JPS6481028A - Data memory system - Google Patents

Data memory system

Info

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
Application number
JP62238268A
Other languages
Japanese (ja)
Inventor
Maki Seki
Takashi Takegahara
Shuji Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fanuc Corp
Original Assignee
Fanuc Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fanuc Corp filed Critical Fanuc Corp
Priority to JP62238268A priority Critical patent/JPS6481028A/en
Publication of JPS6481028A publication Critical patent/JPS6481028A/en
Pending legal-status Critical Current

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.
JP62238268A 1987-09-22 1987-09-22 Data memory system Pending JPS6481028A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (15)

* Cited by examiner, † Cited by third party
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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