Samsung Electronics Co., Ltd.

Mi-Kyoung Park

Sun-Young Lim

Dong-Yang Lee

Ju-yun Jung

Bu-Il Jung

Hyuk Soo Han

Min-Yeab Choo

Sung-Ho Cho

Jong Hwa Kim

Do-Geun Kim

Jong Moo Choi

Hee-Joo Choi

Hee Kwon Park

A memory system includes a memory controller, a memory cell array, a location information storage unit, an address mapping table, an address conversion unit, and a mapping information calculation unit. The memory controller generates a logical address signal and an address re-mapping command. The memory cell array includes a plurality of logic blocks. The location information storage unit stores location information corresponding to faulty memory cells included in the memory cell array. The address mapping table stores address mapping information. The address conversion unit converts the logical address signal to a physical address signal corresponding to the memory cell array based on the address mapping information. The mapping information calculation unit generates the address mapping information to reduce the number of logic blocks including the faulty memory cells based on the location information upon the mapping information calculation unit receiving the address re-mapping command.

Memory system capable of re-mapping address

A method of repairing a memory device including a boot memory region, a normal memory region, and a redundant memory region, the redundant memory region including a plurality of repair memory units, includes repairing the boot memory region by performing at least one of excluding first fault memory units of the boot memory region from use as storage and replacing the first fault memory units with boot repair memory units of the repair memory units, each of the first fault memory units having at least one fault memory cell; and after the repairing the boot memory region, repairing the normal memory region by performing at least one of excluding second fault memory units from use as storage and replacing the second fault memory units with normal repair memory units of the repair memory units.

Method of repairing a memory device and method of booting a system including the memory device

A virtual system comprises hardware, a virtualization layer virtualizing the hardware, a virtual machine monitor, a user domain operating using the virtualized hardware, and a root domain operating using the virtualized hardware and managing the user domain. The virtual machine monitor analyzes an operation performed by the user domain in real time and stores resulting analysis information in the root domain.

Virtual system and method of analyzing operation of virtual system

Growing community of inventors

Seoul, South Korea

Mi-Kyoung Park