Apparatus and Method for Clock Frequency Estimation With Subsets of Time Measurements

Abstract: an apparatus includes a clock signal input, a sampling circuit, and an estimation circuit. the clock signal input receives n time measurements. a time measurement denotes a respective portion of a given cycle of a clock signal. the sampling circuit is to generate a first and second sampled window from the clock signal input. the first sampled window includes a sum of a plurality of a first m of the n time measurements. the second sampled window includes a sum of a plurality of a last m of the n time measurements. the estimation circuit is to estimate the frequency or period of the clock signal based upon the first sampled window and the second sampled window.

Inventor(s): Gary Qu Jin, Kamran Rahbar

CPC Classification: G01R31/31727 (MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits ))

Search for rejections for patent application number 20250180643