Patent application number | Description | Published |
20130013482 | Methods for Post-Trade Allocation - A computer-implemented method for providing an allocation of a filled order made at a particular time, that involves receiving at least a price of a filled order made at a later time; generating a starting allocation across multiple managed accounts based at least in part on allocation factors of each of the multiple managed accounts; generating at least one additional allocation based at least in part on the starting allocation; determining a closest-fitting allocation according to a metric from amongst the starting allocation and the at least one additional allocation, the metric being based at least in part on the price of the filled order made at the later time and on a price of the filled order made at the particular time; and outputting the closest-fitting allocation. | 01-10-2013 |
20140101021 | METHODS FOR POST-TRADE ALLOCATION - A computer-implemented method for providing an allocation of a filled order made at a particular time, that involves receiving at least a price of a filled order made at a later time; generating a starting allocation across multiple managed accounts based at least in part on allocation factors of each of the multiple managed accounts; generating at least one additional allocation based at least in part on the starting allocation; determining a closest-fitting allocation according to a metric from amongst the starting allocation and the at least one additional allocation, the metric being based at least in part on the price of the filled order made at the later time and on a price of the filled order made at the particular time; and outputting the closest-fitting allocation. | 04-10-2014 |
20150058193 | METHODS FOR POST-TRADE ALLOCATION - A computer-implemented method for providing an allocation of a filled order made at a particular time, that involves receiving at least a price of a filled order made at a later time; generating a starting allocation across multiple managed accounts based at least in part on allocation factors of each of the multiple managed accounts; generating at least one additional allocation based at least in part on the starting allocation; determining a closest-fitting allocation according to a metric from amongst the starting allocation and the at least one additional allocation, the metric being based at least in part on the price of the filled order made at the later time and on a price of the filled order made at the particular time; and outputting the closest-fitting allocation. | 02-26-2015 |
Patent application number | Description | Published |
20110074626 | IMPROVEMENT OF THE ACCURACY AND PERFORMANCE OF A HYBRID POSITIONING SYSTEM - The present disclosure relates to a method for determining the position of a WLAN positioning system (WPS) and satellite positioning system (SPS) enabled device. The method can include determining an initial WPS position of the device using WPS, calculating an error region around the initial WPS position of the device, dividing the error region into a plurality of points, obtaining satellite measurements from at least two satellites in view of the device, determining a variation in a receiver clock bias for each point within the error region based on the satellite measurements from at least two satellites, selecting the point with the lowest variation in the receiver clock bias, and determining whether or not to use the point with the lowest variation in receiver clock bias to refine the initial WPS position of the device. | 03-31-2011 |
20110080317 | METHOD OF DETERMINING POSITION IN A HYBRID POSITIONING SYSTEM USING A DILUTION OF PRECISION METRIC - The disclosed subject matter relates to a method for determining the position of a device in a hybrid positioning system. The method includes determining an initial position estimate of a device using a non-satellite positioning system, obtaining satellite measurements from less than four satellites, wherein the measurements include each satellite's position with respect to the initial position estimate, determining a dilution of precision (DOP) based on the satellite measurements, if the DOP is small, refining the initial position estimate using the satellite measurements, and if the DOP is large, providing the initial estimate as a final position estimate for the device. In some embodiments, the non-satellite positioning system is a WLAN positioning system. In some embodiments, the method includes obtaining satellite measurements from two satellites or three satellites. | 04-07-2011 |
20110080318 | Determining A Dilution of Precision Metric Using Two or Three GPS Satellites - The disclosed subject matter relates to a method for determining a Dilution of Precision Metric (DOP) with less than four satellites in a hybrid positioning system. In some embodiments, the method includes determining an initial position estimate of a device using a non-satellite positioning system, obtaining satellite measurements from less than four satellites, wherein the measurements include each satellite's position with respect to the initial position estimate, constructing a geometry matrix corresponding to the measurements from the less than four satellites using each satellite's position and the initial position estimate, multiplying the geometry matrix by its transpose to construct an H matrix, determining an inverse of the H matrix, and determining the DOP based on a sum of the diagonal elements of the inverse H matrix. In some embodiments, the non-satellite positioning system is a WLAN positioning system. | 04-07-2011 |
