| 14th week of 2011 patent applcation highlights part 16 |
| Patent application number | Title | Published |
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| 20110080892 | Architecture For Termination At Access Device - A method is provided for handing over a user equipment (UE). The method includes a donor access node with which the UE is in communication via a relay node receiving UE context information from the relay node. The method further includes the donor access node using the UE context information to identify data packets that belong to the UE. | 2011-04-07 |
| 20110080893 | Methods and apparatus for wireless communication - One method of wireless communication involves acknowledging that an anchor base station received a handover indication signal. Another method involves: receiving, from base stations of an active set, offset signals identifying a respective differences in time between a reference time and respective times when the base station received a ranging signal from a mobile station; and transmitting, to the mobile station, a ranging control signal in response to the respective offset signals. Another method involves transmitting, to a mobile station in response to an active set signal, a system configuration information signal including system configuration information of a base station in an active set. Another method involves determining an uplink control channel power parameter in response to channel condition signals received from base stations in an active set. Another method involves transmitting a control signal to base stations in an active set on respective control channels. Apparatuses are also disclosed. | 2011-04-07 |
| 20110080894 | MOBILE COMMUNICATION METHOD, MOBILE STATION, AND WIRELESS ACCESS NETWORK APPARATUS - When a mobile station (UE) is camping on a system of the LTE scheme, a function (EMM) is configured to transmit a service request signal including a “CSFB” to an MME; the NNE is configured to transmit setup information including a “CSFB” to an eNB in response to the service request signal transmitted by the function (EMM); the eNB is configured to transmit, to a function (AS) , instruction information instructing to select a cell in a system of the WCDMA/GSM scheme in response to the setup information transmitted by the MME; | 2011-04-07 |
| 20110080895 | HANDOVER CONTROL METHOD, CELL RESELECTION METHOD AND MOBILE STATION - A handover control method comprises: a step in which a mobile station measures radio qualities in a plurality of different frequency cells at predetermined measurement intervals; and a step in which the mobile station, when determining that the radio quality in a specific frequency cell satisfies a report condition, starts up a timer for measuring the time during which the radio quality in the specific frequency cell continues to satisfy the report condition and, when the timer has expired, transmits to a radio base station a measurement report including the radio quality in the specific frequency cell. The mobile station, after determining that the radio quality in a second frequency cell satisfies the report condition and starting up a second timer, stops the second timer and starts up a first timer when determining that the radio quality in a first frequency cell having a higher priority than that of the second frequency cell satisfies the report condition. | 2011-04-07 |
| 20110080896 | METHOD AND APPARATUS FOR MITIGATING DOWNLINK CONTROL CHANNEL INTERFERENCE | 2011-04-07 |
| 20110080897 | Communications resource management - A communications resource management system. The system includes a first module for prioritizing incoming messages and a second module for steering the messages in response to the prioritization by the first module. The first module assigns a message priority to each message based on a plurality of parameters such as mission mode, message type, and timeliness factor. The second module selects the most optimal communications resource for the message with the highest message priority by assigning a transmitter priority to each communications resource based on a plurality of factors such as estimated message arrival time, availability, and waveform compatibility. The message with the highest message priority is steered to the communications resource with the highest transmitter priority at the moment the message is sent. The first and second modules are each implemented using decision tree logic. | 2011-04-07 |
| 20110080898 | MILLIMETER-WAVE COMMUNICATION STATION AND METHOD FOR MULTIPLE-ACCESS BEAMFORMING IN A MILLIMETER-WAVE COMMUNICATION NETWORK - Embodiments of a millimeter-wave communication station and method for multiple-access beamforming in a millimeter-wave network are generally described herein. In some embodiments, an initiating station performs multiple-access beamforming with one or more responding stations by announcing a number of sector-sweep (SS) slots of a beamforming training (BFT) period and a number of SS frames of each SS slot. One or more SS frames are received from one or more of the responding stations within one of the SS slots of the BFT period. The initiating station transmits one or more SS feedback frames to the responding stations within the one SS slot to indicate an antenna configuration to the responding stations for communication with the initiating station. The responding stations transmit a limited number of SS frames per SS slot based on the number of SS frames announced by the initiating station and transmit any additional SS frames in a next SS slot of the beamforming training period. Each SS frame contains an indication to the initiating station of an antenna configuration for communication with the responding station, | 2011-04-07 |
| 20110080899 | Method and System for Extending a Mobile Directory Number to a Landline-Based Voice-Over-Packet Network - A mobile station is coupled to a docking station that has a landline connection to a packet-switched network. In response, the mobile station's mobile directory number (MDN) is registered, via the packet-switched network, as being accessible via the docking station. As a result, when a call is placed to the MDN, the call is routed to the docking station via the packet-switched network. Communication devices coupled to the docking station may then be used to answer the call and/or participate in the call. | 2011-04-07 |
| 20110080900 | Cellphone Wlan Access Point - An integrated cell phone/WLAN AP for providing cell phone functionality and cellular-based data connectivity to a WLAN enabled device. The cell phone AP comprises a WLAN radio, a WLAN AP coupled to the WLAN radio, a cellular radio coupled to the WLAN radio, for communicatively connecting to a cellular system having a cellular-based data service and passing data between the WLAN-enabled device and the cellular system, a cell phone function block coupled to the cellular radio for providing conventional cell phone functionality, and a power supply. | 2011-04-07 |
| 20110080901 | Concatenating precoder selection for OFDMA-based multi-BS MIMO - A method of concatenating precoder selection is provided for OFDMA-based multi-BS multiple-input multiple-output (MIMO). A cell-edge mobile station first determines a precoding matrix indexes (PMIs) for a serving base station and one or more cooperative base stations to optimize system performance. The mobile station then determines a plurality of corresponding weight factors for each of the base stations to further optimize system performance. The mobile station recommends the selected PMIs and weight factors to the serving base station, which shares the PMIs and weight factors with the cooperative base stations. Each base station then applies precoding using the recommended PMIs and weight factors. The weight factors are quantized to reduce computation complexity and to facilitate information feedback. In one embodiment, the weight factors are determined based on a pre-defined 3-bit uniform phase quantization rule. The concatenated precoder leads to large performance gain without introducing high computation complexity. | 2011-04-07 |
| 20110080902 | APPARATUS AND METHOD FOR ACQUIRING A PREAMBLE IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS MOBILE TERMINAL - A preamble acquisition apparatus includes a first PN code generation unit for generating a first PN code having a bit string, a first correlation calculation unit for correlating a received frequency domain preamble signal with the first PN code within a first correlation range to generate a first correlation value, a first correlation value comparison unit for comparing the first correlation value with a first threshold value, a second PN code generation unit for generating a second PN code, a second correlation calculation unit for correlating the received frequency domain preamble signal with the second PN code within a second correlation range to generate a second correlation value, and a preamble acquisition determination unit for comparing the second correlation value with a second threshold value to determine whether to acquire the preamble. The bit values of the first PN code are located in the second PN code. | 2011-04-07 |
