Patents - stay tuned to the technology

Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


18th week of 2011 patent applcation highlights part 36
Patent application numberTitlePublished
20110103177STIRRER DEVICE AND A METHOD OF ADJUSTING IT - A stirrer device (12011-05-05
20110103178APPARATUS FOR CONTROLLING SOLIDS BUILD UP IN A MIXER, UNLOADER OR SIMILAR DEVICE - The apparatus of the present invention comprises a plurality of flexible impact elements for controlling the buildup of solids in a mixer, unloader or similar device. The device for use with the impact elements has at least one shaft and a plurality of rotating elements extending radially from the shaft for moving ash or similar particulate solids. The flexible impact elements communicate with the device as the shaft rotates so as to limit or control the buildup of solids on the rotating elements, thus enabling a more efficient throughput of materials by the device.2011-05-05
20110103179Hydrodynamic depressor for marine sensor streamer arrays - A hydrodynamic foil system for a sensor streamer array includes at least two tow ropes each coupled at one end to a survey vessel and at the other end to a paravane. the paravanes configured to provide lateral outward force as the vessel and paravanes are moved through a body of water. A spreader cable is coupled to each of the paravanes. A plurality of laterally spaced apart sensor streamers coupled at forward ends thereof to the spreader cable. A plurality of foils is disposed on the spreader cables. The foils configured to provide hydrodynamic lift in a vertical direction as the spreader cables are moved through the water.2011-05-05
20110103180Solid Seismic Streamer cable and Method - An apparatus includes a streamer cable having one or more seismic devices disposed within a polymer body and about a core. The polymer body includes a channel defined therein for receiving one or more wires connecting the seismic devices. The wires include slack for withstanding the tensional forces experienced by the streamer cable during deployment and operation. Associated methods are also described.2011-05-05
20110103181System and Technique to Suppress the Acquisition of Torque Noise on a Multi-Component Streamer - A technique includes distributing particle motion sensors along the length of a seismic streamer. Each particle motion sensor is eccentrically disposed at an associated angle about an axis of the seismic streamer with respect to a reference line that is common to the associated angles. The sensors are mounted to suppress torque noise in measurements that are acquired by the particle motion sensors. This mounting includes substantially varying the associated angles.2011-05-05
20110103182Removing Noise from a Seismic Measurement - A technique includes spatially filtering a signal that is derived from a seismic acquisition. The filtering is associated with a filter length, and the filtering includes varying the filter length with frequency. The filtering may be used in connection with adaptive noise attenuation, which is applied to decomposed subbands. Furthermore, the filtering may be applied during the reconstruction of the signal from the subbands.2011-05-05
20110103183System and Technique to Increase the Spacing of Particle Motion Sensors on a Seismic Streamer - A technique includes receiving data indicative of non-uniformly spaced samples of particle motion wavefield acquired by particle motion sensors while in tow. The samples are spaced apart by an average spacing interval, which is not small enough to prevent vibration noise from being aliased into a signal cone for a first signal formed from samples of the particle motion wavefield having a uniform spacing at the average spacing interval. The technique includes processing the data to generate a second signal that is indicative of the particle motion wavefield and does not have aliased vibration noise in the signal cone.2011-05-05
20110103184TECHNIQUE AND SYSTEM FOR DERIVING A TIME LAPSE LOW FREQUENCY MODEL USING BOTH SEISMIC DATA AND A FLOW SIMULATION MODEL - A technique includes determining a change in an elastic property of a region of interest at a second time relative to a first time based on a flow simulation model. The technique includes scaling the determined change in the elastic property based on data acquired in a seismic survey.2011-05-05
20110103185SYSTEM AND METHOD FOR SEISMIC BEAM FORMATION THAT ACCOUNTS FOR EQUIPMENT MISALIGNMENT - Seismic data representing the propagation of seismic energy through a geologic volume of interest is processed. The seismic energy propagates through the geologic volume of interest from one or more source locations at or near the geologic volume of interest to one or more detector locations at or near the geologic volume of interest. In processing the seismic data, the seismic energy is modeled as beams (e.g., Gaussian beams). The processing performed (i) corrects for misalignment of the one or more source locations and/or the one or more detector locations with a regular, predetermined mesh, and (ii) steers the seismic data based on the modeled beams.2011-05-05
20110103186Seismic Source/Receiver Probe for Shallow Seismic Surveying - Systems and methods are implemented for evaluating underground structures and objects, particularly relatively shallow underground structures and objects, using a seismic or acoustic source signal and a resulting seismic or acoustic wave. A discrete or unitary apparatus incorporates both a seismic source transducer and a receiver transducer within a common housing or frame. A unitary seismic probe includes a ground engaging member and a seismic source mechanically coupled to the ground engaging member. The probe further includes a sensor assembly mechanically coupled to the ground engaging member and configured to sense ground vibrations resulting from an impact to the ground engaging member by the seismic source.2011-05-05
20110103187MIGRATION-BASED ILLUMINATION DETERMINATION FOR AVA RISK ASSESSMENT - According to a preferred aspect of the instant invention, there is provided herein a system and method for extending zero-offset or stacked wave-equation illumination analysis into the angle-gather domain, where it becomes an appropriate tool for assessing the effects of complex overburden on AVA response. A preferred method for doing this involves first creating an angle gather that has a perfect AVA response (i.e. a constant amplitude as a function of angle). This gather is then preferably used as a reflectivity map that is fed into a demigration process which creates modeled data that by construction carries with it a completely flat reflectivity signature. Remigration of such a data set then results in a gather on which any amplitude variation is more likely to be a measure of illumination effects alone. The resulting AVA signature on the gather can then be used to assess the validity of the AVA response on modeled or actual data, resulting in a useful AVA risk analysis.2011-05-05
20110103188SYSTEM AND METHOD TO EXTEND DEEP WATER CORRELATION SONAR SYSTEMS TO SHALLOW DEPTHS - In an embodiment, a correlation SONAR system is adapted for use in shallow water. A pulse generator transmits an initial burst of pulses towards a bottom of a body of water. Echoes of the initial burst of pulses are received on a hydrophone array. After the receiving the echoes of the initial burst of pulses, a second burst of pulses is transmitted towards the bottom of the body of water. The echoes of the second burst of pulses are received on the hydrophone array, and a SONAR processor correlates a pulse from the initial burst of pulses and a pulse from the second burst of pulses to calculate a velocity estimate.2011-05-05
20110103189ANOMALY DETECTOR FOR PIPELINES - Apparatus for locating an object in a pipeline, comprising a transmitting station having means for transmitting in the pipeline acoustic emissions having a frequency in the range from 20 KHz to 200 KHz; a receiving station having a receiver capable of receiving the acoustic emissions transmitted by the transmitting station; one of the receiving station and the transmitting station being located at a known position on the pipeline and the other of the receiving station and the transmitting station being located on the object; and clock means to determine the time taken for the acoustic emissions to travel between the transmitting station and the receiving station.2011-05-05
