Abstract: A method for setting a main language in a mobile terminal, and a mobile terminal configured to implement the same, are provided, where at least one name of language available in the mobile terminal is displayed when a power key is pressed, and a language corresponding to a language name displayed is set as the main language when a setting key is pressed.

Abstract: The present invention relates to novel aminopeptidase derived from Bacillus licheniformis, a gene encoding the aminopeptidase, an expression vector containing the gene, a cell transformant transfected with the expression vector and a process for preparing a natural type protein using thereof. More particularly, the present invention relates to a gene encoding aminopeptidase which is cloned and manufactured using the recombinant DNA technique, an expression vector containing the gene, a cell transformant transfected with the expression vector and a recombinant aminopeptidase which is necessary to produce recombinant human growth hormone in a natural type protein and can be expressed in a high yield more stably and advantageously, compared with conventional methods for the purification.

Abstract: Disclosed is a TFT substrate for a display apparatus comprising a gate wiring including a gate electrode, a data wiring including a data line, a source electrode connected to the data line, and a drain electrode connected to a pixel electrode, and a semiconductor layer disposed between the gate wiring and the data wiring, wherein the semiconductor layer under the drain electrode is disposed within an area overlapping the gate electrode and the semiconductor layer under the source electrode extends outward to an area not overlapping the gate electrode. Advantageously, the present disclosure provides a TFT substrate for a display apparatus having a high aperture ratio and causing less afterimaging, and a manufacturing method of the same.

Abstract: A CAS data processing apparatus of an STM-1 interface block which is capable of processing CAS signaling data in real time is disclosed. The CAS data processing apparatus of the STM-1 interface block preferably includes a plurality of framers, which separately read signaling data streams from 21 E1 links, a CPU, which outputs a start signal in the CAS signaling data processing, a CAS signaling processing unit, which reformats the signaling data streams inputted from the plurality of the framers into report data in order of the each link, and a Common Memory, which stores the report data outputted from the CAS signaling processing unit.

Abstract: The present invention relates to a system and method for providing prepaid telecommunication services. More particularly, prepaid telephone calls can be made by users without entering any access code, if such calls are made from telephone numbers previously registered in the telecommunication system in connection with valid access codes. Prepaid telephone calls can also be made from non-registered telephone numbers after providing the telecommunication system with a valid access code.

Abstract: A Gigabit Ethernet passive optical network (GE-PON) for securely transferring data through exchange of an encryption key comprises an optical line terminal (OLT) for encrypting a secret key using a public key received through a transmission medium, transmitting the encrypted secret key, encrypting data using the encrypted secret key, and transmitting the encrypted data, and at least one optical network terminal (ONT) for transmitting the public key to the OLT, decrypting the encrypted secret key transmitted from the OLT using a private key, and decrypting the data encrypted with the encrypted secret key, transmitted from the OLT, using the decrypted secret key.

Abstract: A Gigabit Ethernet passive optical network (GE-PON) and method for accurately detecting an error of data to securely transmit the data.

Abstract: The present invention relates to a system and method for providing prepaid telecommunication services. More particularly, prepaid telephone calls can be made by users without entering any access code, if such calls are made from telephone numbers previously registered in the telecommunication system in connection with valid access codes. Prepaid telephone calls can also be made from non-registered telephone numbers after providing the telecommunication system with a valid access code.

Abstract: A Gigabit Ethernet-based passive optical network that can reliably transmit data is disclosed. The network includes an OLT for receiving a public key through a transmission medium, encrypting a secret key by means of the received public key, transmitting the encrypted secret key, encrypting data by means of the secret key, and transmitting the encrypted data, the OLT being located in a service provider-side. The network also includes an ONT for transmitting the public key to the OLT, receiving the secret key transmitted from the OLT, decrypting the secret key by means of a private key, receiving the data, and decrypting the received data by means of the decrypted the secret key. The public key is used for encrypting the secret key. The secret key is encrypted by means of the public key. The data is encrypted by the OLT by means of the secret key.

Abstract: A device and method for managing information data in a mobile IP-based mobile telephone. The device and method employ an embedded web server for displaying a homepage of the mobile telephone on a web browser when linked to the mobile telephone through the web browser; and a program of server driven by the embedded web server to generate a command to enable communication between the mobile telephone and a telecommunication system using the web browser and to transmit a message confirming that data updated in the web browser has been updated in the mobile telephone to the web browser. The homepage of the mobile telephone is adapted to display information management menus of the mobile telephone and includes a language pack that stores at least one language so that the information management menus can be displayed in any selected language. The system and method further employ a memory for storing data of the information management menus.

Abstract: The present invention relates to novel aminopeptidase derived from Bacillus licheniformis, a gene encoding the aminopeptidase, an expression vector containing the gene, a cell transformant transfected with the expression vector and a process for preparing a natural type protein using thereof. More particularly, the present invention relates to a gene encoding aminopeptidase which is cloned and manufactured using the recombinant DNA technique, an expression vector containing the gene, a cell transformant transfected with the expression vector and a recombinant aminopeptidase which is necessary to produce recombinant human growth hormone in a natural type protein and can be expressed in a high yield more stably and advantageously, compared with conventional methods for the purification.

