Abstract: The present invention relates to a compound capable of lowering the flammability of a non-aqueous electrolyte when included in the non-aqueous electrolyte and improving the life properties of a battery by forming an electrode-electrolyte interface which is stable at high temperatures and low in resistance, and relates to a compound represented by Formula I descried herein, a non-aqueous electrolyte solution and a lithium secondary battery both including the compound, n, m, Ak, and X are described herein.

Abstract: A memory device, a host device and a memory system are provided. The memory device may include a plurality of storage units configured to store data, and at least one device controller configured to, receive a read command from at least one host device and to read data stored in the plurality of storage units in response to the read command, the at least one host device including at least one host memory including a plurality of HPB (high performance boosting) entry storage regions, and provide the at least one host device with a response command, the response command indicating an activation or deactivation of the plurality of HPB entry storage regions, the response command including HPB entry type information which indicates a HPB entry type of the HPB entry storage region.

Abstract: An auxiliary input device of an electronic device may include: a housing that comprises a first portion, a second portion that extends from the first portion in a first direction and on which a first input unit is disposed, and a third portion that extends from the second portion and on which a second input unit is disposed, wherein the housing is configured to be coupled to the outer surface of the electronic device at least one location thereof, wherein the at least one location corresponds to a predetermined short-cut function of the electronic device to be performed.

Abstract: An auxiliary input device of an electronic device may include: a housing that comprises a first portion, a second portion that extends from the first portion in a first direction and on which a first input unit is disposed, and a third portion that extends from the second portion and on which a second input unit is disposed, wherein the housing is configured to be coupled to the outer surface of the electronic device at least one location thereof, wherein the at least one location corresponds to a predetermined short-cut function of the electronic device to be performed.