APPARATUS AND RESPECTIVE METHOD FOR COMMUNICATING WITH A TRANSPONDER AND SYSTEM FOR COMMUNICATING

• US 20180129839A1
• Filed: 11/03/2017
• Published: 05/10/2018
• Est. Priority Date: 11/04/2016
• Status: Active Grant

• Current Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Original Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Inventors: SCHMIDT, Philip, VOM BOEGEL, Gerd, MEYER, Frederic
• Granted Patent: US 10,607,045 B2
• Time in Patent Office: Days
• CPC Class Codes: G01S 13/765 with exchange of information between interrogator and responder
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10118 the sensing being preceded by at least one preliminary step
• CPC Class Codes: G06K 7/10346 the antenna being of the far field type, e.g. HF types or dipoles
• CPC Class Codes: H04L 27/2273 associated with quadrature demodulation, e.g. Costas loop
• CPC Class Codes: H04L 7/042 Detectors therefor, e.g. correlators, state machines digital correlators in general G06F17/15

Abstract

The invention relates to an apparatus for communicating with a transponder. The apparatus includes a transmit apparatus, a receive apparatus and an evaluation apparatus. The transmit apparatus transmits a transmit signal to the transponder. Based on a signal emitted by the transponder, the receive apparatus receives a receive signal. Based on the transmit signal and/or a signal portion, the evaluation apparatus evaluates the receive signal with respect to data errors. Further, the invention relates to a respective method as well as to a system for communicating.

Claims

1. Apparatus for communicating with a transponder,

wherein the apparatus comprises a transmit apparatus, a receive apparatus and an evaluation apparatus,

wherein the transmit apparatus is configured to emit a transmit signal to the transponder,

wherein the receive apparatus is configured to receive a receive signal based on a signal emitted by the transponder, and

wherein the evaluation apparatus is configured to evaluate the receive signal with respect to data errors based on the transmit signal and/or a signal portion.

2. Apparatus according to claim 1,

wherein the evaluation apparatus is configured to evaluate the receive signal with respect to data errors using the transmit signal and/or a signal portion.

3. Apparatus according to claim 1,

wherein the signal emitted by the transponder is based on the transmit signal and the data signal of the transponder.

4. Apparatus according to claim 1,

wherein the transmit signal comprises two independent signal portions.

5. Apparatus according to claim 4,

wherein the signal portions originate from two different signal sources.

6. Apparatus according to claim 1,

wherein the evaluation apparatus is configured to provide a data signal of the transponder based on the receive signal.

7. Apparatus according to claim 1,

wherein a data rate of the transmit signal is predetermined such that the data rate of the transmit signal is greater than a data rate of a data signal of the transponder.

8. Apparatus according to claim 1,

wherein the evaluation device of the evaluation apparatus is configured to synchronize the receive signal with a synchronization signal and wherein the synchronization signal is predetermined based on the transmit signal.

9. Apparatus according to claim 1,

wherein the transmit apparatus is configured to emit the transmit signal multiple times and/or across a predetermined transmit time period.

10. Apparatus according to claim 1,

wherein the apparatus is configured as RFID reader, and

wherein the transponder is an RFID transponder.

11. System for communicating,

wherein the system comprises an apparatus for communicating with a transponder and a transponder,

wherein the apparatus comprises a transmit apparatus, a receive apparatus and an evaluation apparatus,

wherein the transmit apparatus is configured to emit a transmit signal to the transponder,

wherein the receive apparatus is configured to receive a receive signal based on a signal emitted by the transponder,

wherein the evaluation apparatus is configured to evaluate the receive signal with respect to data errors based on the transmit signal and/or a signal portion,

wherein the transponder comprises a transponder receive apparatus and a transponder transmit apparatus,

wherein the transponder receive apparatus is configured to receive a signal from the apparatus, and

wherein the transponder transmit apparatus is configured to emit a signal based on the received signal and the data signal to the apparatus.

12. System according to claim 11,

wherein the evaluation apparatus is configured to evaluate the receive signal with respect to data errors using the transmit signal and/or a signal portion,

13. System according to claim 11,

wherein the transponder is configured such that the signal emitted by the transponder is based on a modulation of the transmit signal with a data signal of the transponder.

14. Method for communicating with a transponder,

wherein the transmit signal is emitted to the transponder,

wherein a receive signal depending on a signal emitted by the transponder is received, and

wherein the receive signal is evaluated with respect to data errors based on the transmit signal and/or a signal portion.

15. Method according to claim 14,

wherein the receive signal is evaluated with respect to data errors using the transmit signal and/or a signal portion.