STMicroelectronics International Assigned Patent

STMicroelectronics International N.V., Geneva, Switzerland, has been assigned a patent (12165680) developed by Sentieri, Enrico, Lodi, Italy, Pulici, Paolo, Lainate Mi, Italy, Mammei, Enrico, Vittuone, Italy, Bartolini, Michele, Carpiano, Italy, and Tonelli, Matteo, Parma, Italy, for “system and method for disk drive fly height measurement.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method for determining a fly height includes measuring a first differential voltage between a first head of a disk drive and a reference voltage with a first front end circuit, converting the first differential voltage to a first analog current signal with the first front end circuit, and converting the first analog current signal to a second differential voltage with a first back end circuit. The first front end circuit is coupled with the first head. The first back end circuit is coupled with the first front end circuit. The method further includes determining a first capacitance between the first head and a first disk of the disk drive based on the second differential voltage and determining the fly height between the first head and the first disk using the first capacitance.”

The patent application was filed on 2023-12-13 (18/538724).