20110103190Method and Apparatus for Passive Determination of Target Parameters - A method and an apparatus for passive determination of target parameters by directionally selective reception of sound waves emitted or transmitted from a target, by an arrangement (2011-05-05
20110103191APPARATUS AND METHOD TO TRACK POSITIONS OF MULTIPLE SOUND SOURCES - Disclosed herein is an apparatus and method to track positions of multiple sound sources which can simultaneously track the positions of multiple sound sources. Sound signals input to an array of microphones are separated into independent sound source signals, correlation coefficients between the sound signals input to the microphones and the separated sound source signals are estimated, and the estimated correlation coefficients are analyzed to track the positions of the sound sources.2011-05-05
20110103192Clock(s) as a seismic wave receiver - A machine for detecting earthquake precursory signals that comprises a spring loaded balance wheel that is in reality an oscillating seismometer, the oscillating seismometer employed as a local oscillator in a seismic wave receiver, a clock together with its balance wheel make up the seismic wave receiver which detect the precursory micro-seismic vibrations that precede the earthquake, extreme sensitivity—UNMATCHED BY EFFORTS WORLD WIDE—is accomplished by the immense storage capacity of the clock, for each individual swing of the balance wheel, a miniscule interruption takes place that will go unnoticed but after tens of thousands of swings, which would take place over night for example, a buildup of these interruptions will eventually have their effect.2011-05-05
20110103193Personal Alert System with Adhesive Fixation - The present disclosure generally provides systems and methods of alerting a user at a predetermined time. This may be accomplished with a personal alarm device according to an embodiment of the present disclosure. Such personal alarm device includes an alarm clock that is coupled to an adhesive material. The adhesive material is adapted to allow the alarm clock to be affixed to the skin of the user. The adhesive material also allows the user to remove the personal alarm device from the skin of the user. The alarm clock is a self-contained unit that is operable to display a time, allow the user to set a predetermined time, and alert the user at the predetermined time. The self-contained unit may perform all of these functions without communicating with an external device, but may also function in connection with an external device or system.2011-05-05
20110103194Linear Clock - The Linear Clock is a clock comprising: a timer circuit for maintaining hours and minutes for the time of day, a segment member having an adjustable length, an hour display showing the hour of the day, and a control circuit. The control circuit is responsive to the timer circuit and coupled to the segment member and the hour display. The control circuit positions the starting point and stopping point of the segment member to adjust the length and position of the segment member thereby indicating the elapsed portion of an hour of the day maintained by the timer circuit. The control circuit also causes the hour display to show the hour of the day.2011-05-05
20110103195Watch Assembly Having a Plurality of Time-Coordinated Belts - A watch for providing a digital time display comprises a movement mechanism disposed in a case that includes a number of continuous belts. The belts each have a numerical indicia consistent with hours, minutes and optionally second. The belts mounted over opposed drums, and the drums are rotated through gear engagement motors to move the belts. The arrangement of belts and drums are mounted on a frame separate from the case. The motors are operated to move the belts to cause the numerical indicia of the combined belts to register with one or more windows visible through a transparent cover to provide a time display. The belts may be oriented to overlap one another. The watch includes a microcontroller for controlling the operation of the motors, an optical sensor to determining the position of the belts, and a wirelessly rechargeable battery pack for powering the motors.2011-05-05
20110103196COMPOSITE BALANCE AND METHOD OF MANUFACTURING THE SAME - The invention relates to a composite balance (2011-05-05
20110103197ONE-PIECE REGULATING MEMBER AND METHOD OF MANUFACTURING THE SAME - The invention relates to a one-piece regulating member including a balance cooperating with a hairspring made in a layer of silicon-based material and including a balance spring coaxially mounted on a collet. According to the invention, the collet includes one extending part that projects from the balance spring and which is made in a second layer of silicon-based material and is secured to the balance.2011-05-05
20110103198WATCH STRAP OR BRACELET - The invention concerns a strap or bracelet (2011-05-05
20110103199DECORATIVE PIECE MADE BY INLAY - The present invention concerns a decorative piece (2011-05-05
20110103200SYSTEM FOR SECURING A PART WITHOUT DRIVING IN OR BONDING - The invention relates to a system (2011-05-05
20110103201LIGHT DELIVERY WAVEGUIDE - A light source and a waveguide are mounted on a recording head slider. Light rays are emitted from the light source into the waveguide. The waveguide may include two core layers for light ray transmission. The first core layer enhances light coupling efficiency from the light source to the second core layer. The second core layer transforms a profile of the light. The waveguide may include a tapered portion with a narrow opening near the light source and a wider opening near the tapered portion exit. The light rays passing through the waveguide may be directed toward a collimating mirror. The collimating mirror makes the light rays parallel or nearly parallel and re-directs the light rays to a focusing mirror. The focusing mirror focuses the collimated light rays to a spot on a magnetic media disc.2011-05-05
20110103202OPTICAL DISK UNIT AND REPRODUCTION METHOD THEREFOR - It is desirable to provide a reproduction method having a high operating efficiency in an optical disk unit containing a mass storage memory such as a semiconductor memory. Data to be recorded is recorded on both an optical disk and the mass storage memory. Verify flags respectively corresponding to recording sectors or ECC blocks of an optical disk medium are stored in a control memory. In response to an instruction to reproduce the data, the data recorded on an optical disk is reproduced and verified when the data is not yet verified in reference to the verify flag. When the data has been verified, the data recorded on the mass storage memory is read and outputted to reduce response time, current consumption, and noise significantly. The mass storage memory is mounted in the optical disk unit to contribute to downsizing of a recording and reproduction device.2011-05-05
20110103203Actuator for pickup, pickup device, recording medium drive device, and method of manufacturing actuator for pickup - Provided is an actuator for a pickup, in which end parts of a plurality of suspensions (2011-05-05
20110103204METHOD AND APPARATUS FOR COMPENSATING FOR DEFECT OF STORAGE MEDIUM - An apparatus for compensating for a defect of a storage medium of an optical driving includes a memory to store sample values of a servo driving signal during at least one track sampled by a first signal and cycle information about the first signal; a servo driving signal estimator to estimate a servo driving signal during at least one next track using the sample values, the cycle information about the first signal, and cycle information based on a second signal; and a transmitter to transmit the servo driving signal estimated by the servo driving signal estimator to a servo driver of the optical driving device during a defect section of the storage medium; wherein the first signal is synchronized with a radial direction of the storage medium; and the second signal has a frequency higher than the first signal.2011-05-05