Patent application number | Description | Published |
20130162481 | SYSTEMS AND METHODS FOR CALIBRATION OF INDOOR GEOLOCATION - In a system facilitating the calibration of a map-point grid for an indoor location, the grid includes several map points, each having a radio frequency (RF) data fingerprint associated therewith. RF data are received from a device associated with a user, and a map point is identified or determined based on, at least in part, the received RF data. A reliability of a fingerprint to be associated with the map point is computed based on, at least in part, a comparison of a parameter associated with the map point with reference data associated with the indoor location such as topology of the location, and speed and orientation of the user. A fingerprint is associated with the first map point based on, at least in part, the first RF data and the computed reliability. The computation of the reliability may also be based on additional RF data and location determination based thereon and/or user feedback. An existing fingerprint may be adjusted based on the received RF data. | 06-27-2013 |
20140018095 | SYSTEMS AND METHODS FOR CALIBRATION BASED INDOOR GEOLOCATION - In a system facilitating the calibration of a map-point grid for an indoor location determination, the grid includes several map points, each having a radio frequency (RF) data fingerprint being associated therewith. At least one of: (i) RF signal data from several RF sources, (ii) a user specified location indication, and (ii) tracking data from a sensor, the tracking data indicating a user's movement relative to a base map point, are received. The map-point grid is updated based on, at least in part, at least one of (i) adjusted RF data, the received RF data being adjusted using systematic analysis thereof, (ii) the tracking data, and (iii) the location indication. A user's location may be determined based on the fingerprints associated with the map-point grid, and sensor data. | 01-16-2014 |
Patent application number | Description | Published |
20090049347 | Method and apparatus for bit error determination in multi-tone transceivers - A transceiver with a plurality of components coupled to one another to form a transmit path and a receive path for multi-tone modulation of user data across a communication medium. The transceiver includes a framer and a deframer. The framer is configured to momentarily suspend framing of user data before processing bits associated with tones targeted for reference data transport and injects the pre-agreed reference pattern therein, after which framing of user data resumes. The deframer is configured to momentarily suspend deframing of received user data bits before processing bits associated with tones targeted for transport of pre-agreed reference data and extracts the received reference bits thereof for comparison with the corresponding pre-agreed reference bits to determine errors therein, after which deframing of user data resumes. | 02-19-2009 |
20100002755 | Method and apparatus for a multi-tone modem - A multi-tone modem with shared and discrete components forming a transmit path and a receive path configured to couple to a wired communication medium to communicate at least one multi-tone modulated communication channel thereon. The modem includes a multi-tone modulator component and a configurable frequency up converter component. The multi-tone modulator component is configured for multi-tone modulation and demodulation of a transmitted and received communication channel at a base band frequency range. The configurable frequency up converter component is coupled to the multi-tone modulator to selectably up convert the frequency range of the transmitted base band signal from the multi-tone modulator to that of a selected communication band and down convert received signals from the selected communication band to the base band for demodulation by the multi-tone modulator. | 01-07-2010 |
20100046738 | Method and apparatus for DMT crosstalk cancellation - An apparatus for precoding multi-tone modulated transmissions of a plurality of communication channels over bundled subscriber lines. The apparatus includes a pseudo symbol controller and a precoder. The pseudo symbol controller detects a victim communication channel and an interferer communication channel having non-matching symbol rates, and transforms the interferor channel into a pseudo-symbol having both a substantially similar length as a corresponding symbol of the victim channel together with defined tonal characteristics expressed in terms of the interferor channel. The precoder assigns crosstalk coefficients to selected sub-channels or tones of the pseudo symbol and precodes the victim channel with the pseudo symbol using the crosstalk coefficients; thereby generating a precoded victim symbol which exhibits reduced crosstalk between the selected victim and interferor. | 02-25-2010 |
