Korea Advanced Institute of Science and Technology

Inje University Industry-Academic Cooperation Foundation

Inje University Industry-cooperation Foundation

Chul Soo Kim

Nam Yong Lee

Jinhong Yang

Jin Hong Yang

Sanghyun Lee

Md Mehedi Hassan Onik

Various embodiments provide a computer device for attenuating motion artifacts in photoplethysmography (PPG) in real time and a method using the same. The computer device obtains a primarily restored PPG AC signal from a distorted PPG signal by using an exponentially weighted moving average filter and restores the final PPG AC signal from the primarily restored PPG AC signal through block interleaving. The computer device includes an initial unit obtaining a basic period of a PPG signal from a PPG sensor in an initial state, an update unit obtaining a waveform and period of a PPG signal not having distortion from the PPG sensor in the state in which motion artifacts are not present, a compensation unit detecting the final PPG AC signal by restoring a waveform of the distorted PPG signal, and a command unit outputting the final PPG AC signal.

Computer device for attenuating motion artifacts in photoplethysmography in real time in order to reduce distortion attributable to change in distance of sensor and method using the same

Disclosed herein are method and system for modifying transactions already recorded on blockchains. The method for managing transactions based on blockchains may include a process for proceeding with mining blocks by separating approval and modification of transactions by using transaction approval block for proving approval of transactions and transaction modification block for proving modification of transactions.

Method and apparatus for blockchains with modifiable recorded transactions

Incidents involving confidentiality and vigilance against user privacy invasions raise doubts as to current third-party data collection procedures. Personally identifiable information (PII) is being abused for medical data breaches, identity theft, spam, phishing, cyber spying, etc. A great amount of data is flowing from users to companies for prediction and analysis of data-centric markets. It is thus difficult to track PII flow and genuineness. Blockchain technology, which is an 'immutable' distributed ledger, can efficiently track PII exchange, storing, and distribution. In contrast, the EU general data protection regulation (GDPR) in progress claims “a right to forget” and a right “to delete”. However, the present specification proposes an off-chain blockchain architecture using both a local database and a distributed ledger to guarantee a trustable PII life cycle.

Blockchain architecture conforming to general data protection regulation for management of personally identifiable information

Disclosed are a method and system for protecting intellectual property rights on digital content using smart propertization. The method of protecting intellectual property rights on digital content includes determining whether to decode encoded digital content based on the digital data indicative of a license for the digital content recorded on a blockchain.

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Gyeongsangnam-do, South Korea

Chul Soo Kim