| 摘要 |
<p>Reader (201) for determining the validity of a connection to a transponder (202) wherein the reader (201) is designed to measure a response time of a transponder (202) based on a time interval between sending a first binary code based on predefined numbers to said transponder (202) and receiving a second binary code from said transponder (202) in response to the first binary code and wherein the reader (201) is designed to authenticate the transponder (202) based on the received second binary code simultaneously with the measuring of the response time.</p> |