20110103205OPTICAL DISC APPARATUS AND TRACKING CONTROL METHOD - An optical disc apparatus of the present application has a lens position signal generator for generating a lens position signal representative of a position of an objective lens in a disc radial direction, an amplitude corrector for correcting an amplitude of a tracking error signal, and a tracking controller for generating an actuator drive signal for controlling an actuator, from an output of the amplitude corrector, wherein the amplitude corrector corrects an amplitude of the tracking error signal in accordance with the lens position signal to make approximately constant a tracking error detection sensitivity relative to a displacement between an optical spot and a track.2011-05-05
20110103206Optical Disk Apparatus and Information Recording Method - In an optical disk apparatus, by obtaining the temperature in the vicinity of a laser in the apparatus, the power source voltage of the laser driver is controlled such that power consumed by the headroom of the laser driver is reduced to the maximum extent without deteriorating the current drive characteristic of the headroom when the temperature becomes higher. The laser driving current of the laser driver is monitored to control the power source of the laser driver such that the power consumed by the headroom is possibly reduced while maintaining the current drive characteristic of the headroom for the monitored current.2011-05-05
20110103207OPTICAL SYSTEM OF OPTICAL PICK-UP AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An optical system of an optical pick-up including a resin coupling lens and a resin objective lens with NA larger than 0.8, wherein, magnification β satisfies a condition: −0.13<β<−0.08, a focal length f of the objective lens satisfies a condition: 1.152011-05-05
20110103208MANUFACTURING METHOD FOR OPTICAL DISC, OPTICAL DISC, PLAYBACK METHOD FOR OPTICAL DISC, PLAYBACK APPARATUS FOR OPTICAL DISC, RECORDING APPARATUS FOR OPTICAL DISC - Address information that has been error correction encoded is recorded on a second version of a recording medium after being transformed such that such that the address decoding cannot be performed by a playback device that is not compatible with the second version of the recording medium. The address decoding for the second version of the recording medium cannot be performed by the incompatible playback device (for example, a playback device that was manufactured to be compatible only with a first version of the recording medium). In other words, in the playback device that is not compatible with the second version of the recording medium, a state is created in which address errors cannot be corrected, so access is impossible (recording and playback are impossible).2011-05-05
20110103209DRIVE DEVICE AND METHOD FOR CONTROLLING THE SAME - An optical drive includes: an optical pickup; a preprocessing circuit which processes an optical signal detected by the optical pickup; nonvolatile memory having stored therein relation information which represents the relation of a signal balance with respect to a signal difference between a TE signal and an FE signal at the time of a predetermined operation of the optical pickup; and a central processing circuit which performs focus control of the optical pickup. The preprocessing circuit generates the signal balance of the optical pickup. The preprocessing circuit also obtains the FE signal and the TE signal with respect to the optical disc. The central processing circuit derives a phase difference and an amplitude difference from the signal balance and the relation information, and calculates, based on the differences and the TE signal, a FE signal suitable for the predetermined operation.2011-05-05
20110103210METHOD AND APPARATUS FOR PROCESSING DEFECT IN DATA STORAGE MEDIUM - A method of detecting defects of a recording medium comprises detecting a number of error-corrected error correction code symbols in each of a plurality of sectors in the recording medium, classifying sectors having a number of error-corrected ECC symbols greater than a first threshold value as first type defect sectors, calculating moving averages of the numbers of error-corrected ECC symbols in units of a predetermined number of sectors, and classifying sectors that are used to calculate a moving average greater than a second threshold value as second type defect sectors.2011-05-05
20110103211OPTICAL RECORDING MEDIUM, METHOD OF MANUFACTURING OPTICAL RECORDING MEDIUM, RECORDING METHOD AND REPRODUCING METHOD - An optical recording medium includes recording layers and intermediate layers. The recording layers include a diffraction grating that has a predetermined grating pitch and is obtained by alternately laminating first layers and second layers being transparent and having slightly different refractive indexes. The intermediate layers are transparent and have a larger thickness than that of the recording layers. In the optical recording medium, the recording layers and the intermediate layers are alternately laminated.2011-05-05
20110103212METHODS FOR ASSESSING THE RESULTS OF DISC-BASED BIOASSAYS WITH STANDARD COMPUTER OPTICAL DRIVES - Methods and systems are described for assessing the results of a bioassay between probe biomolecules and target biomolecules using a conventional optical disc drive. Particular methods involve: bonding the probe biomolecules to a polycarbonate (PC) surface of an optical disc having digital data comprising error-detection redundancies recorded thereon; introducing the target biomolecules to the PC surface of the optical disc in a vicinity of the bonded probe biomolecules; processing the bioassay to alter a manner in which a read light from the optical disc drive interacts optically with the optical disc in a vicinity of positive bioassay results where the target biomolecules have bonded to the probe biomolecules; reading the digital data from the optical disc using the optical drive and using the error-detection redundancies to detect errors in the digital data read by the optical drive; mapping the detected errors to corresponding locations on the optical disc; and determining that positive bioassay results have occurred at the locations of the detected errors.2011-05-05
20110103213System and Method for Embedding Optical Drive Compatibility Information In Optical Media - Compatibility information embedded in an optical medium modifies actions allowed by predetermined non-compatible optical disc drives on the optical medium, such as optical disc drives that may suffer damage if certain actions are performed on the optical medium. For instance, a compatibility engine of the optical disc drive applies compatibility information read from an optical medium to determine restrictions to impose on the use of the optical medium, such as restricting the optical disc drive from writing to the optical medium, reading from the optical medium or performing any operations until an update to the optical disc drive firmware is performed either automatically or by display of a compatibility user interface at an information handling system associated with the optical disc drive. In one embodiment, the compatibility information identifies incompatible optical disc drives and firmware versions by unique identifiers.2011-05-05
20110103214DATA RECORDING MEDIUM, SERVER DEVICE USING THE SAME, AND METHOD OF MANAGING USE OF DATA RECORDING MEDIUM - A server device without a means for accessing an IC memory included in a data storage medium can check whether or not a data storage medium includes an IC memory. A portable optical disc medium (2011-05-05
20110103215Optical Pickup Apparatus - An optical pickup apparatus, which reads signals recorded on first and second signal recording layers of an optical disc, includes: a laser diode; an objective lens to condense a laser beam to the first and second signal recording layers; and a collimating lens disposed in a light path of the laser beam between the laser diode and the objective lens and configured to correct a spherical aberration by moving in a light axis direction of the laser beam, and the objective lens includes a bifocal lens and is configured such that a second focal point does not coincide in position with the second signal recording layer when a first focal point coincides in position with the first signal recording layer, and the first focal point does not coincide in position with the first signal recording layer when the second focal point coincides in position with the second signal recording layer.2011-05-05
