发明名称 |
Method and apparatus for measuring distances, and method for determining positions |
摘要 |
The present disclosure provides a ranging method by using a first signal transmitted by a first device, and a second signal generated and transmitted by a target device in response to the first signal. The ranging method calculates the distance between the target device and a second device being in communication with the first and target devices, by using: a first time interval from a point in time of first device's transmitting the first signal to a point of receiving first part of the second signal; a second time interval from a point of the second device's receiving the first signal to a point receiving the first part of the second signal; and a delay time interval from a point of the target device's receiving the first signal to a start time of the second signal and a duration of the first part of the second signal. |
申请公布号 |
US9201140(B2) |
申请公布日期 |
2015.12.01 |
申请号 |
US201214114256 |
申请日期 |
2012.04.25 |
申请人 |
ORTHOTRON CO., LTD. |
发明人 |
Lee Kyungkuk |
分类号 |
H04W24/00;G01S11/02;G01S13/74;G01S13/87 |
主分类号 |
H04W24/00 |
代理机构 |
Harness, Dickey & Pierce, P.L.C. |
代理人 |
Harness, Dickey & Pierce, P.L.C. |
主权项 |
1. A ranging method by using a first signal transmitted by a first device and a second signal generated and transmitted by a target device in response to the first signal, the method characterized in calculating a distance between the target device and a second device being in communication with the first device and the target device, by using:
a first time interval measured from a time point of the first device's completing transmission of the first signal to a time point of the first device's completing reception of a first part of the second signal, and a third time interval measured from a time point of the first device's completing reception of the first part of the second signal to a time point of the first device's completing reception of a second part of the second signal; a second time interval measured from a time point of the second device's completing reception of the first signal to a time point of the second device's completing reception of the first part of the second signal, and a fourth time interval measured from a time point of the second device's completing reception of the first part of the second signal to a time point of the second device's completing reception of the second part of the second signal; a given delay time interval from a time point of the target device's completing reception of the first signal to a start time of the second signal and a given duration of each of the first and the second parts of the second signal; and a given distance between the first device and the second device. |
地址 |
KR |