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    Verification terminal
    1.
    发明授权
    Verification terminal 有权

    公开(公告)号：US11374942B2

    公开(公告)日：2022-06-28

    申请号：US16279089

    申请日：2019-02-19

    申请人： DENSO CORPORATION

    发明人： Tatsuya Okabe ,  Eiichi Okuno ,  Takao Nojiri

    IPC分类号： H04L29/00 ,  H04L9/40 ,  G06F16/23 ,  H04W12/08 ,  H04W12/10 ,  H04W4/46

    摘要： In a verification terminal for verifying properness of an information item composed of a data string, a storage unit stores an own-terminal information item comprised of a data string, and a verification value generation unit generates a hash value of the own-terminal information item stored in the storage unit as an own-terminal hash value. A verification value acquisition unit communicates with at least one other verification terminal that should store an other-terminal information item t to thereby acquire a hash value of the other-terminal information item from the at least one other verification terminal as an other-terminal hash value. The other-terminal information item is conditioned to be identical to the own-terminal information item. A verification execution unit verifies properness of the own-terminal information item in accordance with whether the own-terminal hash value is consistent with the other-terminal hash value.

    Information code and information code generation method
    2.
    发明授权
    Information code and information code generation method 有权

    公开(公告)号：US12079676B2

    公开(公告)日：2024-09-03

    申请号：US18062362

    申请日：2022-12-06

    申请人： DENSO CORPORATION

    发明人： Tatsuya Okabe

    IPC分类号： G06K19/06

    CPC分类号： G06K19/06028 ,  G06K19/06037

    摘要： An information code that records information read by a first reader and a second reader, includes: a plurality of bar areas; and a plurality of space areas disposed between the plurality of bar areas. The plurality of the bar areas and the plurality of space areas provide a barcode for recording a first information recognized by the first reader. At least one of the plurality of bar areas and the plurality of space areas provide a second information recognized by the second reader in a format including a hash value with an arrangement of a plurality of colors defined so as not to change a discrimination between the bar areas and the space areas by the first reader.

    Verification terminal and verification system
    3.
    发明授权
    Verification terminal and verification system 有权

    公开(公告)号：US11431474B2

    公开(公告)日：2022-08-30

    申请号：US16288484

    申请日：2019-02-28

    申请人： DENSO CORPORATION

    发明人： Tatsuya Okabe ,  Eiichi Okuno ,  Takao Nojiri

    IPC分类号： H04L9/06 ,  H04L9/32

    摘要： A verification terminal includes a storage unit that stores partial block data. The partial block data is the latest data that a part of block data for update and addition in chronological order. The verification terminal selects a plurality of approval terminals to approve the partial block data stored in the storage unit. When a transaction included in the partial block data stored in the storage unit is updated by the verification terminal, the verification terminal transmits an approval request that requests the selected approval terminals to approve the updated partial block data to which the updated transaction and a hash value of the partial block data before updating are added. The verification terminal executes an update process of the partial block data based on approval results returned from the approval terminals in response to the approval request transmitted by the approval requesting unit.