| Patent application number | Description | Published |
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| 20100125698 | RECORDABLE MEMORY DEVICE - A recordable memory device includes a nonvolatile semiconductor memory, and a controller controlling the nonvolatile semiconductor memory based on a recordable system. The nonvolatile semiconductor memory has a user area capable of directly making an access from a host, and a system area managed by the controller. A data writing to the reformatted user area of the nonvolatile semiconductor memory executes from a start point which is an unused area after the final physical address of old recordable data recorded in the user area before the reformat. The data writing executes from a start point which is a top physical address in the user area, when the start point exceeds the final physical address in the user area. | 05-20-2010 |
| 20100174866 | MEMORY DEVICE, ELECTRONIC DEVICE, AND HOST APPARATUS - A memory device ( | 07-08-2010 |
| 20110035615 | MEMORY CARD HAVING MEMORY DEVICE AND HOST APPARATUS ACCESSING MEMORY CARD - A memory card includes a clock I/O circuit, a data I/O circuit, a delay element, and an adjustment value holding circuit. The clock input/output circuit receives a first clock from a host apparatus. The data I/O circuit receives a second clock from the host apparatus in a write timing adjustment mode. The data I/O circuit transmits and receives data to and from the host apparatus in a data transfer mode. In the write timing adjustment mode, the delay element adjusts a phase of the second clock in accordance with the first clock so as to receive the data received in the data transfer mode in response to the first clock. The adjustment value holding circuit holds an adjustment value for the phase of the second clock adjusted. In the data transfer mode, the delay element adjusts a phase of the data in accordance with the adjustment value. | 02-10-2011 |
| Patent application number | Description | Published |
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| 20100169699 | MEMORY DEVICE, HOST DEVICE, AND SAMPLING CLOCK ADJUSTING METHOD - A memory card includes a memory controller configured to perform control for sending and receiving a command signal, a response signal, a data signal, and a status signal in synchronization with a clock signal, and a memory-side pattern signal storage unit configured to store a tuning pattern signal to be sent to a host device. The tuning pattern signal is used by the host device to adjust the phase of the clock signal for use as a sampling clock signal. The memory card sends a first tuning pattern signal through a command line and a second tuning pattern signal through a data line concurrently. | 07-01-2010 |
| 20110022789 | MEMORY DEVICE, HOST DEVICE, MEMORY SYSTEM, MEMORY DEVICE CONTROL METHOD, HOST DEVICE CONTROL METHOD AND MEMORY SYSTEM CONTROL METHOD - A memory card | 01-27-2011 |
| 20110029726 | DATA UPDATING METHOD, MEMORY SYSTEM AND MEMORY DEVICE - A data updating method, a memory system and a memory device in which the memory device is connectable to a host device and has a memory section and a memory controller, the memory section consists of a first memory section which can be divided into partitions having multiple different attributes, and a work space which is managed by the memory controller, and the method of updating data which is stored in the memory device uses one of the writing methods which has been selected from among multiple different writing methods of writing data into the partition, depending on the attribute of the partition, to perform an updating process, and can securely update the data. | 02-03-2011 |
| Patent application number | Description | Published |
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| 20080235427 | Electronic device with card interface - When initializing a card-shaped device inserted in a card interface, operation mode acquiring means incorporated in an electronic device acquires operation mode information, stored in a register file incorporated in the card-shaped device, by a predetermined procedure using a predetermined pin. Operation mode setting means incorporated in the electronic device executes signal assignment on a plurality of data pins peculiar to an operation mode indicated by the acquired operation mode information, thereby switching a data transfer width, and allowing the card-shaped device to operate in the operation mode. | 09-25-2008 |
| 20100281200 | ELECTRONIC DEVICE WITH CARD INTERFACE - When initializing a card-shaped device inserted in a card interface, operation mode acquiring means incorporated in an electronic device acquires operation mode information, stored in a register file incorporated in the card-shaped device, by a predetermined procedure using a predetermined pin. Operation mode setting means incorporated in the electronic device executes signal assignment on a plurality of data pins peculiar to an operation mode indicated by the acquired operation mode information, thereby switching a data transfer width, and allowing the card-shaped device to operate in the operation mode. | 11-04-2010 |
| 20100322017 | CARD AND HOST DEVICE - A host device is configured to read and write information from and into a card and to supply a supply voltage that belongs to a first voltage range or a second voltage range which is lower than the first voltage range, and issues a voltage identification command to the card. The voltage identification command includes a voltage range identification section, an error detection section, and a check pattern section. The voltage range identification section includes information indicating which one of the first voltage range and the second voltage range the supply voltage belongs. The error detection section has a pattern configured to enable the card which has received the voltage identification command to detect errors in the voltage identification command. The check pattern section has a preset pattern. | 12-23-2010 |
| 20110114737 | CARD AND HOST DEVICE - A host device is configured to read and write information from and into a card and to supply a supply voltage that belongs to a first voltage range or a second voltage range which is lower than the first voltage range, and issues a voltage identification command to the card. The voltage identification command includes a voltage range identification section, an error detection section, and a check pattern section. The voltage range identification section includes information indicating which one of the first voltage range and the second voltage range the supply voltage belongs. The error detection section has a pattern configured to enable the card which has received the voltage identification command to detect errors in the voltage identification command. The check pattern section has a preset pattern. | 05-19-2011 |
