Abstract: A method for communication includes, in a transmitter having a first number of transmit antenna ports, setting an upper limit on a second number of spatial layers to be used by the transmitter to be less than the first number. An actual number of the spatial layers, which does not exceed the upper limit, is allocated for transmission to a given receiver. One or more streams of modulated symbols are mapped onto the allocated actual number of the spatial layers. The actual number of the spatial layers are transmitted from the transmitter to the given receiver.

Abstract: A method for performing a precoding based on a generalized phase shift or a precoding based on an extended phase shift in a Multi-Input Multi-Output (MIMO) system employing several sub-carriers, and a transceiver for supporting the same are disclosed. A phase-shift-based precoding matrix is generalized by multiplying a diagonal matrix for a phase shift by a unitary matrix for maintaining orthogonality between sub-carriers. In this case, a diagonal matrix part may be extended by multiplying a precoding matrix for removing an interference between sub-carriers by a diagonal matrix for a phase shift. By generalization and extension of the phase-shift-based precoding, a transceiver is more simplified, and a communication efficiency increases.

Abstract: Embodiments of the invention provide a DPD system where the transmit reference signal is transformed, including sub-sampling, frequency translation, and the like, to match the feedback signal, which goes thru a similar transformation process, to obtain an error signal. The same transformation is applied to a system model, which may be Jacobian, Hessian, Gradient, or the like, in an adaptation algorithm to minimize error.

Abstract: A communication system comprising signal processing circuitry and up-conversion circuitry. The signal processing circuitry is configured to: i) generate a first signal of a first modulation type and a second signal of a second modulation type; ii) combine the first and second signals to form a combined input signal; iii) generate peak reduction distortion based on the combined input signal; iv) select a portion of the peak reduction distortion that corresponds to a first frequency band; and v) apply the selected portion of the peak reduction distortion in the first frequency band of the combined input signal to provide a combined output signal. The up-conversion circuitry up-converts the combined output signal to an RF signal for transmission.

Abstract: A power management system and method for a wireless communication device generates an average desired transmit power signal based on at least one of a received signal strength indicator signal and a power control instruction signal from a base station. A power supply level adjustment signal is generated based on the data parameters of an outgoing data stream and at least one environmental information signal. A combination of the power supply level adjustment signal and the average desired transmit power or a gain control signal and an altered version of the power supply level adjustment signal is used to generate a variable power supply signal that is provided to an output amplifier block for sufficiently generating outgoing wireless device radio signals while reducing power loss in the output amplifier block.

Abstract: Methods and apparatus for increasing diversity gain at a receiver by applying beamforming to transmit diversity space-time coded signals. A transmit signal is space-time coded over a plurality of space-time antenna groups, with each space-time antenna group associated with a specific space-time code. The signal at each space-time antenna group is beamformed over the plurality of antenna in the space-time antenna group. Each of the plurality of antenna in a space-time antenna group is weighted with a distinct weight, relative to the other antenna in the space-time group. The beamforming weights can vary based on a channel quality feedback indication from a receiver. The amplitude, phase, or a combination of amplitude and phase of each weight or of a vector of multiple weights can vary as a function of the channel quality indication in order to improve the quality of the received signal.

Abstract: A receiver system for early detection of a segment type of an input signal based on BPSK and DBPSK modulated carriers is provided. The receiver system includes a tuner that converts the input signal into an intermediate frequency (IF) signal, a signal conditioning module that converts the IF signal into a baseband signal, a Frequency Domain Synchronization (FDS) block that detects the segment type of the input signal based on a carrier powers, a Transmission and Multiplexing Configuration Control (TMCC) decode block that performs a decoding operation on the received signal, a channel estimation block that estimates a channel and obtains a channel information. The TMCC decode block uses the channel information obtained from channel estimation block to correct a fast-frequency selective fading on the received signal before the decoding operation.

Abstract: An apparatus according to an embodiment of the present invention for providing a reduced representation in a frequency-domain, based on a time-based RF signal, has a time-frequency converter adapted to transform the time-domain RF signal to obtain a frequency-domain representation based on the time-domain signal and an entropy encoder adapted to obtain the reduced representation based on the frequency-domain representation by entropy encoding.

