Patent ID: 7904638

Claim:
A nonvolatile memory card, comprising: a nonvolatile memory; two or more nonvolatile memory card controllers, having properties different from each other; and a nonvolatile memory controller configured to commonly operate with the two or more nonvolatile memory card controllers to interface data access from each of the two or more nonvolatile memory card controllers to the nonvolatile memory, wherein the two or more nonvolatile memory card controllers simultaneously perform direct communication of read/write data with an external host, wherein the two or more nonvolatile memory card controllers both directly receive an interface signal and a select signal from the external host, and wherein the interface signal communicates said read/write data between the external host and the two or more nonvolatile memory card controllers simultaneously, and wherein the select signal includes switch instructions for switching on/off the operation of the first or second nonvolatile memory card controllers.