Patent ID: 7149903
Filing Date: 2006-12-12
Classification: H03K

Abstract:
1. A system for signal delay in an adaptive voltage scaling slack detector comprising: an adjustable voltage supply; a resetable delay loop circuit comprising a launch input and a first reset input, said launch input for receiving a launch pulse waveform, wherein said resetable delay loop circuit circulates a pulse in response to receiving said launch pulse waveform; and a resetable counter/latch circuit comprising a second reset input, an output, an input coupled to an output of said resetable delay loop circuit, and a sample input, said counter/latch circuit for counting the number of times said pulse circulates in said resetable delay loop circuit, said sample input for receiving a sample pulse waveform, wherein said sample pulse waveform causes said resetable counter/latch to latch a pulse circulation count, wherein said adjustable voltage supply is adjusted based on said pulse circulation count.