Semiconductor storage device
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0 Petitions
Accused Products
Abstract
Card-type memories have a memory unit with an area having a minimum memory capacity and a control unit for interpreting a command issued by a host system and controlling the memory unit in accordance with the command. The memory area is formatted in accordance with the universal disk format so each sector of the area has a user data area of 2048 bytes with a logical sector length of 2048 bytes. File management is performed by a UDF file system of a host computer.
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Citations
45 Claims
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1-14. -14. (canceled)
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15. A semiconductor storage device usable by a host system having a particular operating system, a UDF file system, a memory interface controller, and a memory interface, the semiconductor storage device including:
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a memory unit having a memory area with at least a predetermined memory capacity and a control unit for interpreting a command issued by the host system and controlling the memory unit in accordance with the command, the semiconductor storage device storing property information indicating device type of the semiconductor storage device;
the control unit being arranged for (a) interpreting a property information read command issued by the host system, (b) executing the command, and (c) returning the property information to the host system; and
the memory area being formatted in accordance with the universal disk format (UDE) such that each sector has a user data area of 2048 bytes with a logical sector length of 2048 bytes. - View Dependent Claims (16, 17, 18, 19, 20, 21, 28, 30, 32, 34, 36, 38, 40)
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22. In combination,
a semiconductor storage device usable by a host system having a particular operating system, a UDF file system, a CD/DVD class driver, and a particular hardware interface, a card reader/writer carrying the semiconductor storage device, the card reader/writer including an optical disk command interpreter for interpreting an optical disc command issued by the CD/DVD class driver, a memory interface for performing data communication with a memory; - and
a memory interface controller for (a) controlling the memory interface and (b) issuing a command to the semiconductor storage device in response to a request from the optical disk command interpreter and in accordance with a memory interface protocol;
the semiconductor storage device including a memory unit having a memory area with at least a predetermined memory capacity and a control unit for (a) interpreting a command issued by the memory interface controller via the memory interface and (b) controlling the memory unit for executing the command, the semiconductor storage device storing property information indicating a device type of the semiconductor storage device;
the control unit being arranged to interpret a property read command issued by the host system via the card reader/writer, execute the command, and return the property information to the host system;
the memory area being formatted in accordance with the universal disk format (UDF), so each memory area sector has a user data area of 2048 bytes with a logical sector length of 2048 bytes. - View Dependent Claims (23, 24, 25, 26, 27, 29, 31, 33, 35, 37, 39)
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41. A semiconductor storage device comprising:
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a memory unit having a memory area with at least a predetermined memory capacity; and
a control unit for (a) interpreting a command issued by a host system and (b) controlling the memory unit in accordance with the command, the memory area being formatted in accordance with the universal disk format (UDF) such that each sector has a user data area of 2048 bytes with a logical sector length of 2048 bytes; and
the device being arranged so file management thereof can be performed by a UDF file system of the host system. - View Dependent Claims (42)
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43. A semiconductor storage device usable by a host system having a particular operating system, a UDF file system, a memory interface controller, and a memory interface, the semiconductor storage device including:
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a memory unit having a memory area with at least a predetermined memory capacity and a control unit for interpreting a command issued by the host system and controlling the memory unit in accordance with the command, the semiconductor storage device storing property information indicating device type of the semiconductor storage device;
the control unit being arranged for (a) interpreting a property information read command issued by the host system, (b) executing the command, and (c) returning the property information to the host system; and
the memory area being formatted in accordance with the universal disk format (UDE) such that each sector has a user data area.
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44. In combination,
a semiconductor storage device usable by a host system having a particular operating system, a UDF file system, a CD/DVD class driver, and a particular hardware interface, a card reader/writer carrying the semiconductor storage device, the card reader/writer including an optical disk command interpreter for interpreting an optical disk command issued by the CD/DVD class driver, a memory interface for performing data communication with a memory; - and
a memory interface controller for (a) controlling the memory interface and (b) issuing a command to the semiconductor storage device in response to a request from the optical disk command interpreter and in accordance with a memory interface protocol;
the semiconductor storage device including a memory unit having a memory area with at least a predetermined memory capacity and a control unit for (a) interpreting a command issued by the memory interface controller via the memory interface and (b) controlling the memory unit for executing the command, the semiconductor storage device storing property information indicating a device type of the semiconductor storage device;
the control unit being arranged to interpret a property read command issued by the host system via the card reader/writer, execute the command, and return the property information to the host system;
the memory area being formatted in accordance with the universal disk format (UDF), so each memory area sector has a user data area.
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45. A semiconductor storage device comprising:
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a memory unit having a memory area with at least a predetermined memory capacity; and
a control unit for (a) interpreting a command issued by a host system and (b) controlling the memory unit in accordance with the command, the memory area being formatted in accordance with the universal disk format (UDF) such that each sector has a user data area; and
the device being arranged so file management thereof can be performed by a UDF file system of the host system.
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Specification