20110103216High data density optical recording medium - The present invention relates to a high data density optical recording medium. The invention further relates to an apparatus for reading from such an optical recording medium. The optical recording medium has marks that are arranged in tracks. The tracks have a cross section with a curved shape and protrude above a surface of the optical recording medium.2011-05-05
20110103217OPTICAL INFORMATION RECORDING/REPRODUCING OPTICAL SYSTEM AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An objective lens for an optical information recording/reproducing optical system for an optical disc letting a laser beam impinge on a recording layer of the optical disc, and wherein a center wavelength λ (unit: nm) of the laser beam is in a range defined by a condition: 390≦λ≦420, a base material of the objective lens is made of resin, the resin has a glass transition temperature Tg and light transmissivity T (unit: %) per a path length of 3 mm at a wavelength of 406 nm defined by conditions: Tg≧115° C., 85≦T≦90, same antireflection films or different types of antireflection films are respectively formed on optical surfaces of the objective lens, and each of the antireflection films formed on the objective lens has a thickness of 100 nm or more in a vicinity of an optical axis of the objective lens.2011-05-05
20110103218METHOD AND APPARATUS OF DOWNLINK SUBCHANNELIZATION IN WIRELESS COMMUNICATION SYSTEM - A method of downlink subchannelization in a wireless communication system includes: transmitting a network entry and network discovery information including an open loop (OL) region parameter; and mapping a physical resource unit (PRU) to a contiguous resource unit (CRU) or a distributed resource unit (DRU) with respect to ith frequency partition based on the OL region parameter, wherein a permutation sequence used for mapping a PRU of the ith frequency partition (PRU2011-05-05
20110103219METHOD AND APPARATUS FOR GENERATING RANGING PREAMBLE CODE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of generating a ranging preamble code in a wireless communication system comprises generating a Zadoff-Chu (ZC) sequence in which a cyclic shift is applied to each of a plurality of orthogonal frequency division multiple access (OFDMA) symbols as a ranging preamble code, wherein the cyclic shift is applied for each OFDMA symbol.2011-05-05
20110103220HIGH CAPACITY ROUTER HAVING REDUNDANT COMPONENTS - A router includes multiple routing engines. If the active routing engine fails, a backup one of the routing engines detects the failure and assumes the role of active routing engine. A redundancy controller circuit, connected to the multiple routing engines, facilitates the selection and switching of the routing engines. Portions of the packet forwarding engine, in addition to the routing engine, may be redundantly implemented. The active routing engine controls the selection of the redundant portion of the packet forwarding engine.2011-05-05
20110103221METHOD FOR HANDLING RADIO LINK FAILURE IN MUTIPLE CARRIER SYSTEM - A method of handling a radio link failure in a multiple-carrier system performed by a user equipment (UE) is provided. The method includes transmitting, to a base station (BS), a first message indicating a first radio link problem (RLP) in a first carrier when the first RLP is detected, transmitting, to the BS, a second message indicating a second RLP in a second carrier when the second RLP is detected, and transmitting, to the BS, a final message requesting a connection re-establishment with the BS. By using a plurality of different timers on CCs configured for one UE, the meaning of RLF in a multiple-carrier system for triggering radio connection re-establishment procedure is clarified and defined in detail.2011-05-05
20110103222SIGNAL TRANSMISSION METHOD AND TRANSMISSION DEVICE - A signal transmission method includes causing each of a plurality of nodes to transfer, using the actually used line, a second signal in a second layer, in which one or a plurality of first signals in a first layer are contained, to a node adjacent in the first or the second direction when each of the plurality of nodes transmits or receives the first signal, when no failure occurs in a transmission path in a network, and causing a first node, located at an end of a failure point, to switch a transmission direction of the second signal and to send out the second signal to the backup line, and causing a second node, which is a transmission source or a reception destination of the first signal, to select one of the first and second directions, when a failure occurs in the transmission path in the network.2011-05-05
20110103223System and Method to Determine Resource Status of End-to-End Path - Determining availability of an end-to-end physical path associated with reserved resources of a tunnel may include determining, for one or more nodes, a resource status for one or more resources integral to each node. Resource status for the integral resources of each node may be recorded in a message. Each node may communicate its associated message to one or more other nodes. At least one particular node of the one or more nodes may receive the messages communicated from the one or more nodes. The at least one particular node may store resource statuses for each of the one or more nodes. Based on an analysis of resource statuses, the at least one particular node may determine an availability of an end-to-end path of reserved resources of a tunnel including one or more of the nodes based on an analysis of resource statuses.2011-05-05
20110103224DATA COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD - A data communication system for starting transmission and reception of target data for processing upon recognition that switching between communication modes is completed. The data communication system includes a master communication device and a slave communication device that continuously perform, at a time of switching from half-duplex communication to full-duplex communication, (i) a handshake using a directional control code indicating the switching and a preamble code indicating completion of the switching and (ii) a handshake using the preamble code and an acknowledge code indicating receipt of the preamble code, whereby each of the devices recognizes that the switching between communication modes by the opposite device is completed and starts transmission and reception of the target data.2011-05-05
20110103225BANDWIDTH SIGNALLING - A telecommunication network comprising a plurality of nodes including a content source (2011-05-05
20110103226SYSTEM FOR TRANSPORTING ETHERNET FRAMES OVER VERY HIGH SPEED DIGITAL SUBSCRIBER LINES - An apparatus for and method of encapsulating Ethernet frames over a Very high speed Digital Subscriber Line (VDSL) transport facility. The VDSL frames are transmitted over a point to point VDSL link where they are subsequently extracted and forwarded as standard Ethernet frames. The VDSL facility transport system comprises an Ethernet to VDSL Customer Premises Equipment (CPE) coupled to a DSL Access Multiplexor (DSLAM) over a VDSL transport facility. The Ethernet to VDSL CPE functions to receive a 10BaseT Ethernet signal and encapsulate the Ethernet frame into a VDSL frame for transmission over the VDSL facility. The DSLAM is adapted to receive VDSL frames, extract Ethernet frames therefrom and generate and output a standard Ethernet signal. Ethernet frames are encapsulated within VDSL frames and transmitted on the wire pair without regard to the state of the SOC signals.2011-05-05
20110103227QOS PROVISIONING IN A NETWORK HAVING DYNAMIC LINK STATES - A network node for a network having dynamic link states includes a processing unit and computer-readable memory for causing the processing unit to monitor a link state of the network; perform QoS provisioning and make appropriate updates to the QoS provisioning based on changes in the link state and QoS provisioning demands of QoS-aware applications; and provide notification to the QoS-aware applications to allow those applications to dynamically adapt to the link state changes.2011-05-05
