EP0907128A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Storage devices, and data processing systems and methods
Assignee: Sony Corp
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Filing: 1998-09-29
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Granted: —
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Expires: 2018-09-29
Abstract
Abstract A storage device (20) outputs data in such a manner that whether or not error correction has been made can be discriminated. The storage device (20) furnishes data to a data processing device (10) in such a manner that whether or not area management information has been corrected for errors can be discriminated. The data processing device (10) discriminates whether or not the area management information has been corrected for errors in order to perform predetermined data processing. If there is any error correctable by an error correction processing unit (26) in the area management information read out from a flash memory (21), a controller (27) furnishes the area management information to the error correction processing unit (26) and appends a flag indicating the fact of error correction to the area management information corrected for errors to output the resulting data.
Inventors
- 👤 Akira C/O Intellectual Property Department Sassa
- 👤 Takumi C/O Intellectual Property Dep. Okaue
- 👤 Mitsuhiro Intellectual Property Dep. Hirabayashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 12:52
CPC Classifications
G; G06; G06F; G06F12/00; G11; G11C; G11C29/00; G11C29/70; G11C29/76; G11C29/765; G06F11/00; G06F11/07; G06F11/08; G06F11/10; G06F11/1008; G06F11/1068; G11C29/88; G06F11/0703; G06F11/0751; G06F11/0763
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
126 words
A storage device comprising: storage means for storing data and the area management information for
supervising the state of an area in which the data is stored; error correcting processing means for correcting the area management
information for predetermined errors if such errors are present in the area management
information read out from said storage means; and data processing means for reading the area management information from said
storage means, supplying the area management information to said error correcting
processing means if errors that can be corrected by said error correcting processing
means are present in said area management information, said data processing means
appending a flag specifying the fact of error correction to the area management
information corrected for errors, and outputting the resulting information.
Claim 2
Dependent Claim
134 words
A data processing system comprising: a storage device for storing data and the area management information for
supervising the status of an area for storing the data, said storage device correcting the
area management information for errors if the stored area management information has
correctable errors, said storage device appending a flag indicating the fact of error
correction to the area management information corrected for errors; and a data processing device fed with the data and the area management information
outputted by said storage device, said data processing device recognizing, if the flag
indicating the fact of error correction to the area management information corrected
for errors is appended to the input area management information, that the input area
management information is the information corrected for errors, in order to perform
predetermined data processing.
Claim 3
Dependent Claim
68 words
A data processing method comprising: reading out data stored in storage means and the area management information
for supervising the state of an area in which the data is stored; and correcting the area management information read out from the storage means
for errors if said area management information has correctable errors, and outputting
the corrected information with a flag indicating the fact of error correction appended
thereto.
Claim 4
Dependent Claim
150 words
A data processing method for reading out data stored in storage means, and the area
management information used for supervising the state of an area of storage of the
data, from said storage device, and processing the data and the area management
information by a data processing device, wherein said storage device corrects the area management information read out from the
storage means for errors if said area management information has correctable errors,
said storage device outputting the corrected information having an appended flag
indicating the fact of error correction to said data processing device, and wherein said data processing device recognizes, if the flag indicating the fact of error
correction to the area management information corrected for errors is appended to the
area management information sent from the storage device, that the input area
management information is the information corrected for errors, in order to perform
predetermined data processing.
Claim 5
Dependent Claim
37 words
The storage device according to claim 1 wherein said area management information
is constituted by 2n bits (n≥2) and wherein, if not less than (n+1) same bits are
present, said error correction processing means performs error correction.
Claim 6
Dependent Claim
37 words
The storage device according to claim 1 wherein said area management information
is constituted by 2n+1 bits (n≥0) and wherein, if not less than (n+1) same bits are
present, said error correction processing means performs error correction.
Claim 7
Dependent Claim
15 words
The storage device according to claim 1 wherein said storage means is a flash
memory.
Claim 8
Dependent Claim
36 words
The data processing system according to claim 2 wherein said area management
information is constituted by 2n bits (n≥2) and wherein, if not less than (n+1) same
bits are present, said storage device performs error correction.
Claim 9
Dependent Claim
36 words
The data processing system according to claim 2 wherein said area management
information is constituted by 2n+1 bits (n≥0) and wherein, if not less than (n+1) same
bits are present, said storage device performs error correction.
Claim 10
Dependent Claim
34 words
The data processing method according to claim 3 wherein said area management
information is constituted by 2n bits (n≥2) and wherein, if not less than (n+1) same
bits are present, error correction is performed.
Claim 11
Dependent Claim
34 words
The data processing method according to claim 3 wherein said area management
information is constituted by 2n+1 bits (n≥) and wherein, if not less than (n+1) same
bits are present, error correction is performed.
Claim 12
Dependent Claim
36 words
The data processing method according to claim 4 wherein said area
management information is constituted by 2n bits (n≥2) and wherein, if not less than
(n+1) same bits are present, said storage device performs error correction.
Claim 13
Dependent Claim
36 words
The data processing method according to claim 4 wherein said area management
information is constituted by 2n+1 bits (n≥0) and wherein, if not less than (n+1) same
bits are present, said storage device performs error correction.
References Cited (Backward Citations)
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