Abstract: Systems and methods are provided for decoding signal vectors in multiple-input multiple-output (MIMO) systems, where the receiver has received one or more signal vectors from the same transmitted vector. The receiver combines the received vectors by vector concatenation The concatenated vector may then be decoded using, for example, maximum-likelihood decoding. In some embodiments, the combined signal vector is equalized before decoding.

Abstract: An approach for Soft-output K-Best MIMO detection comprises computing an estimated symbol vector and Log-Likelihood Ratio (LLR) values for transmitted bits. The approach includes a relevant discarded paths selection process, a last-stage on-demand expansion process, and a relaxed LLR computation process. The relevant discarded paths selection process includes analyzing the K-Best paths and discarded paths at each intermediate tree level and selecting only those discarded paths for further processing that will help in LLR computation for at least one of the transmitted bits. The last-stage on-demand expansion process includes expanding K paths at the tree level 2NT?1 (NT=number of transmit antennas) on-demand to only 2K?1 lowest Partial Euclidean Distance (PED) paths at last tree level 2NT. The relaxed LLR computation scheme includes approximating LLR computations by assuming that discarded path PED is greater than or equal K-Best path PED.

Abstract: Adaptive path selection for interference cancellation is provided for wireless communication devices. Signal strength metrics are obtained for each of multiple signal paths. One or more of the signal paths are selected as cancellation candidates in response to determining that the signal paths are associated with a strong interfering path based at least in part on the signal strength metrics for the signal paths and threshold criteria. Cancellation is enabled for an estimated signal generated using the signal paths in response to the signal paths being selected as cancellation candidates.

Abstract: Aspects of a method and system for channel estimation in a MIMO communication system with multiple RF chains for WCDMA/HSDPA may comprise receiving a plurality of communication signals from a plurality of transmit antennas. A plurality of vectors of baseband combined channel estimates may be generated based on phase rotation of the received plurality of communication signals. A matrix of processed baseband combined channel estimates may be generated based on the generated plurality of vectors of baseband combined channel estimates. A plurality of amplitude and phase correction signals may be generated based on the generated plurality of vectors of baseband combined channel estimates. An amplitude and a phase of at least a portion of the received plurality of communication signals may be adjusted based on the generated plurality of amplitude and phase correction signals, respectively.

Abstract: A system and method for calibrating a local radio reference clock for a radio operating in a radio network having a network reference clock. The method comprises determining at the radio an offset between the local clock and the network clock, placing the local clock in a calibration mode, and calibrating the local clock using a radio link to reduce the offset.

Abstract: Circuit and methods accelerate jitter tracking and reduce or eliminate the processing delay of loop filtering in timing recovery. A timing recovery circuit incorporates a phase tracking accelerator and a frequency tracking accelerator to compute the phase and frequency variation of incoming signal during the delay period of a loop filter. In one embodiment, phase and frequency tracking accelerators are realized in direct forms. In another embodiment, pre-computed look-up tables are employed in phase and frequency tracking accelerators to ease timing closure and simplify accelerator circuit. The phase tracking accelerator and the frequency tracking accelerator together compensate the estimated phase at the output of a loop filter and eliminate the processing delay of loop filtering. The loop bandwidth and jitter tolerance of timing recovery are increased.

Abstract: A particle beam target for producing radionuclides includes a target body, a target cavity, parallel grooves, peripheral bores, and radial outflow bores. The parallel grooves are formed in a back side of the target body and include respective first and second groove ends. The peripheral bores extend through the target body from the plurality of grooves generally toward the front side that receives a particle beam. Each groove communicates with a peripheral bore at the first groove end and another peripheral bore at the second groove end. The radial outflow bores extend radially from the plurality of peripheral bores. The target body defines a plurality of liquid coolant flow paths. Each liquid coolant flow path runs from a respective groove to at least one of the first groove end and the second groove end of the respective groove, through at least one peripheral bore, and through at least one radial outflow bore.

Abstract: A locking mechanism for securing hatches internal to a steam generator that is made up of only mechanical locking elements with fully captured moving parts. The mechanism employs a locking pin with redundant mechanisms to secure the pin in the closed position. The moving parts of the device can be attached directly to a removable hatch so that installation and repairs that may be required can be performed outside of the pressure vessel of the steam generator.

