while being installed in the installation groove, the connection part being connected to the circulation hole, wherein the connection part is formed by the sleeve and the rotor hub and connects a sealing part in which a liquid-vapor interface is disposed and the circulation hole to each other, and an upper and lower radial dynamic grooves allowing a lubricating fluid to move from a lower end portion of the shaft toward the upper end portion thereof during rotation of the shaft.

Abstract: There is provided a spindle motor including: a sleeve fixedly installed on the base member and having a circulation hole formed therein; a shaft rotatably inserted into a shaft hole of the sleeve; a rotor hub fixedly installed on an upper end portion of the shaft; and a thrust member installed in an installation groove of the sleeve and forming a connection part while being installed in the installation groove, the connection part being connected to the circulation hole, wherein the connection part is formed by the sleeve and the rotor hub and connects a sealing part in which a liquid-vapor interface is disposed and the circulation hole to each other, and an upper and lower radial dynamic grooves allowing a lubricating fluid to move from a lower end portion of the shaft toward the upper end portion thereof during rotation of the shaft.

Abstract: There is provided a spindle motor, including: a sleeve fixed to a base member; a shaft rotatably inserted into the sleeve; and a rotor hub fixed to a top end portion of the shaft to be rotated together therewith and provided with an extension wall to form a liquid-vapor interface together with an outer circumferential surface of the sleeve, wherein the extension wall is provided with a protrusion portion protruded in an inner radial direction so as to reduce leakage of a lubricating fluid.

Abstract: A transceiver includes a transmitter circuit, a receiver circuit, and the loopback switch. The transmitter circuit performs a digital-to-analog conversion (DAC) operation on a calibration code without a transmission digital signal in a calibration mode to generate a calibration signal. The transmitter circuit up-converts the calibration signal and generates a transmission signal. The receiver circuit down-converts the transmission signal in the calibration mode and generates a receiving digital signal. The loopback switch electrically connects an output terminal of the transmitter circuit and an input terminal of the receiver circuit in the calibration mode. Thus, the transceiver may stably reduce a carrier leakage irrespective of processes, voltages, and temperatures.

Abstract: A spindle motor includes a sleeve fixed to a base member, a shaft rotatably inserted into a shaft hole of the sleeve, and a rotor hub fixed to an upper end of the shaft. A protrusion having a corresponding inclined surface that defines a bearing clearance together with an outer circumferential surface of the sleeve is disposed on an inner diameter part of the rotor hub.

Abstract: A spindle motor includes a sleeve fixed to a base member, the sleeve having a circulation hole, a shaft rotatably inserted into a shaft hole of the sleeve, a rotor hub fixed to an upper end of the shaft, and a thrust member disposed in an installation groove of the sleeve, the thrust member defining a connection part connected to the circulation hole when the thrust member is disposed in the installation groove. The connection part connects a sealing part in which a gas-liquid interface defined by the sleeve and the rotor hub is disposed in the circulation hole.

Abstract: Disclosed are a method and an apparatus for production of bio-gas, capable of improving quality of a raw material to be fed thereto. Among the raw material, a part free from inhibitory materials is directly introduced an anaerobic digestion reactor while the other part containing the inhibitory materials is introduced into a first solid-liquid separator and separated into a solid-phase material free from the inhibitory materials and a liquid-phase material containing the inhibitory materials. The solid-phase material in the first solid-liquid separator is fed to the anaerobic digestion reactor after hydrolysis. A liquid waste in the anaerobic digestion reactor and a liquid-phase material in the first solid-liquid separator are concentrated by a sludge concentrator.

Abstract: A transceiver includes a transmitter circuit, a receiver circuit, and the loopback switch. The transmitter circuit performs a digital-to-analog conversion (DAC) operation on a calibration code without a transmission digital signal in a calibration mode to generate a calibration signal. The transmitter circuit up-converts the calibration signal and generates a transmission signal. The receiver circuit down-converts the transmission signal in the calibration mode and generates a receiving digital signal. The loopback switch electrically connects an output terminal of the transmitter circuit and an input terminal of the receiver circuit in the calibration mode. Thus, the transceiver may stably reduce a carrier leakage irrespective of processes, voltages, and temperatures.

