US Patent 10579813 Database system and database processing method
Patent 10579813 was granted and assigned to Nippon Telegraph and Telephone on March, 2020 by the United States Patent and Trademark Office.
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A database system comprises a determining part 13 determining whether or not to conceal information to be registered in a database, a terminal device 1 that, if the determining part 13 determines that the information is to be concealed, generates N information fragments by secret-sharing the information and sends the N information fragments to a system management device 2, where N is a predetermined positive integer, the system management device 2 sending the N information fragments received from the terminal device 1 to N different database devices 3, and N database devices 3 each storing one of N information fragments received from the system management device 2.
US Patent 10579813 Database system and database processing method
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