20110103228OSPF POINT-TO-MULTIPOINT OVER BROADCAST OR NBMA MODE - A network device identifies an Open Shortest Path First (OSPF) link between the network device and a layer 2 network as one of a point-to-multipoint over broadcast interface or a point-to-multipoint over non-broadcast multi access (NBMA) interface, and performs database synchronization and neighbor discovery and maintenance using one of a broadcast model or a NBMA model. The network device also generates a link-state advertisement for the network device, where the link-state advertisement includes a separate link description for each point-to-point link within the layer 2 network; and sends the link-state advertisement to each fully adjacent neighbor in the layer 2 network.2011-05-05
20110103229DYNAMIC NETWORK CONFIGURATION - A method comprises monitoring a network for an event. The network includes wireless access points through which wireless users access the network and a plurality of virtual service communities allocated to one or more of the wireless access points. Each virtual service community (VSC) is configured for one or more network services. The network services associated with one VSC includes at least one network service that is different than the network services of another VSC. The method further comprises detecting the event; and based on the occurrence of the detected event, performing an action that includes dynamically allocating a VSC to an access point.2011-05-05
20110103230Balancing Clients Across Bands in a Single Access Point - Balancing client load on an access point in a wireless digital network. An access point tracks the number of connected users and accepts new connections only if the number of connected users is below a preset threshold. The number of connected users may be tracked on an access point wide basis, a per-band basis, a per-BSSID basis, or a combination. Similarly, accepting new connections may be done on an access point wide basis, a per-band basis, a per-BSSID basis, on the basis of client 802.11 capabilities, or a combination.2011-05-05
20110103231System and Method for Mapping Internet Protocol Television Interference - A method in a server for monitoring an Internet Protocol television (IPTV) service for a customer premises is disclosed. A first geographical location of a customer premises is retrieved, and a second geographical location of an amplitude modulation broadcasting facility within a threshold distance from the customer premises is retrieved. A first signal transmission power rating for the amplitude modulation broadcasting facility during daytime hours is retrieved, as is second signal transmission power rating for the amplitude modulation broadcasting facility during nighttime hours. A time of day that the IPTV service failure occurs is determined based on the first signal transmission power rating for the daytime hours and the second signal transmission power rating for the nighttime hours.2011-05-05
20110103232APPARATUS, SYSTEM AND METHOD OF PRIORITIZING A MANAGEMENT FRAME OF A WIRELESS NETWORK - A method and apparatus to enable configuring of a management frame priority and security type. The method and the apparatus may set a priority level and a transmission data rate of a management frame. The apparatus includes a memory including a priority queue for each management frame and a transmitter to transmit said management frame according to the priority queue of said frame.2011-05-05
20110103233NOTIFICATION METHOD, ACCESS POINT, STATION, AND WIRELESS SYSTEM - A notification method, an access point (AP), a station (STA), and a wireless system are disclosed. The notification method includes checking whether a power event occurs, and notifying the power event to an STA if the power event occurs. According to the present invention, the STA can learn about the power event, which helps the STA to decide on the subsequent action according to the power event.2011-05-05
20110103234COMMUNICATION DEVICE, COMMUNICATION SYSTEM, COMMUNICATION PROGRAM, AND COMMUNICATION METHOD - In the past, there has been such a problem that a line failure could not be quickly detected on the basis of the difference between receiving times of a plurality of pieces of information. This communication device capable of solving the problem is provided with a control means which receives, from an opposite device connected through first and second lines, first information transmitted through the first line, and second information transmitted simultaneously with the first information through the second line, and a detection means which detects the line failure of the second line from the lapse of a first monitoring time without receiving the second information by the control means, after the reception of the first information.2011-05-05
20110103235WIRELESS LOCAL AREA NETWORK TEST SYSTEM WITH FORCED TRANSMIT RATES DURING PROTOCOL-BASED TESTING - A system for performing wireless local area network testing of wireless devices may include a wireless local area network tester and a device under test. The tester and device under test may communicate over a wireless link. To ensure that the tester accurately analyzes test data, a data rate table is used that specifies fixed data transmission rates to be used by the device under test under both high-quality link conditions and low-quality link conditions. This forces the device under test to transmit control packets at the same high data rate during packet loopback testing, regardless of link quality. When the captured control packets are analyzed at the tester, both low-link-quality data and high-link-quality data may be analyzed using a common test template, ensuring accurate results.2011-05-05
20110103236TRANSMISSION METHOD OF CODE DIVISION MULTIPLEXING AND MULTIPLE ACCESS - The present invention relates to a code multiplexing method which employs the parallel linear or nonlinear coding whose coding rate is more than one for the multiplexing transmission. When the coding rate is more than one, the parallel input bits sequence and the parallel output bits sequence have a one-to-one relationship. The aforementioned parallel coding method is beyond the finite field, and all the parallel coding polynomial set is coprime with each other. The method includes the following steps: compositing the encoding matrix B which contains K coding vectors, forming K parallel data transmission paths which correspond to the K coding vectors, processing the convolutional coding between each data path and the corresponding coding vector where the coding constraint length is L, forming the N-dimensional output vectors by summing the result of the K convolutional coding data paths, receiving the aforementioned N-dimensional coding output vectors and taking the sequence detection. The abovementioned K, N, L are the basic parameters for the parallel coding. The present invention can greatly boost the system capacity and enhance the frequency efficiency by using the linear or nonlinear coding transmission whose coding rate is more than one.2011-05-05
20110103237METHOD AND APPARATUS FOR THE EFFICIENT INDEXING AND STORAGE OF NETWORK TRAFFIC - A network analyzer reads network packets and extracts characterizing attributes, grouping patents observed in a given amount of time on common attribute values. Grouped attributes are meta data, written to a database, while packets are written to files.2011-05-05
20110103238METHOD AND APPARATUS FOR THE EFFICIENT CORRELATION OF NETWORK TRAFFIC TO RELATED PACKETS - A network analyzer reads network packets and extracts characterizing attributes, grouping patents observed in a given amount of time on common attribute values. Grouped attributes are meta data, written to a database, while packets are written to files. Meta data is stored in the database including links to the physical packets related to the meta data, and a user interface enables query of the meta data and retrieval of related physical packets.2011-05-05
20110103239FLOW SYSTEMS AND METHODS - Systems and methods for process flow tracking are presented. In one embodiment, a flow method comprises collecting records associated with flow for post analysis; performing a flow connection process associated with the flow, wherein the flow connection process examines information in a hash table and connects flow segments based upon connect ID; and performing a presentation process in which the flow is visualized, searched and traversed. In one exemplary implementation, a flow connection process utilizes a hash table that draws a correlation between the connect ID and a connect-start record or a connect-end record.2011-05-05
