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:
Jun. 13, 2017
Filed:
Mar. 11, 2016
Inside Secure, Meyreuil, FR;
Jean-Yves Michel, Vallauris, FR;
Robert Schouten, Grasse, FR;
Inside Secure, Meyreuil, FR;
Abstract
In a general aspect, a method for transmitting data by inductive coupling can include applying, at a rate of a data-carrying signal, a plurality of bursts of a periodic signal to a tuned inductive antenna circuit. The method can further include producing, in the tuned inductive antenna circuit, an antenna signal, the antenna signal generating a magnetic field. The method can further include delimiting an amplitude of each burst of the plurality of bursts of the periodic signal in accordance with an envelope signal, the envelope signal having a rising edge and a falling edge. The delimiting can include shaping the falling edge of the envelope signal using one of a digital shaping circuit and an analog shaping circuit, such that a slope of the falling edge of the envelope signal is flattened as compared to a square envelope signal.