Samsung Electronics Co., Ltd.

Sogang University Research Foundation

Jun Ha Lee

Jung Hwan Choi

Soo Yong Park

Jin Hwan Lee

Jin Seok Heo

Wang Soo Kim

Ju Ho Jeon

Yoo Chang Sung

Ji Woo Park

The present disclosure relates to technology that performs encrypted communication via a network or a bus, and a communication method using a security key between nodes connected via a network or a bus includes setting a critical cluster among multiple nodes, selecting a primary message shared between the set critical clusters, and encrypting a message using a key generated to be valid for a preset period to enable communication between the critical clusters, wherein each of the critical clusters stores the primary message for the preset period according to a same key generation scheme to generate a block, and generates and possesses a new key based on the generated block and a currently used key, so that information about a previous message and a previous key is sequentially accumulated in the new key.

Communication device and method using message history-based security key by means of blockchain

A memory device includes a plurality of receivers that each include a first input terminal coupled to one pin of a plurality of input/output pins. The memory devices further includes a transmitter having an output terminal coupled to the first input terminals of the plurality of receivers. The memory device further includes a control circuit configured to control the transmitter to output a particular test signal. The plurality of receivers are each configured to generate output data based on receiving the particular test signal from the transmitter. The control circuit is further configured to adjust the plurality of receivers based on the output data generated by the plurality of receivers and received at the control circuit from the plurality of receivers.

Memory devices and memory packages

Growing community of inventors

Seoul, South Korea

Jun Ha Lee