| 摘要 |
Provided are an apparatus for spatial filtering using transmission delay difference of signals and method for the same. A scanning apparatus may comprise a first signal generating part generating a first signal, a second signal generating part generating a second signal, and a response receiving part receiving a response message based on arrival time difference between the first signal and the second signal from the counterpart apparatus. Therefore, the scanning apparatus can discriminate apparatuses positioned in a specific direction and apparatuses positioned in other directions by using arrival time difference of received signals. |
