A circuit is configured to be mounted on a memory module configured to be operationally coupled to a computer system. The memory module has a first number of ranks of double-data-rate (DDR) memory devices configured to be activated concurrently with one another in response to a first number of chip-select...http://www.google.de/patents/US8072837?utm_source=gb-gplus-sharePatent US8072837 - Circuit providing load isolation and memory domain translation for memory module