摘要:
A plasma display apparatus comprises a plasma display panel that comprises an electrode; a sustain driver that supplies a sustain signal to the electrode and that comprises a first and second switching elements for supplying the sustain signal; and a first and second gate drivers that drives each of the first and second switching elements, wherein the first gate driver receives a driving voltage for driving the first switching element from a driving voltage source of the first gate driver, the second gate driver comprises a driving voltage source that supplies a driving voltage for driving the second switching element, and an auxiliary voltage for assisting the driving voltage is supplied from the outside of the second gate driver so that the second switching element is driven by the driving voltage.
摘要:
A rate matching method is provided for a mobile communication system that performs an adjustment to a code rate based on an optimal level by puncturing or repetition to respective bit streams of transport channels. The rate matching method is preferably applicable to uplink and downlink rate matching for channel coding including turbo coding, convolutional coding and the like. The rate matching method for uplink can include executing coding for bits of a transport channel, and branching off the bits into a plurality of sequences, constructing a first interleaving pattern for the plurality of sequences, constructing a virtual interleaving pattern for at least one sequence based on a mapping rule with a corresponding first interleaving pattern and calculating different bit shifting values in each column of each virtual interleaving pattern. Then, a bit position to be punctured is determined in each constructed virtual interleaving pattern using the calculated bit shifting values.
摘要:
Disclosed is a lance system for inter-tube inspecting and lancing as well as barrel spraying of heat transfer tubes of a steam generator in a nuclear power plant, so that foreign substances piled up around heat transfer tubes in the steam generator are removed using high-pressure water. The lance system includes a rigid guide support rail positioned above a Blow Down Lane (BDL) at the center of the steam generator, a locomotion box including a motor drive unit for inducing a rectilinear motion of a lance body and a motor drive unit for inducing a rotational motion of the lance body centering on a horizontal axis, the lance body including a circular barrel including a motor drive unit for vertically erecting or horizontally laying down a multistage circular pole assembly, and a flat plate provided with linear passages for passing high-pressure water hoses, an optical cable and control rods therethrough, a circular drum assembly for stably connecting the high-pressure water hoses, the optical cable and the control rods, and the multistage circular pole assembly being extensible and contractible by the movement of the control rods obtained by engaging teeth of a toothed belt unit, driven by a motor and positioned in the circular barrel, with gear teeth of the control rods, and two nozzle blocks, for barrel spraying, provided with barrel spray nozzles fixedly assembled therewith, symmetrically fixed to the inner surface of the circular barrel, wherein the multistage circular pole assembly is vertically erected in the operation of inter-tube lancing and inspecting, in which the lance system approaches inner parts of the heat transfer tubes and sprays the high-pressure water thereto, and is maintained in a horizontally laid-down position in the operation of barrel spraying.
摘要:
An underwater acoustic sensor system for detecting and efficiently displaying data from small, shallow-draft targets at high speeds in shallow or very shallow water. Sonar buoys transmit electrical signals representing sound pressure waves, which are processed to ascertain bearing and signature information for a detected object. A single display having a bearing history area, a frequency history area, and a bearing/frequency area, provide a system operator with efficient correlation between bearing and frequency data.
摘要:
Provided is a QoS providing method using a flow label in providing multimedia service in an IPv6 network and a system applying the same. According to the method, a signal connection server extracts session information from a communication request response signal transmitted from a destination in response to a communication request signal of a source, and transmits the extracted session information to a QoS provisioning server. The QoS provisioning server receives the session information, and generates a session key including flow label, and sets QOS information corresponding to the session key. The QoS provisioning server transmits the session key and the QoS information to an IPv6 node, and transmits QoS provisioning completion information to the signal connection server. When the signal connection server receives the QoS provisioning completion information, the signal connection server transmits the received communication request response signal to the source. The IPv6 node forwards an introduced packet on the basis of the transmitted session key and the QoS information.
摘要:
A horizontal electric field switching liquid crystal display device includes a gate line, a common line parallel to the gate line and provided at an area adjacent to the gate line, a data line crossing the gate line with a gate insulating film therebetween to define a pixel area, a thin film transistor provided adjacent to a crossing of the gate line and the data line, a common electrode provided in the pixel area and connected to the common line, a pixel electrode connected to the thin film transistor and provided in such a manner to form a horizontal electric field along with the common electrode in the pixel area on the same plane as the common electrode, a storage capacitor electrode overlapping the common electrode to provide a storage capacitor, and a contact electrode contacting the pixel electrode, the thin film transistor and the storage electrode at their side surfaces.
摘要:
A positive temperature coefficient (PTC) rod assembly having PTC elements including a channel-shaped, lower PTC rod, a contact plate with through-holes, and an insulator with protrusions penetrating through the through-holes. The insulator is coupled to and wraps a portion of the contact plate, and includes first and second seating sections exposing portions of side surfaces of the contact plate. PTC elements are in the first seating sections and in contact with the contact plate, heat transfer blocks are in the second seating sections in contact with the contact plate, and an upper PTC rod is coupled to the lower PTC rod to cover an open portion of the lower PTC rod. A vehicle pre-heater includes a plurality of such PTC rod assemblies in parallel to one another, with heat radiation fin assemblies coupled in close contact with both surfaces of each of the PTC rod assemblies, a pair of frames coupled to outer side surfaces of the outermost heat radiation fin assemblies, and first and second housings coupled to both longitudinal ends of a combination of the PTC rod assemblies, the heat radiation fin assemblies and the frames. Housing terminals are provided in the housings and serve as cathode terminals.
摘要:
A universal method of analyzing a string comprises an intermediate language conversion step of converting a first data file coded in a programming language into a second data file coded in a specific intermediate language; and an analysis processing step of extracting flow information related to execution sequence from strings contained in the second data file, performing a static analysis according to the flow information, and storing variable information at a certain or each point as analysis result data.
摘要:
Disclosed is a system for distributing drawings that illustrate animation. This system includes a global computer communication network, and a web site connected to this network that is adapted to display on a monitor screen a unique ordering display. The display enables a buyer (a) to select at least one subject from a plurality of different subjects for the drawings, (b) to select a time interval at which individual drawings are delivered to the buyer, (c) to select a payment method, and (d) to provide a mailing address to which the drawings are sent.
摘要:
Provided is a carrier recovery apparatus in a vestigial sideband modulation (VSB) type digital television (DTV) receiver. The carrier recovery apparatus dynamically controls a sign determination level which is a reference for determining a sign of an I signal in a sign extractor. Therefore, the carrier recover apparatus can eliminate unnecessary sign extraction caused by zero-crossing which is generated when the receiver receives a pilot signal weaken by a channel ghost, and improves the frequency lock performance in the receiver. Specially, the carrier recover apparatus. can effectively improve the frequency lock performance when comparatively large pattern jitter is existed in a low pass signal caused by a ghost signal produces a long delay time.