Abstract: A digital rod control system that employs separate power modules to energize the respective coils of a magnetic jack control rod drive rod drive system so that two, independently powered grippers can simultaneously support the control rod drive rod when it is not in motion to avoid dropped rods. The basic building block of the system is two or more selecting cabinets which receive multiplex power from at least one moving cabinet and are under the control of a single logic cabinet. Each of the cabinets include monitoring features to confirm the reliability of the system.

Abstract: The present invention relates to an irradiation device for material test using a gamma ray radiated from a spent nuclear fuel assembly and provides the irradiation device for material test using a gamma ray radiated from a spent nuclear fuel assembly wherein an irradiation device for material test to achieve a radiation effect evaluation is manufactured to be movable upward, downward and horizontally in order to study the hardening phenomenon of the frail materials to the radiation among the atomic power facilities using a gamma ray radiated from a spent nuclear fuel assembly, thereby it is possible to adjust a position of the spent nuclear fuel used for material test using a gamma ray radiated from a spent nuclear fuel and a test material, identify a distance between the spent nuclear fuel and the test material easily with a scale and evaluate the radiation effects on the materials used at facilities handling a spent nuclear fuel under the same situation as they are really exposed.

Abstract: A nuclear plant has a containment shell and a pressure relief pipe connected thereto in which a blowing device and a Venturi washer placed in a container with a washing liquid are connected in series. Even the finest particles or aerosols carried by air are held in the Venturi washer with a very high degree of reliability and the release thereof in environment is excluded in a particularly reliable manner in the case of decompression even associated with seal failures. For this purpose, the size of the blowing device and the Venturi washer are selected in such a way that during the operation of the blowing device a flow rate of liquid in the Venturi washer flowing to the decompressing pipe is higher than 130 m/sec, preferably higher than 180 m/sec.

Abstract: Disclosed herein is a fully passive decay heat removal system utilizing a partially immersed heat exchanger, the system comprising: a hot pool; an intermediate heat exchanger which heat-exchanges with the sodium of the hot pool; a cold pool; a support barrel extending vertically through the boundary between the hot pool and the cold pool; a sodium-sodium decay heat exchanger received in the support barrel; a sodium-air heat exchanger provided at a position higher than the sodium-sodium decay heat exchanger; an intermediate sodium loop connecting the sodium-sodium decay heat exchanger with the sodium-air heat exchanger; and a primary pump, wherein a portion of the effective heat transfer tube of the sodium-sodium decay heat exchanger is immersed in the cold pool, particularly in a normal operating state, and the surface of the lower end of a shroud for the sodium-sodium decay heat exchanger, the lower end being immersed in the sodium of the cold pool, has perforated holes.

Abstract: A nuclear fuel assembly having a plurality of multi-leaf hold down spring sets extending from a top nozzle. Each spring set consists of a multiple number of springs leafs in order to provide a large working range of spring deflection. Each spring leaf has a straight, flat base section followed by a straight, flat tapered beam with a secondary spring set having a curvature at its peripheral end.

Abstract: A shift register has a first latch and a second latch and a first output circuit and a second output circuit. The first latch and the second latch are series-connected. The latches are implemented to take over a signal state applied to their data inputs in a transparent state and to maintain the taken-over signal state in a non-transparent operating state. Clock inputs of the latches are switched such that the second latch is in the transparent operating state when the first latch is in the non-transparent operating state and vice versa. The first output circuit is implemented to provide a predetermined level independent of the signal state existing in the first latch at a first shift register output of the shift register in the transparent operating state and to provide a level depending on the signal state stored in the first latch in the non-transparent operating state of the first latch.

Abstract: A method for obtaining an intraoral x-ray image determines an initial spatial position and angular orientation of an x-ray source relative to a detector. A first x-ray image is obtained with the x-ray source at the initial spatial position and angular orientation and stored, associating the initial spatial position and angular orientation to the first x-ray image. A sequence repeats that calculates a next spatial position and angular orientation for the x-ray source, provides positional adjustment information between the x-ray source and detector for obtaining a next x-ray image, measures and records the actual spatial position and angular orientation of the x-ray source relative to the detector and obtains and stores the next x-ray image at the measured spatial position and angular orientation, and forms a composite image using image data from the first and from the one or more next x-ray images.

