Abstract: In some implementations, the device may include a first circuit receiving an input signal having a first frequency, the first circuit including a first node and a second node. The device may include a second circuit receiving an input signal having a second frequency different from the first frequency, the second circuit including a first node and a second node, a first inductor coupled between the first node of the first circuit and the first node of the second circuit. The device may include a second inductor coupled between the second node of the first circuit and the second node of the second circuit, a first switch coupled between the first node of the second circuit and the second node of the second circuit, at least one differential inductor formed of the first inductor and the second inductor in response to the first switch being in a closed state.

Abstract: A slot die coater that includes a lower die block having a manifold, an upper die block, and a shim plate interposed between the lower die block and the upper die block to form a slot. The manifold configured to accommodate a coating solution, wherein the coating solution is delivered and coated on a substrate through an exit port in communication with the slot. The shim plate includes a plate-shaped member having an open portion which is cut in at least an area to determine a coating width of a coating layer coated on the substrate, and a structure protruding from the plate-shaped member and inserted into the manifold.

Abstract: An electronic device including a cover having a display protection function and a method thereof are provided. The method includes acquiring at least one of context information and attribute information of an application according to whether the cover is closed and displaying an object related to the acquired information on a region which is included or is not included in a region corresponding to the cover window of a display of the electronic device.

Abstract: A method for determining the screen brightness in the electronic device includes determining whether a flip cover opens or closes a screen when the screen display event occurs, determining a first brightness value for a full screen display mode when the flip cover is opened, and determining a second brightens value for a flip covered window display. Other embodiments including an apparatus for determining the screen brightness are also disclosed.

Abstract: A method for displaying a status of an electronic device having a cover attached thereto. The cover has a screen window formed on a part of the cover. The method includes determining whether the cover is open or closed; checking an operation of a status indicator while the cover is closed; and displaying information corresponding to the operation of the status indicator in at least a part of a screen area that is exposed through the screen window.

Abstract: A wearable electronic device is provided. The wearable electronic device includes a wear-or-not of a user for the wearable electronic device and limit at least one linked function using data transmitted and received to and from another electronic device, when the determining of the wear-or-not is determined as a non-wear state.

Abstract: In a handoff system and method for a dual mode terminal, the handoff system includes: a dual mode terminal which receives a message containing location information of a router of a second network while performing handoff from a first network to the second network, and which transmits a registration request message containing the location information of the router; and a home agent which transcodes data transmitted from a content providing server to be adapted for a bandwidth of the second network on the basis of information contained in the registration request message received from the dual mode terminal, and which transmits the transcoded data to the dual mode terminal.

Abstract: A method for operating an electronic device with a display includes: displaying a virtual keypad on a screen of the display; receiving one or more characters from a user through the virtual keypad; displaying the one or more characters on the screen; displaying one or more recommended words at a location close to the virtual keypad on the screen based on at least some of the one or more characters; displaying a first key on the screen; maintaining the one or more characters on the screen when a user input for selecting the first key is received; and removing the recommended words from the screen. Furthermore, other embodiments can be made.

Abstract: An electronic device including a cover having a display protection function and a method thereof are provided. The method includes acquiring at least one of context information and attribute information of an application according to whether the cover is closed and displaying an object related to the acquired information on a region which is included or is not included in a region corresponding to the cover window of a display of the electronic device.

Abstract: A method for displaying a status of an electronic device having a cover attached thereto. The cover has a screen window formed on a part of the cover. The method includes determining whether the cover is open or closed; checking an operation of a status indicator while the cover is closed; and displaying information corresponding to the operation of the status indicator in at least a part of a screen area that is exposed through the screen window.

Abstract: A method for determining the screen brightness in the electronic device includes determining whether a flip cover opens or closes a screen when the screen display event occurs, determining a first brightness value for a full screen display mode when the flip cover is opened, and determining a second brightens value for a flip covered window display. Other embodiments including an apparatus for determining the screen brightness are also disclosed.

