U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Vertical fault isolation in a computer system

Patent 6654903 Issued on November 25, 2003. Estimated Expiration Date: Icon_subject May 20, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Communication system having automatic circuit board initialization capability
Patent #: 4750136
Issued on: 06/07/1988
Inventor: Arpin ,   et al.

Method an apparatus for specification of communication parameters
Patent #: 4942540
Issued on: 07/17/1990
Inventor: Black, et al.

Apparatus and method of token ring beacon station removal for a communication network
Patent #: 5283783
Issued on: 02/01/1994
Inventor: Nguyen, et al.

Fault isolation circuit
Patent #: 5473752
Issued on: 12/05/1995
Inventor: Beistle, et al.

Apparatus and method for clock alignment and switching
Patent #: 5515403
Issued on: 05/07/1996
Inventor: Sloan, et al.

Method and system for aligning the phase of high speed clocks in telecommunications systems
Patent #: 5638410
Issued on: 06/10/1997
Inventor: Kuddes

Phase locked loop using a counter and a microcontroller to produce VCXO control signals
Patent #: 5726607
Issued on: 03/10/1998
Inventor: Brede, et al.

Generic fault management of a computer system
Patent #: 5740357
Issued on: 04/14/1998
Inventor: Gardiner, et al.

Apparatus and method for fault-tolerant computing
Patent #: 5748882
Issued on: 05/05/1998
Inventor: Huang

Hierarchical packet scheduling method and apparatus
Patent #: 5850399
Issued on: 12/15/1998
Inventor: Ganmukhi, et al.

More ...

Inventors

Assignee

Application

No. 09/574440 filed on 05/20/2000

US Classes:

714/4, Of network714/43Bus, I/O channel, or network path component fault

Examiners

Primary: Beausoliel, Robert
Assistant: McCarthy, Christopher

Attorney, Agent or Firm

International Classes

H04L 7/00 (20060101)
H04L 12/24 (20060101)
H04L 29/06 (20060101)
H04L 12/56 (20060101)

Abstract

The invention provides a method for fault isolation in a computer system, such as a network device. The method calls for providing a plurality of modular processes, and forming groups, based on hardware in the computer system, of one or more of the plurality of modular processes. A fault within a group is detected, and recovery from the detected fault is accomplished without affecting processes or hardware in other groups.

Other References

  • "Start Here: Basics and Installation of Microsoft Windows NT Workstation," product literature (1998)
  • "Real-time Embedded Database Fault Tolerance on Two Single-board Computers," Polyhedra, Inc. product literature
  • Syndesis Limited product literature, 1999
  • "Using Polyhedra for a Wireless Roaming Call Management System," Polyhedra, Inc., (prior to May 20, 2000)
  • Veritas Software Corporation webpage, 2000
  • "The Abatis Network Services Contractor," Abatis Systems Corporation product literature, 1999
  • AtiMe-3E Data Sheet, 1-17 (Mar. 8, 2000)
  • Black, D., "Building Switched Networks," pp. 85-267
  • Black, D., "Managing Switched Local Area Networks A Practical Guide" pp. 324-329
  • "Configuration," Cisco Systems Inc. webpage, pp. 1-32 (Sep. 20, 1999)
  • Leroux, P., "The New Business Imperative: Achieving Shorter Development Cycles while Improving Product Quality," QNX Software Systems Ltd. webpage, (1999)
  • NavisXtend Accounting Server, Ascend Communications, Inc. product information (1997)
  • NavisXtend Fault Server, Ascend Communications, Inc. product information (1997)
  • NavisXtend Provisioning Server, Ascend Communications, Inc. product information (1997)
  • Network Health LAN/WAN Report Guide, pp. 1-23
  • "Optimizing Routing Software for Reliable Internet Growth," JUNOS product literature (1998)
  • PMC-Sierra, Inc. website (Mar. 24, 2000)
  • Raddalgoda, M., "Failure-proof Telecommunications Products: Changing Expectations About Networking Reliability with Microkernel RTOS Technology," QNX Software Systems Ltd. webpage, (1999)
PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$16.95more info
 
Sign InRegister
Username  
Password   
forgot password?