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:
Aug. 25, 2026
Filed:
Jul. 14, 2022
Intel Corporation, Santa Clara, CA (US);
Hongjiang Song, Mesa, AZ (US);
Mingming Xu, Phoenix, AZ (US);
Vijayalakshmi Ramachandran, Chandler, AZ (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
An apparatus, system, and method for low frequency periodic signaling (LFPS) and/or squelch detection are provided. A circuit can include a threshold generator situated to receive a differential input signal from an initiator device and generate a differential voltage threshold signal based on the differential input signal, an amplifier circuit electrically coupled to the threshold generator situated to amplify the differential voltage threshold signal resulting in an amplified threshold signal, a sampler situated to sample the amplified threshold signal at a first clock rate faster than a clock rate of an LFPS/squelch signaling frequency resulting in digital sample results, and a pattern filter circuit situated to determine if the digital sample results are asserted for each of a specified number of consecutive clock cycles at the first clock rate.