Abstract:
A method and apparatus for encoding and decoding data for a recording system. The method of encoding data involves encoding input data into a predetermined code and precoding the predetermined code so that output levels of a channel can be detected, the channel being defined by a predetermined channel polynomial.
Abstract:
An apparatus and a method for handover between a broadband wireless communication system and a heterogeneous communication system are provided. An operating method of a base station for the handover between a broadband wireless communication system and a and a heterogeneous communication system includes when a terminal enters a border cell, sending a message requesting to measure a signal level of a downlink, to the terminal, when a signal level measured by the terminal falls below a preset threshold, requesting a handover, to a corresponding heterogeneous communication system, over a core network, receiving a message, including channel allocation information for the handover, from the corresponding heterogeneous communication system, and forwarding the message, including the channel allocation information, to the terminal. Hence, when the terminal gets out of the service coverage area of the broadband wireless communication system, it can be handed over to the heterogeneous communication system seamlessly.
Abstract:
A liquid crystal includes a plurality of pixels, a plurality of gate lines, and a plurality of data lines. The plurality of pixels are arranged in a matrix format. The plurality of gate lines transmit a gate signal to the pixels. The plurality of data lines cross the gate lines and transmit data voltages respectively corresponding to the plurality of pixels a plural number of times. A voltage that is the same as that of the data lines neighboring the first and last data lines is applied to the first and last data lines among the plurality of data lines at least once.
Abstract:
A fusing roller which is heated by a heat source, includes: a core member; a first primer which is formed on a circumference of the core member; an elastic layer which is formed on a circumference of the first primer, and adhered on the circumference of the core member by the first primer; and a basic coating layer which is disposed between the core member and the first primer, and chemically combined with the first primer.
Abstract:
The present invention provides a refrigerator including a passage through which cool air flows from a freezing chamber to a refrigerating chamber, a passage opening and closing member for wholly or partially opening and closing the passage, a driving unit for driving the passage opening and closing member so that the passage opening and closing member can open and close the passage, and a control unit for comparing a set temperature of the refrigerating chamber with a measured temperature of the refrigerating chamber, and controlling an operation of the driving unit according to a comparison result. According to the refrigerator of the present invention, as the passage for supplying the cool air from the freezing chamber to the refrigerating chamber is wholly or partially openable and closable, the actual temperature of the refrigerating chamber can be precisely controlled into the preset temperature. Therefore, stored articles can be freshly maintained to improve users' satisfaction.
Abstract:
Provided is a wired Multiple-Input Multiple-Output (MIMO) link tester. The wired link tester, includes: a simulating unit for constructing a wired link corresponding to a wireless link for a multiple-input multiple-output system and simulating wireless-link characteristics using each variable element located on the wired link; and a control means for prestoring a predetermined value of the variable element depending on the state change time and the number of the state changes and controlling the variable element according to the predetermined value of the variable element.
Abstract:
The pesent invention discloses a memory module and a signal line arrangement method thereof. The memory module includes memory chips mounted on both sidees in a mirror form; and a printed circuit board (PCB) having same signal applying contact pads arranged on both sodes which same signal applying balls of the memory chips contact in the mirror form, wherein a via is formed at a location close to the same signal applying contact pad of one side among the same signal applying contact pads arranged on both sides in the mirror form, the via connecting the other side to the signal line of one side, and a signal transmitted from the other side is connected to a contact junction, the contact junction is connected to the same signal applying contact pad of the other side, the contact junction is connected to the via of the other side, and the via of one side is connected to the same signal applying contact pad of one side.
Abstract:
Provided are semiconductor devices and methods of fabricating the same. A semiconductor device may include a semiconductor substrate with a device isolation layer defining HVE and HVD active regions. Gate insulation layer patterns may be disposed on the HVE and HVD active regions. Gate electrodes may be disposed on the gate insulation layer patterns to intersect the HVE and HVD active regions and the device isolation layer. An ion implantation layer may be disposed on the semiconductor substrate under the gate electrode of the HVD active region, spaced apart from the device isolation layer, and serves to adjust a threshold voltage.
Abstract:
Provided is a polymer electrolyte membrane including an inorganic nanoparticle bonded with a proton-conducting group, a solid acid and a proton-conducting polymer. The inorganic nanoparticle bonded with the proton-conducting group may be obtained by reacting a compound including a proton-conducting group with a metal precursor. The polymer electrolyte membrane has significantly enhanced proton conductivity and reduced methanol crossover.
Abstract:
A method of providing a handover service to a mobile communication terminal supporting multi-modal communications, and a mobile communication terminal for performing the method are provided. More particularly, a method of eliminating an interruption of a data transmission service occurring during a handover between different communication networks, and a terminal for performing the method are provided. A method of providing a handover service of a mobile communication terminal supporting multi-modal communications can include: transmitting and receiving data to/from a corresponding node via a first access network and a second access network while simultaneously maintaining an association with the first access network and the second access network, determining a point in time of completing a handover registration, and releasing an association with the first access network after the point in time of completing the handover registration.