Transponder reader capable of reading transponders having different signaling protocols
First Claim
1. A transponder reader arranged to read data from transponders, wherein each of said transponders send data according to one transponder signalling protocols, said transponder signalling protocol is selected from a number of different transponder signalling protocols, and a first and a second transponder signals according to the same or different protocols, said transponder reader comprises an antenna means for sending a first analogue signal to one of said transponders and receiving a second analogue signal from said transponders, and said transponder reader further comprises means for analysing said signal received by said antenna means wherein said transponder reader comprises a digital processing means, said transponder reader comprises an analogue to digital converter arranged to receive said second analogue signal from said second analogue signal to supply said first digital processing means, said digital processing means comprises analysing means arranged to analyse said received digital signals according to at least two different transponder signalling protocols.
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Abstract
The present invention provides an apparatus and method that can in a simple and cost-effective way read transponders from different systems implementing different communication protocols. The transponder reader comprises an antenna means for sending a first analogue signal to one of said transponders and receiving a second analogue signal from said transponder, said transponder reader further comprises means for analysing, e.g. demodulating, detecting, decode said signal received by said antenna means according to at least two different protocols.
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Citations
40 Claims
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1. A transponder reader arranged to read data from transponders, wherein each of said transponders send data according to one transponder signalling protocols,
said transponder signalling protocol is selected from a number of different transponder signalling protocols, and a first and a second transponder signals according to the same or different protocols, said transponder reader comprises an antenna means for sending a first analogue signal to one of said transponders and receiving a second analogue signal from said transponders, and said transponder reader further comprises means for analysing said signal received by said antenna means wherein said transponder reader comprises a digital processing means, said transponder reader comprises an analogue to digital converter arranged to receive said second analogue signal from said second analogue signal to supply said first digital processing means, said digital processing means comprises analysing means arranged to analyse said received digital signals according to at least two different transponder signalling protocols.
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21. A method for reading data from transponders, wherein each of said transponders send data according to one transponder signalling protocols,
said transponder signalling protocol is selected from a number of different transponder signalling protocols, and— - a first and a second transponder signals according to the same or different protocols, comprising
sending a first analogue signal to one of said transponders and receiving a second analogue signal from said transponders using an antenna means, and analysing said second analogue signal received by said antenna means, wherein converting said second analogue signal from the analogue domain to a first digital signal in the digital domain, supplying said first digital signal to digital processing means, analysing said received first digital signal using said digital processing means for establishing which of at least two different transponder signalling protocols said transponder uses, selecting said established one of said at least two different transponder signalling protocols, and analysing said first digital signal according to said selected transponder signalling protocol. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
- a first and a second transponder signals according to the same or different protocols, comprising
Specification