20110103240METHOD FOR FORWARDING IN PEER-TO-PEER WIRELESS COMMUNICATIONS - Certain aspects of the present disclosure relate to a method for forwarding of data in peer-to-peer transactions by a high-capability wireless device, such as an access point.2011-05-05
20110103241MOBILE STATION APPARATUS AND METHOD FOR TRANSMITTING SIGNALS IN WIRELESS COMMUNICATION SYSTEM - A method for transmitting signal, at a mobile station, in a wireless communication system is provided. Inter-cell interference information may be different for each frequency partition according to using a FFR scheme. Also, a parameter for controlling interference level between base stations may be different for each frequency partition. The present invention is advantageous in that, when uplink transmission is performed, system throughput and cell edge-user throughput are improved and inter-cell interference level control is efficiently performed.2011-05-05
20110103242SYSTEM AND METHOD FOR MEASURING AND DISPLAYING PRESENCE OF WIRELESS LOCAL AREA NETWORK DEVICES - An instrument is disclosed that is capable of detecting and graphically displaying channel usage and the number of access points operating on each channel of interest. By using a module that counts the number of elapsed clock cycles, the total cumulative duration of detected frames, and the number of channel in-use cycles, the instrument can determine the percentage of time a channel is in use, the percentage of time of IEEE 802.11 usage on a channel, and the percentage of time of non-IEEE 802.11 usage on a channel. Further, channels are scanned for access point activity using a scanning algorithm that interleaves scanning channels at a first duration longer than the beacon interval and scanning channels at a second shorter duration.2011-05-05
20110103243SIGNALING FOR FLEXIBLE CARRIER AGGREGATION - Flexible carrier aggregation is provided for a radio communications system. A capability is determined to communicate over a radio interface using multiple radio frequency component carriers. Each of the multiple component carriers is configurable with one or more control channels in a first mode of operation and with no control channels in a second mode of operation. Configuration information for one of the multiple radio frequency component carriers is signaled to indicate at least one of the component carriers is configured to operate in a selected one of the first mode of operation and the second mode of operation so that a network radio node and a user equipment radio node can communicate using the selected mode of operation.2011-05-05
20110103244FIBRE CHANNEL SWITCHING FABRIC PORT CONTROL - The Fibre Channel standard was created by the American National Standard for Information Systems (ANSI) X3T11 task group to define a serial I/O channel for interconnecting a number of heterogeneous peripheral devices to computer systems as well as interconnecting the computer systems themselves through optical fiber and copper media at gigabit speeds (i.e., one billion bits per second). Multiple protocols such as SCSI (Small Computer Serial Interface), IP (Internet Protocol), HIPPI, ATM (Asynchronous Transfer Mode) among others can concurrently utilize the same media when mapped over Fibre Channel. A Fibre Channel Fabric is an entity which transmits Fibre Channel frames between connected Node Ports. The Fibre Channel fabric routes the frames based on the destination address as well as other information embedded in the Fibre Channel frame header. Node Ports are attached to the Fibre Channel Fabric through links.2011-05-05
20110103245BUFFER SPACE ALLOCATION METHOD AND RELATED PACKET SWITCH - A buffer space allocation method for a packet switch includes periodically performing a measurement process to obtain a plurality of measurement results at different times, each measurement result indicating a total size of accumulated packets in an output queue corresponding to one of a plurality of network ports of the packet switch, and adjusting a dedicated buffer space of the output queue according to the plurality of measurement results and a reserved space value for the dedicated buffer space.2011-05-05
20110103246POWER-EFFICIENT LINK GROUP COMMUNICATION APPARATUS AND METHOD - A power-efficient link group-based communication system is provided. In link group-based communication, according to the amount of transmitted traffic, an appropriate number of links in a link group are set to active mode to be used for traffic transmission, and the rest of the links in the link group are set to power save mode, thereby not transmitting traffic. Thus, efficient power reduction in the link group-based communication can be realized.2011-05-05
20110103247CHANNEL STATUS REPORTING - Methods, systems, apparatus and computer program products are provided to facilitate the transmission of channel status information in wireless systems, such as advanced long-term evolution (LTE-A) systems. Requests for aperiodic channel status reports are generated in systems that use multiple carriers and operate in multiple-in-multiple-out (MIMO) configurations. The request enables a user equipment to configure two transport blocks for the transmission of channel status information only. In some instances, data, in addition to channel status information, is transmitted by the user equipment.2011-05-05
20110103248METHOD AND DEVICE FOR MANAGING COMMUNICATIONS IN A WIRELESS NETWORK, METHOD FOR SETTING UP A SECOND COMMUNICATION, CORRESPONDING COMPUTER PROGRAM PRODUCT AND STORAGE MEANS - A method is proposed for managing communications in a wireless network in which a first communication is set up or established on a plurality of carriers between a first sender device and a receiver device, the network comprising a set of at least one second sender device for which a second communication has to be established simultaneously with said first communication.2011-05-05
20110103249METHOD AND APPARATUS FOR MEASURING CELL IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for measuring a cell a wireless communication system are disclosed. The method includes receiving measurement configuration information for a plurality of frequencies from a BS, without a dedicated connection between a UE and a network, and measuring cells using the plurality of frequencies according to the measurement configuration information.2011-05-05
20110103250METHOD AND APPARATUS FOR TRANSMITTING DEDICATED REFERENCE SIGNAL - A method and apparatus for transmitting a dedicated reference signal (DRS) are provided, the method including determining, by a base station, whether user equipments (UEs) participating in multiple users-multiple input multiple output (MU-MIMO) at the same physical resource block (PRB) belong to the same cell, if yes, configuring that the UEs adopt a cell-specific scrambling code sequence; otherwise, configuring that the UEs located in the cells belonging to the same cell group adopt a cell group-specific scrambling code sequence; sending, by the base station, configuration information to the UE, and sending a DRS to the UE by using the scrambling code sequence configured for the UE; an initialization code of the cell-specific scrambling code sequence is determined according to an identity of the cell in which the UE is located; an initialization code of the cell group-specific scrambling code sequence is determined according to an identity of the cell group. As such, the UE can restrain DRS interferences between different cells when receiving the DRS and improve the precision of the channel estimation.2011-05-05
20110103251Configuration and indication methods of multicast/broadcast over a single frequency network frames and an identifying method used by a terminal - A configuration method and an indication method of MBSFN frames and an identifying method used by a terminal applied in a long term evolution system are disclosed in the present invention, which include: an access network sends configuration parameters of the MBSFN frame to a mobile terminal determining whether the wireless frame received is an MBSFN frame according to the configuration parameters, the configuration parameters including a repetition period of the MBSFN frames distributed in system-set time. With the present invention, it could consume less bytes in system message to complete the configuration of the MBSFN sub-frames and could save system resources.2011-05-05
