Patent ID: 11909426
Assignee: RENESAS DESIGN AUSTRIA GMBH
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method for using a transmitter to transmit an amplitude modulated data signal in an RF-Field over the air to a receiver of an RFID communication system, comprising:
processing an amplitude modulation of a carrier signal with a particular frequency and waveform with a data signal or encoded data signal to be transmitted; and
selecting a waveform with higher or lower energy content of the carrier signal for one or several waves depending on the occurrence of a rising edge or falling edge in the data signal or encoded data signal to be transmitted, and
wherein a lower energy content of the carrier signal for one or several waves at the occurrence of a rising edge in the data signal or encoded data signal is selected to reduce or avoid an overshoot in the envelope of the RF-Field or, wherein a higher energy content of the carrier signal for one or several waves at the occurrence of a falling edge in the data signal or encoded data signal is selected to reduce or avoid an undershoot in the envelope of the RF-Field.