Apparatus and method for producing signal conveying circuit status information

Apparatus is configured for producing an output signal indicating an operating status of a monitored circuit. An input signal relating to the monitored circuit is received at an input node. A pulse train generator, coupled to the input node, is configured for generating a pulse train of a prescribed...

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Bibliographic Details
Main Authors Hack, Thomas P, Dobkin, Robert C, Centuori, Alfonso, Bishop, Andrew
Format Patent
LanguageEnglish
Published 24.08.2010
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Summary:Apparatus is configured for producing an output signal indicating an operating status of a monitored circuit. An input signal relating to the monitored circuit is received at an input node. A pulse train generator, coupled to the input node, is configured for generating a pulse train of a prescribed repetition rate at a duty cycle alternated between first and second duty cycle values at a prescribed frequency. The duty cycle and frequency are indicative of operating status of the monitored circuit.