Patent application number | Description | Published |
20090164710 | SEMICONDUCTOR MEMORY SYSTEM AND ACCESS METHOD THEREOF - A semiconductor memory system and access method thereof. The semiconductor memory system includes a nonvolatile memory and a memory controller. The nonvolatile memory stores monitoring data in one or more of plural memory cells. The memory controller controls the nonvolatile memory. The memory controller detects the monitoring data and adjusts a bias voltage, which is provided to the plural memory cells, in accordance with a result of the detection. | 06-25-2009 |
20090180346 | PORTABLE DATA STORAGE APPARATUS - A memory card includes a non-volatile memory; and a power management unit for receiving an external supply voltage to supply an operating voltage to the non-volatile memory. The power management unit boosts/bypasses the external supply voltage based on whether the external supply voltage is lower than a detection voltage and then outputs the boosted/bypassed voltage as the operating voltage of the non-volatile memory. | 07-16-2009 |
20100011164 | MEMORY SYSTEMS AND METHODS OF INITIALLIZING THE SAME - A memory system is provided includes a host processor, and a plurality of cascade connected memory cards connected to the host processor. Each of the memory cards stores a same default relative card address (RCA) prior to initialization of the memory system. The host processor is configured to sequentially access each memory card using the default RCA, and to change the default RCA to a unique RCA upon each sequential access. | 01-14-2010 |
20120179871 | MEMORY SYSTEMS AND METHODS OF INITIALLIZING THE SAME - A memory system is provided includes a host processor, and a plurality of cascade connected memory cards connected to the host processor. Each of the memory cards stores a same default relative card address (RCA) prior to initialization of the memory system. The host processor is configured to sequentially access each memory card using the default RCA, and to change the default RCA to a unique RCA upon each sequential access. | 07-12-2012 |
20140082250 | EMBEDDED MULTIMEDIA CARD (eMMC), HOST FOR CONTROLLING eMMC, AND METHOD OPERATION FOR eMMC SYSTEM - An eMMC includes flash memory including an extended card specific data (CSD) register (“EXT_CSD register”), and an eMMC controller that controls operation of the flash memory. The eMMC controller is receives a clock from a host via a clock line, receives a SEND_EXT_CSD command from the host via a command line, and provides the host with eMMC information stored in the EXT_CSD register via a data bus in response to the SEND_EXT_CSD command, the eMMC information including maximum operating frequency information for the eMMC. | 03-20-2014 |
20140082398 | EMBEDDED MULTIMEDIA CARD (eMMC), HOST CONTROLLING eMMC, AND METHOD OPERATING eMMC SYSTEM - An embedded multimedia card (eMMC) is provided. The eMMC includes a clock channel receiving a clock output from a host, data channels receiving data signals from the host, and a command channel receiving a SWITCH command including delay offset values from the host so as to adjust a delay of at least one of the data signals, which are received, in response to the delay offset values. | 03-20-2014 |
20140082405 | EMBEDDED MULTIMEDIA CARD (eMMC), HOST CONTROLLING eMMC, AND METHOD OPERATING eMMC SYSTEM - An embedded multimedia card (eMMC) includes a clock channel that receives a clock signal from a host, a command channel that receives a command from the host, a plurality of data channels that transmit data to the host, and a return clock channel that transmits a return clock synchronized with the data to the host. | 03-20-2014 |