| 27th week of 2011 patent applcation highlights part 26 |
| Patent application number | Title | Published |
|---|
| 20110164625 | Network Timing Distribution and Synchronization Using Virtual Network Delays - A network component comprising a source-delay locked loop (S-DLL), a source timestamp queue (S-Q) coupled to the S-DLL, and a switch fabric coupled to the S-Q such that the S-Q is positioned between the switch fabric and the S-DLL, and wherein the S-DLL is configured to couple to an absolute timing component. Disclosed is a method comprising queuing a plurality of timestamps at a plurality of timestamp intervals from a source node, returning the received timestamps to the source node at the same timestamp intervals, receiving a plurality of offsets corresponding to the timestamps that are calculated using a virtual delay time for the timestamps from the source node, and aligning the queued timestamps to match the virtual delay time before processing additional timestamps to synchronize transmissions and establish frequency alignment with the source node. | 2011-07-07 |
| 20110164626 | METHOD FOR ADJUSTING TIME SLOTS IN A COMMUNICATION NETWORK - A communication network for providing media arbitration via a communications protocol using consecutive communication slots in a communication network. The communication network comprises a plurality of communication nodes, each node arranged for communicating frames of data with the other nodes during a dynamic segment comprising dynamic communication slots with respective communication slot numbers. Each of the plurality of communication nodes includes a time base comprising consecutive timeslots, associated with the dynamic communication slots, each timeslot comprises a transmission action point located such that transmission of each frame of data starts and ends at a transmission action point; a communication slot number controller, for adjusting a communication slot number if no communication is ongoing at the end of a time slot and to suspend adjusting the communication slot number if communication is ongoing at the end of a time slot, and a minislot counter for counting minislots while the incrementation of the communication slot counter is suspended, and a timing unit for determining a duration of a reception of frame, and a control unit for controlling the communication slot number controller to either continue adjusting of the slot number if the determined duration of the reception is above a certain threshold or to continue adjusting of the slot number using the value obtained with the minislot counter if the determined duration of the reception is below a certain threshold, and a transmission suppression unit for suppressing transmission in dynamic slots that follow a dynamic slot in which the determined duration of the reception is below a certain threshold. | 2011-07-07 |
| 20110164627 | THREE-STAGE ARCHITECTURE FOR ADAPTIVE CLOCK RECOVERY - An adaptive clock recovery (ACR) system has a first closed-loop control processor (e.g., a first proportional-integral (PI) processor) that processes an input phase signal indicative of jittery packet arrival times to generate a mean phase reference. The input phase signal is compared to the mean phase reference to generate delay-offset values that are indicative of the delay-floor corresponding to the packet arrival times. The mean phase reference and the delay-offset values are used to generate offset-compensated phase values corresponding to the delay-floor. The ACR system also has a second closed-loop control processor (e.g., a second PI processor) that smoothes the offset-compensated phase values to generate an output phase signal that can be used to generate a relatively phase stable recovered clock signal, even during periods of varying network load that adversely affect the uniformity of the packet arrival times. | 2011-07-07 |
| 20110164628 | RECEPTION APPARATUS AND METHOD, PROGRAM AND RECEPTION SYSTEM - Disclosed herein is a reception apparatus, including: a reception section configured to receive an OFDM (orthogonal frequency division multiplexed) signal obtained by modulating a common packet sequence configured from a packet common to a plurality of streams and a data packet sequence configured from packets individually unique to the plural streams; a buffer configured to accumulate packets of the common packet sequence and the data packet sequence obtained by demodulating the received OFDM signal; a retaining section configured to retain correction information for correcting out-of-synchronism between the common packet sequence and the data packet sequence obtained from particular packets of the common packet sequence and the data packet sequence upon reading out of the packets accumulated in the buffer; and a correction section configured to correct the out-of-synchronism of the packet which suffers from the out-of-synchronism of the packets based on the correction information retained in the retaining section. | 2011-07-07 |
| 20110164629 | METHOD FOR DATA TRANSMISSION VIA DATA NETWORKS - A method for data transmission via data networks, in particular via ethernet-based data networks, having at least two participants; the data networks have at least one topological real-time field and one topological non-real-time field, and data telegrams sent via the data networks have at least one real-time part and at least one non-real-time part. By a coupling unit, data telegrams from the non-real-time field which arrive inside the real-time part are delayed and transmitted to the non-real-time part. | 2011-07-07 |
| 20110164630 | ADAPTIVE CLOCK RECOVERY WITH STEP-DELAY PRE-COMPENSATION - An adaptive clock recovery (ACR) subsystem processes an input phase signal indicative of jittery packet arrival times to generate a relatively smooth and bounded output phase signal that can be used to generate a relatively stable recovered clock signal. The input phase signal is also processed to detect and measure step-delays corresponding, for example, to path changes in the network routing of the packets. Step-delay pre-compensation is performed, in which the input phase signal is phase-adjusted, upstream of the ACR subsystem, based on the sign and magnitude of each detected step-delay. As a result, the ACR subsystem is substantially oblivious to the existence of such step-delays. | 2011-07-07 |
| 20110164631 | Synchronous pumping of a wagon wheel optical cavity - A laser cavity structure is disclosed which pertains to laser resonator geometries possessing circular symmetry, such as in the case of disk or spherical lasers. The disclosed invention utilizes a very-high finesse Bragg reflector (VHF-BR) thin film reflectors of many layer pairs of very small refractive index difference, the VHF-BR deposited on a surface of revolution, thereby forming an optical cavity. These dielectric reflectors are disposed in such a way as to allow selection of preferred low order modes and suppression of parasitic modes while allowing a high cavity Q factor for preferred modes. The invention disclosed, in its preferred embodiments, is seen as particularly useful in applications requiring high efficiency in the production and coupling of coherent radiation. This is accomplished in a cavity design that is relatively compact and economical. | 2011-07-07 |
| 20110164632 | METHOD OF DRIVING A LASER DIODE - An ultrashort pulse/ultra-high power laser diode with a simple structure and configuration. The laser diode can be driven by a pulse current which is 10 or more times higher than a threshold current value. The width of the pulse current is preferably 10 nanoseconds or less, and the value of the pulse current is specifically 0.4 amperes or over. | 2011-07-07 |
| 20110164633 | WAVELENGTH-CONTROLLED SEMICONDUCTOR LASER DEVICE - A semiconductor laser device comprising a laser diode with an integrated photodiode, wherein one of the components of the laser diode with the integrated photodiode is also used for heating the laser diode. A simpler design of a wavelength-controlled semiconductor laser is thus obtained. | 2011-07-07 |
| 20110164634 | SEMICONDUCTOR LASER DEVICE - A semiconductor laser device includes: a semiconductor laser; a carrier that has a carrier side face facing with a longitudinal direction of the semiconductor laser, has a carrier edge area, and has a first bonding area that is the closest to a first end of the semiconductor laser and a second bonding area that is the closet to a second end of the semiconductor laser; a first thermal conduction portion that has a first thermal resistance and couples between the first bonding area and an outer connection terminal; and a second thermal conduction portion that has a second thermal resistance smaller than the first thermal resistance and couples between the second bonding area and an outer connection terminal, wherein the first end side of the semiconductor laser is closer to the carrier side face than the second end side of the semiconductor laser. | 2011-07-07 |
