Abstract: The present invention relates to a gallium nitride-based compound semiconductor device and a method of manufacturing the same. According to the present invention, there is provided a gallium nitride-based III-V group compound semiconductor device comprising a gallium nitride-based semiconductor layer and an ohmic electrode layer formed on the gallium nitride-based semiconductor layer. The ohmic electrode layer comprises a contact metal layer, a reflective metal layer, and a diffusion barrier layer.

Abstract: The present invention relates to a thiogallate phosphor expressed as AB2S4. The thiogallate phosphor of the present invention is configured by replacing a position A where a divalent ion is required with a trivalent element having an ion size similar to that of the element at the position A and with a monovalent element having an ion size similar to that of the element at the position A. Preferably, the trivalent and monovalent elements are replaced by the same amount. Further, the present invention relates to a white light emitting diode and is to manufacture a white light emitting diode with excellent luminous efficiency.

Abstract: The disclosure relates to an AC LED dimmer and dimming method thereof. The AC LED dimmer includes a rectifier receiving AC voltage from an AC voltage source and full-wave rectifying the AC voltage; a direct current (DC)/DC converter receiving the full-wave rectified voltage from the rectifier, generating a full-wave rectified stepped-up voltage, and generating a pulse enable signal; a pulse width modulation controller receiving the full-wave rectified stepped-up voltage and generating a pulse width modulation signal to dim an AC LED in response to the pulse enable signal; a switch driving the AC LED under control of the pulse width modulation signal, and an electromagnetic interference (EMI) filter to be connected between the AC voltage source and the switch to eliminate electromagnetic interference from the AC voltage source. Accordingly, the dimmer can perform an efficient and linear dimming function and suppress harmonics.

Abstract: In a visible-light blocking member, an infrared sensor including the visible-light blocking member, and a liquid crystal display including the infrared sensor, a visible-light blocking member is a structure including amorphous germanium or a compound of amorphous germanium and has higher transmittance for a wavelength of an infrared ray region than for a wavelength of a visible light region. Accordingly, sensitivity to infrared rays may be increased by applying the visible-light blocking member to the infrared sensor.

Abstract: The present invention relates to a time slot allocation apparatus and method for preventing collisions between time slots in a TDMA-based RFID network. The time slot allocation apparatus allocates time slots, obtained by dividing a same frequency band into unit time slots, to RFID readers for reading identification codes of RFID tags (10) in the TDMA-based RFID network. A time slot allocation device (33a) allocates time slots required for communication with the RFID tags to a plurality of RFID readers (20) provided in the RFID network. A collision prevention device (33b) performs control such that the time slot allocation device allocates time slots to the plurality of RFID readers while distributing different and non-successive time slots to adjacent RFID readers, thus preventing collisions from occurring between time slots allocated to the RFID readers.

Abstract: A semiconductor memory apparatus includes a memory device having a first plane and a second plane and a repair address latch unit configured to latch a plurality of repair addresses outputted from the memory device. The apparatus also includes an address comparison unit configured to compare the plurality of repair addresses stored in the repair address latch unit and a first plane address and a second plane address which are sequentially inputted. A repair processing unit is configured to selectively activate corresponding memory cell groups of the first plane and the second plane in conformity with the comparison result of the address comparison unit under the control of a first plane signal, a second plane signal and a start pulse signal.

Abstract: A method and system for protecting against unauthorized use of a mobile terminal operating with a subscriber identity module (SIM) card is provided. The method for protecting against unauthorized use of a terminal operating with a subscriber identity module (SIM) card compares a secondary version of a temporary identity information stored in a storage unit and a primary version of the temporary identity information stored in the SIM card; sends a message containing a unique identity information to a network when the primary version and the secondary version of the temporary identity information differ from each other; and restricts operation of a function of the terminal when a registration reject message is received in response to the message containing the unique identity information.

Abstract: A system which uses movement of a human body to control a function of a terminal comprises: a detecting device for detecting variation of the movement of the human body depending on an intention of a user so as to transmit a detection signal; and a terminal for storing a reference signal according to at least one class of movement and a control signal corresponding to the reference signal, for searching for a reference signal the same as the detection signal received from the detecting device, and for processing a function based on the control signal corresponding to the reference signal when the reference signal the same as the detection signal is identified. Thereby, a user not only controls the terminal or a driving device, but also performs authentication processing using simple movement of his/her body without any hand operation. A corresponding method for controlling a function using movement of the human body is disclosed.

Abstract: In one embodiment, a redundancy circuit may include a comparison unit configured to record a first repair address through fuse cutting, compare a comparison address with the first repair address, and output a comparison result signal; a first fuse enable unit configured to output a first fuse enable signal for repairing the first repair address; a second fuse enable unit configured to output a second fuse enable signal for repairing a second repair address; a first determination unit configured to output a first repair determination signal in response to receipt of the first fuse enable signal and the comparison result signal; and a second determination unit configured to output a second repair determination signal in response to receipt of an inverted signal of a value of the comparison result signal corresponding to the certain bit, remaining bits, and the second fuse enable signal.

