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:
May. 13, 2025
Filed:
Apr. 26, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Yunseob Song, Yongin-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
Provided is a near-field communication (NFC) receiver. The NFC receiver includes at least one antenna configured to receive an amplitude modulation (AM) signal, a first analog-to-digital converter (ADC) configured to generate an in-phase (I)-sample by sampling the AM signal based on a first clock signal, a second ADC configured to generate a quadrature-phase (Q)-sample by sampling the AM signal based on a second clock signal, the second clock signal having a phase difference of 90° from the first clock signal, and processing circuitry configured to calculate a root-sum-square (RSS) value between the I-sample and the Q-sample, and detect an envelope of the AM signal by using the RSS value.