| 20110164635 | LASER DEVICE - A laser device includes a partially reflective mirror for separating laser light into monitor light and output light, a light output monitor device for detecting the intensity of the monitor light from the partially reflective mirror, a controller for controlling the intensity of the output light from the partially reflective mirror by controlling the output of a laser light source on the basis of a detection value of the light output monitor device, and a power meter device for detecting the intensity of the output light from the partially reflective mirror during a predetermined calibration time period, wherein the controller calibrates the output of the light output monitor device on the basis of a detection value of the power meter device. | 2011-07-07 |
| 20110164636 | LD-DRIVER IMPROVING FALLING EDGE OF DRIVING SIGNAL - An LD driver is disclosed, which improves the rising and falling times of the driving current for the LD. The LD driver includes an inverting amplifier, an emitter follower connected in down stream of the inverting amplifier, a driving transistor driven by the emitter follower, and a current-mirror circuit connected in series to the inverting amplifier. The mirror current generated from the current flowing in the inverting amplifier is provided to the output of the emitter follower served for discharging the input capacitance of the driving transistor. | 2011-07-07 |
| 20110164637 | GROUP-III NITRIDE SEMICONDUCTOR LASER DEVICE, AND METHOD FOR FABRICATING GROUP-III NITRIDE SEMICONDUCTOR LASER DEVICE - Provided is a group-III nitride semiconductor laser device with a laser cavity allowing for a low threshold current, on a semipolar surface of a support base in which the c-axis of a hexagonal group-III nitride is tilted toward the m-axis. First and second fractured faces | 2011-07-07 |
| 20110164638 | GROUP-III NITRIDE SEMICONDUCTOR LASER DEVICE, METHOD OF FABRICATING GROUP-III NITRIDE SEMICONDUCTOR LASER DEVICE, AND METHOD OF ESTIMATING DAMAGE FROM FORMATION OF SCRIBE GROOVE - In a group-III nitride semiconductor laser device, a laser structure includes a support base comprising a hexagonal group-III nitride semiconductor and having a semipolar principal surface, and a semiconductor region provided on the semipolar principal surface of the support base. An electrode is provided on the semiconductor region of the laser structure. An angle between a normal axis to the semipolar principal surface and the c-axis of the hexagonal group-III nitride semiconductor is in a range of not less than 45° and not more than 80° or in a range of not less than 100° and not more than 135°. The laser structure includes a laser stripe extending in a direction of a waveguide axis above the semipolar principal surface of the support base. The laser structure includes first and second surfaces and the first surface is a surface opposite to the second surface. The laser structure includes first and second fractured faces intersecting with an m-n plane defined by the m-axis of the hexagonal group-III nitride semiconductor and the normal axis, a laser cavity of the group-III nitride semiconductor laser device includes the first and second fractured faces, and each of the first and second fractured faces extends from an edge of the first surface to an edge of the second surface. The waveguide axis extends from one to the other of the first and second fractured faces. The laser structure has first and second recesses provided each at a portion of the edge of the first surface in the first fractured face. The first and second recesses extend from the first surface of the laser structure, and bottom ends of the first and second recesses are located apart from the edge of the second surface of the laser structure. The first recess has an end at the first surface and the second recess has an end at the first surface. A first distance between the laser stripe and the end of the first recess is smaller than a second distance between the laser stripe and the end of the second recess. | 2011-07-07 |
| 20110164639 | Light emitting and lasing semiconductor devices and methods - A two terminal semiconductor device for producing light emission in response to electrical signals, includes: a terminal-less semiconductor base region disposed between a semiconductor emitter region and a semiconductor collector region having a tunnel junction adjacent the base region; the base region having a region therein exhibiting quantum size effects; an emitter terminal and a collector terminal respectively coupled with the emitter region and the collector region; whereby application of the electrical signals with respect to the emitter and collector terminals, causes light emission from the base region. Application of the electrical signals is operative to reverse bias the tunnel junction. Holes generated at the tunnel junction recombine in the base region with electrons flowing into the base region, resulting in the light emission. The region exhibiting quantum size effects is operative to aid recombination. | 2011-07-07 |
| 20110164640 | OPTICAL SEMICONDUCTOR DEVICE - An optical semiconductor device comprises: a semiconductor light emitting element including semiconductor layers, including an active layer having a quantum well structure and epitaxially grown on a semiconductor substrate; and a submount on which the semiconductor light emitting element is mounted. Strain in the active layer after mounting the semiconductor light emitting element on the submount is larger than strain in the active layer after epitaxial growth of the active layer. The strain in the active layer during the epitaxial growth results in the surface of the semiconductor layers being a mirror surface. The strain in the active layer after the semiconductor light emitting element is mounted on the submount would not result in a mirror surface if present in the active layer at the epitaxial growth. | 2011-07-07 |
| 20110164641 | OPTICAL SEMICONDUCTOR DEVICE AND PUMPING LIGHT SOURCE FOR OPTICAL FIBER AMPLIFIER - A semiconductor device of the invention is formed so that n-type InP current blocking layers enter the inside of p-type InP cladding layers, i.e., the n-type current blocking layers ride over the upper part of the p-type InP cladding layers, so that a distance between the n-type InP current block layers composing a current blocking region is narrower than a width of the p-type cladding layers contacting with the n-type InP current blocking layers. Thereby, the semiconductor device whose leak current in the current blocking region may be reduced which permits high-output and high-temperature operations may be readily fabricated. | 2011-07-07 |
| 20110164642 | LASER DIODE WITH RIDGE WAVEGUIDE STRUCTURE AND METHOD FOR MANUFACTURING THE SAME - An LD with an improved heat dissipating function in the edge regions is disclosed. The LD provides the core region including the active layer and extending whole of the substrate, and the ridge waveguide structure on the core region that extends in a direction along which the light generated in the active layer is guided. The ridge waveguide structure is buried by a thick resin layer in both sides thereof, but the resin layer is removed in the edge regions close to respective facets of the LD. | 2011-07-07 |
| 20110164643 | SEMICONDUCTOR LASER DEVICE - According to one embodiment, a semiconductor laser device includes stacked layers and a light output layer. The stacked layers include an active layer. The light output layer is provided in contact with a light output end face of an optical cavity made of the stacked layers. The light output layer includes a dielectric layer having a non-amorphous film, and a conductor portion provided at least one of on a surface of the dielectric layer and inside the dielectric layer. | 2011-07-07 |
| 20110164644 | OPTOELECTRONIC SEMICONDUCTOR CHIP WITH GAS-FILLED MIRROR - An optoelectronic semiconductor chip includes a semiconductor body containing an active region, a mirror layer, and contact points arranged between the semiconductor body and the mirror layer and providing a spacing D between the semiconductor body and the mirror layer, whereby at least one cavity is formed between the mirror layer and the semiconductor body and the at least one cavity contains a gas. | 2011-07-07 |
| 20110164645 | Optoelectronic Device Having Light Source Emitter and Receiver Integrated - An optoelectronic device is provided. A light source emitter and a light source receiver are integrated in the device. The light source emitter is a Zn-diffused vertical cavity surface-emitting laser (VCSEL). The light source receiver is a uni-traveling-carrier photodiode (UTC-PD). With the VCSEL, a 10 Gb/s eye is opened under a small voltage and a small signal amplitude. With the UTC-PD, the 10 Gb/s eye is passed even under zero-bias. Thus, the optoelectronic device has a high speed and power consumption is saved. | 2011-07-07 |
