Wave-shaping for over- and undershoot prevention
US11909426B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2021 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Nov 6, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/26
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transmitter (1; 21) to transmit an amplitude modulated data signal (2) in an RF-Field (3) over the air to a receiver (4) of an RFID communication system (5; 22) which transmitter (1; 21) comprises:a wave generator (6) to generate a carrier signal (7) with a particular frequency and waveform;a modulation stage (15) to modulate the carrier signal (7) in relation to a data signal to be transmitted;an antenna (11) connected to the modulation stage (15) or wave generator (6) via an amplifier (9) and a matching circuit (10) to transmit the amplitude modulated data signal (2) in the RF-Field (3) over the air,characterized in that the transmitter (1; 21) furthermore comprises:a shape stage (16) connected to the wave generator (6) to select the waveform of the carrier signal (7) depending directly or indirectly on the data signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.