| 20110080903 | CODING A CONTROL MESSAGE WITH DETERMINED DATA CODE BLOCK REPETITION - A method for coding control data with user data repetition is disclosed. Bits in user data may be removed. Bits in control data may be repeated to increase a number of bits in the control data. A number of bits in the user data that is the same as the number of bits in the control data may be copied. The copied user data bits may be added to the control data. The user data and the control data may be multiplexed. | 2011-04-07 |
| 20110080904 | Subscriber Line Interface Circuitry with POTS Detection - A method of controlling a subscriber line interface circuit (SLIC) includes performing a plain old telephone services (POTS) detect at a customer premises using a customer premises SLIC. Injection of POTS services by the customer premises SLIC is disabled, if POTS is detected. | 2011-04-07 |
| 20110080905 | METHOD AND INTERNET PROTOCOL SHORT MESSAGE GATEWAY (IP-SM-GW) FOR PROVIDING AN INTERWORKING SERVICE BETWEEN CONVERGED IP MESSAGING (CPM) AND SHORT MESSAGE SERVICE (SMS) - A method and an IP-SM-GW for providing an interworking service between CPM and SMS are provided. The method comprises the steps of receiving a chat session invitation, in a IP-SM-GW, the chat session invitation originating from a CPM UE and being sent toward an SMS enabled UE. Assigning an identifier with the chat session in the IP-SM-GW and sending an invitation acknowledgement from the IP-SM-GW to the CPM UE. Receiving a message containing data, within the chat session, in the IP-SM-GW, from the CPM UE and being sent to the SMS enabled UE, formatting the message into an SMS message, wherein the identifier assigned to the chat session is inserted as a sender of the SMS message to ensure that an SMS response is sent back to the IP-SM-GW and forwarding the formatted SMS message to the SMS enabled UE. | 2011-04-07 |
| 20110080906 | METHOD FOR COLLECT CALL SERVICE BASED ON VOIP TECHNOLOGY AND SYSTEM THEREOF - One embodiment of the present invention provides a collect call method and system thereof, more particularly, in order to charge the called party with a uniform toll for collect call, which is determined by only the type and location of called party terminal. In one embodiment, the collect call method, system and a counsel service providing method use a free VoIP network for part of the voice call link and a charge PSTN network for the rest of the voice call link. In one embodiment, if the first link corresponding to the collect call request is established, the collect call switch calls the called party terminal to establish the second link, and billing on the second link is initiated. | 2011-04-07 |
| 20110080907 | Method and Apparatus for Specifying IP Termination in a Network Element - IP applications may be hosted on processors other than the processor on which their associated routing entity is hosted by causing the routing context to be extended to the new processor and causing IP termination to occur at the new processor. Applications may define policies specifying packet attributes and actions to be taken on matching packets, so that packets matching the policy may be directed to a processor hosting the application rather than a processor hosting the routing entity. A steering policy manager may be implemented to receive policies from the applications, verify the policy format and uniqueness vis-à-vis previously implemented policies, and implement the policies by passing the policies to one or more steering policy agents. Filters may be programmed into the data plane or the control plane to cause IP termination to occur on the processor hosting the application. | 2011-04-07 |
| 20110080908 | APPARATUS AND METHOD FOR CONTROLLING MULTICAST IN MULTI HOP NETWORKS - Disclosed is a multicast controlling apparatus and method in a multi hop network. The multicast controlling apparatus in the multi hop network includes a packet determining unit to receive a packet from a group management query device or a station, and to determine whether the received packet is a group management protocol packet, a packet type distinguishing unit to distinguish a type of the received packet when the received packet is determined as the group management protocol packet, and a packet transmitting unit to transmit the packet to a second port excluding a first port that receives the query message, when the received packet is determined as the query message. | 2011-04-07 |
| 20110080909 | METHOD AND APPARATUS FOR CONTROLLING RECEIVING IP MULTICAST SERVICES BASED ON NETWORK - Provided is a network-based Internet Protocol (IP) multicast service reception controlling apparatus and method. Data corresponding to a multicast channel may be controlled based on a snooping table. The snooping table may be updated based on the service profile. The snooping table may be updated based on a control message, and the control message may be based on whether a user is subscribed to the multicast channel. Whether data corresponding to the multicast channel is to be transmitted may be determined based on whether the data is being transmitted to another user in response to a request from the other user. | 2011-04-07 |
| 20110080910 | COMMUNICATION APPARATUS HAVING A PLURALITY OF NETWORK INTERFACES, METHOD OF COMMUNICATION BY THE COMMUNICATION APPARATUS, AND STORAGE MEDIUM - A communication apparatus which is capable of performing multicasting or broadcasting using a user-desired network interface. An MFP implementing the communication apparatus includes a plurality of network interfaces and performs multicasting or broadcasting via at least one of the network interfaces. A controller unit provides an application programming interface to an application that operates on the MFP. An operator of the MFP operates an operation unit to set a transmission condition for transmitting a multicast packet and a broadcast packet via a predetermined network interface. When a plurality of active network interfaces are detected, one of the plurality of detected active network interfaces which satisfies the set transmission condition is selected and multicasting or broadcasting is performed via the selected network interface. | 2011-04-07 |
| 20110080911 | Forwarding of Packets to a Same Location Having a Same Internet Protocol (IP) Address Embedded in a Different Advertised Route - Routes advertised in a network may include an Internet Protocol (IP) address and one or more values to distinguish the route from other route(s) including the same IP address. Routes in a same context (e.g., within a same Virtual Private Network or for an entire network) with a same IP address are considered to refer to a same destination. When these routes are associated with different paths through a network, these different paths can be used to forward traffic for packets associated with routes including a same IP address (in a same context), particularly in response to a network problem. | 2011-04-07 |
| 20110080912 | TCP RECEIVER ACCELERATION - A method for processing network information may include performing by one or more processors and/or circuits integrated within a single chip, classifying a header portion of a received packet based on connection context information within the received packet. The connection context information may be acquired by the single chip from a memory external to the single chip. The connection context information for the received packet may be updated based on the classifying. At least a payload portion of the received packet may be communicated to a destination, based on the updated connection context information. The classifying, updating and communicating may be performed asynchronously. The header portion of the received packet may be parsed and/or validated. The connection context information of the received packet may be evaluated. | 2011-04-07 |
| 20110080913 | APPARATUS AND METHOD FOR LAYER-2 TO 7 SEARCH ENGINE FOR HIGH SPEED NETWORK APPLICATION - High-speed networking application equipments with a layer-2 to layer-7 hardware search engine and method are with flexibility and performance improvement. The multi-layer switches/routers, network address translation (NAT) gateway, firewall/VPN router and network attached storage (NAS) may use the search engine for fast and efficient search requirement. | 2011-04-07 |
| 20110080914 | ETHERNET TO SERIAL GATEWAY APPARATUS AND METHOD THEREOF - Provided is an Ethernet-to-serial gateway apparatus including: a buffer manager to verify a characteristic of a data packet received via an Ethernet interface, and to thereby select a buffer for storing the data packet, and to store the data packet in the selected buffer; a packet scheduler to extract a data packet from the buffer according to a predetermined policy; a packet distributor to verify a destination address of the extracted data packet, and to thereby obtain serial interface information associated with at least one target apparatus to which the extracted data packet is transmitted; and a serial communication unit to transmit the extracted data packet to the at least one target apparatus via a corresponding serial interface based on the serial interface information. | 2011-04-07 |
