Time stamping events for fractions of a clock cycle

Details Time stamping events for fractions of a clock cycle Time stamping events for fractions of a clock cycle

2005-12-02

2008-03-04

Paumen, Gary F. (Department: 2833)

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

C368S120000, C375S354000, C702S079000, C702S187000

Reexamination Certificate

active

07339853

ABSTRACT:
Generally, the embodiments are directed to circuits and methods for time stamping an event at a fraction of a clock cycle. A time stamping circuit comprises two or more detection circuits. The detection circuits receive an event-in signal and generate event signals based on a clock phase at which the event-in signal was received. A decoder receives the event signals and outputs an event-out signal and a time stamp that represents the phase at which the event-in signal was detected. By time stamping the event-in signal to a phase division, the time stamping circuit detects event signals that occur at a rate faster than the clock cycle.

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