Abstract: Disclosed are a method and an apparatus for production of bio-gas, capable of improving quality of a raw material to be fed thereto. Among the raw material, a part free from inhibitory materials is directly introduced an anaerobic digestion reactor while the other part containing the inhibitory materials is introduced into a first solid-liquid separator and separated into a solid-phase material free from the inhibitory materials and a liquid-phase material containing the inhibitory materials. The solid-phase material in the first solid-liquid separator is fed to the anaerobic digestion reactor after hydrolysis. A liquid waste in the anaerobic digestion reactor and a liquid-phase material in the first solid-liquid separator are concentrated by a sludge concentrator.

Abstract: Provided is a mixer including a mixing unit configured to mix high frequency data signals and local oscillation (LO) signals, generate first and second low frequency data signals, and output the first and second low frequency data signals to first and second output terminals, respectively; a common mode amplification unit coupled to the mixing unit, the common mode amplification unit configured to compare a common mode voltage of the first and second low frequency data signals and a predetermined reference voltage, the common mode amplification unit further configured to output a feedback signal at a control node based on the comparison; a first load transistor coupled to the first output terminal and the control node, the first load transistor configured to provide the first output terminal with a first load current corresponding to the feedback signal; a first calibration transistor unit connected in parallel to the first load transistor in order to calibrate an input impedance of the first output terminal;

Abstract: Disclosed herein is a terminal for a vibration motor. The terminal includes a mounting part secured to a first side of a motor body having at a second side thereof a rotating shaft. A first extension part is bent from the lower end of the mounting part in such a way as to extend towards the rotating shaft. A bent part is connected at a front end thereof to a front end of the first extension part, is bent along a side edge in such a way that the bent part overlaps the first extension part, and extends towards the first side of the motor body. A second extension part is bent from the rear end of the bent part in such a way as to extend downwards. A curved part is curved upwards from the rear end of the second extension part.

Abstract: A semiconductor package. The semiconductor package of the invention comprises: a substrate comprising at least one exposed area with photosensitive devices; a cover for isolating the exposed area from the external atmosphere, wherein one of either the substrate or the cover is a base, and the other is a top structure; and a dam formed on the base to form a cavity, wherein the top of the dam has a recess, the dam is attached the top structure by an adhesive, and the cavity corresponds to the exposed area.

Abstract: A method and apparatus for detailed accounting of packet data are disclosed. According to one embodiment of the present invention, on receiving a duplicated HTTP request from a packet duplication apparatus, a billing apparatus extracts an access address to generate a first hash value. Then, on receiving a converted HTTP response from the packet duplication apparatus, the billing apparatus extracts a second hash value from the duplicated HTTP response to compare with the first hash value. If the first hash value and the second hash value are the same, the billing apparatus sets the HTTP REQUEST and the converted HTTP response as a transaction to generate billing data. Thus, the billing apparatus can generate accurate billing data.

Abstract: A method and apparatus for detailed accounting of packet data are disclosed. According to one embodiment of the present invention, on receiving a duplicated HTTP request from a packet duplication apparatus, a billing apparatus extracts an access address to generate a first hash value. Then, on receiving a converted HTTP response from the packet duplication apparatus, the billing apparatus extracts a second hash value from the duplicated HTTP response to compare with the first hash value. If the first hash value and the second hash value are the same, the billing apparatus sets the HTTP REQUEST and the converted HTTP response as a transaction to generate billing data. Thus, the billing apparatus can generate accurate billing data.

Abstract: The vibration motor 100 of the present invention comprises a housing 110, a rotating shaft 140 being rotatably installed in the housing 110 and having a recess 141 formed on an outer periphery thereof, a commutator 190 being fixedly combined with the shaft 140, and a blocking body 180 with a small thickness being forcibly inserted into the recess 141 and fixedly combined with the commutator 190, wherein the commutator 190 and the blocking body 180 are fixedly combined with each other by an predetermined adhesive.