INFORMATION TRANSACTION METHOD, INFORMATION USER TERMINAL, AND RECORDING MEDIUM

    公开(公告)号:US20220058643A1

    公开(公告)日:2022-02-24

    申请号:US17521018

    申请日:2021-11-08

    Abstract: An information transaction method of the present disclosure includes an information providing phase of providing, by an information provider, information requested by an information user via a distributed ledger of authentication server devices. In the information providing phase, an information provider terminal acquires first transaction data including an information user ID, an information provider ID, and a second information index indicating an index of first information requested by the information user among information items indicated by the first information index published in the distributed ledger, the first transaction data being written in the distributed ledger. The information provider terminal generates first encrypted information by encrypting the first information designated by the second information index, generates second transaction data including the information provider ID, the information user ID, and the first encrypted information, and transmits the second transaction data to an authentication server device.

    FAULT MONITORING METHOD, MONITORING DEVICE, AND RECORDING MEDIUM

    公开(公告)号:US20220004543A1

    公开(公告)日:2022-01-06

    申请号:US17478289

    申请日:2021-09-17

    Abstract: A fault monitoring method is executed by a monitoring device in a fault monitoring system that includes a terminal used by a user, an appliance to be operated by the user, the monitoring device, and a plurality of authentication servers each including a distributed ledger, and includes: obtaining event information stored in the plurality of authentication servers and indicating an event generated in response to a request that includes a processing instruction for the user operating the appliance; obtaining state information indicating whether the appliance is faulty, from the appliance; generating first transaction data including the state information obtained and transmitting the first transaction data to the plurality of authentication servers; and transmitting the processing instruction included in the event information to the appliance, when the appliance is determined to be not faulty from the state information.

    CONTROL METHOD, SERVER, AND RECORDING MEDIUM

    公开(公告)号:US20210365936A1

    公开(公告)日:2021-11-25

    申请号:US17392687

    申请日:2021-08-03

    Abstract: A control method includes: receiving application information including a scheduled date and time of a transaction, from a terminal; calculating, with reference to a distributed ledger, a fee based on a transaction by a first user recorded in the distributed ledger before the scheduled date and time included in the application information; transmitting fee information including the fee, to the terminal; receiving first transaction data including a first token quantity for the transaction, transferring the first transaction data to a plurality of other servers different from a server from among a plurality of servers, and storing a first block including the first transaction data in the distributed ledger; and receiving second transaction data including a second token quantity for the fee, transferring the second transaction data to the plurality of other servers, and storing a second block including the second transaction data in the distributed ledger.

    CONTROL METHOD, CONTROL SYSTEM, FIRST SERVER, AND DATA STRUCTURE

    公开(公告)号:US20210149356A1

    公开(公告)日:2021-05-20

    申请号:US17159714

    申请日:2021-01-27

    Abstract: A control method according to the present disclosure is executed by a first server of servers in a system including one or more IoT devices and the servers. The method includes: obtaining first transaction data including malfunction information indicating that one of the IoT devices is malfunctioning, and time information indicating a time when the IoT device has obtained the malfunction information; transferring the obtained first transaction data to second servers different from the first server; executing, together with the second servers, a first consensus algorithm for an agreement on an authenticity of the first transaction data; and recording a block containing the first transaction data in a distributed ledger of the first server, when the authenticity of the first transaction data is verified by the first consensus algorithm.

    INFORMATION NOTIFICATION METHOD, INFORMATION NOTIFICATION SYSTEM, AND SERVER DEVICE

    公开(公告)号:US20190394111A1

    公开(公告)日:2019-12-26

    申请号:US16562712

    申请日:2019-09-06

    Abstract: An information notification method for providing information from a server device to a plurality of devices connected to a network, including: reading notification information stored in association with information indicating a particular action of a user; acquiring operation histories of the plurality of devices; estimating, based on operation histories of one or more devices owned by the user among the plurality of devices, a no-operation period during which the user is unlikely to operate the one or more devices; determining, based on current operation state of the one or more devices, whether the particular action has been performed outside the no-operation period; and transmitting, when outcome of the determining is affirmative, the notification information associated with the particular action to a destination device among the one or more devices owned by the user. The destination device provides the user with the notification information.

    MANAGEMENT METHOD, MANAGEMENT APPARATUS, AND PROGRAM

    公开(公告)号:US20190384594A1

    公开(公告)日:2019-12-19

    申请号:US16441814

    申请日:2019-06-14

    Abstract: The present disclosure provides a management method for software versions which prevents falsification of information under management. In the management method, a first management apparatus among management apparatuses receives transaction data from an apparatus connected through a network to the first management apparatus, the transaction data including first information on a first version of software, second information on a second version of the software subjected to version upgrade from the first version by a software developer, identification information of the software developer, and an electronic signature. The first management apparatus validates legitimacy of the transaction data using the electronic signature included in the transaction data received. When the transaction data is legitimate, the management apparatuses store the transaction data in distributed ledgers.

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