公开(公告)号：US20240330465A1

公开(公告)日：2024-10-03

申请号：US18624121

申请日：2024-04-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Scalar, Inc.

Inventor： Kazuya KUMAZAWA ,  Naoki YAMAMURO ,  Yohei NAKANISHI ,  Shigeki MATSUMOTO ,  Takaya UCHINO ,  Wataru FUKATSU

IPC: G06F21/57

CPC classification number: G06F21/57 ,  G06F2221/034

Abstract: A client server includes: a storage that stores a distributed ledger; and a processor that performs a plurality of verification processes for one or more files and one or more confirmation times. In the distributed ledger, one or more file hash values and one or more time stamp tokens are stored in time series. The plurality of verification processes include a file verification process, a confirmation time verification process, and a sequence verification process. The file verification process is a process of verifying whether or not the one or more files have been tampered with. The confirmation time verification process is a process of verifying whether or not the one or more confirmation times have been tampered with. The sequence verification process is a process of verifying a sequence of the one or more files and the one or more confirmation times.

公开(公告)号：US20240056314A1

公开(公告)日：2024-02-15

申请号：US18260545

申请日：2021-10-11

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Naoki YAMAMURO ,  Junya WATANABE ,  Shigeki MATSUMOTO ,  Yoshikazu JIKUHARA ,  Ryota SUZUKI ,  Yuki YAMASHITA ,  Hitoshi MURAKAMI

IPC: H04L9/32 ,  H04L9/00

CPC classification number: H04L9/3263 ,  H04L9/50 ,  H04L9/3297

Abstract: A data management system includes a plurality of data management apparatuses, a certification authority group, and a time stamp authority group. In making an application for a proof of existence of invention information, the data management apparatus generates an invention hash, and transmits the invention hash to selected time stamp authorities of the time stamp authority group. Each of the time stamp authorities having received the invention hash generates a time stamp token. The data management apparatus acquires the time stamp token from each of the plurality of time stamp authorities to which the invention hash has been transmitted.

公开(公告)号：US20230289385A1

公开(公告)日：2023-09-14

申请号：US18149703

申请日：2023-01-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yosuke MORIUCHI ,  Ryo YAMADA ,  Ayana ICHIKAWA ,  Takashi MIZUNO ,  Kimi SUGAWARA ,  Shigeki MATSUMOTO

IPC: G06F16/787 ,  H04N7/18 ,  H04N5/77 ,  G06F16/71

CPC classification number: G06F16/787 ,  G06F16/71 ,  H04N5/772 ,  H04N7/183

Abstract: An information processing device includes a storage unit and a controller. The storage unit is configured to store video information that is information on a video captured by an in-vehicle camera and uploaded by a first user. The controller is configured to execute accepting designation of a point or a section from a second user, and extracting a first video including the designated point or section from among a plurality of the uploaded videos.