Abstract: A block decoder of a semiconductor memory device includes a control signal generation circuit configured to output a control signal in response to a first address mixing signal, a second address mixing signal, and an enable period signal and a block selection signal generation circuit configured to generate a block selection signal for selecting a memory block in response to the control signal.

Abstract: The present invention relates to a display panel that includes a substrate; a first partition arranged on the substrate, defining a first region, and having an undercut; a second partition arranged outside the first partition; a color filter arranged on the substrate and positioned in the first region; and a common electrode arranged on the color filter.

Abstract: Disclosed are a light emitting device and a method of fabricating the same. The light emitting device includes a substrate; first and second light emitting cells, each including a first semiconductor layer, an active layer, and a second semiconductor layer; and a connector located between the first and second light emitting cells and the substrate, to electrically connect the first and second light emitting cells to each other. The connector extends from the second semiconductor layer of the first light emitting cell, across the substrate, and through central regions of the second semiconductor layer and active layer of the second light emitting cells, to contact the first semiconductor layer of the second light emitting cell.

Abstract: A method of managing websites registered in a search engine in a search engine administration system includes receiving, by an interface module, website information on a website. A website registration module sorts the website information according to an information field. The sorted website information is recorded in a database, and an adult keyword database stores adult keywords. An HTML file of a web page of the website is extracted, and a redirection tag included in the HTML file is extracted by analyzing the HTML file. A character string associated with a target URL of the redirection tag is also extracted so that the adult keyword database is searched for an adult keyword corresponding to the extracted character string. When an adult keyword corresponding to the extracted character string is found, a process for the website is also performed. The process for the website includes contacting a registrant of the website.

Abstract: A method for transmitting a Rights Object (RO) includes generating a password key by encrypting a password, generating the RO using the password key, and transmitting the RO from a first device to a second device. The second device and the first device share the password and the second device generates the password key using the same encryption method as that used by the first device to generate the password key. The second device decrypts a Message Authentication Code (MAC) key and a Rights Object Encryption Key (REK) using the password key, decrypts a Content Encryption Key (CEK) using the decrypted REK, and verifies integrity of the RO using the decrypted MAC key. The second device can use and/or access content associated with the RO using the decrypted CEK. The CEK may be generated by the first device or may be the CEK from a Rights Issuer.

Abstract: A thin film transistor (TFT), a method of fabricating the TFT, and a flat panel display having the TFT, wherein the TFT includes a substrate; a gate electrode provided on the substrate; a gate insulating layer provided on the gate electrode; a source electrode and a drain electrode provided on the gate insulating layer and insulated from the gate electrode; and an organic semiconductor layer contacting the source and drain electrodes and insulated from the gate electrode.

Abstract: A semiconductor device comprises: a semiconductor substrate including an active region defined as a device isolation film; a bit line contact hole obtained by etching the semiconductor substrate; a bit line contact plug having a smaller width than that of the bit line contact hole; and a bit line connected to the upper portion of the bit line contact plug, thereby preventing a short of the bit line contact plug and the storage node contact plug to improve characteristics of the semiconductor device.

Abstract: A circuit board and a heat radiating system of the circuit board. In the circuit board, a plurality of conductive layer regions coated with a conductor are separately formed on both sides of an insulating substrate, the conductive layer region formed on either side of an insulating region on each of the both sides of the insulating substrate, the plurality of the conductive layer regions includes a plurality of through holes which penetrate through the insulating substrate and are coated with a conductor over an inner wall, the conductor in the through hole electrically conducts the coated conductor of the plurality of the conductive layer regions, one of the lead pins is connected to one of the separated conductive layer regions on the both sides based on the insulating region, and the other lead pin is connected to the other conductive layer region.

Abstract: An on-die termination circuit includes a reference period signal generation circuit that generates a reference period signal according to a level of a reference voltage, a first period signal generation circuit that generates a first period signal according to a voltage level of a pad, a period comparison circuit that compares a period of the first period signal with a period of the reference period signal and count a plurality of driving signals, and a driver circuit that drives the pad in response to the plurality of driving signals.

Abstract: A display device to change an image displayed in a display area when the display area is changed includes a memory, a location output unit and a screen display unit. The memory stores size information of a display area displayed on a screen and the image data of the displayed image. The location computing unit computes a start point of the changed display area when the display area is changed. The display unit decodes data corresponding to the size of the display area based on the computed new start point from the image data to display the decoded data in the display area. Since the start point is obtained with center point of the changed display area and its size information and then a display area to be displayed is determined based on the start point, a current search location is maintained even when the screen is swung.

Abstract: Disclosed herein is a slim LED package. The slim LED package includes first and second lead frames separated from each other, a chip mounting recess formed on one upper surface region of the first lead frame by reducing a thickness of the one upper surface region below other upper surface regions of the first lead frame, an LED chip mounted on a bottom surface of the chip mounting recess and connected with the second lead frame via a bonding wire, and a transparent encapsulation material protecting the LED chip while supporting the first and second lead frames.