Resources Contact Us Home
High-performance fault tolerant computer system with clock length synchronization of loosely coupled processors

Image Number 10 for United States Patent #5845060.

A fault-tolerant computer system employing multiple CPUs executing the same instruction stream under independent clock cycle timing. The CPUs deterministically execute the instructions internally until input or output operations require access to memory or devices which are not synchronous with the local CPU clock. The CPUs are forced to take the same number of CPU clock cycles to complete the I/O operations. When the I/O operation is complete the internal processing of the instruction stream continues in a manner which is clock aligned in each of the multiple CPUs but which may be separate in real time due to oscillator drift. Accumulated drift is periodically removed by a timed interrupt which forces resynchronization of the CPUs in real time.

  Recently Added Patents
Nonvolatile semiconductor memory device and method for controlling the same
Light emitting element, method for manufacturing the light emitting element, optical element and method for manufacturing the optical element
HSP20 inhibits amyloidogenesis and neurotoxicity
Light-emitting element, light-emitting device, and electronic device
Nonvolatile semiconductor storage device having conductive and insulative charge storage films
Vanilloid receptor ligands and use thereof for the production of pharmaceutical preparations
System and method for a TCP mapper
  Randomly Featured Patents
Bag for packaging animal's droppings
Wiper control system
Monitoring system
Method of operation of card activated automated banking machine
Coating method for modifying adhesion of thin films to substrates
Communication apparatus and method of controlling same
Compositions and systems for forming crosslinked biomaterials and methods of preparation of use
Thermal break frame with load transfer member
Combined transmitter/receiver integrated circuit with learn mode
Electric toothbrush bristle pattern