| 20110164646 | Laser diode array, method of manufacturing same, printer, and optical communication device - A method of manufacturing a laser diode array capable of inhibiting electric cross talk is provided. The method of manufacturing a laser diode array includes a processing step of forming a peel layer containing an oxidizable material and a vertical resonator structure over a first substrate sequentially from the first substrate side by crystal growth, and then selectively etching the peel layer and the vertical resonator structure to the first substrate, thereby processing into a columnar shape, a peeling step of oxidizing the peel layer from a side face, and then peeling the vertical resonator structure of columnar shape from the first substrate, and a rearrangement step of jointing a plurality of vertical resonator structures of columnar shape obtained by the peeling step to a surface of a metal layer of a second substrate formed with the metal layer on the surface. | 2011-07-07 |
| 20110164647 | EXCIMER LASER DEVICE - An excimer laser device capable of suppressing deterioration of optical elements provided in a laser chamber even if output energy per pulse is increased more than the conventional level, in which a width of a laser beam applied to the optical elements provided in the laser chamber is enlarged so as to reduce the energy density of the laser beam within such a range that a laser output of no less than a desired level is obtained. | 2011-07-07 |
| 20110164648 | Alleviation Of Laser-Induced Damage In Optical Materials By Suppression Of Transient Color Centers Formation And Control Of Phonon Population - Laser-induced damage in an optical material can be mitigated by creating conditions at which light absorption is minimized. Specifically, electrons populating defect energy levels of a band gap in an optical material can be promoted to the conduction band—a process commonly referred to as bleaching. Such bleaching can be accomplished using a predetermined wavelength that ensures minimum energy deposition into the material, ideally promoting electron to just inside the conduction band. In some cases phonon (i.e. thermal) excitation can also be used to achieve higher depopulation rates. In one embodiment, a bleaching light beam having a wavelength longer than that of the laser beam can be combined with the laser beam to depopulate the defect energy levels in the band gap. The bleaching light beam can be propagated in the same direction or intersect the laser beam. | 2011-07-07 |
| 20110164649 | LASER SYSTEM HAVING SWITCHABLE POWER MODES - A pump module comprises a power source, a plurality of laser diodes, a controller and light combining optics. The laser diodes each have an activated state and a deactivated state. The laser diodes receive current from the power source and output light when in the activated state and do not receive current from the power source when in the deactivated state. The controller switches the plurality of laser diodes from a first power mode, in which a first subset of the laser diodes is in the activated state, to a second power mode, in which a second subset of the laser diodes is in the activated state, responsive to a power mode setting. The light combining optics are configured to combine the light from the activated laser diodes and output the combined light as pump energy. | 2011-07-07 |
| 20110164650 | ELECTROMAGNETIC INDUCTION MELTING FURNACE TO CONTROL AN AVERAGE NOMINAL DIAMETER OF THE TIB2 CLUSTER OF THE AL-TI-B ALLOY - An electromagnetic induction melting furnace to control an average nominal diameter of the TiB | 2011-07-07 |
| 20110164651 | OPEN-LOOP VERTICAL DRYWELL GRADIENT CORRECTION SYSTEM AND METHOD - A system and method are disclosed for controlling a drywell including a receiver having upper and lower ends with the lower end being more insulated than the upper and having a temperature sensor in thermal contact therewith. Upper and lower heaters are in thermal contact with the upper and lower ends respectively. A controller includes an integrated circuit having a temperature sensor. A reading from the integrated circuit is used to control power to the upper heater and reduce a temperature gradient between the upper and lower ends of the receiver. | 2011-07-07 |
| 20110164652 | Differential Thermoelectric Cooler Calorimeter - A calorimeter for use in measuring a sample is provided. The calorimeter may include a sample chamber for housing the sample therein. A separate reference chamber may not be present in the calorimeter. The calorimeter may also have a sample thermoelectric cooler in which heat from the sample chamber is transferred to the sample thermoelectric cooler. A reference thermoelectric cooler for use in detecting thermal noise may also be present, and outputs from the sample thermoelectric cooler and the reference thermoelectric cooler may be used in a control equation to determine the heat output of the sample. | 2011-07-07 |
| 20110164653 | THERMAL INSPECTION SYSTEM AND METHOD INCORPORATING EXTERNAL FLOW - A thermal inspection method is disclosed. The inspection method includes disposing a component in a wind tunnel configured to create a predetermined Mach number distribution for an external surface of the component. A gas is supplied at a known temperature T into the wind tunnel to create an external flow of gas over the external surface of the component in accordance with the predetermined Mach number distribution. The inspection method further includes directly or indirectly measuring one or more external surface temperatures of the component to generate an external surface temperature distribution for the external surface of the component and using the external surface temperature distribution to perform a quality control inspection of the component. A thermal inspection system is also provided. | 2011-07-07 |
| 20110164654 | EAR THERMOMETER - The present invention provides an ear thermometer that irradiates liquid crystal with backlight without increasing a battery capacity, to make a body temperature displayed with the liquid crystal easily visible even in a dark place. An MCU | 2011-07-07 |
| 20110164655 | Thermal Sensor, Non-Contact Thermometer Device, and Non-Contact Temperature Measurement Method - A thermal sensor that includes a ceramic body formed of NTC thermister ceramic, heat sensing part electrodes, temperature compensation part electrodes, external electrodes, and a cavity. A heat sensing part, which is the surface layer of the ceramic body, is heated by, for example, radiant heat transfer, reducing the resistance value of a thermistor ceramic layer between the heat sensing part electrodes. Since the heat of the heat sensing part of the ceramic body is insulated by the cavity and thus prevented from diffusing, the heat capacity of the heat sensing unit is reduced, obtaining high sensitivity and high responsiveness. | 2011-07-07 |
| 20110164656 | SYSTEMS AND METHODS FOR DISSIPATING HEAT GENERATED DURING AN ELECTRICAL MEASUREMENT - Systems and methods for dissipating heat generated during an electrical function are disclosed. In particular, the disclosed systems and methods can be used for dissipating heat generated during low impedance measurement on a multimeter. In some embodiments, the multimeter can include a first thermistor coupled in series with a resistor in a measurement path, a second thermistor, and a switch coupled to the measurement path and the second thermistor for selectively including the second thermistor in the measurement path during a low impedance measurement. | 2011-07-07 |
| 20110164657 | OBJECT LOCATION AND REPORTING SYSTEM FOR HARSH RF ENVIRONMENTS - A system verifies torquing of pressure fittings in an aircraft wheel well. A strain gauge and an ultra-wide band (UWB) pulse signal generator are placed on a wrench used to torque the fittings. The strain senses the torque applied by the wrench, and the pulse signal generator generates UWB pulse signals indicating the location of the fitting and the torque applied to the fitting. The pulse signals are received by UWB radios within the wheel well, which generate location measurements based on the received pulse signals. A processor automatically calculates the location of the fitting being torqued based on the location measurements, and a display produces a 3-dimensional image of the fittings and their torque status. | 2011-07-07 |
| 20110164658 | METHOD FOR SPREADING THE SPECTRUM OF A NARROWBAND SIGNAL - A method for spreading a spectrum of a narrowband signal, e.g. a monochromatic optical signal or a radiofrequency carrier. The method uses a phase modulation using a modulation signal that includes a plurality of sinusoidal components, the plurality including a component at a fundamental frequency and at least one component at a frequency that is a harmonic of the fundamental frequency, the sinusoidal components being synchronous and affected with phases respectively equal to consecutive multiples of π/2. | 2011-07-07 |
