Resources Contact Us Home
Method and mechanism for implementation-independent, on-line, end-to-end detection of faults in self-checking queues in digital hardware systems

Image Number 3 for United States Patent #8024632.

A method and apparatus are provided for detecting faults in a queue (also known as FIFO) in a digital system. The method augments the FIFO with an external monitoring mechanism which, on demand, checks the FIFO's operation and alerts the system to malfunctioning of the FIFO's control mechanism or corruption of data contained therein. The detection apparatus does not depend on the implementation of the FIFO; the checking is based solely on observing the data entering and exiting the FIFO. Furthermore, the apparatus works in a non-intrusive manner during a normal operation of the FIFO as part of the system. The method and apparatus allow for many variants, all derived from the same general scheme, and which allow different levels of protection against faults.

  Recently Added Patents
Light-source control device, light-source control method, image reading device, and image forming apparatus
Method and system for the assignment of security group information using a proxy
Process for the preparation of morphinane analogues
Method of reducing acetaldehyde in polyesters, and polyesters therefrom
Tag-based apparatus and methods for neural networks
Apparatus for electrographic printing or copying
Wireless communication system using pilot allocation, method and pilot pattern thereof
  Randomly Featured Patents
Spray drying method
Spray bottle holder assembly
Optical pickup device and recording and/or reproducing device
Application of .gamma.-SVO and mixture of .gamma.-SVO/.epsilon.-SVO in high rate electrochemical lithium cells containing SVO/CFx/SVO sandwich cathodes
Folding electric bicycle with wheeled storage arrangement
Lens shift mechanism
Polyglycidyl compounds containing N-heterocyclic structure
Expanded programming window for non-volatile multilevel memory cells
Anti-skid reinforcing plate
Oral condom for preventing sexually transmitted diseases