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 method of cleaning a chamber used for annealing doped wafer substrates. In one embodiment the method provides removing dopants deposited in an annealing chamber after an annealing process of a doped substrate by flowing one or more volatilizing gases into the annealing chamber, applying heat to volatilize the deposited dopants in the annealing chamber, and exhausting the chamber to remove volatilized dopants from the annealing chamber.

Abstract: A call control system and method for mobile video telephony that enables an automatic call setup between a mobile video telephony terminal and a mobile audio-dedicated terminal is disclosed. A call control method for communication between mobile terminals having different capabilities includes receiving, at a called party terminal, a call setup message, transmitting a disconnection message to a calling party terminal in response to the video call setup message and performing a call setup procedure triggered by the called part terminal.

Abstract: An error correction system and method for a mobile terminal is provided that are capable of correcting transmission packet errors. The error correction method for a mobile communication system including at least one mobile terminal receiving ciphered text from a network includes generating an output by applying an input parameter containing an overflow counter calculated by the mobile terminal to a predetermined algorithm; deciphering the ciphered text using the output to recover a clear text; updating the overflow counter if the ciphered text is not successfully deciphered; regenerating the output using the updated overflow counter; and recovering the clear text using the regenerated output with the ciphered text.

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 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 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 call processing system and method are based on a dual mode terminal. The call processing system comprises: a Private Branch Exchange (PBX) which, when a call is incoming to an extension through a first network, checks registration information based on a link test message transmitted periodically from a destination terminal having a number of the extension to which the call is incoming, and processes the incoming call in real time; and a dual mode terminal which is interconnected to an extension of the PBX, operates in at least one of a Wireless Local Area Network (WLAN) mode and a wireless communication mode, and processes the incoming call.

Abstract: A liquid crystal display (LCD) includes a gate line, a data line, and a pixel electrode including first and second sub-pixel electrodes to which different voltages are applied. A thin film transistor is coupled with the gate line and the data line to apply a voltage to the pixel electrode, and a storage electrode partially overlaps with the first and second sub-pixel electrodes. The first sub-pixel electrode is arranged on all but one side of the second sub-pixel electrode, portions of a first side of the storage electrode overlap with the boundaries of the first and second sub-pixel electrodes, portions of a second side of the storage electrode protrude and partially overlap with the second sub-pixel electrode, and the storage electrode comprises a storage electrode extension, which protrudes from the second side of the storage electrode across the first sub-pixel electrode and overlaps with the second sub-pixel electrode.

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 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: 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.