Samsung Electronics Co., Ltd.

Other

Juice Co., Ltd.

Chang Ho Yun

Seung-hun Lee

Doo Hwan Oh

Jin Hun Jeong

Jun Ho Kim

Jong Won Park

Kyung-Hee Han

Dong Sam Kim

Provided is an operating method of a storage device. The method includes providing temperature information of each of a plurality of volatile memory devices in the storage device to a host device; and receiving a setting command related to a refresh operation of the plurality of volatile memory devices from the host device, wherein the plurality of volatile memory devices are classified into groups based on temperature information, and wherein the setting command indicates a number of rows of the plurality of volatile memory devices to be refreshed differently for each of the groups based on the temperature information.

Memory device, storage module, host and operating methods for performing a refresh operation based on temperature information

Disclosed are a harmony symbol input device and method using a dedicated chord input unit. The harmony symbol input device includes: a musical notation provider configured to visualize and provide a musical notation; a chord input unit provider configured to provide a dedicated chord input unit for inputting a harmony symbol in each harmony section of the musical notation; and a harmony symbol display part configured to repeat an operation that provides highlighting for a specific harmony section in a progression order of the musical notation and displays the harmony symbol received from the dedicated chord input unit in relation to the highlighting.

Harmony symbol input device and method using dedicated chord input unit

Disclosed is a device 10 for filtering agricultural water. At least one protruding part 44 is formed on the circumferential surface of a lower shell 20 in a manner that radially projects and axially extends; the inner surface of the protruding part 44 provides a particulate matter accommodating chamber 46; an exhaust port 38 is formed in the lower end of the lower shell 20, the exhaust port 38 being communicated with the particulate matter accommodating chamber 46; and a valve 40 is provided in the exhaust port 38.

Device for filtering agricultural water

Growing community of inventors

Seoul, South Korea

Chang Ho Yun