EP1907937A4 - Synchronized high-assurance circuits - Google Patents

Synchronized high-assurance circuits

Info

Publication number
EP1907937A4
EP1907937A4 EP06786509A EP06786509A EP1907937A4 EP 1907937 A4 EP1907937 A4 EP 1907937A4 EP 06786509 A EP06786509 A EP 06786509A EP 06786509 A EP06786509 A EP 06786509A EP 1907937 A4 EP1907937 A4 EP 1907937A4
Authority
EP
European Patent Office
Prior art keywords
synchronized high
assurance
circuits
assurance circuits
synchronized
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.)
Ceased
Application number
EP06786509A
Other languages
German (de)
French (fr)
Other versions
EP1907937A2 (en
Inventor
Albert J Bourdon
Gary G Christensen
Michael G Godfrey
Sean K O'keeffe
John R Owens
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.)
Viasat Inc
Original Assignee
Viasat Inc
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
Priority claimed from US11/428,508 external-priority patent/US8527741B2/en
Priority claimed from US11/428,516 external-priority patent/US7802075B2/en
Application filed by Viasat Inc filed Critical Viasat Inc
Priority to EP19199060.5A priority Critical patent/EP3651027A1/en
Publication of EP1907937A2 publication Critical patent/EP1907937A2/en
Publication of EP1907937A4 publication Critical patent/EP1907937A4/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/52—Program synchronisation; Mutual exclusion, e.g. by means of semaphores
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1629—Error detection by comparing the output of redundant processing systems
    • G06F11/1641—Error detection by comparing the output of redundant processing systems where the comparison is not performed by the redundant processing components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1629—Error detection by comparing the output of redundant processing systems
    • G06F11/1641—Error detection by comparing the output of redundant processing systems where the comparison is not performed by the redundant processing components
    • G06F11/1645—Error detection by comparing the output of redundant processing systems where the comparison is not performed by the redundant processing components and the comparison itself uses redundant hardware
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1675—Temporal synchronisation or re-synchronisation of redundant processing components
    • G06F11/1683—Temporal synchronisation or re-synchronisation of redundant processing components at instruction level
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/52—Program synchronisation; Mutual exclusion, e.g. by means of semaphores
    • G06F9/522—Barrier synchronisation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Quality & Reliability (AREA)
  • Hardware Redundancy (AREA)
EP06786509A 2005-07-05 2006-07-05 Synchronized high-assurance circuits Ceased EP1907937A4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19199060.5A EP3651027A1 (en) 2005-07-05 2006-07-05 Synchronized high-assurance circuits

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US69707205P 2005-07-05 2005-07-05
US69707105P 2005-07-05 2005-07-05
US11/428,508 US8527741B2 (en) 2005-07-05 2006-07-03 System for selectively synchronizing high-assurance software tasks on multiple processors at a software routine level
US11/428,516 US7802075B2 (en) 2005-07-05 2006-07-03 Synchronized high-assurance circuits
PCT/US2006/026376 WO2007006013A2 (en) 2005-07-05 2006-07-05 Synchronized high-assurance circuits

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP19199060.5A Division EP3651027A1 (en) 2005-07-05 2006-07-05 Synchronized high-assurance circuits

Publications (2)

Publication Number Publication Date
EP1907937A2 EP1907937A2 (en) 2008-04-09
EP1907937A4 true EP1907937A4 (en) 2010-01-13

Family

ID=37605229

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06786509A Ceased EP1907937A4 (en) 2005-07-05 2006-07-05 Synchronized high-assurance circuits
EP19199060.5A Withdrawn EP3651027A1 (en) 2005-07-05 2006-07-05 Synchronized high-assurance circuits

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19199060.5A Withdrawn EP3651027A1 (en) 2005-07-05 2006-07-05 Synchronized high-assurance circuits

Country Status (4)

Country Link
EP (2) EP1907937A4 (en)
CA (1) CA2614330A1 (en)
IL (1) IL188414A (en)
WO (1) WO2007006013A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8190877B2 (en) 2005-07-05 2012-05-29 Viasat, Inc. Trusted cryptographic processor
US8527741B2 (en) 2005-07-05 2013-09-03 Viasat, Inc. System for selectively synchronizing high-assurance software tasks on multiple processors at a software routine level
JP6360387B2 (en) * 2014-08-19 2018-07-18 ルネサスエレクトロニクス株式会社 Processor system, engine control system, and control method
US10241958B2 (en) 2014-08-29 2019-03-26 Microsoft Technology Licensing, Llc Configurable synchronized processing of multiple operations
US10599513B2 (en) 2017-11-21 2020-03-24 The Boeing Company Message synchronization system
US10528077B2 (en) * 2017-11-21 2020-01-07 The Boeing Company Instruction processing alignment system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0674262A1 (en) * 1994-03-25 1995-09-27 International Business Machines Corporation Fault tolerant system
US5845060A (en) * 1993-03-02 1998-12-01 Tandem Computers, Incorporated High-performance fault tolerant computer system with clock length synchronization of loosely coupled processors
US6363464B1 (en) * 1999-10-08 2002-03-26 Lucent Technologies Inc. Redundant processor controlled system
GB2399426A (en) * 2003-03-12 2004-09-15 Sharp Kk Fault detection in data processing apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU616213B2 (en) * 1987-11-09 1991-10-24 Tandem Computers Incorporated Method and apparatus for synchronizing a plurality of processors
GB0012352D0 (en) 2000-05-22 2000-07-12 Northern Telecom Ltd Reliable hardware support for the use of formal languages in high assurance systems
CA2473956A1 (en) 2002-01-23 2003-07-31 Intellitech Corporation Management system, method and apparatus for licensed delivery and accounting of electronic circuits
JP2004046599A (en) * 2002-07-12 2004-02-12 Nec Corp Fault tolerant computer system, its resynchronization method, and resynchronization program
JP2005167526A (en) 2003-12-02 2005-06-23 Hitachi Ltd Method for burying and detecting electronic watermark information based on a plurality of pieces of control information, and control unit thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5845060A (en) * 1993-03-02 1998-12-01 Tandem Computers, Incorporated High-performance fault tolerant computer system with clock length synchronization of loosely coupled processors
EP0674262A1 (en) * 1994-03-25 1995-09-27 International Business Machines Corporation Fault tolerant system
US6363464B1 (en) * 1999-10-08 2002-03-26 Lucent Technologies Inc. Redundant processor controlled system
GB2399426A (en) * 2003-03-12 2004-09-15 Sharp Kk Fault detection in data processing apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007006013A2 *

Also Published As

Publication number Publication date
WO2007006013A2 (en) 2007-01-11
EP1907937A2 (en) 2008-04-09
IL188414A (en) 2013-04-30
WO2007006013A3 (en) 2009-04-16
EP3651027A1 (en) 2020-05-13
CA2614330A1 (en) 2007-01-11
IL188414A0 (en) 2008-11-03

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