0548564-A2 is referenced by 32 patents and cites 4 patents.

In a semiconductor disk wherein a flash memory into which data is rewritten in block unit is employed as a storage medium; a semiconductor disk comprising a data memory in which file data are stored, a substitutive memory which substitutes for blocks of errors in the data memory, an error memory in which error information of the data memory are stored, and a memory controller which reads data out of, writes data into and erases data from the data memory, the substitutive memory and the error memory. Since the write errors of the flash memory can be remedied, the service life of the semiconductor disk can be prolonged.

Title
Storage device employing a flash memory.
Application Number
EP19920119968 19921124
Publication Number
0548564 (A2)
Application Date
November 24, 1992
Publication Date
June 30, 1993
Inventor
Furuno Takeshi
JP
Kaki Kenichi
JP
Katayama Kunihiro
JP
Tsunehiro Takashi
JP
Hayashi Yoshihiro
JP
Terada Kouichi
JP
Yamagami Hajime
JP
Assignee
Hitachi
JP
IPC
G06F 11/20
G11C 29/00
G11C 16/06
G06F 03/06
G11C 29/00
G11C 16/10
G06F 03/06
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