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GB2129586B - Improvements in or relating to memory systems - Google Patents
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GB2129586B - Improvements in or relating to memory systems - Google Patents

Improvements in or relating to memory systems

Info

Publication number
GB2129586B
GB2129586B GB08308151A GB8308151A GB2129586B GB 2129586 B GB2129586 B GB 2129586B GB 08308151 A GB08308151 A GB 08308151A GB 8308151 A GB8308151 A GB 8308151A GB 2129586 B GB2129586 B GB 2129586B
Authority
GB
United Kingdom
Prior art keywords
relating
memory systems
memory
systems
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.)
Expired
Application number
GB08308151A
Other versions
GB8308151D0 (en
GB2129586A (en
Inventor
Robert Andrew Mclaren
Charles Robert Christop Parker
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08308151A priority Critical patent/GB2129586B/en
Publication of GB8308151D0 publication Critical patent/GB8308151D0/en
Publication of GB2129586A publication Critical patent/GB2129586A/en
Application granted granted Critical
Publication of GB2129586B publication Critical patent/GB2129586B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/24—Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells
GB08308151A 1982-11-01 1983-03-24 Improvements in or relating to memory systems Expired GB2129586B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08308151A GB2129586B (en) 1982-11-01 1983-03-24 Improvements in or relating to memory systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8231110 1982-11-01
GB08308151A GB2129586B (en) 1982-11-01 1983-03-24 Improvements in or relating to memory systems

Publications (3)

Publication Number Publication Date
GB8308151D0 GB8308151D0 (en) 1983-05-05
GB2129586A GB2129586A (en) 1984-05-16
GB2129586B true GB2129586B (en) 1986-04-30

Family

ID=26284275

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08308151A Expired GB2129586B (en) 1982-11-01 1983-03-24 Improvements in or relating to memory systems

Country Status (1)

Country Link
GB (1) GB2129586B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163577B (en) * 1984-08-23 1988-01-13 Nat Res Dev Software protection device
GB2222899B (en) * 1988-08-31 1993-04-14 Anthony Morris Rose Securing a computer against undesired write operations or from a mass storage device
US4933898A (en) * 1989-01-12 1990-06-12 General Instrument Corporation Secure integrated circuit chip with conductive shield
JPH08115265A (en) * 1994-10-15 1996-05-07 Toshiba Corp Semiconductor memory device and manufacturing method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435418A (en) * 1965-05-27 1969-03-25 Ibm Record retrieval and record hold system
FR2238214B1 (en) * 1973-07-18 1977-05-13 Materiel Telephonique

Also Published As

Publication number Publication date
GB8308151D0 (en) 1983-05-05
GB2129586A (en) 1984-05-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee