Abstract: Systems, methods, and circuitries are disclosed to determine parameters for predistortion circuitry in a transceiver including a transmit chain and a receive chain. In one example, a method includes providing a training signal to a power amplifier on the transmit chain. A separation circuitry is controlled to provide an amplified training signal and a first feedback signal is received from the receive chain. The separation circuitry is controlled to output a modified amplified training signal and a second feedback signal is received from the receive chain. Parameters for the predistortion circuitry are determined based the first feedback signal and the second feedback signal.

Abstract: The various embodiments include methods and apparatuses for canceling nonlinear interference during concurrent communication of multi-technology wireless communication devices. Nonlinear interference may be estimated using a multi-layer perceptron neural network with Hammerstein structure by dividing an aggressor signal into real and imaginary components, augmenting the components by weight factors, executing a linear combination of the augmented components, and executing a nonlinear sigmoid function for the combined components at a hidden layer of multi-layer perceptron neural network to produce a hidden layer output signal. At an output layer, hidden layer output signals may be augmented by weight factors, and the augmented hidden layer output signals may be linearly combined to produce real and imaginary components of an estimated jammer signal.

Abstract: A method of producing a reliability metric for a parameter estimate derived from a signal using correlation analysis is described. The method begins by obtaining an indication of whether a non line of sight signal condition is present or likely and/or obtaining an indication of whether a multi-path signal condition is present or likely. Responsive to one or both of these indications, the method derives a reliability metric for the parameter estimate. In one embodiment, the parameter estimate is an estimate of time of arrival (TOA) of the signal, and the reliability metric is root mean square error (RMSE) of the time of arrival estimate. This embodiment obtains an indication of whether a non line of sight signal condition is present or likely based on a measure of the strength of the correlation function at the peak thereof.

Abstract: A system and method for accurately determining time of arrival using a mathematical model that mimics a correlation function. A correlation value is sampled at a predetermined periodic interval and a maximum correlation value, coinciding with a particular point in time, is determined. The mathematical model uses the maximum measured correlation value and correlation values at adjacent sample points to determine coefficients for the selected mathematical model. The coefficients may be calculated and used to determine the actual peak, which may fall in-between the sample points. The actual peak value is used to accurately determine the time of arrival of a signal. Time of arrival signals from a plurality of remote transmitters are used along with conventional triangulation techniques to accurately determine the location of the wireless unit.

Abstract: A system and method for assisting an integrated GPS/wireless terminal unit in acquiring one or more GPS satellite signals from the GPS satellite constellation. The invention includes a method for narrowing the PN-code phase search. That is, by accounting for the variables in geographic location and time delay relative to GPS time, the systems and methods of the present invention generate a narrow code-phase search range that enables the terminal unit to more quickly acquire and track the necessary GPS satellites, and thereby more quickly provide accurate position information to a requesting entity.

Abstract: A computer application is used for the serving and creation of user-annotated web pages, which may include associated advertisements, to client devices. The user is able to submit comments to one or more web servers wherein the web server or servers appends the submitted comment or comments and updates them for use and display on one or more web pages at one or more client devices. The comments are also distributed for viewing or listening, potential annotation, and update by other users viewing the same or related annotations across multiple websites. Annotated advertisements are an embodiment of the invention.

Abstract: A parameter estimator for estimating one or more parameter(s) from a correlation function derived from a signal using a dynamically variable integration time is described. The parameter estimator may be employed in a subscriber station to estimate the time of arrival of one or more base station or sector pilot signals in a wireless communication system. This information may be utilized in an overall advanced forward link trilateration (AFLT) process for estimating the location of the subscriber station.

Abstract: For position determination with peer-to-peer communication, a target terminal broadcasts a request for assistance in determining its position. At least one ranging terminal receives the request. Each ranging terminal sends a response with a time of arrival (TOA) measurement for the request and the position of the ranging terminal. For two-way peer-to-peer, the target terminal receives at least one response from the at least one ranging terminal, obtains a TOA measurement for each response, estimates the distance to each ranging terminal based on the TOA measurement for the request and/or the TOA measurement for the response, and computes a position estimate for itself based on the estimated distance and the position for each ranging terminal. For one-way peer-to-peer, a network entity receives at least one response from the at least one ranging terminal, computes a position estimate for the target terminal, and sends the position estimate to the target terminal.

Abstract: A method for estimating a size of reverse link resources provided by a base-station transceiver system (BTS), including performing respective first, second, and third measurements of first, second, and third signal strengths received at the BTS. The method also includes comparing the first measurement with the second measurement so as to determine an initial minimum signal strength, and adding at a predetermined time an aging value to the initial minimum signal strength so as to from an updated minimum signal strength. The method further includes forming a comparison between the updated minimum signal strength and the third measurement, determining from the comparison a minimum of the updated minimum signal strength and the third measurement to be a minimum received signal strength, and determining the size of the reverse link resources provided by the BTS in response to the minimum received signal strength.

Abstract: A method for performing a soft handoff, including establishing a first control channel via a network between a first BSC and a first BTS. The method also includes establishing a second control channel via the network between a second BSC and a second BTS. A call between a mobile station (MS) and the first BTS is established, and while the call continues an indication is sent to the first BSC that the MS has received a signal from the second BTS. In response to the indication, a trigger is conveyed from the first BSC to the second BTS, and, in response to receiving the trigger at the second BTS, further traffic associated with the call is directed between the MS, the second BTS, and the first BSC, without conveying the further traffic through the second BSC.

