Samsung Electronics Co., Ltd.

Lg Display Co., Ltd.

Joo-Hong Lee

Doo-Yong Yang

Soo-Hwan Kim

Woong-Ki Min

Tai-Yoon Lee

Chul-Hoon Hwang

Ki-Heon Yoon

Geun-Myeon Lee

Sung-Gon Park

Yoon-San Park

A data driving apparatus for a liquid crystal display device includes an output buffer for buffering and outputting a data voltage input from a digital-analog converter, wherein the output buffer includes an input amplifier for amplifying and outputting current proportional to the data voltage, an outputter for supplying a data voltage corresponding to the input data voltage to an output channel using charging and discharging current proportional to output current from the input amplifier, a control switch unit connected between the input amplifier and the outputter, for driving the outputter in a switching mode to precharge the output channel in a precharge period prior to a data supplying period in which the outputter outputs the data voltage, and a mode controller for controlling the control switch unit in response to an input control signal.

Data driving apparatus for liquid crystal display device having a control switch for precharging an output channel

An operation method and apparatus of a terminal for call move are provided. The method includes, if receiving a call move request signal including registration information of a first device that is in voice communication with a second device from the first device, transmitting, by the terminal, a call state request signal for the first device using the registration information to a server, if determining that a call state for the first device is not a call through the server by using a call state response signal received from the server, establishing, by the terminal, a wireless connection with the first device, and, performing, by the terminal, voice communication with the second device through the established wireless connection.

Method and apparatus for moving call

A method for controlling blind/attended transfer in an SIP-based network includes: transmitting, by an SIP-based terminal, a call request message to a third terminal, which is an object of a call transfer, after pausing a communication with a second terminal by transmitting a call waiting message to the SIP server; determining, by the SIP-based terminal, whether a call transfer function (Hook on) has been activated prior to receiving a call response (200OK) signal from the SIP server; and performing, by the SIP-based terminal, the blind transfer with the third terminal by transmitting a call transfer message (REFER) to the SIP server upon the call transfer function (Hook on) being activated prior to receiving the call response message from the SIP server. The SIP-based terminal processes the blind/attended transfer using one input, thereby providing convenience to a user.

System for blind/attended transfer in session initiation protocol (SIP)-based network and method of controlling the transfer

In a private wireless communication system and a mobile station (MS) control method using the same, the system informs an MS of its entrance into a private network using a system parameter message broadcast through a paging channel in order to control additional functions of the MS (e.g., a camera function, a MP3 player function, and a USB data communication function), and the MS transmits a registration message to the private wireless communication system through an access channel. The system determines whether the MS is registered in the private network based on the registration message from the MS, and if the MS is registered in the private network, controls the functions of the MS by writing a message for MS function control based on MS control information set in a database, and by and transmitting the MS function control message to the MS. After the system requests an acknowledgment message from the MS, if the acknowledgment message is not received from the MS, the private wireless communication system rewrites and retransmits the MS function control message to the MS.

Private wireless communication system and method for controlling mobile station using the same

In a Short Message Service (SMS) between private wireless network systems in a multi-zone arrangement, when private wireless network systems, which have been separately placed, are configured in one service area called a multi-zone arrangement, Home Location Register (HLR) information is periodically updated and synchronized through interfacing between the private wireless network systems in the multi-zone arrangement, and making it possible to determine whether or not a receiving terminal is positioned in a service area of which of the private wireless network systems using the synchronized HLR information. An SMS transmission is requested to a call processor of the associated private wireless network system to allow performing SMS message transmission to the associated terminal. That is, it allows an automatic SMS incoming operation at the associated private wireless network system using HLR database information updated periodically, without a separate request for position registration and specific option set by a user.

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Seoul, South Korea

Joo-Hong Lee