Abstract: There is provided a code acquisition device and method using a two-step search process in a DS-CDMA UWB modem. The device includes: an I/Q channel symbol generating unit for, generating a plurality (i) of nth I/Q channel symbols in a first search process and generating a plurality of nth I/Q channel symbols in a second search process; a spread code selecting unit for receiving the plurality of nth I/Q channel symbols in the first search process; an NNC2NS tap I/Q channel symbol matched filter unit for, in the second search process, receiving the plurality (i) of nth I/Q channel symbols; a switching unit for changing to a closed state of the second search process; and a super frame and symbol boundary time deciding unit for deciding a super frame time and a symbol boundary time.

Abstract: A light guide unit and a backlight unit and display device using the light guide unit are provided. The light guide unit includes a light guide body that is formed of a transparent material and has at least one concave portion with a concavely depressed bottom surface to accommodate a light source. The light guide body includes a first incidence surface forming a top surface of the concave portion, the first incidence surface patterned such that upwardly incident light is refracted at an oblique angle in a lateral direction; a second incidence surface forming a lateral surface of the concave portion, the second incidence surface to which lateral light is incident; a reflection surface disposed on a bottom surface of the light guide body, which extends from the concave portion; and a refraction surface forming a top surface of the light guide body, the refraction surface through which incident light is refracted and transmitted.

Abstract: There is provided an apparatus for detecting a preamble packet in an orthogonal frequency-division multiplexing (OFDM) system, including: a cross-correlation calculating means for calculating a cross-correlation value between a received signal and previously stored preamble pattern values for an OFDM symbol region (N-point); a delay means for delaying the calculate cross-correlation value as much as a M-point interval; a receiving power measuring means for measuring a receiving power for the guard interval; and a dividing means for calculating a final cross-correlation value by dividing the delayed cross correlation value by the measured power.

Abstract: In one embodiment, the present invention includes an apparatus having a conductive storage medium to store information in the form of electrostatic charge. The conductive storage medium can be disposed in a non-conductive layer that is formed over a charge blocking layer, which in turn may be disposed over an electrode layer. In one embodiment, a barrier layer may be disposed over the non-conductive layer. Other embodiments are described and claimed.

Abstract: In a monolithic air conditioner, a front panel is mounted on a front of a cabinet and includes an indoor air intake, an indoor air outlet, and a discharge guide backwardly extended from the indoor air outlet. An indoor heat exchanger is mounted on a back of the front panel. An air guide on which the indoor heat exchanger is mounted includes an orifice in a center to pass sucked indoor air therethrough. A scroll is mounted on a back of the air guide to guide the sucked indoor air. An indoor fan is mounted between the scroll and the air guide to suck the indoor air. A shroud is mounted on a back of the scroll to guide sucked outdoor air and it defines an orifice in a center to discharge the sucked outdoor air. An outdoor fan is mounted on a back of the shroud to suck the outdoor air, a fan motor is mounted on the scroll to drive the indoor and outdoor fans, and an outdoor heat exchanger is mounted on a back of the outdoor fan to exchange heat with the sucked outdoor air.

Abstract: Ligand compositions for use in preparing discrete coated nanostructures are provided, as well as the coated nanostructures themselves and devices incorporating same. Methods for post-deposition shell formation on a nanostructure and for reversibly modifying nanostructures are also provided. The ligands and coated nanostructures of the present invention are particularly useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nanostructures.

Abstract: The invention relates to the use of a precipitated silica, pretreated by at least one organosilane hydrophobing compound or one hydrophobing silicone oil, as a reinforcing filler for silicone elastomer, the said pretreated silica being incorporated in the silicone elastomer by cold mixing and having the following features: —a BET specific surface ranging from 50 to 450 m2/g, —a water wettability lower than 80, —a sulfur content lower than 0.1% by weight. The invention is directed to the curable silicone elastomer composition thus obtained.

Abstract: Apparatuses, a method, and a system for a non-volatile, probe-based memory device are disclosed herein. In various embodiments, probe-based memory may be one-time programmable or rewritable nonvolatile probe-based memory.

Abstract: Disclosed is a method for controlling power level of received signal in an ultra wide band transmission system which uses multi frequency bands, and includes a pre-gain controller (PGC) and a voltage gain amplifier (VGA). The method for controlling a power level of a received signal includes the steps of: a) at the PGCs, detecting which multi frequency band is used in a transmitter of the transmission system; b) at the PGCs, obtaining the voltage gain owing to the discrepancy in the power levels of the received signals; and c) at the PGCs, compensating for the power loss based on the voltage gain.

Abstract: Provided are a high speed and low power fixed-point multiplier and method thereof. The multiplier includes: a partial product calculation unit for dividing input data into a plurality of bit groups, each bit group having a predetermined number of bits, generating partial products by independently multiplying a fixed coefficient for each bit group, and summing partial products included in a corresponding bit group, to thereby generate a summed partial products; and an adding unit for adding the summed partial products of each bit group generated from the partial product calculation unit.

Abstract: A rake receiver for DS-CDMA UWB system and a DS-CDMA receiver having the same are provided. The rake receiver includes: a channel estimator for estimating a channel having a predetermined chip duration by using a synchronization acquisition sequence; a tracking module for detecting a channel variation and adjusting a synchronization position value when the channel variation is detected; a first switch for selecting one of an output value of an analog-to-digital converter and an output value of a correlator and outputting the selected value; a second switch for selecting one of the output value of the analog-to-digital converter and the output value of the correlator; and a plurality of demodulators having a parallel processing structure to demodulate received signals by using the channel estimation value inputted from the channel estimator, the synchronization position value stored by the tracking module, and an output value of the second switch.

Abstract: Provided is a method for adjusting Fast Fourier Transform (FFT) window positioning in a Multi Band Orthogonal Frequency Division Multiplexing Ultra-Wideband (MB-OFDM UWB) system. The method includes the steps of acquiring an initial FFT window position and a frequency hopping position, demodulating a received signal by using the initial FFT window position and the frequency hopping position acquired in the acquiring step, transmitting received data information to a Media Access Control (MAC) layer with a reception frame (RX frame) structure and judging at the MAC layer whether or not a packet error is occurred based on Frame Check Sequences (FCSs), and if no packet error is occurred, returning to the demodulating step, and if the packet error is occurred, changing a register map by using a predetermined interface line in a MAC-physical layer (MAC-PHY) interface to thereby adjust the FFT window position and the frequency hopping position, and then returning to the demodulating step.

Abstract: A parallel equalizer for a DS-CDMA UWB system and method thereof are provided. The parallel equalizer includes: a filter block for filtering a training input signal in a ‘training mode’, and filtering the plurality of input signals in parallel in a ‘symbol decision mode’; a symbol decision block for obtaining a symbol error based on a output from the filter block and a training symbol in the ‘training mode’, and estimating a transmission symbol for each of the input signals in the ‘symbol decision mode’, obtaining an error of one among the estimated transmission symbols for a symbol error calculating input signal; and an weight update block for updating a filter tap coefficients of the filter block based on the training input signal or the symbol error calculating input signal and the symbol error and transmitting the updated filter tap coefficients into the filter block.

Abstract: Provided are an apparatus and method for estimating and correcting a frequency offset in a multiband-Orthogonal Frequency Division Multiplexing Ultra-Wideband system using a time frequency hopping.

Abstract: This invention is related to a reactive nanoparticular cyclodextrin derivative useful as a porogen and a low dielectric matrix, with excellent mechanical properties and uniformly distributed nanopores, manufactured by sol-gel reaction of the above reactive cyclodextrin. Furthemore, this invention also is related to an ultralow dielectric film, with uniformly distributed nanopores, a relatively high porosity of 51%, and a relatively low dielectric constant of 1.6, manufactured by thin-filming of the conventional organic or inorganic silicate precursor by using the above reactive cyclodextrin as a porogen.

Abstract: A memory cell including: a substrate; a channel region located in the substrate; a tunnel dielectric located over the channel region; and nanocrystals located over the tunnel dielectric.

Abstract: The present invention relates to an organic electroluminescent display and a driving method thereof, which divides one frame into a plurality of subframes. Since the present invention divides one frame into several subframes, and drives an organic EL device with the subframes assigned to the upper bits and with the corrected gray data for representing the detailed grays between the basic grays during the subframes assigned to the lower bits, it is possible to represent sufficient number of grays regardless of the unstable luminescence characteristics of an organic EL device.

Abstract: A method of forming a storage device is disclosed. A sacrificial layer is formed over a semiconductor substrate. Impurities are introduced into sacrificial layer. The substrate is annealed to precipitate discrete storage elements in the sacrificial layer. The sacrificial layer is selectively removed using a process that leaves the discrete storage elements relatively intact. The discrete storage elements settle over a tunnel dielectric and are equidistant from the storage device's channel region.

Abstract: A planarized surface may be formed by initially forming an aperture through an insulating layer. The insulating layer and its aperture may be conformally coated with a conductive material that ultimately acts as a planarization stop. The conductive material may then be covered with another insulator that fills the remainder of the aperture. Thereafter, the structure may be planarized down to the conductive layer that acts as a planarization stop.

Abstract: A method to fill a valley on a substrate comprises depositing a first material onto the substrate using a chemical vapor deposition process to partially fill the valley and depositing a second material onto the substrate using a spin-on deposition process to completely fill the valley. The chemical vapor deposition process may comprise a high-density plasma chemical vapor deposition process or a low-pressure chemical vapor deposition process. The method may further comprise depositing a sacrificial layer, performing a first curing process on the first and second materials, polishing at least the sacrificial layer to remove at least a portion of the second material, and performing a second curing process on the first and second materials.