Samsung Electronics Co., Ltd.

Changyong Lee

Kijun Lee

Sunghye Cho

Myungkyu Lee

Sanguhn Cha

Sungrae Kim

Kiheung Kim

Dongkyu Lee

Junhyung Kim

JunHyung Kim

Sukho Lee

Jejin Lee

Dongil Jung

Taeil Kim

Sangyoon Han

Sangho Yoo

Jaeyang Lee

Donghan Ko

An air conditioner including: a compressor; a heat exchanger fluidly connected to the compressor; a pressure sensor provided in a first flow path connecting an outlet of the compressor to an inlet of the first heat exchanger; a temperature sensor provided in a second flow path connected to an outlet of the heat exchanger; and a processor connected to the compressor, the pressure sensor, and the temperature sensor. The processor configured to: acquire a reference index value based on a first reference pressure measured by the pressure sensor and a first reference temperature measured by the temperature sensor, acquire a measurement index value based on a first measurement pressure measured by the pressure sensor and a first measurement temperature measured by the temperature sensor, and display a shortage of a refrigerant of the air conditioner based on the reference index value and the measurement index value.

Air conditioner and controlling method thereof

A memory system includes a memory module having a plurality of memory devices therein. A memory controller is configured to transmit commands and addresses to the memory module in synchronization with a clock, input/output data to and from the memory module in synchronization with a data transfer clock, and perform system error correction operations on data read from the memory module. The plurality of memory devices perform on-die error correction operations, which are different from each other according to a physical location of the stored read data.

Memory systems having memory devices therein with enhanced error correction capability and methods of operating same

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Hwaseong-si, South Korea

Changyong Lee