Abstract: A device for preventing a human body from being jammed by using a change in capacitance, includes: a sensor unit which detects a change in capacitance corresponding to a gap between an external conductor pressed by a human body approaching a driven object and an internal conductor; a signal processing unit which compares a detection signal of the sensor unit with a reference value and outputs a jamming occurrence signal indicating the human body being jammed in the driven object; a motor driving unit which drives a motor to move the driven object; and a control unit which controls the motor driving unit to stop or move the driven object in the opposite direction when the jamming occurrence signal is received from the signal processing unit, thereby preventing a safety accident caused by the human body being jammed.

Abstract: An embedded multimedia card (eMMC), and a method of operating an eMMC, determine whether a vendor mode is to be entered by parsing a command argument of a command received from a host or a pattern of write data received from the host; receive vendor mode attribute information for the vendor mode, based on a result of determining whether the vendor mode is to be entered; and performing a vendor mode operation in the vendor mode based on the vendor mode attribute information.

Abstract: A method for operating a system including a memory device and a host is provided. The method includes requesting, by the host, the memory device to transmit a context ID list including context IDs, assigning, by the host, a context ID among the context IDs to an application based on the context ID list received from the memory device, and transmitting, by the host, the context ID assigned to the application to the memory device when the host transmits a file corresponding to the application to the memory device or receives the file from the memory device.

Abstract: An embedded multimedia card (eMMC), and a method of operating an eMMC, determine whether a vendor mode is to be entered by parsing a command argument of a command received from a host or a pattern of write data received from the host; receive vendor mode attribute information for the vendor mode, based on a result of determining whether the vendor mode is to be entered; and performing a vendor mode operation in the vendor mode based on the vendor mode attribute information.

Abstract: A memory card system, and a method of transmitting background information, in which the memory card system includes a host generating a background command; and a memory card providing the host with background information on whether the memory card supports a background operation, in response to the background command. Because the memory card system performs the background operation during an idle period, an operation of the memory card to be performed later can be prepared and an actual time for an operation such as read and write of the memory card can be reduced, so that performance of the memory card is considerably improved.

Abstract: A memory card system and method of transmitting lifetime information thereof includes a host generating a lifetime information command, and a memory card including a memory to store data provided from the host, the memory card providing the host with lifetime information of the memory in response to the lifetime information command of the host.

Abstract: A contactless card including an antenna coil, a resonant capacitor coupled between both end terminals of the antenna, a plurality of capacitors coupled in parallel with the terminals of the antenna correspondingly through switches, a shunt transistor coupled between the terminals of the antenna, forming a bypassing current path, a rectifier coupled between the terminals of the antenna, generating a DC voltage, and a control circuit sensing the DC voltage and controlling a gate voltage of the shunt transistor and on/off conditions of the switches in accordance with the sensed DC voltage.