公开(公告)号：US20240403281A1

公开(公告)日：2024-12-05

申请号：US18633715

申请日：2024-04-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dong Myung Sul ,  Ji Yong Kim ,  Mi Young Jang

IPC: G06F16/22 ,  H04L9/00

Abstract: Provided are a method of creating an index for blockchain data and a device and method for searching for blockchain data. The method of creating an index for blockchain data includes receiving, by a blockchain data search device, data to be stored in a blockchain network from a user application, requesting, by the blockchain data search device, the blockchain network to store the data and receiving a block number of a block in which the data is stored and a transaction identifier (ID) from the blockchain network when storage of the data is completed, and encrypting, by the blockchain data search device, the data and creating an index for the data on the basis of the encrypted data, the block number, and the transaction ID.

公开(公告)号：US11416701B2

公开(公告)日：2022-08-16

申请号：US16686909

申请日：2019-11-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ji Yong Kim ,  Jong Ho Won ,  Mi Young Jang ,  Jang Ho Choi

IPC: G06K9/62 ,  G06T7/90 ,  G06F16/587 ,  G06F16/583 ,  G06F16/55 ,  G06V20/10

Abstract: Provided are a device and method for analyzing spatiotemporal data of a geographical space including one or more regions. The method includes imaging spatiotemporally varying data, selecting a representative image according to each transition state based on a spatiotemporal change in the imaged data, grouping pixels in the selected image by clustering the pixels, and performing group-specific data analyses.