| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately determine the distance between transceivers. <P>SOLUTION: An apparatus for wireless communications is disclosed which includes a super regenerative receiver adapted to receive an incoming signal from a remote apparatus, and a circuit adapted to at least partially determine the distance to the remote apparatus on the basis of the incoming signal. The super regenerative receiver is configured for relatively high sensitivity to allow the distance measurement circuit to discern the line-of-sight (LOS) portion of the incoming signal from the non-LOS portion thereof. Using the time of the LOS portion of the incoming signal, the circuit is capable of more accurately determining the distance to the remote apparatus. By sending a signal to the remote apparatus, and receiving a response signal from the remote apparatus, the circuit may determine the distance to the remote apparatus from the respective times of the transmission and reception of the signals. <P>COPYRIGHT: (C)2013,JPO&INPIT |
