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

Claim 10:
11. A method for transmitting an amplitude modulated data signal in an RF-Field over the air to a receiver of an RFID communication system, comprising the steps of:
generating a carrier signal with a particular frequency and waveform;
modulating the carrier signal in relation to a data signal to be transmitted, thereby generating an amplitude modulated data signal;
transmitting the amplitude modulated data signal in the RF-Field over the air;
selecting the waveform of the carrier signal based on the data signal; and
selecting in a first time frame (t3 →t4) after the rising edge of the data signal or encoded data signal during the rising edge of the envelope of the RF-Field a waveform of the carrier signal with the same frequency, but with lower energy content than outside of this first time frame (t3 >t4).