ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,442, issued on April 7, was assigned to Peter Adany (Schaumburg, Ill.).

"Estimation and correction of eccentric phonograph record playback in digital audio recordings" was invented by Peter Adany (Schaumburg, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Computing systems and methods for estimation and correction of audio pitch variations resulting from eccentric rotation in the playback of phonograph records are disclosed. The methods include simulation of phonograph playback to generate eccentric and non-eccentric time bases for correction. Estimation of eccentricity parameters is done by a parameter optimization through evaluation of a spec...