Self-adjusting programmable on-chip clock aligner

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Having specific delay in producing output waveform

Reexamination Certificate

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Details

C327S261000, C327S265000

Reexamination Certificate

active

07015740

ABSTRACT:
A circuit including a sensing circuit, which includes a first delay circuit and a tuning circuit. The tuning circuit includes a sense counter and a reference counter. The sense counter is coupled to the first delay circuit and is configured to count a number of oscillations provided by the first delay circuit and provide a notification to the tuning circuit when the sense counter reaches a threshold value. The reference counter is coupled to the sense counter and a reference clock. The reference counter is configured to store a reference time which represents a time elapsed for the sense counter to reach the threshold value. Also included in the circuit is a second delay circuit coupled to the sensing circuit.

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patent: 6316980 (2001-11-01), Vogt et al.
patent: 6581017 (2003-06-01), Zumkehr
patent: 2002/0070783 (2002-06-01), Sacki
patent: 1 137 186 (2001-09-01), None

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