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
Method of manufacturing touch panel
Active matrix substrate, method for manufacturing same, and liquid crystal display apparatus
Method for cutting C--Mn steel with a fiber laser
Sub-resolution assist feature repair
Methods and devices for enforcing network access control utilizing secure packet tagging
Apparatus and method for weighing an item of mail during transport through a sorting installation and having an anti-vibration device
  Randomly Featured Patents
Handle assembly for an x-ray examination apparatus
Machine translation system including semantic information indicative of plural and singular terms
Bone resection apparatus
Handling access requests to a page while copying an updated page of data to storage
Fuel reforming system for an internal combustion engine
Silicone composition which can be crosslinked into an elastomer by hydrosilylation in the presence of carbene-based metal catalysts, and catalysts of this type
Electrophotographic photoreceptor with composite interlayer and method of making
Partially liquid-cooled type forced air-cooling system for internal combustion engine
Grain milling and degermination process
Recovery of nickel from wastes