| 20110080915 | AUTOMATED VLAN ASSIGNMENT TO DOMAIN IN RING NETWORK - In general, the disclosure describes network techniques that may automatically assign virtual local area networks (VLANs) to domains in a ring network. In one example, a method includes receiving, by a control node in a ring network, a plurality of data units transmitted by a plurality of transport nodes on the ring network, each data unit comprising profile information, and automatically assigning a VLAN to one of a plurality of domains established on the ring network based on the profile information. | 2011-04-07 |
| 20110080916 | CONFIGURABLE FRAME PROCESSING PIPELINE IN A PACKET SWITCH - Highly configurable frame processing pipelines are enabled in packet switches in an efficient manner which satisfies stringent area and power requirements. Frame processing pipelines are described that enable dynamic processing of different types of frames on a per frame basis. | 2011-04-07 |
| 20110080917 | METHOD, PROCESS AND SYSTEM FOR SHARING DATA IN A HETEROGENEOUS STORAGE NETWORK - A method, process and system of controlling the transmission of data in a heterogeneous environment having mainframe based storage using FICON and an open system based storage using FC. The invention bridges the heterogeneous environment while maintaining DASD/Disk neutrality. The bridge is a gateway programmed to permit applications residing on the mainframe or open system to map logic paths thereby eliminating or reducing the need to store data prior to transmission. The gateway is able to appear to the first storage device as a standard CTC connection to a mainframe, while appearing to the open system as a number of SCSI tape drives. | 2011-04-07 |
| 20110080918 | POWER OVER ETHERNET MANAGEMENT DEVICES AND CONNECTION BETWEEN ETHERNET DEVICES - In one embodiment, a connection is maintained between a pair of ethernet ports that have circuitry connected in series with the ports and receiving power-over-ethernet (PoE) from one of the ports, by providing a controllable bypass circuit coupled to the pair of ethernet ports in parallel with the circuitry receiving power-over-ethernet, sensing a preselected condition, and opening and closing the bypass circuit in response to the presence or absence of the preselected condition. Power sourcing equipment (PSE) may to supply the one of the ports with power over ethernet, and the circuitry may transports data between the pair of ethernet ports. The circuitry may also supply the switch with a control signal in response to the detection of the preselected condition. | 2011-04-07 |
| 20110080919 | LOW-POWER POLICY FOR PORT - Various example embodiments are disclosed. According to an example embodiment, a method may include determining, by a port processor, a buffer length based on an amount of data stored in a port controlled by the port processor, comparing the buffer length to a low-power buffer threshold, determining a link utilization based on a number of packets transmitted by the port, comparing the link utilization to a link utilization threshold, and placing the port into a low-power state based on the comparison of the buffer length to the low-power buffer threshold and the comparison of the link utilization to the link utilization threshold. | 2011-04-07 |
| 20110080920 | Flexibly Integrating Endpoint Logic Into Varied Platforms - In one embodiment, the present invention is directed to an integrated endpoint having a virtual port coupled between an upstream fabric and an integrated device fabric that includes a multi-function logic to handle various functions for one or more intellectual property (IP) blocks coupled to the integrated device fabric. The integrated device fabric has a primary channel to communicate data and command information between the IP block and the upstream fabric and a sideband channel to communicate sideband information between the IP block and the multi-function logic. Other embodiments are described and claimed. | 2011-04-07 |
| 20110080921 | LOGICAL ADDRESSES - A method and apparatus for processing message includes forming a logical address upon a creation of a channel of a group communication protocol at a logical address generator of a server. The logical address includes a unique identifier (UUID) associated with a logical name. The UUID created upon connecting the channel, and deleted upon disconnecting the channel. A mapping between UUIDs and physical addresses of members of the group is stored in a cache of a member of the group. | 2011-04-07 |
| 20110080922 | DSL TERMINAL-EXCHANGE DEVICE CONNECTING SYSTEM AND METHOD - A network device includes a media gateway to receive and process a voice over digital subscriber line (VoDSL) communication to generate voice data in a predetermined format; a terminating unit to receive another type of voice communication and output voice data in the predetermined format; and a control unit to receive the generated voice data from the media gateway and the outputted voice data from the terminating unit, where the network device exchanges at least one of the VoDSL communication to the other type of voice communication or the other type of voice communication to the VoDSL communication. | 2011-04-07 |
| 20110080923 | Interference Suppression for CDMA Systems - Interference is cancelled from a baseband signal by synthesizing interference from estimated symbols in interfering subchannels. The estimated symbols are hard-coded, soft weighted, or zeroed, depending on the value of an estimated pre-processed signal-to-interference-and-noise ratio (SINR) in each subchannel in order to maximize a postprocessed SINR. The estimated pre-processed SINR is obtained from averages of estimated symbol energies and estimated noise variances, or from related statistical procedures. | 2011-04-07 |
| 20110080924 | METHOD FOR TRANSMISSION OF TIME DIVISION MULTIPLEXED PILOT SYMBOLS TO AID CHANNEL ESTIMATION, TIME SYNCHRONIZATION, AND AGC BOOTSTRAPPING IN A MULTICAST WIRELESS SYSTEM - Systems and methods are provided for the transmission of waveforms to aid channel estimation, timing synchronization, and AGC bootstrapping in a wireless network. The method includes inserting at least one TDM pilot symbol located at a transition between wide area and local area waveforms to facilitate decoding of the transmission block. | 2011-04-07 |
| 20110080925 | Low power, high speed multi-channel data acquisition system and method - In a data acquisition system, digitizing circuitry ( | 2011-04-07 |
| 20110080926 | Laser irradiation system - A laser irradiation system includes a laser configured to irradiate light, a laser transfer unit configured to transfer the laser along a target irradiation area, the target irradiation area being divided into a plurality of sections, a laser transfer controller configured to control a speed of the laser in each of the plurality of sections of the target irradiation area, a laser output controller configured to control an output level of the laser in each of the plurality of sections of the target irradiation area, and a main controller configured to control the laser output controller and the laser transfer controller. | 2011-04-07 |
| 20110080927 | LIGHT SOURCE, LIGHT SOURCE DEVICE, LASER IMAGE FORMING DEVICE AND INTEGRATED CIRCUIT - The light sources according to the present invention include a laser oscillator including a semiconductor laser, a drive circuit for the semiconductor laser, an ACC circuit, an APC circuit, and a switch, and a starting drive current storage device, and is controlled in such a manner that the driving current at the start of the laser driving be always constant, and after the start of the lighting, it is switched to the APC operation to carry out the power control of the laser light output. | 2011-04-07 |
| 20110080928 | LASER DEVICE - To provide a laser device having high strength against mechanical stress. The laser device includes: a laser element; a plate-like lead frame including through-holes, and on whose front plane the laser element is mounted; lead terminals; trenches provided between an end of the lead frame in a laser emission direction of the laser element and the through-holes; and a resin dam formed on the front plane of the lead frame using a molding resin to protrude in an area surrounding the laser element including positions of the through-holes, and having an open part in the laser emission direction. The molding resin further fills the through-holes and the trenches, and bonds the lead frame and the resin dam by sealing together a part of each of the lead terminals and a part of the front plane and the back plane of the lead frame, in a vicinity of the lead terminals. | 2011-04-07 |