20110103252Method and Node for Decentralized Embedded Self-Optimization in a Broadband Access Network - A node in a broadband network having lines includes a network interface in communication with less than all of the lines. The node includes an embedded optimizer, a memory and processing unit in communication with the network interface which runs an optimization loop in the processing unit that monitors the lines in communication with the network interface so each line in communication with the network interface is individually optimized.2011-05-05
20110103253METHOD AND APPARATUS FOR PROVIDING POWER SAVING USING SUPERFRAMES - An approach is provided for providing sleep mode associated with a resource frame structure. A superframe that includes a plurality of frames that is partitioned into sub-frames is detected. A length of listening window (2011-05-05
20110103254Method and device for multi-user beamforming based on a frequency division duplex system - The present invention discloses an FDD (Frequency Division Duplex) system based multi-user beamforming method and device. The method comprises the steps of: when two or more user terminals are at respective AOAs (Angles of Arrival), determining a transmit weight of a downlink signal of each user terminal by using a null-widening algorithm, and storing the transmit weight in a network side; and, the network side grouping the user terminals based on AOA information reported by the user terminals, selecting a corresponding transmit weight for the downlink signal of each user terminal in each group based on the AOA information of the user terminals in the group, and transmitting the selected transmit weight after multiplying it by a downlink data stream of the user terminal corresponding to the transmit weight. The present invention can reduce the computation burden of the network side, enhance the efficiency of beamforming, and thus increase the capacity of the FDD system while ensuring the communication quality.2011-05-05
20110103255MULTI-INTERFACE COMMUNICATION DEVICE, TERMINAL, AND PATH SWITCHING METHOD - A router, if judging that a routing function is impossible to execute, sends out a connection instruction message including the address of a terminal on a local network terminating the relaying flow, to another router to solicit switching. The router having received the connection instruction message starts a process for connecting with an external network while executing a process for link connection with a terminal, and then sends out a connection completion notice message when the connection with both the external network and the terminal is established. This process enables the router to switch a path rapidly.2011-05-05
20110103256Detecting Irregular Retransmissions - A packet trace is received. Transmitted bytes and retransmitted bytes are identified in the packet trace. Upon identifying the transmitted bytes and the retransmitted bytes in the packet trace, one or more time-rate pairs are determined from the packet trace. The time-rate pairs are plotted on a rate tracking graph.2011-05-05
20110103257METHOD AND APPARATUS FOR DISCOVERING DEVICES IN A NETWORK - In one embodiment, a method includes identifying whether there is a first device in a network that is expected to be associated with a discovery protocol but does not have the discovery protocol turned on. The method also includes providing a notification to a management arrangement when the first device is identified. The management arrangement manages the network, and the notification indicates that the first device is expected to be associated with the discovery protocol but does not have the discovery protocol turned on.2011-05-05
20110103258SELECTIVE NETWORK MERGING - Subsets of isolated communications networks are selectively merged without merging the entire isolated communications networks, and devices are imported across isolated communications networks without merging the isolated communications networks. The presently disclosed technology provides for improved scalability, performance, and security in logical networks spanning two or more physical communications networks.2011-05-05
20110103259METHODS AND APPARATUS FOR CONFIGURING A VIRTUAL NETWORK SWITCH - In one embodiment, a method includes sending a configuration signal to a virtual network switch module within a control plane of a communications network. The configuration signal is configured to define a first network rule at the virtual network switch module. The method also includes configuring a packet forwarding module such that the packet forwarding module implements a second network rule, and receiving status information from the virtual network switch module and status information from the packet forwarding module. The status information is received via the control plane.2011-05-05
20110103260BINDING CACHE CREATING METHOD, BINDING CACHE CREATING SYSTEM, HOME AGENT, AND MOBILE NODE - Disclosed is a technique to, when a mobile node including a plurality of interfaces roams in a home domain, reduce signaling to create a client-based binding cache in a home agent and manages the same. When a MN (2011-05-05
20110103261METHOD FOR ESTABLISHING DIAMETER SESSION FOR PACKET FLOW BASED CHARGING - A method and system for establishing a Diameter session between a TPF and a CRF is disclosed. The Diameter session between the TPF and CRF can be established for each bearer of each subscriber. The Diameter session can also be established for the bearers with a same APN of each subscriber. The Diameter session can also be established with respect for all the bearers of a subscriber. The method and system improves the mechanism for establishing Diameter sessions and makes the implementation of the charging flow more integrated. Moreover, the multiple ways for establishing Diameter sessions between the TPF and the CRF provided in the present invention can be flexibly selected according to the practical charging applications.2011-05-05
20110103262MULTI-LEVEL INTERCONNECTION NETWORK - A method and system for providing a multi-level interconnection network is provided. A multi-level interconnection network comprises basic cells that are aggregated into higher level cells at each level of the network. At the first level, the basic cells are aggregated into first level cells. Each first level cell is an aggregation of a number of basic cells that is one more than the number of devices in a basic cell. The basic cells of a first level cell are fully connected; that is, each basic cell has a first level link or connection to each other basic cell. In a first level cell, each device of a basic cell has a first level link to each other basic cell. The multi-level interconnection network has higher level cells that are aggregations of lower level cells in a similar manner.2011-05-05
20110103263Implementation of VPNs over a Link State Protocol Controlled Ethernet Network - Nodes on a link state protocol controlled Ethernet network implement a link state routing protocol such as IS-IS. Nodes assign an IP address or I-SID value per VRF and then advertise the IP addresses or I-SID values in IS-IS LSAs. When a packet is to be forwarded on the VPN, the ingress node identifies the VRF for the packet and performs an IP lookup in customer address space in the VRF to determine the next hop and the IP address or I-SID value of the VRF on the egress node. The ingress node prepends an I-SID or IP header to identify the VRFs and then creates a MAC header to allow the packet to be forwarded to the egress node on the link state protocol controlled Ethernet network. When the packet is received at the egress node, the MAC header is stripped from the packet and the appended I-SID or IP header is used to identify the egress VRF. A customer address space IP lookup is then performed in the identified VRF on the egress node using the information in the client IP header to determine how to forward the packet. Customer reachability information within a VPN may be exchanged between VRFs using iBGP, or directly by using link state protocol LSAs tagged with the relevant I-SID.2011-05-05
