Patent ID: 9509373
Filing Date: 2016-11-29
CPC Classification: H04B,H04L

Claim Text:
1. A method for contactless communication of information between a first device and a second device coupled via a near magnetic field, the first and second devices each having an antenna, the method comprising: within the first device, generating a digital data stream corresponding to information to be transmitter and generating a first amplitude-modulated and dithered signal in the antenna of the first device from the digital data stream and from an application of a first dithering, the first dithering being performed by converting the digital data stream to analog data using a dithered clock signal so that samples of the digital data stream are taken with varying delays; and within the second device, performing a frequency transposition of a second amplitude-modulated and dithered signal originating from the first amplitude-modulated and dithered signal with application of a second dithering synchronous with the first dithering.