20110058535 | Primary user detection - A low complexity primary user detection system is disclosed. Signals are filtered to reduce the number of signals that must be processed. Width and PRI of the signals are used to match a constellation associated with a primary user. If the constellation is matched, communication parameters are adjusted to make way for the primary user. | 03-10-2011 |
20110096739 | CHANNEL SCANNING AND CHANNEL SELECTION IN A WIRELESS COMMUNICATION NETWORK - A method and apparatus to select the best channel of a wireless network for data communication at any given time, during normal operation of the network, is described. The network may be an IEEE standard 802.11 compliant network. Channel scanning may be performed in any station on the wireless network, such as an access point (AP) or a mobile station, or both. Channel scanning may be performed during data communication idle time, or simultaneously with data communication on the network. The technique can be implemented in a multiple-input multiple-output (MIMO) communication system, where the antenna or antennas used for channel scanning can be selected dynamically during operation, to optimize one or more performance characteristics. | 04-28-2011 |
20110110345 | MESSAGE ROUTING IN WIRELESS MESH NETWORKS - Disclosed are methods and apparatuses related to the routing of communications in a wireless mesh network so as to provide improved range, reliability and/or throughput. At least some aspects of the techniques and apparatuses can be implemented in an intermediary node (relay node) on a wireless mesh network. The relay node and other devices on the wireless network may implement a form of multiple-input multiple-output (MIMO) communication, such as multi-user MIMO (MU-MIMO). The devices on the network can communicate in accordance with IEEE standard 802.11. | 05-12-2011 |
20110268060 | ACCESS POINT RANGE EXTENSION - A technique for expanding the range of coverage for a wireless local area network (WLAN) involves locating a wireless access point (WAP) away from an interworking unit (IWU) at the edges of the WLAN and a (typically) wired network. The WAP, when located away from the IWU, can be referred to as an untethered access point (UAP) because it communicates with the IWU on a wireless channel. Stations on the WLAN will be capable of communicating with the WAP, whether or not it is a UAP, via a known or convenient wireless protocol, such as Wi-Fi, and may or may not be capable of communicating with one another via a direct station-to-station protocol. | 11-03-2011 |
20110293027 | ADJUSTABLE OPERATIONAL STATE WIRELESS MIMO - Wireless devices capable of one or more of extended multiple input multiple output (MIMO), dual bonded, and dual concurrent operation are disclosed. Methods for switching between the operational states for wireless devices capable of multiple operational states are also disclosed. | 12-01-2011 |
20120307934 | Quality of Service and Rate Selection - Adjusting a Modulation and Coding Scheme (MCS) or more generally, Layer One parameters, for a data packet based on packet information and priority is disclosed. The packet information can typically be extracted from the packet's header. Considering packet-specific information enables cross-layer optimization that can include consideration of packet error rate (PER) constraints, delay constraints, relative importance of packets within a data stream, beamforming (e.g., off or on, implicit or explicit—longer distances are more likely to merit implicit beamforming) constraints, and aggregation as a function of MCS or channel condition (more aggregation is generally desirable for higher MCS or better channels), to name several examples. It is also possible to differentiate drop probability based on the importance of frames like anchor frames, etc. | 12-06-2012 |
20140293983 | WAP SUPPORTING COMPLEMENTARY SUBNETS IN A WLAN - A wireless access point (WAP) including: a station set identifier and a subnet controller. The station set identifier is configured to identify at least one set of at least two station nodes among the plurality of station nodes and complementary communication options for each station in the at least one set which facilitate concurrent communications between the WAP and the stations in the set. The subnet controller is configured both to generate subnets equal in number to a number of stations in at least one set, and for each subnet an associated beacon channel discrete from the beacon channels of other subnets, together with any required aggregate channels matching each station's identified communication option and an associated medium access control, and further to control transmission of data from the WAP to the at least two station nodes concurrently on the associated subnets. | 10-02-2014 |