Abstract: A wideband erbium-doped optical fiber amplifier is disposed among an optical fiber through which a first and second band-band optical signals (for example, the C-band and L-band) are transmitted and forms a first optical path and a second optical path parallel to each other. The wideband erbium-doped optical fiber amplifier comprising a first amplifying section disposed on the first optical path, including a first erbium-doped optical fiber to amplify the first-band optical signals, a filter to gain-flatten the amplified first-band optical signals, wherein a reflected portion of the first band optical signal by the filter is directed to the second optical path; and a second amplifying section disposed on the second optical path, having a second erbium-doped optical fiber to amplify received second-band optical signals, wherein the reflected first-band optical signal is used to pump the second erbium-doped optical fiber.

Abstract: A passive optical network (PON) for providing a large amount of data at high speed to subscribers is provided. In particular, a PON employing a multi-carrier CDMA in which a CDMA method is applied for an upstream signal is provided. The PON employing a multi-carrier CDMA includes: optical network terminals (ONTs) for transmitting CDMA-based data using multiple carriers to an optical line terminal (OLT) and for receiving Ethernet-based data transmitted from the OLT; the OLT for transforming CDMA-based data received from the ONT into Ethernet-based data, for transmitting the Ethernet-based data to a higher network, and for transmitting Ethernet-based date to the ONTs; and an optical coupler for coupling CDMA-based optical signals transmitted from the ONTs, for transmitting the coupled optical signal to the OLT, and for distributing an Ethernet-based optical signal transmitted from the OLT to the ONTs.

Abstract: A method for operating wired and wireless phone services interconnectively, includes: receiving a subscriber registration application for wired and wireless services from an arbitrary extension subscriber; performing wired and wireless service registrations in each of the extension subscribers by endowing at least one of the wired terminals and public/private mobile communication terminals with a wired phone number in accordance with the subscriber registration application; making a call to the wired terminal corresponding to the corresponding wired phone number in the case that an arbitrary wired phone number is called, and making a call to the corresponding public/private mobile communication terminal through a mobile communication network in the case that there is the public/private mobile communication terminal to be called simultaneously interconnectively to the wired phone number; and performing a billing according to a usage of the wired and wireless services in each of the extension subscribers.

Abstract: A method for interconnecting wired and wireless phone services of a system for interconnecting wired and wireless phone services includes: registering at least one of wire terminals and public/private mobile communication terminals as extension subscribers and endowing the extension subscribers with each of wired phone numbers; and in the case that an arbitrary wired phone number is called, making a call to the wired terminal corresponding to the wired phone number, and in the case that there is the public/private mobile communication terminal to be simultaneously called with the wired phone number interconnectively, making a call to the corresponding public/private mobile communication terminal through a mobile communication network. Therefore, a general wired subscriber is provided with the wired phone service and a service of portability through the wireless terminal, and a subscriber's billing burden can be reduced.

Abstract: A system for interconnecting wired and wireless phone services in accordance with the present invention includes at least one of first wired terminals; public/private mobile communication terminals which are registered in public and private mobile communication networks; a private base station which constructs a wireless communication path with an arbitrary mobile communication terminal in its service area and manages wireless resources for the mobile communication; and a wired and wireless interconnecting apparatus which is connected to a public phone network and the private base station, constructs an internal network formed of the first wired terminals and the public/private mobile communication terminals to endow each of the terminals with a wired phone number, makes a call to a wired terminal in the case that there is a call to an arbitrary first wired terminal, and performs a switching function to simultaneously make a call to the public/private mobile communication terminal assigned to the first wired

Abstract: A bidirectional WDM self-healing ring network is provided and includes an outer ring network and an inner network for processing N units of optical signals and for performing a protection switching by using the outer ring network when the inner ring network suffers a link failure.

Abstract: The present invention relates to a system and method for providing prepaid telecommunication services. More particularly, prepaid telephone calls can be made by users without entering any access code, if such calls are made from telephone numbers previously registered in the telecommunication system in connection with valid access codes. Prepaid telephone calls can also be made from non-registered telephone numbers after providing the telecommunication system with a valid access code.

Abstract: The present invention relates to a process for removing methionine (Met) residue at N-terminus of proteins specifically. Particularly, the present invention relates to an aminopeptidase which is purified from Bacillus licheniformis removes a methionine residue from N-terminus of peptide and proteins. And the present invention relates to a process for preparing a natural type protein from proteins produced in microorganisms by recombinant DNA technology. Various kinds of natural type proteins such as human growth hormone (HGH) can be prepared massively and easily by the process of the present invention.

Abstract: A CAS data processing apparatus of an STM-1 interface block which is capable of processing CAS signaling data in real time is disclosed. The CAS data processing apparatus of the STM-1 interface block preferably includes a plurality of framers, which separately read signaling data streams from 21 E1 links, a CPU, which outputs a start signal in the CAS signaling data processing, a CAS signaling processing unit, which reformats the signaling data streams inputted from the plurality of the framers into report data in order of the each link, and a Common Memory, which stores the report data outputted from the CAS signaling processing unit.