Abstract: Analyzing a packet header in a data communications system involves using a descriptor mask to control selective comparison between one or more bits of the packet header and one or more bits of a session descriptor. Setting a mask bit to one state indicates that a comparison between a corresponding bit of a received packet header and a corresponding bit of a session descriptor should be performed, whereas setting the mask bit to an alternative state indicates that no comparison should be performed. A comparison result is generated that indicates whether all of the one or more bits of the packet header match corresponding ones of the one or more bits of the first session descriptor. The descriptor mask and session descriptor are programmable, so that the comparison hardware design is protocol-independent.

Abstract: A method for arc fault detection, includes automatically generating an output signal responsive to an input signal. The input signal is indicative of an arc fault. The output signal is configured to cause an electrical circuit to open. The output signal is generated responsive to a derived signal based upon a first threshold having a first amplitude.

Abstract: Certain exemplary embodiments include a method, which can include automatically generating an output signal responsive to an input signal. The input signal can be indicative of an arc fault. The output signal can be configured to cause an electrical circuit to open. The output signal can be generated responsive to a derived signal based upon a first threshold having a first amplitude.

Abstract: Certain exemplary embodiments comprise a method, which can comprise automatically generating an output signal responsive to an input signal. The input signal can be indicative of an arc fault. The output signal can be configured to cause an electrical circuit to open. The output signal can be generated responsive to a derived signal based upon a first threshold having a first amplitude.

Abstract: Certain exemplary embodiments comprise a method, which can comprise automatically generating an output signal responsive to an input signal. The input signal can be indicative of an arc fault. The output signal can be configured to cause an electrical circuit to open. The output signal can be generated responsive to a derived signal based upon a first threshold having a first amplitude.

Abstract: Certain exemplary embodiments described herein comprise a method comprising a plurality of activities comprising: discriminating an arcing condition from a non-arcing broadband signal, and, in response to detecting an arcing condition, outputting a trip signal to a circuit breaker controlling a predetermined alternating current circuit associated with the arcing condition.

Abstract: Certain exemplary embodiments comprise method, the method comprising a plurality of activities comprising: for each of a plurality of potential arcing events associated with an alternating current: sensing the potential arcing event; identifying an amplitude-duration pair associated with the potential arcing event; assessing the plurality of amplitude-duration pairs; and determining if the plurality of potential arcing events corresponds to an arcing condition.

Abstract: Certain exemplary embodiments described herein comprise a method comprising a plurality of activities comprising: discriminating an arcing condition from a non-arcing broadband signal, and, in response to detecting an arcing condition, outputting a trip signal to a circuit breaker controlling a predetermined alternating current circuit associated with the arcing condition.

Abstract: Certain exemplary embodiments comprise method, the method comprising a plurality of activities comprising: for each of a plurality of potential arcing events associated with an alternating current: sensing the potential arcing event; identifying an amplitude-duration pair associated with the potential arcing event; assessing the plurality of amplitude-duration pairs; and determining if the plurality of potential arcing events corresponds to an arcing condition.