| 20110080929 | SEMICONDUCTOR LASER DEVICE AND METHOD FOR FABRICATING THE SAME - A semiconductor laser device includes a substrate | 2011-04-07 |
| 20110080930 | Highly Power-efficient and Broadband Quantum Cascade Lasers - The present invention relates generally to highly power-efficient quantum cascade sources, such as highly power-efficient quantum cascade lasers having ultra-strong coupling between injector and active regions which may be configured to provide broadband quantum cascade lasers. | 2011-04-07 |
| 20110080931 | CIRCULAR SEMICONDUCTOR LASERS HAVING LATTICES FOR VERTICAL EMISSION - A semiconductor laser includes a laser resonator ( | 2011-04-07 |
| 20110080932 | Laser diode and laser diode device - A laser diode capable of being easily mounted, and a laser diode device in which the laser diode is mounted are provided. A hole is disposed in a semiconductor layer, and a p-type electrode and an n-type semiconductor layer are electrically connected to each other by a bottom portion (a connecting portion) of the hole. Thereby, the p-type electrode has the same potential as the n-type semiconductor layer, and a saturable absorption region is formed in a region corresponding to a current path. Light generated in a gain region (not shown) is absorbed in the saturable absorption region to be converted into a current. The current is discharged to a ground via the p-side electrode and the bottom portion, and an interaction between the saturable absorption region and the gain region is initiated, thereby self-oscillation can be produced. | 2011-04-07 |
| 20110080933 | DEVICE FOR DETECTING TEMPERATURE VARIATIONS IN A CHIP - A device for detecting temperature variations of the substrate of an integrated circuit chip, including, in the substrate, implanted resistors connected as a Wheatstone bridge, wherein each of two first opposite resistors of the bridge is covered with an array of metal lines parallel to a first direction, the first direction being such that a variation in the substrate stress along this direction causes a variation of the unbalance value of the bridge. | 2011-04-07 |
| 20110080934 | MOVING OBJECT THERMOMETER - A moving object thermometer is provided which can precisely measure the surface temperature of a moving (travelling) measurement object, particularly, a small-diameter conductive wire. A first metallic wire | 2011-04-07 |
| 20110080935 | Channel Hopping Based Content Protection Having An Out-Of-Band Communication Band - One feature provides a method for transmitting content to a receiving device, by establishing channel hopping sequence information with the receiving device via a first communication band. The channel hopping sequence information is associated with a plurality of traffic channels within a second communication band. Moreover, the method entails transmitting the content to the receiving device through the plurality of traffic channels via the second communication band using a channel hopping scheme implemented according to the channel hopping sequence information. In one embodiment, establishing the channel hopping sequence information with the receiving device via the first communication band further includes: obtaining a channel hopping sequence key; and transmitting the channel hopping sequence key to the receiving device within the first communication band. | 2011-04-07 |
| 20110080936 | ORTHOGONAL SPREAD-SPECTRUM WAVEFORM GENERATION WITH NON-CONTIGUOUS SPECTRAL OCCUPANCY FOR USE IN CDMA COMMUNICATIONS - The technology in this application spreads a signal over an available discontinuous spectrum, such as a radio frequency band, so that the spread signal only occupies the non-contiguous spectrum. In this way, CDMA transmission and reception can be used in a fragmented or non-contiguous spectrum that otherwise would not be useable for direct sequence spreading. Spreading over non-contiguous portions of spectrum is preferably performed without producing unacceptable interference in portions of unavailable spectrum located between the allowed spectrum. By avoiding unacceptable interference in portions of unavailable spectrum located between the allowed spectrum, the unavailable spectrum may be used by other users or services. | 2011-04-07 |
| 20110080937 | TRANSMIT PSD CEILING IN PACKET-BASED OFDM SYSTEMS - Adjusted maximum transmit PSD levels have an effect on the SNR. If the ADC noise is assumed to be the limiting factor, then there can be a benefit for reducing the maximum transmit PSD level. For example, by lowering the maximum transmit PSD level from −50 dBm/Hz to −70 dBm/Hz results in an increase in SNR for subcarriers above 30 MHz. The SNR for subcarriers above 30 MHz can increase from 30 db (−80−(−110)) to 50 db (−80−(−130)). Therefore, by changing the maximum transmit PSD level, applying a ceiling on PSD mask, the aggregate sum of the available SNR's over the available subcarriers is increased, therefore increasing the obtainable OFDM data rate. In other words, a maximum transmit PSD mask can be used to lower the transmit PSD value of at least one subcarrier which results in an increase in SNR for at least one subcarrier. | 2011-04-07 |
| 20110080938 | VECTORED DSL CROSSTALK CANCELLATION - A vector DSL system includes a plurality of modems, which may be multi-port devices. Unprocessed user data is extracted from the modems and passed through a private vectoring data routing apparatus to one or more vectoring modules, such as vectoring cards. Each vectoring module includes one or more vector processors that include processing units configured to process the unprocessed user data on the basis of all modems' data for a given DSL tone grouping. Processing of the unprocessed user data removes the effects of FEXT from upstream and downstream user data and returns the processed user data to the modems using the vectoring data routing apparatus, which can be a specialized data transmission network utilizing one or more vector routers. | 2011-04-07 |
| 20110080939 | BASELINE WANDER COMPENSATION FOR PERPENDICULAR RECORDING - A tail estimate signal which includes noise associated with baseline wander is generated. The tail estimate signal is generated by processing an input signal using a detector to obtain one or more decisions. Using the one or more decisions, the tail estimate signal is generated. The tail estimate signal is removed from the input signal. | 2011-04-07 |
| 20110080940 | LOW LATENCY CACHEABLE MEDIA STREAMING - A low latency streaming system provides a stateless protocol between a client and server with reduced latency. The server embeds incremental information in media fragments that eliminates the usage of a typical control channel. In addition, the server provides uniform media fragment responses to media fragment requests, thereby allowing existing Internet cache infrastructure to cache streaming media data. Each fragment has a distinguished Uniform Resource Locator (URL) that allows the fragment to be identified and cached by both Internet cache servers and the client's browser cache. The system reduces latency using various techniques, such as sending fragments that contain less than a full group of pictures (GOP), encoding media without dependencies on subsequent frames, and by allowing clients to request subsequent frames with only information about previous frames. | 2011-04-07 |
| 20110080941 | INFORMATION PROCESSING APPARATUS AND METHOD - An information processing apparatus includes: on the basis of management information of a transcoding system of transcoding processing transcoding a format of a clip, an image generation mechanism generating a family tree being an image representing the clip by a node and representing a relationship between the clips on the transcoding processing by a link; and a display control mechanism displaying the family tree generated by the image generation mechanism on a display screen. | 2011-04-07 |
| 20110080942 | Transmission apparatus and transmission method - A transmission apparatus includes: an encode section that encodes image data and is capable of controlling a generated code amount; a transmission section to wirelessly transmit the encoded image data; and a control section to detect a quality of a wireless transmission of the encoded image data and control, based on the detected quality, a wireless transmission rate as a transmission code amount of the transmission section per unit time and an image transmission rate as a generated code amount of the encode section per unit time, the image transmission rate being controlled within a first response time when being lowered and controlled within a second response time longer than the first response time when being raised. | 2011-04-07 |
| 20110080943 | VIDEO DATA COMPRESSION APPARATUS AND METHOD OF SAME - A video data compression apparatus with which compressed video data of suitable amounts of data can be produced and the time required for processing is short. The apparatus approximates a real difficulty data D | 2011-04-07 |
