发明申请
- 专利标题： DELAY MEASURING INSTRUMENT, COMMUNICATION DEVICE, AND DELAY MEASUREMENT METHOD
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申请号： US15377999申请日： 2016-12-13
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公开(公告)号： US20170207886A1公开(公告)日： 2017-07-20
- 发明人: TOSHIO KAWASAKI , Nobuhisa Aoki , TORU MANIWA , Tadahiro Sato , Yusuke Tobisu , Hiroshi Towata
- 申请人： FUJITSU LIMITED
- 专利权人： FUJITSU LIMITED, Kawasaki-shi, JAPAN;
- 当前专利权人： FUJITSU LIMITED, Kawasaki-shi, JAPAN;
- 优先权： JP2016-007473 20160118
- 主分类号： H04L1/20
- IPC分类号： H04L1/20 ; H04L1/24
摘要：
A delay measuring instrument includes a generating unit and a calculating unit. The generating unit is, for example, a multiplier. The calculating unit is, for example, a maximum value detecting unit. The generating unit generates an intermediate signal by multiplying one of transmission signals or the complex conjugate of the one of the transmission signals included in the plurality of transmission signals that are transmitted at different frequencies by a reception signal that includes therein an intermodulation signal generated by the plurality of the transmission signals. The calculating unit calculates, based on a correlation value between the intermediate signal and the other one of the transmission signals included in the plurality of the transmission signals, an amount of delay of the other one of the transmission signals with respect to the intermodulation signal.
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