ALEXANDRIA, Va., June 17 -- United States Patent no. 12,316,327, issued on May 27, was assigned to Rambus Inc. (San Jose, Calif.).
"Phase interpolator with sub-period phase correction" was invented by Divanshu Chaturvedi (Bengaluru, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "A phase interpolator circuit has a first stage that selects a pair of phase vectors from among M available sets of pairs and a second stage that interpolates between the selected pair to phase align a sample clock. The interpolation functions applied to selected pairs of phase vectors can differ to account for integral non-linearity, duty-cycle distortion, phase errors, and crosstalk that vary between phase vectors."
The paten...