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:
Nov. 21, 2023
Filed:
Dec. 03, 2021
Applicant:
Stmicroelectronics SA, Montrouge, FR;
Inventor:
Julien Goulier, Grenoble, FR;
Assignee:
STMICROELECTRONICS SA, Montrouge, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01); H04B 17/10 (2015.01); H04L 27/04 (2006.01);
U.S. Cl.
CPC ...
H04B 5/0031 (2013.01); H04B 5/0012 (2013.01); H04B 17/104 (2015.01); H04L 27/04 (2013.01);
Abstract
A contactless communication method comprises retro-modulation of a carrier signal received at the terminals of an antenna in an alternation of modulated states and unmodulated states. The modulated state comprises a modulation of a load at the terminals of the antenna at zero impedance, and the transitions from the modulated state to the unmodulated state are controlled at an instant determined by a first delay.