JPS6481028A - Data memory system - Google Patents
Data memory systemInfo
- Publication number
- JPS6481028A JPS6481028A JP62238268A JP23826887A JPS6481028A JP S6481028 A JPS6481028 A JP S6481028A JP 62238268 A JP62238268 A JP 62238268A JP 23826887 A JP23826887 A JP 23826887A JP S6481028 A JPS6481028 A JP S6481028A
- Authority
- JP
- Japan
- Prior art keywords
- record
- area
- written
- memory
- erbm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To improve the availability of a memory medium by dividing a memory area for each record of the fixed length and at the same time to store an error bit map showing the defective record areas into a prescribed record area of the memory area. CONSTITUTION:A memory area MRY of a memory card 11e is divided for each record of the fixed length and at the same time an error bit map ERBM showing the defective record areas in '1' or '0' is stored in a record area RC2. The data received from a CAD/CAM data producing device 12 are written into the record area and collated with each other for each writing. If no coincidence is obtained from said collation, the relevant record area is decided as defective. Then a map ERBM' read out to a RAM 11c is replaced. Then said data are written into the next record to undergo the similar processing. The map ERBM' is written into the prescribed area RC2 of the card 11e for collation after all data are written.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62238268A JPS6481028A (en) | 1987-09-22 | 1987-09-22 | Data memory system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62238268A JPS6481028A (en) | 1987-09-22 | 1987-09-22 | Data memory system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6481028A true JPS6481028A (en) | 1989-03-27 |
Family
ID=17027655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62238268A Pending JPS6481028A (en) | 1987-09-22 | 1987-09-22 | Data memory system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6481028A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04307647A (en) * | 1991-04-04 | 1992-10-29 | Fuji Photo Film Co Ltd | Memory card storage control system |
EP0612071A2 (en) * | 1993-02-19 | 1994-08-24 | Canon Kabushiki Kaisha | Information reproducing method |
WO1999031592A1 (en) * | 1997-12-16 | 1999-06-24 | Tdk Corporation | Flash memory system |
WO1999032977A1 (en) * | 1997-12-22 | 1999-07-01 | Tdk Corporation | Flash memory system |
JP2007328824A (en) * | 2007-09-14 | 2007-12-20 | Toshiba Corp | Memory card, nonvolatile memory, data writing method of nonvolatile memory and data writing device |
JP2009026301A (en) * | 2007-07-19 | 2009-02-05 | Samsung Electronics Co Ltd | Solid state disk controller and data processing method thereof |
JP2009211230A (en) * | 2008-03-01 | 2009-09-17 | Toshiba Corp | Memory system |
US8276043B2 (en) | 2008-03-01 | 2012-09-25 | Kabushiki Kaisha Toshiba | Memory system |
JP2015176177A (en) * | 2014-03-13 | 2015-10-05 | 日立オートモティブシステムズ株式会社 | Vehicle electronic control device |
-
1987
- 1987-09-22 JP JP62238268A patent/JPS6481028A/en active Pending
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04307647A (en) * | 1991-04-04 | 1992-10-29 | Fuji Photo Film Co Ltd | Memory card storage control system |
EP0612071A2 (en) * | 1993-02-19 | 1994-08-24 | Canon Kabushiki Kaisha | Information reproducing method |
EP0612071A3 (en) * | 1993-02-19 | 1995-04-05 | Canon Kk | Information reproducing method. |
US6581132B1 (en) | 1997-12-16 | 2003-06-17 | Tdk Corporation | Flash memory system including a memory manager for managing data |
WO1999031592A1 (en) * | 1997-12-16 | 1999-06-24 | Tdk Corporation | Flash memory system |
US6591329B1 (en) | 1997-12-22 | 2003-07-08 | Tdk Corporation | Flash memory system for restoring an internal memory after a reset event |
WO1999032977A1 (en) * | 1997-12-22 | 1999-07-01 | Tdk Corporation | Flash memory system |
JP2009026301A (en) * | 2007-07-19 | 2009-02-05 | Samsung Electronics Co Ltd | Solid state disk controller and data processing method thereof |
US8738842B2 (en) | 2007-07-19 | 2014-05-27 | Samsung Electronics Co., Ltd. | Solid state disk controller and data processing method thereof |
JP2007328824A (en) * | 2007-09-14 | 2007-12-20 | Toshiba Corp | Memory card, nonvolatile memory, data writing method of nonvolatile memory and data writing device |
JP2009211230A (en) * | 2008-03-01 | 2009-09-17 | Toshiba Corp | Memory system |
US8276043B2 (en) | 2008-03-01 | 2012-09-25 | Kabushiki Kaisha Toshiba | Memory system |
US8751901B2 (en) | 2008-03-01 | 2014-06-10 | Kabushiki Kaisha Toshiba | Nonvolatile semiconductor memory system configured to control data transfer |
US9176816B2 (en) | 2008-03-01 | 2015-11-03 | Kabushiki Kaisha Toshiba | Memory system configured to control data transfer |
JP2015176177A (en) * | 2014-03-13 | 2015-10-05 | 日立オートモティブシステムズ株式会社 | Vehicle electronic control device |
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