| 20110164659 | CLOSED-LOOP TRANSMISSION POWER CONTROL METHOD, BASE STATION APPARATUS AND TERMINAL - In a closed-loop TPC for a channel using a wireless resource, to which frequency hopping is applied, a high quality reception is achieved for all RBs without applying another technique to each RB. This transmission power control method, in a mobile communications system that transmits signals by frequency hopping in a plurality of resource blocks, includes a transmission power control method that transmission-power controls a channel in a closed loop using a wireless resource to which frequency hopping is applied, measures a reception channel quality of received signals for each resource block (RB | 2011-07-07 |
| 20110164660 | RADIO BASE STATION ACCOMMODATING METHOD AND NETWORK DEVICE - A radio base station accommodating method according to the present invention includes step A of causing a network device | 2011-07-07 |
| 20110164661 | Insertion of Signals by an Intermediate Device - A method is performed by an intermediate device in a multi-hop wireless network. The method includes receiving a transmission to forward to another device and synchronizing with the transmission based on a format of the transmission. The method further includes selecting a resource portion of the transmission based on information included in the transmission or information previously received, and inserting a signal in the selected resource portion of the transmission. The method also includes forwarding the transmission that includes the signal to the other device. | 2011-07-07 |
| 20110164662 | MOBILE COMMUNICATIONS SYSTEM, COMMUNICATIONS APPARATUS, AND COMMUNICATIONS METHOD - A communications apparatus includes a receiving unit which receives a data channel for each predetermined transmission period; a determining unit which determines, for each data channel, acknowledgement information which indicates an acknowledgement or a non-acknowledgement; a generating unit which generates a control channel including the acknowledgement information; and a transmitting unit which transmits the control channel. For first and second data channels received during at least successive first and second transmission periods, the first and second acknowledgement information is provided. The second control channel which includes both the first and the second acknowledgement information which includes both the first and the second acknowledgement information is transmitted after a first control channel which includes the first acknowledgement information. | 2011-07-07 |
| 20110164663 | A METHOD AND CIRCUIT FOR FRACTIONAL RATE PULSE SHAPING - A method and system for fractionally converting sample rates. Fractional rate conversion for a transmit path of a transceiver is achieved by upsampling an input signal having a first sample rate by a first integer factor, removing aliasing resulting from the upconversion process, and then downsampling the intermediate signal by a second integer factor to provide a final signal having a second sample rate. The first factor and the second factor are selected to obtain a desired output sample rate that is a fraction of the sample rate of the input signal. | 2011-07-07 |
| 20110164664 | RLC Segmentation for Carrier Aggregation - Systems, devices, methods and software according to these exemplary embodiments provide for reducing the number of different sequence numbers used to transmit radio link control, RLC, data blocks to avoid, for example, sequence number stalling. This can be accomplished by, for example, transmitting or receiving RLC protocol data unit, PDU, segments as the initial or original instance of data communication. | 2011-07-07 |
| 20110164665 | TRANSMITTER WITH INTERNAL COMPENSATION FOR VARIANCE IN DIFFERENTIAL DATA LINE IMPEDANCE - In at least some embodiments, an electronic device includes a first data endpoint and differential data transceiver coupled to the first data endpoint. The differential transceiver provides a communication interface between the first data endpoint and a second data endpoint. The differential transceiver compensates for variations in a series impedance and/or a parallel impedance for a differential data line between the differential transceiver and the second data endpoint. | 2011-07-07 |
| 20110164666 | Low-1/f-Noise Local Oscillator for Non-Overlapping Differential I/Q Signals - The present invention relates to a circuit arrangement ( | 2011-07-07 |
| 20110164667 | Method and System for the Serial Transmission of Data - There is provided a system for the bidirectional synchronous transmission of data between a device ( | 2011-07-07 |
| 20110164668 | METHOD FOR BUILDING SETS OF MOBILE STATIONS IN MIMO SYSTEMS, CORRESPONDING MOBILE STATION, BASE STATION, OPERATION AND MAINTENANCE CENTRE AND RADIO COMMUNICATION NETWORK - The invention relates to a method for building sets of mobile stations in a radio communication network (RCS | 2011-07-07 |
| 20110164669 | Systems and Methods for Determining Noise Components in a Signal Set - Various embodiments of the present invention provide systems and methods for estimating noise components in a received signal set. For example, one embodiment of the present invention provides a noise estimation circuit that includes a data detector circuit and a noise component calculation circuit. The data detector circuit receives a series of data samples and provides a detected output, and the noise component calculation circuit provides an electronics noise power output and a media noise power output each calculated based at least in part on the detected output and the series of data samples. | 2011-07-07 |
| 20110164670 | POWER LINE COMMUNICATION SYSTEM - The present invention relates to a communication system comprising a transmitter and receiver in communication for transmitting signals through one or more communications channels, wherein at least one of the transmitter and the receiver each comprise a quality measure, which contributes to an overall quality measure for the system and wherein the or each communications channel comprises a plurality of sub-bands between at least two nodes, wherein the plurality of sub-bands each having a specific maximum power spectral densities (PSDs) and wherein one or more sub-bands between the transmitter and the receiver are identified as having a higher maximum PSD than other sub-bandsand wherein the PSD of the one or more identified sub-bands is reduced in a predetermined manner to thereby increase the overall quality measure for the system. | 2011-07-07 |
| 20110164671 | RECEIVER DEVICE, INTEGRATED CIRCUIT, RECEIVING METHOD, AND RECEIVING PROGRAM - A wideband carrier frequency error calculator that, for each of a plurality of location patterns, calculates a cumulative value through a predetermined process performed on signals output by an orthogonal transformer for a plurality of sub-carrier positions determined according to a given location pattern while simultaneously shifting the signals output therefrom by one sub-carrier unit along the carrier direction and that also calculates wideband carrier frequency error according to carrier direction discrepancies calculated as maximum values within the cumulative value, and a carrier frequency error corrector that applies corrections to carrier frequency discrepancies according to the wideband carrier frequency error so calculated. | 2011-07-07 |
| 20110164672 | Orthogonal Multiple Description Coding - In one aspect, an orthogonal multiple description encoder comprises orthogonal multiple description generation circuitry configured to produce multiple descriptions of a given signal by processing the signal using respective ones of a plurality of orthogonal matrices. Each of the multiple descriptions is generated as a function of the signal and a corresponding one of the plurality of orthogonal matrices. Other aspects include an orthogonal multiple description decoder, orthogonal multiple description encoding and decoding methods, and associated computer program products. | 2011-07-07 |
| 20110164673 | Preserving Captioning Through Video Transcoding - Methods of preserving captioning information in an input video stream through transcoding of the input video stream include extracting caption data from the input video stream, translating the caption data into at least one output caption format, packaging the translated caption data into data packets for insertion into a video stream, synchronizing the packaged caption data with a transcoded version of the input video stream, receiving a preliminary output video stream that is a transcoded version of the input video stream, and combining the packaged caption data with the preliminary output video stream to form an output video stream. Related systems and computer program products are also disclosed. | 2011-07-07 |