Abstract: A stereo x-ray inspection apparatus and a method for forming a three-dimensional image through volume reconstruction of an image acquired from the same are disclosed. The apparatus includes one x-ray generator and two detectors to acquire two images. The x-ray generator and detectors are arranged in the form of a right-angled triangle, to easily achieve mathematical development and analysis. One of the detectors, which does not just oppose the x-ray generator, is movable and rotatable, to acquire images under the condition that only one detector is moved in accordance with the size of an object, and thus to simplify control operation for the apparatus, so that a more accurate image from an object moving at high speed is acquired.

Abstract: A system for radiotherapy that includes a couch upon which a patient being treated by the system is positioned, the couch having continuous arc rotation for delivery accelerated irradiation to the patient.

Abstract: The invention relates to an arrangement of a measuring window in a continuously operated X-ray analyzer (1), said analyzer being is used particularly for analyzing elemental contents in solid, liquid or slurry-like materials; which measuring window (2) separates the sampling space (3) containing the sample material to be measured and the measurement space (4) containing the measuring probe (11), and is sealed by a lid structure (6) arranged in the sampling space, said lid structure defining the measurement aperture (7) of the sampling space, in which case the lid structure defining the measurement aperture of the sampling space is provided with a sealing surface (8) of the measuring window, so that said surface is at least partly planar and at least partly curved.

Abstract: A method includes identifying one or more second digital subscriber lines from one or more first digital subscriber lines based on historical performance data. The one or more second digital subscriber lines are identified based on degraded performance that is determined using first performance information for the one or more first digital subscriber lines. The method includes applying a line profile to the one or more second digital subscriber lines. The method includes storing second performance information associated with the one or more second digital subscriber lines. The method includes sending information to a remote computing device.

Abstract: Systems and methods are provided to assist an emergency dispatcher in responding to emergency calls reporting incidents involving a hate crime or other anti-social behavior toward a victim. The systems and methods can include an emergency police dispatch protocol configured to facilitate uniform and consistent gathering of information about an incident being reported and configured to determine a determinant value corresponding to an appropriate emergency dispatch response. A diagnostic tool is provided to aid the dispatcher in gathering information about the victim that pertains to one or more bias categories. The victim information can be used to identify one or more potential biases that could have motivated the perpetrator of the hate crime or other anti-social behavior. The diagnostic tool facilitates uniform and consistent gathering of victim information pertaining to various bias types.

Abstract: A method can include detecting an incoming voice mail message and accessing information associated with the incoming voice mail message. The information associated with the incoming voice message may then be compared with some other information, which may comprise one or more of these attributes associated with each message: a caller ID; a time stamp; a user extension; a message length; a caller identification; message content; and whether a user has tagged each message as spam.

Abstract: A computerized method is implemented by a communication device for evaluating levels of importance of missed incoming calls. One or more reference parameters in relation to incoming calls received by the communication device are defined, a function for evaluating levels of importance of the missed incoming calls is formed using the one or more reference parameters. When an incoming call is received by the communication device, whether the received incoming call is missed is determined If the received incoming call is missed, the one or more reference parameters in relation to the received incoming call are obtained. A level of importance of the missed incoming call is evaluated by applying the obtained one or more reference parameters to the function.

Abstract: A context aware help system generates context data for web sessions. The context data may be used either by a human operator or by an automated response system to help resolve user web session problems. For example, a user may initiate a telephone call to the context aware help during a web session. The context data may be displayed to a telephone operator in response to the telephone call. The telephone operator may use the context data to determine what web pages and user inputs were previously entered during the web session. This allows the telephone operator to quickly analyze web session problems and provide more effective and efficient web session support. The help system may alternatively, or in addition, provide other types of automated audio or data support.

Abstract: Methods and devices to retrieve voice messages are disclosed. An example device includes a network interface to access a voicemail server via a network, a message parser to remove a non-message portion of a voicemail access session from a voicemail access session, and a storage device to store the message portion of the voicemail access session.

