GB2346465A - Improved data switch - Google Patents

Improved data switch

Info

Publication number
GB2346465A
GB2346465A GB0007520A GB0007520A GB2346465A GB 2346465 A GB2346465 A GB 2346465A GB 0007520 A GB0007520 A GB 0007520A GB 0007520 A GB0007520 A GB 0007520A GB 2346465 A GB2346465 A GB 2346465A
Authority
GB
United Kingdom
Prior art keywords
data switch
data
improved data
switch
improved
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
GB0007520A
Other versions
GB2346465B (en
GB0007520D0 (en
Inventor
Research Pty Limited Compucat
Robert Scott
Peter Penfold
Anthony Ashcroft
Colin Law
Original Assignee
Compucat Research Pty 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
Application filed by Compucat Research Pty Ltd filed Critical Compucat Research Pty Ltd
Publication of GB0007520D0 publication Critical patent/GB0007520D0/en
Publication of GB2346465A publication Critical patent/GB2346465A/en
Application granted granted Critical
Publication of GB2346465B publication Critical patent/GB2346465B/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
    • 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
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/83—Protecting input, output or interconnection devices input devices, e.g. keyboards, mice or controllers thereof
    • 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
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/84—Protecting input, output or interconnection devices output devices, e.g. displays or monitors

Abstract

An improved data switch in which no data can be retained on the upstream side of the data switch during switching of the data switch between data processing systems having differing security classifications. This is achieved via the repositioning and replication of the processor/buffer of the input device on the downstream side of the data switch.
GB0007520A 1997-10-02 1998-10-01 Improved data switch Expired - Fee Related GB2346465B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPO9598A AUPO959897A0 (en) 1997-10-02 1997-10-02 Data switch
PCT/AU1998/000829 WO1999018493A1 (en) 1997-10-02 1998-10-01 Improved data switch

Publications (3)

Publication Number Publication Date
GB0007520D0 GB0007520D0 (en) 2000-05-17
GB2346465A true GB2346465A (en) 2000-08-09
GB2346465B GB2346465B (en) 2002-10-09

Family

ID=3803878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0007520A Expired - Fee Related GB2346465B (en) 1997-10-02 1998-10-01 Improved data switch

Country Status (3)

Country Link
AU (1) AUPO959897A0 (en)
GB (1) GB2346465B (en)
WO (1) WO1999018493A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2421610A (en) * 2004-12-23 2006-06-28 Infineon Technologies Ag Data processing device with a second processor for security-related data
US9501157B2 (en) 2009-11-10 2016-11-22 High Sec Labs Ltd. Secure KVM system having multiple emulated EDID functions

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9426652B2 (en) 2010-09-09 2016-08-23 Joseph Nutaro High assurance authorization device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641262A (en) * 1983-03-07 1987-02-03 International Business Machines Corporation Personal computer attachment for host system display station
US5291596A (en) * 1990-10-10 1994-03-01 Fuji Xerox Co., Ltd. Data management method and system with management table indicating right of use
WO1996030840A1 (en) * 1995-03-31 1996-10-03 The Commonwealth Of Australia Method and means for interconnecting different security level networks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641262A (en) * 1983-03-07 1987-02-03 International Business Machines Corporation Personal computer attachment for host system display station
US5291596A (en) * 1990-10-10 1994-03-01 Fuji Xerox Co., Ltd. Data management method and system with management table indicating right of use
WO1996030840A1 (en) * 1995-03-31 1996-10-03 The Commonwealth Of Australia Method and means for interconnecting different security level networks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2421610A (en) * 2004-12-23 2006-06-28 Infineon Technologies Ag Data processing device with a second processor for security-related data
US9501157B2 (en) 2009-11-10 2016-11-22 High Sec Labs Ltd. Secure KVM system having multiple emulated EDID functions

Also Published As

Publication number Publication date
AUPO959897A0 (en) 1997-10-30
GB2346465B (en) 2002-10-09
GB0007520D0 (en) 2000-05-17
WO1999018493A1 (en) 1999-04-15

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20110721 AND 20110727

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20151001