| 20110164674 | MULTIMEDIA COMMUNICATION SYSTEM, AND TELEVISION DEVICE AND CORE MODULE THEREOF - A multimedia communication system includes: an intercom device operable for picking up audio information, and for performing encoding and modulation processes upon the audio information so as to generate a modulated signal; and a multimedia device coupled to the intercom device for receiving the modulated signal therefrom, and operable for performing demodulation and decoding processes upon the modulated signal so as to generate a decoded audio signal, for generating an output audio signal from external audio information contained in an external input signal when the decoded audio signal is not received thereby, for generating the output audio signal from at least the decoded audio signal when the decoded audio signal and the external input signal are received thereby, and for audible reproduction of the output audio signal. | 2011-07-07 |
| 20110164675 | DIGITAL PLL CIRCUIT AND COMMUNICATION DEVICE - In a digital PLL circuit outputting a clock signal with a frequency obtained by multiplying a frequency of a reference signal by a frequency command word (a frequency ratio), an RPA serially adds a frequency command word containing a fractional component. An output of the RPA is input to a minute phase error generator. The phase error generator generates a plurality of threshold values close to an actual amplitude value of the reference signal based on the fractional portion of the serially added value of the frequency command word, calculates the amplitude value of the reference signal and a phase error of the reference signal corresponding to the amplitude value based on the threshold values, and calculates a minute phase error between the reference signal and the output clock. | 2011-07-07 |
| 20110164676 | DISTRIBUTION SERVER, DISTRIBUTION SYSTEM, METHOD, AND PROGRAM - Disclosed is a distribution server that receives as an input a compressed/encoded stream or packet of a moving image or a still image, performs conversion that enhances resolution and image quality of the input, and distributes the converted stream or packet to a mobile terminal via a mobile network. | 2011-07-07 |
| 20110164677 | Complexity Allocation for Video and Image Coding Applications - Coding method complexity types are assigned to video for combinations of coding decision levels associated with a sequence of pictures, a group of pictures, a scene, a region of the scene or picture, a block or macroblock. Multiple coding units are encoded as a function of complexity and determined from the coding decision levels. A first coding decision level is associated with determining a first complexity and a first coding method type for the sequence of pictures. A second coding decision level is associated with determining a second complexity and a second coding method type for the pictures or scene. The picture or sequence includes the coding units. A third coding decision level is associated with determining a third complexity and a third coding method type for the coding units. | 2011-07-07 |
| 20110164678 | MOVING IMAGE ENCODING APPARATUS - According to one embodiment, a moving image encoding apparatus includes a calculation unit, a selection unit, and a compression unit. The calculation unit calculates, for each unit of processing, amounts of code using plural variable length compression modes, the variable length compression modes having compression rates different from each other. The selection unit selects a compression mode in which an accumulated amount of code is smaller than or equal to a predetermined amount of code, the compression mode being selected from the variable length compression modes and a fixed length compression mode on the basis of the amounts of code calculated for the variable length compression modes and an amount of code obtained when the image data is compressed by the fixed length compression mode. The compression unit compresses the unit of processing of image data by the compression mode selected and generates compressed data. | 2011-07-07 |
| 20110164679 | MOVING IMAGE CODING METHOD, MOVING IMAGE CODING APPARATUS, PROGRAM, AND INTEGRATED CIRCUIT - The moving image coding method includes: changing at least one of a resolution and a frame rate of an input image, according to a degree of difficulty in coding the input image, and outputting an image to be coded (S | 2011-07-07 |
| 20110164680 | METHOD OF EFFECTIVELY PREDICTING MULTI-LAYER BASED VIDEO FRAME, AND VIDEO CODING METHOD AND APPARATUS USING THE SAME - A method and apparatus are provided for effectively predicting a video frame that use all of the advantages of an intra mode and an intra BL mode in multi-layer structure based-video coding. The method includes reconstructing the intra block of a lower layer using the previously reconstructed first neighboring blocks of the intra block; subtracting the first neighboring blocks from previously stored the second neighboring blocks of an upper layer corresponding to the first neighboring blocks; creating a differential predicted block based on a predetermined intra prediction mode by performing intra prediction using virtual differential neighboring blocks that are created as a result of the subtraction; adding the differential predicted block and the reconstructed intra block; and subtracting a predicted block, which is created as a result of the addition, from a block of the upper layer corresponding to the intra block. | 2011-07-07 |
| 20110164681 | MOTION PICTURE ENCODING DEVICE AND MOTION PICTURE DECODING DEVICE - When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on a encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly. | 2011-07-07 |
| 20110164682 | SYSTEMS AND METHODS FOR VISUAL SIGNAL EXTRAPOLATION OR INTERPOLATION - The present invention relates to computer-based systems and methods for visual signal extrapolation or interpolation based on statistic similarity estimation. Specifically, a first and a second reference pictures are provided, and motion estimation is conducted on the first and second reference pictures to generate motion vectors indicative of movement of at least one of the first and second reference pictures in relation to the other. Subsequently, an estimate picture is generated by extrapolation or interpolation from the first and/or the second reference picture using the motion vectors, followed by optional refinement of the estimate picture. Statistic similarity estimation is used either in motion estimation or in refining the estimate picture, or a combination of both, so as to provide improved visual signals. | 2011-07-07 |
| 20110164683 | SCALABLE VIDEO STREAM DECODING APPARATUS AND SCALABLE VIDEO STREAM GENERATING APPARATUS - A scalable video stream generating apparatus according to the present invention sorts encoded images into a plurality of encoded-image streams based on whether or the encoded images are to be used as reference frames, and assigns different identifiers to the plurality of encoded-image streams. A scalable video stream decoding apparatus according to the present invention (i) receives a plurality of encoded-image stream generated by the scalable video stream generating apparatus according to the present invention, (ii) reorders, in order of decoding, encoded images included in at least one encoded-image stream extracted based on identifiers assigned to the plurality of encoded-image stream, and (iii) decodes the encoded images thus reordered. Thus, it is possible to provide a scalable video stream system having a simple arrangement. | 2011-07-07 |
| 20110164684 | IMAGE PROCESSING APPARATUS AND METHOD - The present invention relates to an image processing apparatus and method capable of suppressing an increase in the number of computations. | 2011-07-07 |
| 20110164685 | ENTROPY DECODER WITH ENTROPY DECODING INTERFACE AND METHODS FOR USE THEREWITH - An entropy decoding module can be used in a video decoder that decodes a stream of video data from a first buffer. An entropy decoding interface includes a second buffer. A load controller automatically fetches the video data from the first buffer for storage in the second buffer. A search engine searches the video data stored in the second buffer for at least one bit pattern. A processing module retrieves the video data from the second buffer for entropy decoding. | 2011-07-07 |
| 20110164686 | METHOD FOR DELIVERY OF DIGITAL LINEAR TV PROGRAMMING USING SCALABLE VIDEO CODING - A delivery arrangement for linear TV programs uses SVC in which encoded enhancement layer video data is pre-downloaded to a STB and encoded base layer video data is live broadcasted to the STB at viewing time Pre-downloading of the enhancement layer data is done during off-peak viewing periods taking advantage of an abundance of network bandwidth while reducing bandwidth demand during peak viewing periods by broadcasting only the base layer data The enhancement layer data is downloaded in a modified MP4 file and stored in the STB for later synchronization and combination with the base layer, which is sent to the STB in a real time protocol (RTP) stream The combined base and enhancement layer data is SVC decoded for presentation to the enduser The pre-downloaded enhancement video file may be provided with digital rights management (DRM) protection, thereby providing conditional access to the enhanced video | 2011-07-07 |