Abstract: In a Voice over Internet Protocol (VoIP) video communication method and apparatus, first and second VoIP-based terminals store video event indexes and images mapped thereto with respect to state information of a user and terminal, and establish a session using session establishment information defining the video event. The first terminal then transmits a data packet including the video event index, and the second terminal receives the data packet and outputs an image mapped to the video event index of the images stored in advance. Thus, by transmitting and receiving a predefined index alone without transmitting user and terminal states as a real time data-type image, the VoIP video communication method and apparatus prevent unnecessary waste of bandwidth in video communication.

Abstract: In a Voice over Internet Protocol (VoIP) video communication method and apparatus, first and second VoIP-based terminals store video event indexes and images mapped thereto with respect to state information of a user and terminal, and establish a session using session establishment information defining the video event. The first terminal then transmits a data packet including the video event index, and the second terminal receives the data packet and outputs an image mapped to the video event index of the images stored in advance. Thus, by transmitting and receiving a predefined index alone without transmitting user and terminal states as a real time data-type image, the VoIP video communication method and apparatus prevent unnecessary waste of bandwidth in video communication.

Abstract: In a video conference system and method, a first terminal and second through Nth terminals maintain a session for a conference. The first terminal prevents an input of further information to the white board by the second through Nth terminals during a set time period from an input of information to the white board and the second through Nth terminals transmit further information, input during a buffering mode selected in an unlocked state, to other terminals participating in the session upon the input of information to the white board being allowed after the set time period has elapsed.

Abstract: A wireless network system and method to secure Quality of Service (QoS) according to a type of Wireless Local Area Network (WLAN) service in a WLAN communication system based on IEEE 802.11 includes: an authentication server adapted to set a priority for an access category of a wireless network service requested by a user to perform an authentication procedure in response to a user terminal requesting authentication for access to a wireless network; and an Access Point (AP) adapted to receive and store access category information of the user terminal authenticated by the authentication server and to compare access category information contained in a packet received from the user terminal to the previously stored access category information of the user terminal to control access to the wireless network.

Abstract: A network access method of Wireless Local Area Network (WLAN) terminals and a network system thereof which are designed to support network association between a terminal and an Access Point (AP) in an IEEE 802.11 WLAN environment includes: scanning at least one AP in the network and determining whether or not the AP uses a Wired Equivalent Privacy (WEP) Key; and converting to an Open System authentication mode or a Shared Key authentication mode according to the determination. Accordingly, the terminal can scan for the existence of a WEP Key from at least one AP and convert into a network-accessible Open System authentication mode and a Shared Key authentication mode so as to execute an association.

Abstract: In a system and method for handoff using a hybrid network, a wireless local area network (WLAN) terminal determines its own position information through communication with a code division multiple access (CDMA) base station and a global positioning system (GPS) satellite, and a cell mapping server obtains information about a WLAN cell where the WLAN terminal is currently located from the WLAN terminal position information, determines information about a cell to which the terminal is expected to be handed off from the current position of the WLAN terminal, and provides the cell information to the WLAN terminal. This allows handoff to be performed without scanning a destination access point, thereby significantly reducing WLAN handoff time.

Abstract: A method for exchanging media description information between user agents using a session initiation protocol (SIP) comprises the steps of: providing information on an OS and sound module of a first user agent so that the first user agent generates, in a media description field of a session description protocol (SDP), an SIP message including the information on the OS and sound module of the first user agent, and sends it to a second user agent; and setting a processing format for voice data of the second user agent so that the second user agent determines the voice data format supportable by the first user agent from the information on the OS and sound module of the first user agent, compares it with the voice data format supportable by the second user agent, and sets a format commonly supportable by the first and second user agents as the voice data format of the second user agent.

Abstract: In a wireless local area network (WLAN) and a channel selection method of a WLAN station, a station newly entering the WLAN captures packets from WLAN service channels, which packets are provided by at least one access point (AP) for a predetermined measuring time. The WLAN calculates, from the captured packets, busy factors indicative of the load on each WLAN service channel so as to confer a priority between WLAN service channels. The WLAN selects channels according to the conferred priority.

Abstract: A method for scaling a display size between different types of user agents. The method includes exchanging session initiation protocol messages including media information when performing a call setup for setting up a media session between the user agents; determining any one of the user agents to scale the display size from the exchanged media information; and scaling, by the determined user agent, the display size on the basis of the media information, and sending video data subject to the scaling to the other user agent(s).