20110103264METHOD AND APPARATUS FOR PEER DISCOVERY IN A WIRELESS COMMUNICATION NETWORK - Apparatus and methods of peer discovery in a communications network include generating a discovery request configured to identify a Tunneled Direct Link Setup (TDLS) capable peer device, transmitting the discovery request, and determining if a discovery response is received in response to the discovery request. In an aspect, the apparatus and methods may encapsulate the discovery request in a data frame such that the discovery request is transparent to an access point. In other aspects, the apparatus and methods may form the discovery request by appending TDLS capability information to a probe request. Additionally, the apparatus and methods may include determining if a discovery response is received in response to the discovery request. Thus, the apparatus and methods provide a deterministic method of peer discovery, so that a list of potential peers that are TDLS capable can be available before attempting a TDLS direct link setup.2011-05-05
20110103265METHOD AND APPARATUS TO FACILITATE USING A FEDERATION-BASED BENEFIT TO FACILITATE COMMUNICATIONS MOBILITY - While facilitating (2011-05-05
20110103266SYSTEM AND METHOD FOR PROVIDING LOCATION AND ACCESS NETWORK INFORMATION SUPPORT IN A NETWORK ENVIRONMENT - A method is provided in one example embodiment and includes communicating location and access network information for an end user to a policy and charging rules function (PCRF) element that is coupled to a network element. The network element receives packets for a communications flow from the end user if the flow is initiated through a wireless network and through a wireline network. In more specific embodiments, the location and access network information is used to initiate one or more applications for the end user. The method could also include communicating to an application function that the end user has attached to one of the networks, has been assigned an Internet Protocol (IP) address, and the location and access network information for the end user.2011-05-05
20110103267ASYMMETRIC FULL DUPLEX COMMUNICATION INCLUDING DEVICE POWER COMMUNICATION - An active transceiver circuit (2011-05-05
20110103268AIRCRAFT COMMUNICATION SYSTEM - The present invention concerns an aircraft communication system (2011-05-05
20110103269WIRELESS COMMUNICATION SYSTEM AND RELAY STATION AND WIRELESS COMMUNICATION DEVICE THEREOF - A wireless communication system and a relay station and a wireless communication device thereof are provided. The wireless communication system includes at least a base station, at least a relay station, and at least a wireless communication device. The relay station is wirelessly connected to the base station. The wireless communication device is wirelessly connected to the relay station. At least two uplinks of the wireless communication system are inband or on the same carrier, and at least two downlinks of the wireless communication system are outband or on different carriers.2011-05-05
20110103270APPARATUS AND METHOD FOR CONFIGURING FRAME STRUCTURE IN FDD WIRELESS COMMUNICATION SYSTEM - An apparatus and method for reducing an overhead resulting from an transition gap in a Relay Station (RS) of a Frequency Division Duplex (FDD) wireless communication system are provided. The method includes determining transmission/reception transition time information through a negotiation with an upper node, identifying a signal delay time with the upper node, identifying a first reference time (R_Idle_Time), determining an overhead of a DownLink (DL) frame and an overhead of an UpLink (UL) frame resulting from transmission/reception transition in consideration of at least one of the transition time information, the signal delay time, the first reference time, and a second reference time (Idle_Time), and performing communication based on the overhead of the DL frame and the overhead of the UL frame.2011-05-05
20110103271CALIBRATION APPARATUS AND METHOD FOR MULTICELL MULTIPLE INPUT MULTIPLE OUTPUT TRANSMISSION IN MULTIPLE ANTENNA SYSTEM - A calibration apparatus and a calibration method for multicell Multiple Input Multiple Output (MIMO) transmission in a multiple antenna system are provided. More particularly, an operating method of a Mobile Station (MS) for performing calibration for multicell MIMO transmission in a multiple antenna system includes negotiating a multi-Base Station (BS) joint processing with a BS, receiving a control message including information instructing multi-BS calibration for sounding based on the multi-BS joint processing, from the BS; when receiving the control message involving the multi-BS joint processing, generating a second sounding sequence by mapping estimated phases of downlink channels per subcarrier of BSs to a first sounding sequence allocated from the BS, and transmitting the second sounding sequence, including the phases of the downlink channels per subcarrier, over a sounding symbol interval with respect to each of the BSs involving the multi-BS joint processing. Hence, feedback overhead in the calibration of the multicell MIMO transmission can be reduced.2011-05-05
20110103272METHOD FOR TRANSMITTING THE PDCCH SIGNAL - The present invention provides a method for transmitting a PDCCH (physical downlink control channel) signal, when the number of available resource blocks of the downlink bandwidth in a radio frame is less than or equal to k, 2 symbols are fixedly used to transmit the physical downlink control channel, wherein k is a natural number. The present invention further provides another method for transmitting a PDCCH signal. In a TDD Long Term Evolution system, when the number of available resource blocks of the downlink bandwidth in a radio frame is less than or equal to k and the uplink/downlink switching period is 10 ms, the transmitting end selects 2, 3 or 4 symbols to transmit the PDCCH signal in subframe 2011-05-05
20110103273FREQUENCY DIVISION DUPLEX (FDD) RETURN LINK TRANSMIT DIVERSITY SYSTEMS, METHODS AND DEVICES USING FORWARD LINK SIDE INFORMATION - A Frequency Division Duplex (FDD) wireless terminal includes spaced-apart antennas that are configured to transmit over a return link and to receive over a forward link that is spaced apart from the return link in frequency. The FDD wireless terminal is configured to selectively refrain from transmitting over the return link from at least one of the spaced-apart antennas of the FDD wireless terminal in response to differentials in forward link power that is received at the spaced-apart antennas of the FDD wireless terminal, that are caused, for example, by blocking appendages of a user of the wireless terminal. Related methods are also described.2011-05-05
20110103274SIGNAL REPEATER SYSTEM ARRANGEMENT FOR STABLE DATA COMMUNICATION - Signal repeater system of the general type that facilitates using various standards and various modulation types to improve properties with various infrastructure, in particular power grid systems.2011-05-05
20110103275HIGH SPEED DATA TRANSMISSION METHOD AND CORRESPONDING DEVICES - This invention relates to a method for the transmission using the half-duplex mode of a data signal from a first transmission/reception device to a second transmission/reception device, called the remote device, comprising a logical coding step in which at least two distinct transmission times are associated with two respective statuses of the data signal to transmit. The method is characterised in that it comprises the generation by the first device of a signal (2011-05-05
20110103276METHOD FOR TRANSMITTING UNIVERSAL SERIAL BUS DATA AND APPARATUS USING THE SAME - The present invention discloses a universal serial bus data transmission method. The universal serial bus data transmission method comprises the steps of: obtaining a time interval in accordance with a size of a buffer and a transfer rate of a wireless communication chip; sending data to the wireless communication chip; and, if the wireless communication chip responds with a negative acknowledge packet, re-sending the data to the wireless communication chip after the time interval.2011-05-05
Website © 2025 Advameg, Inc.