The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2025
Filed:
Jul. 18, 2023
Western Digital Technologies, Inc., San Jose, CA (US);
Richard Galbraith, Rochester, MN (US);
Michael J. Ross, Rochester, MN (US);
Weldon M. Hanson, Rochester, MN (US);
John T. Contreras, Palo Alto, CA (US);
Iouri Oboukhov, Rochester, MN (US);
Niranjay Ravindran, Rochester, MN (US);
Pradhan Bellam, Rochester, MN (US);
Derrick E. Burton, Ladera Rach, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
Example channel circuits, data storage devices, and methods for asynchronous sampling from an oversampled analog-to-digital converter are described. The channel circuit may include an analog-to-digital converter configured to generate an oversampled digital signal from an analog data signal using a sample rate that is an integer multiple of the baud rate of the channel circuit. A digital sample interpolator may then interpolate interpolated digital signal values from multiple signal values of the oversampled digital signal and select values at baud rate to generate a baud rate digital signal. The baud rate digital signal may be used by an iterative detector in a timing loop and, once a target timing is achieved, for the iterative detector to detect data bits from the interpolated digital signal.