Samsung Electronics Co., Ltd.

Cheil Worldwide Inc.

Dong-Ju Roh

Byung-Ki Lee

Sung-Kug Cho

Je-Kyeom Jeon

Sang-Yoon Oh

Jae-Ju Kim

Sungjin Park

Sung-jin Park

Dong-jun Lee

Dongjun Lee

Jong-Ho Choi

Yeonjoo Lee

Yeon Joo Lee

Jongho Choi

Jeeyun Lee

Jee-yun Lee

A key-value storage device includes a non-volatile memory and a controller. The key-value storage device is configured to communicate with a host and includes a controller and a non-volatile memory. The controller is configured to receive, from the host, a first command including a key, a first chunk among multiple chunks included in a value corresponding to the key, and a first chunk index corresponding to the first chunk. The controller is configured to store mapping information of the first chunk in a mapping table based on the key and the first chunk index. The non-volatile memory is configured to store the key and the first chunk based on the mapping information.

Key-value storage device and method of operating the same

A smart toothbrush is provided. The smart toothbrush includes a toothbrush head configured to be provided with bristles, a toothbrush body configured to be connected to the toothbrush head and to be able to be held, a temperature sensor configured to measure a temperature within an oral cavity of a user while the user is brushing teeth using the smart toothbrush, and a processor configured to determine a tooth brushing section in which the user is brushing teeth within the oral cavity, based on a temperature value measured by the temperature sensor.

Method for determining tooth brushing section, and smart toothbrush and electronic device therefor

Electric toothbrush

Growing community of inventors

Uiwang-si, South Korea

Dong-Ju Roh