| 20110080944 | REAL-TIME VIDEO TRANSCODER AND METHODS FOR USE THEREWITH - A transcoder includes a direct transcoder that generates a first portion of a transcoded video stream by reusing a plurality of encoding parameters of a compressed video stream. A cascaded transcoder generates a second portion of the transcoded video stream by decoding the compressed video stream into video data in an uncompressed video format and by re-encoding the video data. A transcoding decision generator generates a transcoding indicator, based on the compressed video stream. A switching module selects the direct transcoder for the first portion of the transcoded video stream and the cascaded transcoder for the second portion of the transcoded video stream, based on the transcoding indicator. | 2011-04-07 |
| 20110080945 | APPARATUS AND METHOD FOR ADAPTING SCALABLE VIDEO CODING BITSTREAM - An apparatus and method for adapting a scalable video coding (SVC) bitstream is provided. The apparatus may include: a layer selection unit to select at least one quality layer from a plurality of quality layers contained in each of spatial layers of the SVC bitstream; a layer discarding unit to discard the at least one quality layer; and a layer dependency modification unit to modify a quality layer dependency between one or more quality layers remaining among the plurality of quality layers, or a spatial layer dependency between the plurality of spatial layers. Accordingly, it is possible to adapt the SVC bitstream where the entire quality of spatial layers is enhanced. | 2011-04-07 |
| 20110080946 | LOCALLY VARIABLE QUANTIZATION AND HYBRID VARIABLE LENGTH CODING FOR IMAGE AND VIDEO COMPRESSION - A coding method, apparatus, and storage media with instructions to carry out a method. The method operates on an ordered series of transform coefficients of a block of image data, and for a fixed quantization method, and includes quantizing and encoding the ordered series to form a coded bitstream. The quantizing and encoding uses one or more variable length code (VLC) mappings. The quantizing includes quantizing to have amplitude-1 at least one coefficient that would be quantized by the fixed quantization method to have zero amplitude, quantizing to have zero amplitude at least one coefficient that would be quantized by the fixed quantization method to have amplitude-1, and using the fixed quantization method to quantize any coefficient that is quantized by the fixed quantization method not to have zero amplitude, amplitude-1, or amplitude-2. | 2011-04-07 |
| 20110080947 | Line-Based Compression for Digital Image Data - A method of compressing digital image data is provided that includes selecting an entropy code for encoding a line of pixels in the digital image data, wherein the entropy code is selected from a plurality of variable length entropy codes, using spatial prediction to compute a pixel predictor and a pixel residual for a pixel in the line of pixels, and selectively encoding the pixel residual using one of the entropy code or run mode encoding. | 2011-04-07 |
| 20110080948 | METHOD AND SYSTEM FOR 3D VIDEO DECODING USING A TIER SYSTEM FRAMEWORK - A video receiver receives a layered and predicted compressed 3D video comprising a base view video and an enhancement view video. A portion of pictures in the received compressed 3D video are selected to be decoded for display at an intended pace. Pictures in the received compressed 3D video are generated based on a tier system framework with tiers ordered hierarchically according to corresponding decodability. Each picture in the base view and enhancement view videos belongs to one of the plurality of tiers. A picture in a particular tier does not depend directly or indirectly on pictures in a higher tier. Each tier comprises one or more pictures with the same coding order. The video receiver decodes the pictures with the same coding order in parallel, and adaptively decodes the selected pictures according to corresponding coding layer information. The selected pictures are determined based on a particular display rate. | 2011-04-07 |
| 20110080949 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - An image processing apparatus includes: a storage means for storing a decoded image, which is obtained by encoding pictures constituting a frame sequential, in which pictures of a first image and a second image each having a disparity are alternately arranged, and performing local decoding, as a reference picture which is referenced when a predicted image is created for use in temporally later predictive encoding; and a storage control means for performing storage control to control the storage of the reference picture in the storage means such that, from among the pictures which are encoded temporally earlier than a current picture in encoding process which is a picture to be encoded, and are capable of becoming reference pictures, a picture which is a picture of an image at the same viewpoint as the current picture in encoding process from among the first image and the second image and is closest to the current picture in encoding process in a display order is stored in the storage means. | 2011-04-07 |
| 20110080950 | AUTOMATIC SELECTION OF ENCODING PARAMETERS TO CONTROL LENGTH OF TIME TO ENCODE AND SEND DATA OVER NETWORK - Data processing including encoding and sending is disclosed, which includes: encoding data using a selected one of a plurality of parameter sets each of which has at least one encoding parameter; calculating a length of an assigned time not exceeding a time limit for an original data set to be sent, per each data sub-set; calculating an estimate of an individual processing time T | 2011-04-07 |
| 20110080951 | Image Encoding Method, Image Decoding Method, Image Encoding Apparatus, Image Decoding Apparatus, and Program - A technique for improving a compression rate without needing new determination information (encoding flag information) is provided. For compression of each area to be encoded, based on a skip mode (a process which does not compress information of the area to be encoded, but copies previous information of the area to be encoded), it is determined whether an existing predicted image generated by an existing encoding standard is used, or an interpolation predicted image newly generated by executing move searching between decoded images is used. | 2011-04-07 |
| 20110080952 | SYSTEM AND METHOD FOR ADAPTIVE INTRA REFRESH RATE SETTING IN A VIDEO ENCODER - A system and method for adaptive intra refresh rate setting for each video frame in a video encoder is disclosed. In one embodiment, a video encoding method includes computing channel induced distortion values at multiple intra refresh rates for a coded video frame as a function of channel loss and spatiotemporal content, computing source coding distortion values at the multiple intra refresh rates for the coded video frame as a function of the spatiotemporal content and an operating bit-rate, selecting an intra refresh rate value for one or more video frames subsequent to the encoded video frame as a function of the sum of the corresponding computed channel induced distortion values and the source coding distortion values, and encoding the one or more video frames using the selected intra refresh rate value. | 2011-04-07 |
| 20110080953 | Method for determining a filter for interpolating one or more pixels of a frame And Method And Device For Encoding Or Recoding A Frame - The invention is related to a method for determining a filter for interpolating one or more pixels comprised in a frame. The proposed method comprises the step of determining the filter based on other pixels in the remainder of the frame wherein a motion vector associated with said pixels has at least one motion parameter in common with another motion vector associated with said other pixels and the filter is determined such that a quality of an interpolation of said other pixels, said interpolation being determined by help of said determined filter, reaches or exceeds the quality of any other interpolation of said other pixels determinable by help of one of different filter candidates comprised in a filter candidate set. In determining the filter solely on different other pixels of the same frame, said method for determining a filter for interpolation allows for realization of a single pass encoding framework. | 2011-04-07 |
| 20110080954 | MOTION VECTOR PREDICTION IN VIDEO CODING - A method and apparatus is disclosed herein for motion vector prediction and coding. In one embodiment, the method comprises: deriving N motion vector predictors for a first block that has N motion vectors corresponding to N lists of reference frames and a current frame, including constructing one of the N motion vector predictors when a second block that neighbors the first block and is used for prediction has at least one invalid motion vector, where N is an integer greater than 1; generating N differential motion vectors based on the N motion vectors and N motion vector predictors; and encoding the N differential motion vectors. | 2011-04-07 |