| 20110164687 | Encoding and Decoding Methods and Systems - Methods and systems enable uncompressed source data, corresponding to previously-compressed data, to be manipulated or otherwise modified, prior to being rendered by a rendering application. For example, audio data can be modified to include additional audio content, and/or video data can be modified to include additional video content. Accordingly, when the modified or manipulated source data is rendered by the rendering application, it can contain additional information that was not part of the previously-compressed data. | 2011-07-07 |
| 20110164688 | DTV TRANSMITTING SYSTEM AND RECEIVING SYSTEM AND METHOD OF PROCESSING BROADCAST SIGNAL - A DTV transmitting system includes a pre-processor, a block processor, and a trellis encoder. The pre-processor pre-processes enhanced data by expanding the enhanced data at an expansion rate of 1/H. The block processor includes a first converter, a symbol encoder, a symbol interleaver, and a second converter. The first converter converts the expanded data into symbols. The symbol encoder encodes each valid enhanced data bit in the symbols at an effective coding rate of 1/H. The symbol interleaver interleaves the encoded symbols, and the second converter converts the interleaved symbols into enhanced data bytes. The trellis encoder trellis-encodes the enhanced data outputted from the block processor. | 2011-07-07 |
| 20110164689 | METHOD AND ASSOCIATED DEVICE FOR GENERATING VIDEO - The present invention relates to a method for generating a video specific for a terminal and/or user. The method comprises the steps of obtaining payload-dependent header information for the video and subsequently generating a payload of the video. | 2011-07-07 |
| 20110164690 | METHODS AND SYSTEMS FOR LOCATION ESTIMATION - A receiver system and method for determining the location of a device in a wireless network having a plurality of transmitters is provided. The method includes receiving a signal at the device, transforming the received signal into a time-domain signal having a characteristic, and computing a range of the device from each of the plurality of transmitters based on the characteristic. Additionally, the method includes determining the location of the device based on the computed ranges. In certain embodiments, the characteristic may be a time of arrival, time difference of arrival, or a signal strength, and the wireless network is a DTV broadcasting network. | 2011-07-07 |
| 20110164691 | CLOSED-LOOP TRANSMISSION FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS - A method and apparatus for providing channel feedback is provided herein. During operation a covariance matrix at time t (R) is calculated by the mobile as a function of a received downlink signal. In order to reduce overhead, R is normalized and quantized by the mobile using multiple codebook entries plus at least one constant for quantization. The mobile then transmits the normalized and quantized covariance matrix back to the base station as bit values indicating the selected entries from the codebook plus bit values corresponding to the at least one constant. The base unit then uses the covariance matrix estimate to determine appropriate channel beamforming weights, and instructs transmit beamforming circuitry to use the appropriate weights. | 2011-07-07 |
| 20110164692 | Apparatus and method for converting protocol interface - An apparatus and method for converting a protocol interface are provided. A protocol converter may analyze a protocol of protocol data, and may sequentially output a plurality of sub-data of the input protocol data according to types of the plurality of sub-data and a plurality of phase information representing the types of the plurality of sub-data. A phase channel line may transmit phase information received from the protocol converter among the plurality of phase information. A data channel line may simultaneously transmit the received phase information and a sub-data corresponding to the received phase information. | 2011-07-07 |
| 20110164693 | INTERFACE CIRCUIT - An interface circuit including an LSI ( | 2011-07-07 |
| 20110164694 | Communication system, communication device and communication method - A communication system includes a first communication device that transmits transmission data containing user data and control data, and a second communication device that receives the transmission data from the first communication device. The second communication device includes a temporary storing unit that temporarily stores therein the received transmission data, and a space-insufficient-information transmitting unit that transmits, when an amount of the transmission data stored in the temporary storing unit exceeds a first threshold, space insufficient information indicating that available storage space of the temporary storing unit is insufficient to the first communication device. The first communication device includes a transmission control unit that transmits, when receiving the space insufficient information from the second communication device, transmission data excluding the user data from the transmission data to the second communication device, and that resumes, when receiving space-insufficient dissolution information from the second communication device, transmission of the user data. | 2011-07-07 |
| 20110164695 | METHOD AND SYSTEM FOR SELECTING A USER GROUP USING HYBRID-QUANTIZED CHANNEL DIRECTION INFORMATION FEEDBACKS FROM MIMO CAPABLE MOBILE DEVICES - A mobile device receives beams orthogonal to a single user downlink MIMO channel associated with a selected first user in a user group. The mobile device estimates relative channel direction information with respect to the received beams for an associated single user downlink MIMO channel. The estimated relative channel direction information is hybrid-quantized to generate a semi-orthogonal matrix transmitted to the base station over a finite-rate feedback link. The mobile device receives downlink data transmission according to the hybrid-quantized relative channel direction information. The base station receives multiple semi-orthogonal matrices from remaining mobile devices to generate a semi-orthogonal group for the selected first user. A mobile device having the strongest quantized projected channel capacity is selected from the generated semi-orthogonal group as a second user. Mutual channel capacity information for the selected first and second users is determined to schedule corresponding downlink data transmissions, accordingly. | 2011-07-07 |
| 20110164696 | MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) COMMUNICATION SYSTEM USING A CODEBOOK AND METHOD OF DESIGNING THE CODEBOOK - Provided is a multiple input multiple output (MIMO) communication system using a codebook. A transmitter and a receiver included in the MIMO communication system may generate a codebook having a different size for each eigenvector of a channel matrix or a channel covariance matrix, based on eigenvalues of the channel matrix or the channel covariance matrix. | 2011-07-07 |
| 20110164697 | METHODS AND DEVICES FOR SPATIAL CODING - Embodiments of the invention relates to a method in a controller node for distributing code text of a joint spatial coding in a communications network. The communications network comprises at least two communication nodes each comprising at least one transmit antenna. The method comprises to joint spatial code ( | 2011-07-07 |
| 20110164698 | Systems and methods with non symmetric OFDM modulation - Non-symmetric OFDM system may employ different spectrum bandwidths, different FFT sizes, different cyclic prefixes, different symbol duration and different modulation schemes in two ends of the communication. The transmission spectrum can be one contiguous piece or multiple disjoint pieces by modulating zeros to those subcarriers nearby the spectrum boundaries. Transmitter and receiver maybe designed separately and integrated together via a control module to form a transceiver. | 2011-07-07 |
| 20110164699 | METHOD AND SYSTEM FOR AN ITERATIVE MULTIPLE USER MULTIPLE INPUT MULTIPLE OUTPUT (MU-MIMO) COMMUNICATION SYSTEM - A method and system for an iterative multiple user multiple input multiple output (MU-MIMO) communication system are presented. In one aspect, a current iteration beamforming matrix may be generated based on a current iteration matched filter matrix for each of a plurality of user devices. A subsequent iteration matched filter matrix may be generated based on the current iteration beamforming matrix for each of the plurality of user devices. A subsequent iteration beamforming matrix may be generated based on the subsequent iteration matched filter matrix for each of the plurality of user devices. A succeeding iteration beamforming matrix may be generated based on an iteration count value and/or based on one or more difference values. The one or more difference values may be computed based on the plurality of subsequent iteration beamforming matrices and the plurality of current iteration beamforming matrices generated for the plurality of user devices. | 2011-07-07 |
