Challenged claims of Foras Technologies Ltd.'s patent that discloses a method for detecting loss of lockstep for a processor in a multi-processor system aren’t unpatentable as obvious over prior art, the Patent Trial and Appeal Board said, in an inter partes review by BMW of North America LLC. The board determined that the challenged claims aren’t obvious over various combinations of prior art, including prior art directed to a method and system for dynamically activating a spare processor when processor failure is detected in a multi-processor data processing system, that describes a computer system describes a computer system using lock-stepped ...
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