| 20110080955 | METHOD AND APPARATUS FOR MOTION VECTOR PROCESSING - A method for processing a plurality of motion vectors is disclosed. The method includes determining a number of different block sizes in the video frame; and, performing a variable block size motion vector process if the number of different block sizes in the video frame is greater than one, the variable block size motion vector process comprising constructing a pyramid of motion vectors from the plurality of motion vectors, the pyramid having at least a first layer and a second layer of motion vectors, each of the first and second layers having a set of motion vectors based on a particular block size. An apparatus for performing the inventive method is also disclosed. | 2011-04-07 |
| 20110080956 | Reducing Memory Bandwidth for Processing Digital Image Data - A method for processing digital image data is provided that includes compressing a block of the digital image data to generate a compressed block, storing the compressed block in an external memory when a number of bits in the compressed block does not exceed a first compression threshold, and storing the block in the external memory when the number of bits in the compressed block exceeds the first compression threshold. | 2011-04-07 |
| 20110080957 | ENCODING ADAPTIVE DEBLOCKING FILTER METHODS FOR USE THEREWITH - A video filter includes a filter parameter generator receives a non-quantization coding parameter corresponding to video data and generates a plurality of deblocking filter parameters in response thereto. An adaptive deblocking filter filters the video data to generate processed video data, based on the plurality of deblocking filter parameters. | 2011-04-07 |
| 20110080958 | MULTIMEDIA SIGNATURE CODING AND DECODING - A method and apparatus for coding and decoding the fingerprint of a multimedia item such as video or audio is disclosed. A multimedia content temporal, such as a video segment or audio segment, is described by a coarse fingerprint and a plurality of fine fingerprints, each fine fingerprint corresponding to a temporal sub-interval of said temporal interval, said temporal sub-interval typically being smaller than said temporal interval. One or more fine fingerprints are encoded in a non-predictive way, with no reference to the temporally neighbouring signatures, and one or more fine fingerprints are encoded in a predictive way, from the temporally neighbouring signatures. The predictive encoding entails computing the difference between neighbouring fine fingerprints to make up a prediction difference matrix, scanning said prediction difference matrix into a one dimensional vector by vectorising along rows or along columns or along diagonals or along any suitable scanning pattern, and performing lossless encoding on the one dimensional vector by an appropriate method, preferably selected, at least in part, based on the scanning method used. | 2011-04-07 |
| 20110080959 | Video reference frame retrieval - A video data processing apparatus is provided comprising processing circuitry for performing video processing operations requiring access to video reference frames, and a memory management unit configured to translate virtual addresses into physical addresses. Translation circuitry is provided responsive to a memory access request for reference frame pixel data issued by the processing circuitry to perform a translation process on video reference frame information such that the set of input values for at least one hash function in the memory management unit comprises video reference frame identifier bits contained with the video reference frame information. This approach has been found to reduce the frequency of aliasing in the memory management unit when retrieving video reference frames. | 2011-04-07 |
| 20110080960 | METHOD AND SYSTEM FOR EFFICIENT TRANSMISSION OF ANTI-CAMCORDER VIDEO - In embodiments of the present principles, the transmission bit rate of a video stream including anti-camcorder measures can be reduced while maintaining anti-camcorder effects and video quality. In one embodiment, a segmentor is included to segment a portion of a frame, such as a pixel, into most significant bits and least significant bits. A representative LSB can be generated and employed for concatenation with each MSB value of a sample set of portions of frames. Use of the representative LSB values in lieu of LSB values of the sample set enables an efficient transmission bit rate, as the representative LSB value can have less bits than the LSB of an original portion and can be reused with a plurality of MSB values of a sample set of portions. | 2011-04-07 |
| 20110080961 | ITERATIVE PRECODER MATRIX COMPUTATION METHOD AND APPARATUS - Precoder weights employed at a base station which coordinates with other base stations to form a super-cell are determined by: (a) determining an initial downlink precoding matrix at the base station for a mobile station serviced by the base station in the super-cell; (b) revising a downlink receiver matrix associated with the mobile station based on the initial downlink precoding matrix; (c) transforming the downlink receiver matrix to an uplink precoder matrix associated with the mobile station; (d) revising an uplink receiver matrix associated with each base station in uplink communication with the mobile station based on the uplink precoder matrix associated with the mobile station; and (e) revising the initial downlink precoding matrix by transforming the uplink receiver matrix to a revised downlink precoding matrix. Steps (b), (c), (d) and (e) are repeated for a particular number of iterations to determine a final downlink precoding matrix for the mobile station. | 2011-04-07 |
| 20110080962 | System and Method for User Equipment Measurement Timing in a Relay Cell - A system and method for user equipment (UE) measurement timing in a relay cell are provided. A method for controller operations includes broadcasting a first pattern of time intervals to communications devices served by a controller, and for a communication device served by the controller, determining a second pattern for the communications device, where the second pattern is based on the first pattern, and transmitting the second pattern to the communications device. | 2011-04-07 |
| 20110080963 | IDENTIFICATION OF PACKET TRAFFIC TRANSMITTED BY VARIOUS DEVICES OPERATED IN MULTIPLE OVERLAPPED FREQUENCY BANDS IN PACKET-BASED OFDM SYSTEMS - Techniques for header encoding include encoding a plurality of bits using a forward error correction code, generating an FEC codeword comprising a plurality of encoded bits, and concatenating a first copy of the FEC codeword with a second copy of the FEC codeword, wherein the concatenating comprises cyclically shifting by two bits the second concatenated copy of the FEC codeword relative to the first concatenated copy of the FEC codeword, wherein the encoded bits of the first and second copies of the FEC codewords are modulated on at least one OFDM symbol. techniques for header decoding include receiving a plurality of encoded bits comprising at least two concatenated copies of an FEC codeword, decoding a first copy of the FEC codeword to generate a first plurality of decoded bits, and decoding a second copy of the FEC codeword to generate a second plurality of decoded bits. | 2011-04-07 |
| 20110080964 | ADAPTIVE CODEBOOK FOR BEAMFORMING IN LIMITED FEEDBACK MIMO SYSTEMS - A method for beamforming is described. The method includes generating a pseudo-random unitary matrix. A first codebook is rotated with the pseudo-random unitary matrix. The method includes generating a second codebook based upon the rotated codebook and a correlation matrix. A codeword is selected from the second codebook using a channel matrix. The correlation matrix is updated based upon the selected codeword. The method includes transmitting an index of the selected codeword in the codebook. The method includes receiving the codeword index. A codebook is consulted using the codeword index to locate a codeword. Beamforming is performed based upon the located codeword. An apparatus is also described. | 2011-04-07 |
| 20110080965 | METHOD AND SYSTEM FOR FEEDBACK OF CHANNEL INFORMATION - A base station is provided. The base station includes a transmit path circuitry configured to transmit downlink control information in a downlink control information (DCI) format to a subscriber station, and a receive path circuitry configured to receive multiple-input multiple-output (MIMO) feedback from the subscriber station in response to the downlink control information. The MIMO feedback from the subscriber station is determined by two or more codepoints in the DCI format. One of the two or more codepoints indicates a rank-limited single user multiple-input multiple-output (SU-MIMO) feedback corresponding to a rank up to a maximum rank. | 2011-04-07 |
