The control logic for a hot-pluggable memory cartridge for use in a redundant memory system. To implement a hot-pluggable memory cartridge in a redundant memory system, control logic to control the sequence of events for powering-up and powering-down a memory cartridge is provided....http://www.google.com.tw/patents/US6640282?utm_source=gb-gplus-share專利 US6640282 - Hot replace power control sequence logic
