Kabushiki Kaisha Toshiba

Ziming Zhu

Zubeir Bocus

Magnus Stig Torsten Sandell

Timothy David Farnham

Mohammud Zubeir Bocus

Chrysanthi Paschou

Xingchi Liu

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

A method is disclosed for searching and locating a target device emitting a wireless signal. The signal strength of the wireless signal is detectable and measurable. The method comprises defining a distribution of the signal strength within the search area, on the basis of an initial condition, then iteratively performing steps of interrogating the distribution to determine a plurality of inquiry locations, determining signal strength at those inquiry locations, and updating the distribution on the basis of the determined signal strengths. Iteration continues until a convergence condition is reached, whereby inquiry locations become proximate within a threshold.

Method and system for searching and locating radio devices

Allocation of computational resource to requested tasks is achieved by running a scheduling operation across a plurality of schedulers, each in communication with a subset of network entities, the schedulers establishing a virtual bus. In certain embodiments, the scheduling operation is able to run continuously, allocating newly arriving task requests as resources become available.

Allocation of processing computers based on priority lists

In a computing system in which resources are available for performance of computing tasks allocated to them, and tasks are requested by requesting computers, a scheduler is associated with each of the requesting computers, to enable that computer to obtain resource for performance of the tasks. Each scheduler obtains resources, in accordance with a locally formulated preference list of resources, on the basis of scheduling tokens issued by resources indicative of reciprocal prioritisation of tasks by resources.

Allocation of heterogeneous computational resource

A method for controlling access to a resource, the method performed by a system comprising a first component, a second component and a third component, the first component comprising a first cryptographic key; the second component comprising a second cryptographic key. The method comprising: transmitting a signal; generating, by the first component a first channel observation; generating, by the second component, a second channel observation, and a first data value based on the second channel observation and the second cryptographic key; transmitting, by the second component, the second channel observation and the first data value; and verifying the second component based on the second channel observation, the first cryptographic key and the first data value; and allowing access to the resource in response to determining that the second component is: 1) permitted to gain access to the resource; and 2) located proximate to the first component.

Preventing replay/relay attacks in keyless entry systems

A computer implemented method of providing a localised consensus mechanism for a distributed ledger comprising a plurality of nodes. The method comprises, in one or more nodes of the plurality of nodes, receiving, from a sensor associated with the node of the plurality of nodes, a signal indicative of a physical property sensed by the sensor and generating, based on the received signal, an initial transaction record. The method further comprises forming a localised consensus of a transaction record to be added to the distributed ledger based on the initial transaction records generated by the one or more nodes of the plurality of nodes, generating said transaction record using the localised consensus and adding the transaction record to the distributed ledger.

Method and system to ensure trustworthy data exchange in a distributed ledger system

A method of remotely controlling access to a resource comprising: transmitting a plurality of signals wherein each signal is transmitted using a different antenna from a plurality of antennas, detecting a received signal at a remote key, performing angle-of-arrival analysis on the received signal; and transmitting an authorisation message from the remote key if the received signal comprises a plurality of signal components with a predetermined characteristic.

Signal direction detection based vehicle remote entry control method and device

A method of remotely controlling access to a resource. The method comprising receiving a plurality of signals from a remote key wherein the remote key only transmits the plurality of signals if the remote key is moving. The method further comprises estimating a first and a second position of the remote key based on a characteristic of a first and a second signal respectively, and unlocking access to the resource if the remote key is moving towards the resource based on the first and the second estimated position.

Method and device to prevent relay attacks in remote vehicle entry system

A method of determining a direction of arrival of a signal at a device comprising an antenna with multiple antenna elements, in a processor of the device configured to calculate an average signal for each antenna element based on the signal received at the antenna element over N time slots, determine respective phases of the average signals and determine at least one of an azimuth and elevation angle of the signal using the determined phases and information of the location of the antenna elements.

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Bristol, United Kingdom

Ziming Zhu