Abstract: A method and apparatus of determining a lower bound of an excess delay in a time of arrival measurement of a received signal. Determining the lower bound of an excess delay in a time of arrival measurements includes receiving signals from at least two base stations and determining the time difference of arrival between the received signals from their respective base stations. Then estimating a lower bound of excess delay introduced into the signals received from the base stations based on the time of arrival of the signals from the respective base stations and a known distance between the base stations. The lower bound of excess delay may be used to adjust the estimate of a mobile unit's location based on the time of arrival measurements of the received signals.

Abstract: A method for estimating cash flow at risk for a non-financial entity over a particular future time period, including receiving quarterly data associated with at least two of a plurality of non-financial entities, generating a plurality of data elements, each of the plurality of data elements representing a portion of the quarterly data of an associated one of the at least two of the plurality of non-financial entities, selecting one of the at least two of the plurality of non-financial entities, and estimating the cash flow at risk for the selected one of the at least two of the plurality of non-financial entities based on at least two of the plurality of data elements.

Abstract: Live casino table card game and video card game versions of a casino card game employ a deck of cards bearing symbols commonly found on slot machines including orange, cherry, triple bar, lemon, and plum. Players are afforded opportunities to place ante, bet, and progressive wagers and attempt to win such wagers by obtaining certain predetermined winning arrangements of slot machine symbols on 3, 4, or 5 of their cards in order to obtain payoff amounts on wagers determined pursuant to predetermined payout tables. After placing an initial mandatory ante wager, a dealer deals five cards to each player and also deals a dealer hand consisting of two communal cards. After inspecting his or her cards, each player is afforded an opportunity to either fold and surrender their ante wager and any progressive wager placed, or to continue play by placing a bet wager in an amount double their ante wager.

Abstract: A position determination system and apparatus for utilizing a network of cellular base stations to determine position of a mobile station includes taking a plurality of statistically independent data measurements of the pilot signals from the base stations. Each of the data measurements includes an earliest time of arrival, providing multiple independent measurements for each of the pilot signals. For each cellular base station, a representative measurement is calculated responsive to the independent measurements, which is used to determine position of the mobile station using an AFLT algorithm and/or in conjunction with a GPS algorithm. In some embodiments, the data measurements for each pilot signal further include an RMSE estimate and time of measurement for each time of arrival, and an energy measurement for all resolvable paths. If the mobile station comprises a cell phone, a cell search list and a GPS search list may be provided by a cell base station.

Abstract: A system and method for accurately determining time of arrival using a mathematical model that mimics a correlation function. A correlation value is sampled at a predetermined periodic interval and a maximum correlation value, coinciding with a particular point in time, is determined. The mathematical model uses the maximum measured correlation value and correlation values at adjacent sample points to determine coefficients for the selected mathematical model. The coefficients may be calculated and used to determine the actual peak, which may fall in-between the sample points. The actual peak value is used to accurately determine the time of arrival of a signal. Time of arrival signals from a plurality of remote transmitters are used along with conventional triangulation techniques to accurately determine the location of the wireless unit.

Abstract: A method of producing a reliability metric for a parameter estimate derived from a signal using correlation analysis is described. The method begins by obtaining an indication of whether a non line of sight signal condition is present or likely and/or obtaining an indication of whether a multi-path signal condition is present or likely. Responsive to one or both of these indications, the method derives a reliability metric for the parameter estimate. In one embodiment, the parameter estimate is an estimate of time of arrival (TOA) of the signal, and the reliability metric is root mean square error (RMSE) of the time of arrival estimate. This embodiment obtains an indication of whether a non line of sight signal condition is present or likely based on a measure of the strength of the correlation function at the peak thereof.

Abstract: The present invention provides management of entity profile data to effectively process, analyze, and review entity profile data. More specifically, the present invention provides a unified data analysis and processing scheme to break down and review entity profile data. The present invention also provides an interactive visualization tool for the strategists and web site-maintainers to effectively and efficiently review entity profile data. This tool provides strategists and site-maintainers an easy method of managing web-sites and optimizing web-site design for customers of interest.

Abstract: The present invention provides management of transaction data effectively to process, store, analyze, review, and visualize transaction data. The present invention is compatible with transaction data from internet accesses to Web-sites. The present invention provides a unified data collection and processing scheme with an interactive visualization tool for the processed data. The present invention receives transaction data and then processes this transaction data to create an efficient data structure representing the data. As a result, the present invention also provides an interactive visualization tool for the strategists, transaction data maintenance personnel, and Web-site maintenance personnel to effectively and efficiently review transaction data to provide a convenient tool for managing transaction data or a Web-site and visualizing its effectiveness. Furthermore, the present invention also provides for the aggregation of such transaction data.

Abstract: A method for estimating cash flow at risk for a non-financial entity over a particular future time period, including receiving quarterly data associated with at least two of a plurality of non-financial entities, generating a plurality of data elements, each of the plurality of data elements representing a portion of the quarterly data of an associated one of the at least two of the plurality of non-financial entities, selecting one of the at least two of the plurality of non-financial entities, and estimating the cash flow at risk for the selected one of the at least two of the plurality of non-financial entities based on at least two of the plurality of data elements.

Abstract: A system and method for assisting an integrated GPS/wireless terminal unit in acquiring one or more GPS satellite signals from the GPS satellite constellation. The invention includes a method for narrowing the PN-code phase search. That is, by accounting for the variables in geographic location and time delay relative to GPS time, the systems and methods of the present invention generate a narrow code-phase search range that enables the terminal unit to more quickly acquire and track the necessary GPS satellites, and thereby more quickly provide accurate position information to a requesting entity.