Memory apparatus
First Claim
Patent Images
1. A memory apparatus comprising:
- a volatile memory for storing data from a host;
a nonvolatile memory capable of storing the data stored in the volatile memory, and electrically deleting the data; and
a control circuit for controlling data transfer between the volatile memory and the nonvolatile memory, wherein a capacity of a data storage area of the volatile memory is larger than that of a data storage area of the nonvolatile memory.
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Abstract
A memory apparatus having a volatile memory for storing data from a host, a nonvolatile memory capable of storing the data stored in the volatile memory, and electrically deleting the data, and a control circuit for controlling data transfer between the volatile memory and the nonvolatile memory. A capacity of a data storage area of the volatile memory is larger than that of a data storage area of the nonvolatile memory.
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Citations
16 Claims
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1. A memory apparatus comprising:
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a volatile memory for storing data from a host;
a nonvolatile memory capable of storing the data stored in the volatile memory, and electrically deleting the data; and
a control circuit for controlling data transfer between the volatile memory and the nonvolatile memory, wherein a capacity of a data storage area of the volatile memory is larger than that of a data storage area of the nonvolatile memory. - View Dependent Claims (2, 3, 4, 5, 11)
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6. A memory apparatus comprising:
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a volatile memory;
a nonvolatile memory; and
a control circuit for controlling data transfer between the volatile memory and the nonvolatile memory, wherein the control circuit receives a command from a host, interprets the command, and starts the data transfer according to the interpreted command.
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7. A memory apparatus comprising:
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a volatile memory;
a nonvolatile memory; and
a control circuit for controlling data transfer between the volatile memory and the nonvolatile memory, wherein the control circuit starts the data transfer according to an access command to a predetermined address on the volatile memory from a host.
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8. A memory apparatus comprising:
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a volatile memory;
a nonvolatile memory;
a control circuit for controlling data reading/writing in the volatile memory and the nonvolatile memory;
a first interface positioned between the host and the control circuit to input/output data read/written in the volatile memory; and
a second interface positioned between the host and the control circuit to input/output data read/written in the nonvolatile memory. - View Dependent Claims (9)
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10. A memory apparatus comprising:
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a volatile memory;
a nonvolatile memory;
a control circuit for controlling data reading/writing in the volatile memory and the nonvolatile memory; and
an interface positioned between a host and the control circuit to input/output data read/written in the volatile memory, wherein the interface inputs/outputs data read/written in the nonvolatile memory.
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12. A memory apparatus comprising:
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a volatile memory;
a flash memory;
a control circuit for controlling data transfer between the volatile memory and the flash memory; and
a holding circuit for holding data transferred between a DRAM and the flash memory.
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13. A memory apparatus comprising:
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a recording unit including a failed area, capable of accessing information by a predetermined unit;
a recording unit control circuit for controlling the recording unit;
a buffer memory for temporarily recording data transmitted/received with the recording unit;
a volatile memory for saving information for managing the failed area in the recording unit;
a failure management circuit for processing information of the volatile memory;
an interface control circuit having means for processing accessing from a host and issuing operation instructions to the recording unit control circuit and the failure management circuit;
means for dividing the recording unit into a plurality of areas, and individually managing the areas;
means for securing and managing an alternative area for replacing a failed area included in the area by each divided unit, and an area likely to fail; and
means for changing an access destination to access the alternative area instead when the host accesses the failed area. - View Dependent Claims (14, 15, 16)
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Specification