Stmicroelectronics international n.v. (20250105999). CONTACTLESS COMMUNICATION DEVICE BY ACTIVE LOAD MODULATION
CONTACTLESS COMMUNICATION DEVICE BY ACTIVE LOAD MODULATION
Organization Name
stmicroelectronics international n.v.
Inventor(s)
Florent Sibille of Grenoble FR
CONTACTLESS COMMUNICATION DEVICE BY ACTIVE LOAD MODULATION
This abstract first appeared for US patent application 20250105999 titled 'CONTACTLESS COMMUNICATION DEVICE BY ACTIVE LOAD MODULATION
Original Abstract Submitted
a device of contactless communication by active load modulation includes a receive circuit configured to receive as an input a reception signal originating from a magnetic field intended to be received by an antenna. a transmit circuit has an output coupled to the antenna with a modulation signal in phase with the reception signal intended to be delivered thereon. a circuit compensates for a delay of the modulation signal due to the transmit circuit and to the amplitude of the reception signal. the compensation circuit determines a phase-shift value to be applied to an input signal of the transmit circuit to compensate for the delay.