RFID DEVICE, RFID SYSTEM AND SIGNAL DISTORTION PRE-COMPENSATION PROCESS IN RFID SYSTEMS
First Claim
1. An RFID device comprising a device air interface with a predefined quality factor for transmitting wireless carrier and data signals to a remote RFID transponder comprising a transponder air interface with a predefined quality factor, wherein carrier and data signal pre-compensation means are arranged between the device air interface and data signal processing means, wherein the data signal pre-compensation means are adapted to pre-compensate signal distortions of the carrier and data signals arising during transmission caused by the quality factors of the device air interface and the transponder air interface of the RFID device and the RFID transponder, respectively.
10 Assignments
0 Petitions
Accused Products
Abstract
In an RFID system an RFID device (2) comprises a device air interface (C2) with a predefined quality factor (Q2) for transmitting wireless carrier and data signals (CS) being transmitted to a remote RFID transponder(1) comprising a transponder air interface (C1) with a predefined quality factor (Q1). Carrier and data signal pre-compensation means (3) are arranged between the device air interface (C2) and data signal processing means (4), wherein the carrier and data signal pre-compensation means (3) are adapted to pre-compensate signal distortions of the carrier and data signals (CS) caused by the quality factors (Q2, Q1) of the device air interface (C2) and the transponder air interface (C1) of the RFID device (2) and the RFID transponder(1), respectively.
14 Citations
13 Claims
- 1. An RFID device comprising a device air interface with a predefined quality factor for transmitting wireless carrier and data signals to a remote RFID transponder comprising a transponder air interface with a predefined quality factor, wherein carrier and data signal pre-compensation means are arranged between the device air interface and data signal processing means, wherein the data signal pre-compensation means are adapted to pre-compensate signal distortions of the carrier and data signals arising during transmission caused by the quality factors of the device air interface and the transponder air interface of the RFID device and the RFID transponder, respectively.
- 9. A process for pre-compensating distortions of wirelessly transmitted carrier and data signals in an RFID system comprising an RFID device with a device air interface for transmitting wireless carrier and data signals and at least one RFID transponder with a transponder air interface, wherein the pre-compensating process comprises determining a quality factor of the device air interface of the RFID device, determining a quality factor of the transponder air interface of the RFID transponder, determining a pre-compensation function being adapted to pre-compensate signal distortions of the carrier and data signals arising during transmission to the device air interface caused by the quality factors of the transponder air interface and the device air interface and applying the pre-compensation function to the carrier and data signals to be transmitted.
Specification