| 20110080966 | BASE STATION APPARATUS, SEQUENCE ASSIGNING METHOD AND REFERENCE SIGNAL GENERATING METHOD - Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method divides R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell. | 2011-04-07 |
| 20110080967 | Methods and Arrangements in a Wireless Communication System for Producing Signal Structure with Cyclic Prefix - The present invention relates to methods and arrangements in a wireless communication system supporting cyclic-prefix insertion, using a symbol sequence comprising a number of samples for transmission over a radio channel that enables the handling of very large signal delay spreads. The symbol sequence is built up by a first symbol with CP and a second symbol with CP. The second symbol is a copy of the first symbol with the samples shifted in a way that makes the two adjacent symbols with CP match in regards to the sample order. The symbol sequence may also comprise a third symbol with CP or more, where the third symbol is a copy of the second symbol and with the samples shifted in analogy with the symbol shift described above. The resulting symbol sequence will thus appear as an extended continuous symbol thanks to the precise cyclic shift that matches adjacent symbols. This allows the receiver to place its FFT window anywhere during the extended symbol, e.g. at the end of the symbol sequence thus making it possible to handle a delay spread longer than the CP duration. It also allows to place e.g. two FFT windows and to combine the extracted signal into one SNR improved signal, while still handling a longer delay spread. | 2011-04-07 |
| 20110080968 | METHOD FOR TRANSMITTING CHANNEL QUALITY INFORMATION IN A MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM - A method for transmitting a CQI in a MIMO system is disclosed. A method for allowing a receiver to feed back a CQI value to a transmitter in a Multiple Input Multiple Output (MIMO) system includes, receiving a transmission (Tx) pilot signal for each Tx antenna from a base station (BS), measuring a first CQI value of a first codeword and a second CQI value of a second codeword on the basis of the pilot signal, and transmitting the first CQI value of the first codeword and the second CQI value of the second codeword to the base station (BS), wherein at least one of the first and second CQI values includes specific information capable of indicating a transmission restriction status of a corresponding codeword. | 2011-04-07 |
| 20110080969 | MULTI-GRANULAR FEEDBACK REPORTING AND FEEDBACK PROCESSING FOR PRECODING IN TELECOMMUNICATIONS - A communications system comprises a second device ( | 2011-04-07 |
| 20110080970 | Data Transmission in a Wide Area Mobile Network - Method and system for data transmission in a wide area mobile network supporting both MIMO User Equipments and non MIMO User Equipments, comprising:
| 2011-04-07 |
| 20110080971 | MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATION SYSTEM USING EXPLICIT FEEDBACK - A multiple input multiple output (MIMO) communication system using an explicit feedback is provided. In the MIMO communication system using the explicit feedback, a receiver may generate an explicit feedback vector by calculating an explicit channel matrix, and by vectorizing the explicit channel matrix or an explicit channel matrix processed using a predefined function. Feedback information generated based on the explicit feedback vector may be provided to a transmitter. The transmitter may reconfigure the explicit channel matrix or the processed explicit channel matrix based on the feedback information. The transmitter and the receiver may share the explicit channel matrix or the processed explicit channel matrix using an adaptively transformed codebook. | 2011-04-07 |
| 20110080972 | METHOD AND APPARATUS FOR MULTI-ANTENNA TRANSMISSION IN UPLINK - Method and apparatus for uplink transmission using multiple antennas are disclosed. A wireless transmit/receive unit (WTRU) performs space time transmit diversity (STTD) encoding on an input stream of a physical channel configured for STTD. Each physical channel may be mapped to either an in-phase (I) branch or a quadrature-phase (Q) branch. The WTRU may perform the STTD encoding either in a binary domain or in a complex domain. Additionally, the WTRU may perform pre-coding on at least one physical channel including the E-DPDCH with the pre-coding weights, and transmitting the pre-coded output streams via a plurality of antennas. The pre-coding may be performed either after or before spreading operation. | 2011-04-07 |
| 20110080973 | COMMON MODE CANCELLATION IN DIFFERENTIAL NETWORKS - Embodiments of the invention include a common mode cancellation circuit and method for correcting signal skew in a differential circuit. According to one embodiment, an op amp circuit is used to correct the mismatch between transmission line lengths in the differential circuit. The CMCC can be embodied as an ASIC and added on to an existing differential signaling systems to correct and compensate for board wiring skew or other causes of phase misalignment. The result is restoration of the cross-over intersection of the plus and minus signals of the differential pair closer to the common voltage level point, as if the signals had been in phase. | 2011-04-07 |
| 20110080974 | RADIO TRANSMITTER APPARATUS - Radio transmitter apparatus for transmitting data over a radio channel, the apparatus comprising an encoder for encoding the data to be transmitted to generate a first symbol, a processor for calculating from the first symbol a second symbol, a modulator for modulating the first symbol onto a primary carrier in a primary frequency band and for modulating the second symbol onto one or more secondary carriers in one or more secondary frequency bands and a transmitter for transmitting the primary carrier and the one or more secondary carriers over the radio channel, wherein the one or more secondary frequency bands are selected such that if aliasing occurs in a receiver receiving the signal an alias associated with the one or more modulated secondary carriers appears in the received primary frequency band. | 2011-04-07 |
| 20110080975 | MIMO TRANSMITTING APPARATUS, MIMO RECEIVING APPARATUS, MIMO TRANSMISSION SIGNAL FORMATION METHOD, AND MIMO TRANSMISSION SIGNAL SEPARATION METHOD - Provided are a MIMO transmitting apparatus, a MIMO receiving apparatus, a MIMO transmission signal formation method, and a MIMO transmission signal separation method that improve a transmission efficiency. In a MIMO communication apparatus ( | 2011-04-07 |
| 20110080976 | HIGH DATA RATE CLOSED LOOP MIMO SCHEME COMBINING TRANSMIT DIVERSITY AND DATA MULTIPLEXING - Closed loop multiple-antenna wireless communications system with antenna weights determined by maximizing a composite channel signal-to-interference-plus-noise ratio minimum. Multiplexed symbol streams over subsets of antennas enhance throughout. | 2011-04-07 |
| 20110080977 | Apparatus for multicast transmissions in wireless local area networks - Message formats and apparatus are described that serve to reserve access to a communication medium in a multi-cast system. A first message, a multicast request-to-send message, includes a duration field having information representing the reserved time for a communication medium, a multicast receiver address field, a multicast transmitter address field, a field that identifies the number of slots for a clear-to-send response, and a field that identifies the number slots for a not-clear-to-send response. A second message includes a duration field, and a multicast receive address field. The second message has a format that can be used as one of a clear-to-send message in response to a multicast request-to-send message, a cancel-clear-to-send message that cancels a data transmission after the clear-to-send message is sent, and a not-clear-to-send message in response to the multicast request-to-send message. | 2011-04-07 |
| 20110080978 | MULTI-STAGE FREQUENCY OFFSET ESTIMATION AND COMPENSATION METHOD AND ITS CIRCUIT - A multi-stage frequency offset (FO) estimation and compensation method and its circuit are described. The method includes performing at least a stage of primary-level FO estimation and compensation procedure, and a stage of advance-level FO estimation and compensation procedure. The first stage receives an input carrier signal of a larger FO and outputs a corrected carrier signal with an estimation error within the required estimation range of the next stage, to the next stage. Generated and fed forward stage-by-stage, the corrected carrier signal free of FO may be approached. Besides, since a feed-forward rather than a closed-loop approach is employed, the SNR requirement may be lower. Also, at primary-level, modulation may be first removed so the whole input carrier signal may be used to estimate FO; at advance-level, the periodic PN sequence in the input carrier signal may be utilized to estimate FO, thereby no dedicated training symbols are required. | 2011-04-07 |