| 20110164700 | CLOSED FORM SINGULAR VALUE DECOMPOSITION - The subject matter disclosed herein provides methods and apparatus for determining a singular value decomposition, providing feedback from a client station to a base station, and closed loop operation of a wireless system implementing multiple-input multiple-output (MIMO). The method may include determining one or more singular vectors using a closed form singular value decomposition. The one or more determined singular vectors may be provided to a precoder at the base station as feedback. The method may include aligning a phase of one or more singular vectors. The method may also include determining, at a client station, a plurality of singular vectors for channels used in a MIMO transmission from a base station to a client station. The client station may provide an indication to the base station regarding whether to use a singular value decomposition or a uniform channel decomposition. Related systems, apparatus, methods, and/or articles are also described. | 2011-07-07 |
| 20110164701 | SYSTEMS AND METHODS OF ENCODING USING A REDUCED CODEBOOK WITH ADAPTIVE RESETTING - To feedback MIMO channel conditions, a codeword from a codebook is selected. To reduce signalling, the codewords are organized into codeword subsets. The receiver signals an index of a codeword into a current codeword subset previously made known to the transmitter. The current codeword subset is adaptively selected based on a threshold criterion. For example, if the best codeword from the current codeword subset is not sufficiently similar to the best codeword in the full codebook, a switch in the codeword subset is made. | 2011-07-07 |
| 20110164702 | POLAR TRANSMITTER - The present application relates to at least one digitally controlled oscillator and a data modulation device. More particularly, the digital polar transmitter comprises at least one digitally controlled oscillator configured to generate at least one frequency. The digital polar transmitter comprises a data modulation device, wherein the data modulation device comprises at least one data input terminal, at least one output terminal, and at least one frequency input terminal, wherein the output terminal is connected to the digitally controlled oscillator. The digital polar transmitter comprises a phase measuring device configured to measure phase information from the output signal of the data modulation device for every frequency sample. The digital polar transmitter comprises a phase error detecting device configured to detect a phase error at least depending on the measured phase information, wherein the phase error detecting device is configured to apply the detected phase error to the output signal of the data modulation device. | 2011-07-07 |
| 20110164703 | RECEPTION APPARATUS AND METHOD, PROGRAM AND RECEPTION SYSTEM - Disclosed herein is a reception apparatus, including: a reception section configured to receive an OFDM (Orthogonal Frequency Division Multiplexed) signal obtained by modulating a common packet sequence configured from a packet common to streams and a data packet sequence configured from packets individually unique to the streams; a time counting section configured to count, using predetermined time indicated by additional information added to particular packets of the common and data packet sequences obtained by demodulating the received OFDM signal as a reference, elapsed time after the predetermined time; a detection section configured to compare the counted time and time indicated by the additional information added to the particular packets of the common and data packet sequences to detect a displacement in the time direction between the packets; and a correction section configured to correct the displacement between the packets of the common and data packet sequences in the time direction. | 2011-07-07 |
| 20110164704 | Amplitude Modulation Demodulating Circuit and Method Thereof - An amplitude modulation (AM) demodulating circuit applied to a radio frequency identification (RFID) system attenuates carrier signals by a notch filter to increase a signal-to-carrier ratio and to reduce complexity and cost of circuit design. The AM demodulating circuit includes an envelope detector, a notch filter, a low-pass filter, and a comparing circuit. The envelope detector performs envelope detection on an AM signal modulated by a carrier frequency to generate an envelope signal. The notch filter filters the envelope signal to generate a first filtered signal, and a zero point of the notch filter corresponds to the carrier frequency of the AM signal. The low-pass filter filters the first filtered signal to generate a second filtered signal, and the carrier frequency of the AM signal corresponds to a stop band of the low-pass filter. The comparing circuit converts the second filtered signal to a digital signal according to a level value. | 2011-07-07 |
| 20110164705 | BIT MAPPING SCHEME FOR AN LDPC CODED 32APSK SYSTEM - A digital communication system, having a transmitter to transmit a digital signal; and a receiver to receive the digital signal; wherein the digital signal utilizes a 32APSK system with FEC coding, and the signal is bit-mapped using gray mapping, and bits of the digital signal are ordered based on the values of a log likelihood ratio from a communications channel. | 2011-07-07 |
| 20110164706 | RECEPTION APPARATUS AND METHOD, PROGRAM AND RECEPTION SYSTEM - Disclosed herein is a reception apparatus, including: a reception section adapted to receive an OFDM (Orthogonal Frequency Division Multiplexing) signal obtained by modulating a first frame configured so as to include packets of a common packet sequence configured from a packet common to a plurality of streams and a second frame configured so as to include packets of a data packet sequence configured from packets individually unique to the plural streams; an acquisition section adapted to acquire specification information for specifying a combination of a first frame and a second frame obtained by demodulating the received OFDM signal; and a detection section adapted to detect a combination of a packet of the common packet sequence which configures the first frame and a packet of the data packet sequence which configures the second frame, whose combination is specified based on the acquired specification information. | 2011-07-07 |
| 20110164707 | UTILIZATION OF A KNOWN PORTION OF A PAYLOAD TO DECODE A PAYLOAD HAVING A KNOWN AND AN UNKNOWN PORTION - A method, an apparatus, and a computer program product for wireless communication are provided in which a payload is received, the payload having a known portion and an unknown portion. The payload is decoded through correlation, where correlation includes the generation of a plurality of payload hypothesis based on possible combinations of the unknown portion and using the known portion and the generation of a metric value based on each of the plurality of payload hypothesis. The received payload is selected through a determination of the payload hypothesis having a largest generated metric value. | 2011-07-07 |
| 20110164708 | SYMBOL TIMING METHODS AND APPARATUSES USING THE SAME IN MULTI-CARRIER RECEIVING SYSTEMS - A symbol timing method for a multi-carrier system is provided, including: receiving an input symbol; executing a correlation operation by using a first summation window with a size smaller than a duplicated data to generate a first characteristic signal; determining a first search region according to a first predetermined threshold and the first characteristic signal and searching a local peak value in the first search region; locating a right edge point of the first characteristic signal according to a difference value and the local peak value; obtaining a coarse symbol timing position for a following input symbol according to a predetermined movement and the right edge point; and outputting the coarse symbol timing position to a signal transformation module, wherein signal transformation is executed by the signal transformation module according to the coarse symbol timing position. | 2011-07-07 |
| 20110164709 | APPARATUS AND METHOD FOR ESTIMATING CHANNEL IN BROADBAND WIRELESS COMMUNICATION SYSTEM - An apparatus and method for channel estimation decrease overhead and hardware complexity while supporting both Wiener-type channel estimation and Finite Impulse Response (FIR) filtering/Infinite Impulse Response (IIR) filtering in a wireless communication system. The apparatus includes a storage unit for storing coefficient sets for a plurality of channel estimation types. A controller selects one of the plurality of channel estimation types according to at least one of a type of a pilot signal and a reliability value of a channel parameter. An N-tap filter, including N multipliers and (N−1) adders, determines channel estimation values of data tones by using the coefficient sets for the selected channel estimation type. | 2011-07-07 |
