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Triple modular redundant computer system    
United States Patent6240526   
Link to this pagehttp://www.wikipatents.com/6240526.html
Inventor(s)Petivan; James L. (Palo Alto, CA); Lundell; Jonathan K. (Half Moon Bay, CA); Lundell; Don C. (Boulder Creek, CA)
AbstractA fault tolerant computer system is provided which includes a first system module with a first processor and a first processor bus and a first I/O bus; a second system module with a second processor and a second processor bus and a second I/O bus; a third system module with a third processor and a third processor bus and a third I/O bus; wherein the first system module further includes a first control device which coordinates transfer of first transaction information between the first processor bus and each of the first I/O bus or the second I/O bus or the third I/O bus; and wherein the first system module includes first comparison logic which compares first transaction information with corresponding second transaction information; wherein the second system module further includes a second control device which coordinates transfer of second transaction information between the second processor bus and each of the first I/O bus or the second I/O bus or the third I/O bus; and wherein the second system module includes second comparison logic which compares second transaction information with corresponding third transaction information; wherein the third system module further includes a third control device which coordinates transfer of third transaction information between the third processor bus and each of the first I/O bus or the second I/O bus or the third I/O bus; and wherein the third system module includes third comparison logic which compares third transaction information with corresponding first transaction information; and transfer circuitry which transfers the first, second and third transaction information among the first, second and third system modules.



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Drawing from US Patent 6240526
Triple modular redundant computer system - US Patent 6240526 Drawing
Triple modular redundant computer system
Inventor     Petivan; James L. (Palo Alto, CA); Lundell; Jonathan K. (Half Moon Bay, CA); Lundell; Don C. (Boulder Creek, CA)
Owner/Assignee     Resilience Corporation (Palo Alto, CA)
Patent assignment
All assignments
Publication Date     May 29, 2001
Application Number     09/428,869
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     October 27, 1999
US Classification     714/11 716/4
Int'l Classification     G06F 011/00
Examiner     Iqbal; Nadeem
Assistant Examiner    
Attorney/Law Firm     Morrison & Foerster LLP
Address
Parent Case     RELATED APPLICATIONS This application is a divisional of U.S. patent application Ser. No. 08/853,670, filed May 9, 1997 and claims priority to that application. This application is a continuation-in-part of a provisional U.S application filed as Ser. No. 60/017,201 on May 16, 1996 and a provisional U.S application filed as Ser. No. 60/037,363 on Feb. 3, 1997.
Priority Data    
USPTO Field of Search     714/11 714/12 714/13 714/25 714/37 714/39 714/44 714/47 714/8 714/9 714/10 395/500.05 395/500.07
Patent Tags     triple modular redundant computer
   
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Market Size
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$5B - $10B
$2B - $5B
$500M - $2B
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Market Share
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