摘要:
Provided are a transcoding apparatus and method. A frame comparator compares the length of input frames of a transmitting side with the length of output frames of a receiving side. A frame deciding unit decides more than one input frame corresponding to one output frame on the basis of the comparison result and decides the type of the output frame based on the type of the corresponding input frame. A frame converter converts the format of the input frames to the format of the output frames on the basis of the decided type. Accordingly, a frame coded by a voice coder using VAD is easily transformed to the format of another voice coder.
摘要:
Provided are an apparatus and method for converting a pitch delay using linear prediction in speech transcoding. A linear interpolating portion linearly interpolates a closed-loop pitch delay decoded by a selected mode vocoder (SMV) speech decoder to make the closed-loop pitch delay fit in a search section for open-loop pitch delays of G.723.1 speech encoder, to obtain a changed closed-loop pitch delay of the SMV decoder. A predicted value calculating portion calculates a predicted pitch delay using linear prediction, based on past closed-loop pitch delays of the G.723.1 speech encoder. A difference calculating portion calculates a difference between the changed closed-loop pitch delay of the SMV speech decoder and the calculated predicted pitch delay. When the calculated difference is less than the predetermined threshold value, a pitch delay determining portion determines the changed closed-loop pitch delay of the SMV speech decoder to be an open-loop pitch delay of the G.723.1 speech encoder. A pitch delay detecting portion detects a closed-loop pitch delay of the G.723.1 speech encoder using a conventional method, based on the determined open-loop pitch delay of the G.723.1 speech encoder.
摘要:
A transcoder for use between speech codecs using different Code-Excited Linear Prediction (CELP) type and a method therefor are disclosed. The transcoder includes a decoding unit of an input CELP codec, a transcoding filter, a transcoding filter design unit, and an encoding unit of an output CELP codec. By substituting a post-filter and a perceptual weighting filter of a prior art with one transcoding filter, the calculation amount of the transcoder is reduced, and speech quality decoded at a receiving end is improved.
摘要:
A method and system are provided for updating software on a handheld computer in communication with a client computer system operable to connect to a network. Software installed on the handheld computer is identified with the client computer. Moreover, information on the identified software is transmitted from the client computer to a server connected to the network. Further, updated versions of the software installed on the handheld computer are transferred from the server to the client computer based on the identified software that is installed on the handheld computer. Still yet, the software installed on the handheld computer is updated with the updated versions transferred to the client computer.
摘要:
An optical payment transceiver and an optical settlement system using the same uses a personal portable terminal incorporated with an optical transceiver as a card substitute payment unit for settlement. Here, card information is incorporated in a personal portable terminal incorporated with an optical transceiver such as a portable phone or a PDA and the optical transceiver is connected to a card inquiry machine to thereby optically transmit and receive card information. The card inquiry machine recognizes the received card information in the same manner as that of the card reader reading a magnetic card, and transmits the card information to a VAN company server or a card company server, to then request for an approval and settle transactions. The present invention is applied to most fields where financial transactions are performed as in a general commerce, a toll gate fee or tunnel passage fee collection system, a subway or bus fare levying system, a gas station, a department store, a drive-thru ordering system, a vending machine, and a fee payment system of kiosks. Also, the present invention can be applied to an entrance/exit security system requiring personal identification. Thus, the present invention can use a portable terminal as a payment unit without carrying a cash or cards, to thereby provide an effect of performing a safer and more reliable credit transaction.
摘要:
Disclosed is a polyester conjugated yarn, including two types of polymers having a large intrinsic viscosity difference subjected to bi-component spinning so as to be longitudinally arranged in a side-by-side sectional structure, in which the twp types of polymers are polyethyleneterephthalate having intrinsic viscosity of 0.45-0.65 as a first polymer and polytrimethyleneterephthalate having intrinsic viscosity of 0.90-1.10 as a second polymer. The polyester conjugated yarn is advantageous in terms of superior spinnability and high uniformity index. In addition, the polyester conjugated yarn can exhibit high self-crimping properties through relaxation-heat treatment of the dyeing and finishing process, and as well, can be applied to manufacture woven/knit fabrics having softness to the touch, beautiful colors, and high drapery and bulk properties, due to inherent characteristics of polytrimentyleneterephthalate.
摘要:
Provided is a portable Internet terminal apparatus for wireless broadband Internet, including: a processor core unit controlling a wireless Internet connection or a wired Internet connection if the wireless connection to the Internet is difficult or impossible; a user input and output unit controlling connections to peripheral devices comprising a display, a key pad, and a transmitter and/or receiver to provide an input and output user interface for a user who uses the Internet provided under the control of the processor core unit; and a network access unit providing an Internet connection function under the control of the processor core unit.
摘要:
A liquid crystal display device includes a plurality of pixel electrodes to which a data voltage is supplied, a plurality of common electrodes arranged to form electric fields with the pixel electrodes, a plurality of common wire lines commonly connected to the common electrodes in each horizontal line, a plurality of common voltage drive circuits to supply a common voltage to each of the corresponding common wire lines, and a controller for generating clock signals to control the common voltage drive circuits to invert an electric potential of the common voltage to be output from each of the common voltage drive circuits for each frame period.
摘要:
An organic electroluminescent device, adapted to enhance device reliability while allowing simplification of a manufacturing process, and a method for manufacturing the same are disclosed. The organic electroluminescent (EL) device, comprising a substrate, TFTs located in respective unit pixel regions on the substrate, a first insulation layer to insulate the TFTs, first electrodes formed on the first insulation layer while contacting the TFTs, respectively, a partition wall positioned between the unit pixel regions on the first insulation layer, a subsidiary electrode formed on the partition wall, an organic light emitting layer positioned on the first electrodes, an insulation part to insulate each first electrode from an associated subsidiary electrode, and a second electrode positioned on the organic light emitting layer and connected with the subsidiary electrode.
摘要:
A vapor deposition source has a reduced size by disposing a crucible, a heating portion, and a nozzle portion in one defined space. A vapor deposition apparatus deposits deposition materials on a substrate using the vapor deposition source. The vapor deposition source includes a housing, and the crucible is mounted in the housing for vaporizing the deposition materials. The heating portion is installed adjacent to the crucible in the housing for heating the crucible. The nozzle portion injects the vaporized deposition materials into a substrate disposed at an exterior of the housing through an injection nozzle. The vapor deposition source is manufactured in a smaller and lightweight form in comparison with conventional vapor deposition sources in which a crucible and a nozzle portion are arranged in different spaces. The diameter and number of injection nozzles of the invention are restricted to block radiant heat discharged from the vapor deposition source, so that deposition materials are uniformly deposited. Furthermore, the output power of a conveyer for conveying the vapor deposition source is reduced. In addition, a plurality of vapor deposition sources is arranged in a line to perform concentrated deposition of deposition materials so that quality of the resultant product is improved.