CA2082916A1 - Personal computer system with security features and method - Google Patents

Personal computer system with security features and method

Info

Publication number
CA2082916A1
CA2082916A1 CA2082916A CA2082916A CA2082916A1 CA 2082916 A1 CA2082916 A1 CA 2082916A1 CA 2082916 A CA2082916 A CA 2082916A CA 2082916 A CA2082916 A CA 2082916A CA 2082916 A1 CA2082916 A1 CA 2082916A1
Authority
CA
Canada
Prior art keywords
memory element
erasable memory
active
personal computer
operatively connected
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.)
Granted
Application number
CA2082916A
Other languages
French (fr)
Other versions
CA2082916C (en
Inventor
John Wiley Blackledge Jr.
Grant Leach Clarke Jr.
Richard Alan Dayan
Kimthanh Do Le
Patrick Edward Mccourt
Matthew Todd Mittelstedt
Dennis Lee Moeller
Palmer Eugene Newman
Dave Lee Randall
Joanna Berger Yoder
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.)
Lenovo Singapore Pte Ltd
Original Assignee
John Wiley Blackledge Jr.
Grant Leach Clarke Jr.
Richard Alan Dayan
Kimthanh Do Le
Patrick Edward Mccourt
Matthew Todd Mittelstedt
Dennis Lee Moeller
Palmer Eugene Newman
Dave Lee Randall
Joanna Berger Yoder
International Business Machines Corporation
Lenovo (Singapore) Pte. Ltd.
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25283688&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2082916(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by John Wiley Blackledge Jr., Grant Leach Clarke Jr., Richard Alan Dayan, Kimthanh Do Le, Patrick Edward Mccourt, Matthew Todd Mittelstedt, Dennis Lee Moeller, Palmer Eugene Newman, Dave Lee Randall, Joanna Berger Yoder, International Business Machines Corporation, Lenovo (Singapore) Pte. Ltd. filed Critical John Wiley Blackledge Jr.
Publication of CA2082916A1 publication Critical patent/CA2082916A1/en
Application granted granted Critical
Publication of CA2082916C publication Critical patent/CA2082916C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/86—Secure or tamper-resistant housings
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/009—Trust
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2143—Clearing memory, e.g. to prevent the data from being stolen

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Storage Device Security (AREA)

Abstract

This invention relates to personal computer systems and, more particularly, to such a system having security features enabling control over access to data retained in such a system. In particular, a personal computer system in accordance with this invention has a normally closed enclosure, an erasable memory element for selective activation to active and inactive states and for receiving and storing a privileged access password when in the active state, an option switch operatively connected with the erasable memory element for setting the erasable memory element to the active and inactive states, a tamper detection switch operatively connected with the erasable memory element for detecting opening of the enclosure and for clearing any stored privileged access password from the erasable memory element in response to any switching of the tamper switch, and a system processor operatively connected with the erasable memory element for controlling access to at least certain levels of data stored within the system by distinguishing between the active and inactive states of the memory element and between entry and non-entry of any stored privileged access password.
CA002082916A 1992-02-26 1992-11-13 Personal computer system with security features and method Expired - Fee Related CA2082916C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/840,965 US5388156A (en) 1992-02-26 1992-02-26 Personal computer system with security features and method
US07/840,965 1992-02-26

Publications (2)

Publication Number Publication Date
CA2082916A1 true CA2082916A1 (en) 1993-08-27
CA2082916C CA2082916C (en) 1996-04-16

Family

ID=25283688

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002082916A Expired - Fee Related CA2082916C (en) 1992-02-26 1992-11-13 Personal computer system with security features and method

Country Status (14)

Country Link
US (1) US5388156A (en)
EP (1) EP0558222B1 (en)
JP (1) JP2565629B2 (en)
KR (1) KR960003058B1 (en)
CN (2) CN1044160C (en)
AU (1) AU663551B2 (en)
BR (1) BR9300396A (en)
CA (1) CA2082916C (en)
DE (1) DE69326089T2 (en)
HK (1) HK1018826A1 (en)
MY (1) MY109086A (en)
NZ (1) NZ245756A (en)
SG (1) SG43708A1 (en)
TW (1) TW239197B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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US5559993A (en) * 1993-03-11 1996-09-24 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Hardware circuit for securing a computer against undesired write and/or read operations

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Also Published As

Publication number Publication date
KR960003058B1 (en) 1996-03-04
JPH06243047A (en) 1994-09-02
AU663551B2 (en) 1995-10-12
SG43708A1 (en) 1997-11-14
KR930018349A (en) 1993-09-21
US5388156A (en) 1995-02-07
CA2082916C (en) 1996-04-16
AU3201993A (en) 1993-09-02
NZ245756A (en) 1995-12-21
EP0558222B1 (en) 1999-08-25
EP0558222A1 (en) 1993-09-01
TW239197B (en) 1995-01-21
MY109086A (en) 1996-11-30
CN1223408A (en) 1999-07-21
DE69326089T2 (en) 2000-03-30
HK1018826A1 (en) 2000-01-07
BR9300396A (en) 1993-08-31
CN1044160C (en) 1999-07-14
CN1076534A (en) 1993-09-22
DE69326089D1 (en) 1999-09-30
CN1120431C (en) 2003-09-03
JP2565629B2 (en) 1996-12-18

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