| 20110164710 | TRANSMISSION TIMING ADJUSTMENT IN RADIO SYSTEMS - A method of adjusting the transmission time of a signal in a radio link, the method being performed by a transmitter configured to transmit the signal over the radio link to a receiver and comprising the steps of ascertaining an accuracy that the receiver assumes for the transmitter's clock, calculating an assumed drift of the transmitter's clock based on the assumed accuracy of that clock and the time since a previous correlation between the transmitter's clock and the receiver's clock; and transmitting the signal at a time dependent on the assumed drift. | 2011-07-07 |
| 20110164711 | DECODER AND METHOD FOR ADAPTIVELY GENERATING A CLOCK WINDOW - A decoder and related method adaptively generate a clock window. A falling edge of a horizontal synchronization signal is detected, and the time difference between an actual frame code and a predefined frame code is determined. The beginning and the end of the clock window are then adaptively determined based on the falling edge and the time difference, such that symbol timing recovery through received clock run-in signals may be performed within the generated clock window. | 2011-07-07 |
| 20110164712 | Standing wave nuclear fission reactor and methods - Disclosed embodiments include nuclear fission reactor cores, nuclear fission reactors, methods of operating a nuclear fission reactor, and methods of managing excess reactivity in a nuclear fission reactor. | 2011-07-07 |
| 20110164713 | Standing wave nuclear fission reactor and methods - Disclosed embodiments include nuclear fission reactor cores, nuclear fission reactors, methods of operating a nuclear fission reactor, and methods of managing excess reactivity in a nuclear fission reactor. | 2011-07-07 |
| 20110164714 | Standing wave nuclear fission reactor and methods - Disclosed embodiments include nuclear fission reactor cores, nuclear fission reactors, methods of operating a nuclear fission reactor, and methods of managing excess reactivity in a nuclear fission reactor. | 2011-07-07 |
| 20110164715 | SYSTEM AND METHOD FOR DETECTING LEAKAGE OF NUCLEAR REACTOR COOLANT USING LASER INDUCED EMISSION SPECTRUM - System and method for detecting and/or predicting in a field the leakage of nuclear reactor coolant that may occur at the pressure boundary of the primary system of a nuclear reactor. The system and method for detecting the leakage of nuclear reactor coolant uses a laser induced emission spectrum. The leakage of coolant is detected by detecting boron (B), a main component of the coolant, in corrosive products generated at the nuclear reactor pressure boundary on the basis of laser spectroscopy. An embodiment of the system for detecting leakage of nuclear reactor coolant may include a laser generator, a laser focusing lens, an emission collector, and emission spectrum analyzer. | 2011-07-07 |
| 20110164716 | METHOD COMPRISING MEASUREMENT ON FUEL CHANNELS OF FUEL ASSEMBLIES FOR NUCLEAR BOILING WATER REACTORS - The invention concerns a method comprising measurement on a fuel channel ( | 2011-07-07 |
| 20110164717 | DEVICE FOR MEASURING AND CORRECTING A PARALLELISM ERROR IN A NUCLEAR FUEL ROD - A device for measuring and correcting a parallelism error of an upper plug end of a nuclear fuel rod comprising mechanisms for measuring a parallelism error and for correcting said error, and a mechanism for positioning said device on the fuel rod and cooperating with a rack on which the fuel rod is stored, said correction means being arranged opposite the measuring mechanism relative to the location of the fuel rod, in order to allow a measurement of the parallelism error during correction of said error. | 2011-07-07 |
| 20110164718 | DEVICE FOR GRIPPING FUEL ELEMENTS, ASSOCIATED CLAMP AND ASSOCIATED HANDLING SYSTEM - A fuel element handling system having a gripping device, the structure of which can be pushed in the horizontal position and uncoupled from the handling system if a failure occurs, uncoupling releasing the load formed by the fuel elements and their gripped support and putting them in a safe situation. | 2011-07-07 |
| 20110164719 | NUCLEAR FUEL ASSEMBLY DEBRIS FILTER BOTTOM NOZZLE - A debris filter bottom nozzle for a pressurized water nuclear reactor fuel assembly that employs a corrugated screen in combination with flow through holes in an adapter plate to filter out potentially damaging debris. The area between the screen and the adapter plate defines a plenum that forms a collection point for the debris and coolant access is provided to the plenum through openings in the screen and sidewalls of the nozzle. | 2011-07-07 |
| 20110164720 | CORE OF LIGHT WATER REACTOR AND FUEL ASSEMBLY - A core of a light water reactor has a plurality of fuel assemblies. The fuel assemblies include a plurality of fuel rods in which a lower end is supported by a lower tie-plate and an upper end is supported by an upper tie-plate. The fuel rods form plenums above a nuclear fuel material zone and have a neutron absorbing material filling zone under the nuclear fuel material zone. Neutron absorbing members attached to the upper tie-plate are disposed between mutual plenums of the neighboring fuel rods above the nuclear fuel material zone. The neutron absorbing members have a length of 500 mm and are positioned at a distance of 300 mm from the nuclear fuel material zone. Even if the overall core is assumed to become a state of 100% void, no positive reactivity is inserted to the core. | 2011-07-07 |
| 20110164721 | X-RAY IMAGE RECORDING SYSTEM AND X-RAY RECORDING METHOD FOR RECORDING IMAGE DATA WITH X-RAY UNITS FOR VOLUME RECONSTRUCTION - The present invention relates to an x-ray image recording system for recording x-ray projection images of alignment information for recorded x-ray projection images, comprising an x-ray tube and an x-ray image detector being arranged in the optical path of the x-ray tube for recording x-ray projection images of an object that can be disposed and/or that is disposed between the x-ray tube and the x-ray detector in an imaging region in a locally fixed manner, wherein the x-ray tube and the x-ray detector are disposed in a locally fixed manner relative to each other, and can be moved about the imaging region, at least in sections, a position sensor being disposed relative to the x-ray tube and the x-ray detector in a locally fixed manner, by means of said sensor the current alignment of the x-ray tube and the x-ray detector can be determined relative to a predefined reference direction at the moment of recording an x-ray projection image, and a storage unit for storing recorded x-ray projection images together with the respective current alignment of the x-ray tube and the x-ray detector. The invention comprises a computer being connected to the storage unit for the purpose of data exchange, by means of said computer the position data of the x-ray projection image that are necessary for the calculation of the layered images if the reconstruction can be calculated from the stored, associated current alignment for the purpose of layered image reconstruction based on multiple recorded x-ray projection images for each recorded x-ray projection image utilized. | 2011-07-07 |
| 20110164722 | IMAGING APPARATUS INCLUDING CORRECTION UNIT FOR SCATTERED RADIATION - The present invention relates to an imaging apparatus for generating an image of a region of interest of an object. The imaging apparatus comprises a radiation source ( | 2011-07-07 |
| 20110164723 | APPARATUS AND METHOD FOR X-RAY DETECTING - An X-ray detecting apparatus constructed as the present invention receives an X-ray passing through a subject during a window time in which the subject is exposed to the X-ray, and converts the X-ray into an electrical signal to output the electrical signal as a video signal. The X-ray detecting apparatus subtracts the offset video signal determined according to the window time in the video signal to generate a real video signal representing the X-ray result for photographing the subject. | 2011-07-07 |
| 20110164724 | RADIATION IMAGE CAPTURING DEVICE AND RADIATION IMAGE CAPTURING SYSTEM - A radiation image capturing device includes a radiation image capturing unit, a diaphragm unit, and a control unit. The radiation image capturing unit captures a radiation image based on radiation transmitted through a subject. The diaphragm unit has an opening region that is configured to transmit a part of the radiation emitted from a radiation source and an area thereof is changeable, and the diaphragm unit is configured such that a transmission dose of the radiation decreases as a distance from a circumferential part of the opening region increases. The control unit controls the diaphragm unit such that direct rays of the radiation are irradiated onto a predetermined region of the subject. | 2011-07-07 |
