Ultra high resolution timing measurement

Details Ultra high resolution timing measurement Ultra high resolution timing measurement

2011-07-26

2011-07-26

Miska, Vit W (Department: 2833)

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

C324S076550

Reexamination Certificate

active

07986591

ABSTRACT:
An integrated circuit for high-resolution timing measurement includes a delay pulse generator, the first oscillator to generate the first clock with the first frequency, the second oscillator to generate the second clock with the second frequency, an oscillator tuner, a sampling module, a counter, wherein the delay pulse generator generated a delayed pulse from the second clock, the oscillator tuner controls the second frequency to be as close as possible to the first frequency without being the same as the second frequency, the sampling module samples the delayed pulse at the first frequency, the counter generates a digital counter value by counting a number of sampling by the sampling module, and a time width of the delayed pulse can be calculated by the digital counter value. The second oscillator can be a tunable ring oscillator with one or more coarse tune stages and one or more fine-tune stages.

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