| 20110080979 | SYSTEM AND METHOD FOR MIMO DECODING - A method, a system, a wireless device and a computer program product are provided. A process for decoding transmitted symbols in MIMO systems is provided. The received point coordinates and estimated candidate coordinates are represented by a reduced bit representation naturally dividing each dimension into uniformly sized bit segments. A bounded region surrounding the received point is defined in the total number of dimensions, the bounded region being a hypercube. For each candidate, an elimination process is carried out including : determining a position of the candidate to be inside or outside the bounded region, eliminating the candidate if it is outside, storing it if it is inside, adding a further bit thereby reducing a size of the bounding region; repeating the elimination process for the candidates stored as potential solutions until a single solution is obtained; determining the transmitted symbols from the single solution found. | 2011-04-07 |
| 20110080980 | MULTI-FEED DIVERSITY RECEIVE SYSTEM AND METHOD - Embodiments disclosed herein relate to diversity receive systems and methods. An antenna system may comprise a reflector and a plurality of feed antennas configured to receive a wireless signal from a common source with directional diversity. A receive system may comprise such antenna system in combination with a plurality of receivers and/or demodulators, and in combination with a combiner and/or controller. | 2011-04-07 |
| 20110080981 | Method and System for Minimum Mean Squared Error Soft Interference Cancellation (MMSE-SIC) Based Suboptimal Maximum Likelihood (ML) Detection for Multiple Input Multiple Output (MIMO) Wireless System - Various aspects of a method for minimum mean square error soft interference cancellation (MMSE-SIC) based sub-optimal maximum likelihood (ML) detection for a multiple input multiple output (MIMO) wireless system may comprise selecting at least one constellation point in a constellation map based on at least one of a plurality of received symbols. A number of the at least one constellation point may be less than or equal to a number of previously selected constellation points in a previous constellation map. At least one of the plurality of received symbols may be decoded based on the selected at least one constellation point. | 2011-04-07 |
| 20110080982 | SIGNAL QUALITY ESTIMATION FROM COUPLING MATRIX - The quality of a received signal in a non-linear receiver is estimated using a coupling matrix G or Q that describes the interaction of symbols in the received signal with other symbols and/or how the impairment (noise and interference) interacts in the received signal. The coupling matrix is also useful for joint detection. The signal quality estimate may include, e.g., the minimum eigenvalue, and other functions, such as the determinant and trace of the coupling matrix. When G or Q varies with each block, as in CDMA systems employing longcode scrambling, a representative matrix can be used, such as a matrix of RMS values or average magnitudes of real and imaginary components. The signal quality estimate can be expressed as a bit error rate (BER). | 2011-04-07 |
| 20110080983 | METHOD FOR SUPPRESSION OF OFDM ENERGY SPECTRAL DENSITY FOR MINIMIZATION OF OUT OF BAND EMISSION OR UTILIZATION OF FRACTURED SPECTRUM - The Energy spectral density of OFDM signals inherently rolls off slowly. Slow OFDM spectral rolloff has system level implications traditionally mitigated by some combination of the following: addition of bandlimiting filtering; use of significant guard bands of zeroed tones; and, guard time shaping. Each of these techniques negatively impact system performance and/or flexibility. This application presents a methodology for active cancellation of out of band spectral energy. The technique can be used by itself or in conjunction with above traditional methods to help control out of band emission. Examples of the use of the new technique are provided. Computational cost of the new technique is also discussed. | 2011-04-07 |
| 20110080984 | COMMUNICATION APPARATUS USING SYNCHRONIZED CLOCK SIGNAL - A communication apparatus using a synchronized clock signal includes: a communication signal generation unit generating one of a baseband signal and a signal obtained by applying digital modulation to the baseband signal, as a communication signal; an interface unit transmitting the generated communication signal and receiving a communication signal from an external source; a communication signal analyzing unit analyzing the received communication signal; a clock signal providing unit providing a clock signal to the communication signal generation unit, the interface unit, and the communication signal analyzing unit; and a controller controlling the communication signal generation unit, the interface unit, the communication signal analyzing unit, and the clock signal providing unit. | 2011-04-07 |
| 20110080985 | Synchronization Distribution in Microwave Backhaul Networks - In some embodiments, a system comprises a clock, a root node, a radio channel network, and first and second child nodes. The clock may be configured to generate a clock signal. The root node may be configured to generate a first frame including a first payload and a first overhead and generate a second frame including a second payload and a second overhead. The first and second overheads may comprise a synchronization value based on the clock signal. The radio channel network may be in communication with the root node for transmitting the first and second frames. Each first and second child nodes may be configured to perform clock recovery including frequency synchronization using the synchronization value and a respective phase-lock loop. | 2011-04-07 |
| 20110080986 | METHOD OF TRANSMUTING VERY LONG LIVED ISOTOPES - At least one very long lived isotope, such as I-129, and a moderator, such as MgH | 2011-04-07 |
| 20110080987 | MANUFACTURING METHOD OF NUCLEAR FUEL PELLET, FUEL ASSEMBLY FOR NUCLEAR REACTOR AND MANUFACTURING METHOD THEREOF AND URANIUM POWDER - Among fuel rods constituting a fuel assembly, Gd compound oxide is added to low Gd containing fuel rods that containing uranium dioxide of which enrichment exceeds 5 wt %. The Gd compound oxide is oxide of gadolinium and rare earth element A except for gadolinium and is expressed as a chemical formula A | 2011-04-07 |
| 20110080988 | FUEL BUNDLE DESIGNS USING MIXED SPACER TYPES - Example embodiment fuel bundles use multiple types of spacers within the same fuel bundle. The type for each spacer location may be determined based on the axial position of the spacer, the characteristics of the spacer type, and the location and coolant characteristics for the particular example fuel bundle including the spacers. Historic performance data for the particular bundle location, predictive modeling, etc. may be used to determine what spacer types at which locations result in the best operating conditions and margins for example fuel bundles. | 2011-04-07 |
| 20110080989 | START-UP CIRCUIT AND START-UP METHOD - A start-up circuit receives a start-up signal instructing start-up of an equipment mounted with the circuit, and executes a predetermined sequence when start-up is instructed by the start-up signal. An oscillator generates a clock signal. A sequence circuit receives the start-up signal and a clock signal output from the oscillator, measures time by counting the clock signal when the start-up signal transits to a predetermined level, and executes a predetermined event at a predetermined timing. The oscillator operates for a period where the start-up signal is at the predetermined level if the start-up signal is at the predetermined level during the period the power key of the equipment mounted with the circuit is being pushed. | 2011-04-07 |
| 20110080990 | SYSTEMS AND METHODS FOR OBTAINING RECONSTRUCTED IMAGES DURING A TREATMENT SESSION - A medical system includes a treatment radiation source configured to deliver treatment radiation during a treatment session, an imaging system configured to obtain image data during the treatment session, and a processor configured to determine a beam break, and automatically operate the imaging system to obtain the image data during the beam break. A medical system includes a treatment radiation source, an imaging system configured to automatically obtain image data in a beam break that occurs during a treatment session, and a processor configured to automatically operate the treatment radiation source to deliver treatment radiation during the treatment session after the beam break ends. | 2011-04-07 |
| 20110080991 | X-RAY DEVICE FOR CONTROLLING A DC-AC CONVERTER - The invention provides an X-ray device for controlling a DC-AC converter, wherein the DC-AC converter is adapted for supplying a resonant circuit and a transformer ( | 2011-04-07 |
