Kabushiki Kaisha Toshiba

Timothy David Farnham

Aftab Khan

Fengming Cao

Parag Kulkarni

Ziming Zhu

Zubeir Bocus

Zhenzhe Zhong

Gregory Gamboa

A computer-implemented method of validating a data transfer from a data provider to a data user via a first computing node of a network is provided. The method comprises. The network comprises a plurality of computing nodes. The computing nodes are in communication with a distributed ledger storing, for each computing node, a respective reputation score derived based on previous data transfers associated with the respective node. The method comprises obtaining, by the first node, a data transfer record specifying the data transfer, and submitting, by the first node, the data transfer record to a smart contract on the ledger for validating the data record by determining that the reputation score of the first node exceeds a predefined threshold.

Decentralised and trustworthy logging method and system for data exchange traceability

The present disclosure provides an error detector for determining an error vector between a radio trajectory and an image trajectory. The error detector includes: an input for monitoring a radio trajectory of an object from a radio signal and an image trajectory of an object from an image over an observation area; a correlation module arranged to correlate the radio trajectory with the image trajectory; an error module arranged to determine an error vector between the radio trajectory and the image trajectory; and an output arranged to transmit the error vector for use in determining an estimated trajectory of a target based on a target trajectory from a radio signal.

Compensating radio tracking with comparison to image based tracking

A method of identifying item selection by a user, the method comprising: receiving signals at a receiver of a fixed terminal from a transmitter of a mobile terminal associated with the user, generating a signature at the receiver of the fixed terminal of the movement of the user based on changes in the signals received from the transmitter, matching the signature with prior stored movement information to determine the movement of the user, and identifying the item being selected by the user based on the determined movement of the user.

Identification of selected items through radiolocation and movement detection

A method of operating a network comprising an edge node and a server. The method comprises obtaining, by the edge node, a plurality of data samples, determining, by the edge node, a plurality of output labels by applying a first machine learning model using an input memory having a first input memory size to the plurality of data samples, calculating, by the edge node, an error term based on the confidence score of a first output label from the plurality of output labels, determining, by the edge node, based on the error term, whether to modify the first input memory size of the machine learning model and, if so, generating a second machine learning model based on the first machine learning model and a second input memory size.

Method for adaptive context length control for on-line edge learning

A computer implemented method of routing service requests to service instances in a service mesh. The method comprises monitoring one or more performance characteristics of each of a plurality of network links to service instances. The method further comprises making a prediction of the network latency of transmitting a service request via each of at least two of the plurality of network links and selecting one of the plurality of service instances and routing the service request thereto based on the predictions of the network latencies.

Service request routing

A radio-location method of locating a target device that is contained within a region of space, comprising obtaining a first set of detected signals by detecting, at a plurality of points in space, a beacon signal from the target device, or by detecting at the target device, beacon signals sent from one or more radio transmitters in the region of space; determining a current estimate of the target device's location; obtaining successive sets of detected signals, for each successive set of detected signals: determining one or more candidate locations for the target device; comparing the candidate locations with a radio map of the region of space, identifying one or more feasible candidate locations that are consistent with the radio map; determining a new estimate of the target device's location based on the one or more feasible candidate locations; and setting the new estimate as the current estimate of the target device's location.

Radio-location method for locating a target device contained within a region of space

Radio resource allocation is carried out on the basis of a radio environment map. The radio environment map is constructed based on received reports of signal quality and/or strength. Using history and triangulation, estimates of station positions can be determined, and expectations can be determined for interference between stations and between stations and access points. Resource requests can then be fulfilled on the basis of separate treatment of requests which have little potential for causing interference, and those which have potential to cause interference.

Radio resource allocation in a wireless communication network

A method for managing the configuration of a wireless connection used to transmit sensor readings from a sensor to a data collection facility, the method comprising receiving a sensor reading from the sensor, comparing the value of the sensor reading with a forecast value for the sensor reading, determining the value of a normality parameter for the sensor, wherein the value of the normality parameter defines the extent to which the value of the sensor reading differs from the forecast value; and determining whether to retain a current configuration of the wireless connection between the sensor and data collection facility or to change the configuration, wherein the determination to retain the current configuration or change configuration is based at least in part on the value of the normality parameter.

Method for managing the configuration of a wireless connection used to transmit sensor readings from a sensor to a data collection facility

A device and method for wirelessly communicating over a transmission channel with one or more wireless devices. The device comprises a wireless network interface and a controller. The controller is configured to receive a wireless signal via the wireless network interface, if strength of the received signal is greater than a first threshold, determine that the channel is busy, and, if the strength of the received signal is not greater than the first threshold, but is greater than a second threshold that is lower than the first threshold, determine whether the received signal is intended for the device and if so, determine that the channel is busy.

Multi-threshold listening method for dynamic sensitivity control enabled wireless MAC

A method in a wireless system, including: receiving, at a wireless device, over first and second networks, from each of plural radios of the first and second networks, respective first and second sets of reference signals received from first radios of the first and second networks, and plural further reference signals received from remaining radios of plural radios of the first and second networks, the first radios of the first and second networks located at a common location; calculating first and second sets of normalized reference signals from ratios for each further reference signal of the first and second sets of reference signals with the first and second reference signals of the first and second sets of reference signals; comparing predictions of signal loss based on the first and second sets of normalized reference signals; and determining an estimate of shadow fading or signal reflectors using the comparison result.

Wireless communication methods and apparatus

Determining a location estimate of a wireless communications device can depend on the dynamic and/or static state of the device. Compensation processing is applied to a location estimate (or to information from which such an estimate is derived, in use) if required, given the dynamic and/or static state of the device.

Dynamic compensation for wireless device location determination

The present invention relates to wireless communications systems, and in particular the selection of one or more available wireless connections suitable for use with a desired service or set of services. The present invention provides a method of and apparatus for selecting one or more wireless connections from a plurality of available wireless connections between a mobile terminal and one or more base stations for a service requested by a user of the terminal or base stations, the method comprising: determining one or more connection characteristics for each said available connection; determining a utility value for each said available connection; selecting one or more said connections based on said determined utility values; wherein each said connection utility value for a said available connection is based on the acceptability for said service of the determined connection characteristics for that connection according to a fuzzy logic determination.

Automatic wireless connection selection

The present invention relates to wireless communications, and in particular although not exclusively, to networks of indoor collocated or overlapping wireless coverage areas especially those intended for operation in unlicensed spectrum such as the Industrial Scientific and Medical (ISM) bands. The present invention provides a method of controlling the transmission power associated with an air interface channel, the method comprising determining a quality of service measure for a signal to be transmitted on a second air interference channel; determining an interference measure corresponding to the interference on said second air interface channel which will be caused by transmissions on said first air interface channel; requesting the changing of the transmission power associated with the first air interface channel when the signal is to be transmitted on the second air interface channel, when the quality of service measure is above a predetermined value and when the interference measure is above a predetermined value for said quality of service value.

Growing community of inventors

Bristol, United Kingdom

Timothy David Farnham