Abstract: A telecommunication and multimedia management apparatus and method that supports voice and other media communications and that enables users to: (i) participate in multiple conversation modes, including live phone calls, conference calls, instant voice messaging or tactical communications; (ii) review the messages of conversations in either a live mode or a time-shifted mode and to seamlessly transition back and forth between the two modes; (iii) participate in multiple conversations either concurrently or simultaneously; (iv) archive the messages of conversations for later review or processing; and (v) persistently store media either created or received on the communication devices of users. The latter feature enables users to generate or review media when either disconnected from the network or network conditions are poor and to optimize the delivery of media over the network based on network conditions and the intention of the users participating in conversations.

Abstract: An image forming apparatus stores the received FAX data as a document in a storage unit. The information processing apparatus receives a FAX reception notification which is a notification indicating the reception of FAX data from the image forming apparatus and includes at least a telephone number of a transmission source of the FAX data. Then, the image forming apparatus determines whether or not a new arrival document is present in the storage unit, and sets the telephone number included the FAX reception notification as a property of the new arrival document when the image forming apparatus determines that the new arrival document is present in the storage unit.

Abstract: Dissemination of information from a controlled environment facility employs facility information management functionality managing resident information and facility information, and call manager functionality selectively providing at least a portion of the resident information and/or the facility information to an outside party and/or professionals associated with the facility in an automated manner. The invention may employ outgoing IVR functionality to provide select portions of the resident information to appropriate professionals at the time of intake of a new resident. The invention may conduct a reverse auction among professionals offering a particular good or service, manage information related to providers of services or goods for residents of a facility, provide an outside party this information including results of a reverse auction, and notify a selected provider of selection of that provider by the outside party to provide goods or services for a resident.

Abstract: A solution for initiating a telephonic connection is provided. A calling user can provide data identifying a receiving device and corresponding to a call message. In response to requesting initiation of the telephonic connection, the length of the call message can be determined, and a transmission solution for the call message can be selected based on the length. When the length is sufficiently short, the call message can be included in caller ID information for the telephonic connection. When the length is longer, the call message can be transmitted as a data message and initiation of the telephonic connection can subsequently take place after a delay.

Abstract: Providing non-voice capabilities relating to a phone call at a computing device includes receiving a request to begin a telephone call from a first telephone to a second telephone, wherein the requesting is performed using messaging between computing devices connected via a computer network, and wherein the messaging is part of a signaling phase dialog. The signaling phase dialog may be used in providing information associated with the identity of parties of the telephone call. Commencing a call phase dialog between the computing devices may be performed after the telephone call is established over the public switched telephone network. The call phase dialog may allow messages relating to the telephone call to be passed between the computing devices, at least while the telephone call is in progress. The dialogs and messaging may be performed using session initiation protocol (SIP) or another computer communication protocol.

Abstract: Service levels for call-processing are enhanced based on the subscriber status of at least one of the calling party and the called party. In one example, a calling party (caller) places a call to a called party (recipient). At least one of the parties subscribes to a call-processing service and the call normally would be processed according to a predetermined service level. However, the service level is enhanced in response to a subscriber status for at least one of the parties, and the call is processed according to the enhanced service level.

Abstract: A method of and system for adjusting audio volume in a conference call environment are disclosed. The method comprises associating respective gain factors with each source of a plurality of incoming audio streams. The method further comprises automatically adjusting the volume of each incoming audio stream in accordance with the associated gain factor. In accordance with example embodiments, the method may be performed either at a telephony endpoint such as a VoIP telephone or at a conference bridge.

Abstract: A method, a computer readable medium and a system for international conferencing via globally distributed cascading media servers that comprises, receiving a local participant audio packet at a local conferencing media server in a conference call, summing the local participant audio packet by the local conferencing media server, receiving a distal participant audio packet at a distal conferencing media server, summing the distal participant audio packet by the distal conferencing media server, and interfacing the local conferencing media server with the distal conferencing media server.

Abstract: Conference Systems usually comprise a plurality of delegate units, whereby each delegate unit provides a speaking place for a person attending the Conference. A delegate unit (1) for a Conference System is disclosed with a microphone (4) and a signal means (6, 7, 9) whereby the signal means (9) comprise a possible-to-speak indicator (9) operable to indicate a possible-to-speak Status of the microphone (4), whereby the microphone is ready to be activated by a user of the delegate unit (1), thus indicating the user floor status.

Abstract: A system, method, and computer readable medium for redirecting a call via centralized bridges comprises a first conferencing platform based in a first country, a second conferencing platform based in a second country, and a third conferencing platform based in a third country, wherein the first conferencing platform dials the second conferencing platform and the third conferencing platform to provide a conference call between the second conferencing platform and the third conferencing platform.

Abstract: All calls terminating to a customer's directory number are intercepted. If caller identification information can be presented, the call is forwarded to a service node for disposition. The service node reconfigures signaling information of the call so that the call is not intercepted, then forwards the call to the subscriber's telephone. When the call is answered, the service node states the name or telephone number of the calling party which has been retrieved from the signaling information. The caller can decide whether to take the call, deny the call, send the call to voice mail or send a sales refusal message or other disposition option.

Abstract: In a call forwarding system, a call from a calling party for a called party is received at a switching device and in response to the received call the switching device issues a request for call processing instructions to a control device. The call processing instructions request is received at the control device and in response to the received request the control device checks with the destination station to determine the availability thereof. The control device returns call processing instructions to the switching device including a telephone number of the destination station if the destination station is available. Similarly, the control device returns alternative call processing instructions to the switching device if the destination station is not available.

Abstract: A method for handling an on-hold communication includes receiving an incoming communication from an initiating party directed to a communication destination address assigned to a receiving party. When the incoming communication is placed on-hold, the initiating party is provided a menu of selectable options including an option to obtain information particular to a physical geographic location identified during the incoming communication. The on-hold initiating party selects the option to obtain the information particular to the physical geographic location, and the information particular to the physical geographical location is provided while the incoming communication is on-hold.

Abstract: A telephony system is presented that enables a phone to access a directory and use the directory in conjunction with other phone functions. The system includes a server with a telephony management software (TMS) unit, a telephony application programming interface (TAPI) unit, and an application unit. The application unit includes a control module, a function module, a filter module, a presentation module, a phone interface module, and a storage interface module. A server sends a signal to a phone regarding the contents of a directory. A server also enables a user to navigate through the directory, filter the directory, and perform call functions on phone numbers associated with directory entries.

Abstract: Examples of inbound call identification and management are described including a call management system that includes one or more repositories that can include data representing call action policies and data representing attributes associated with the caller devices and the callee devices. Further, the call management system can include one or more computing devices that include a call identifier (“IDer”) configured to characterize the attributes of the caller devices to form characterized attributes, a call management system controller configured to match the characterized attributes against routing criteria specified in the data representing the call action policies, and a call management system router configured to route calls from the caller devices to the callee devices responsive to a match between the characterized attributes and the routing criteria.

Abstract: Systems and methods for providing a personalized communication processing service are disclosed. In one embodiment, a personalized communication processing system (PCPS) can include a processor, an input/output interface, and a memory. The memory can be configured to store instructions, executable by the processor to intercept an incoming communication from a calling party, identify calling party information, determine a contact category to which the calling party is logically associated based upon a recognized relationship between the called party and the calling party as defined in the contact category, determine a user state of the called party that identifies conditions under which a communication processing treatment is to be provided for the contact category according to a personalized communication processing rule, apply the rule associated with the determined user state and the determined contact category, and process the incoming communication according to the applied personalized processing rule.

Abstract: A method of operating a telecommunications network includes, in one embodiment, detecting a call at an originating switch of the telecommunications network and, when a destination for the call matches a predetermined destination, routing the call on designated data trunks. When traffic on the designated data trunks exceeds a capacity threshold, the method further includes routing the call to a terminating switch using interoffice trunks and completing the call to the destination from the terminating switch.

Abstract: Methods and systems are provided for routing callers to agents in a call-center routing environment. An exemplary method includes identifying caller data for a caller in a queue of callers, and jumping or moving the caller to a different position within the queue based on the caller data. The caller data may include one or both of demographic data and psychographic data. The caller can be jumped forward or backward in the queue relative to at least one other caller. Jumping the caller may further be based on comparing the caller data with agent data via a pattern matching algorithm and/or computer model for predicting a caller-agent pair outcome. Additionally, if a caller is held beyond a hold threshold (e.g., a time, “cost” function, or the like) the caller may be routed to the next available agent.