| 发明名称 |
APPARATUS FOR USE IN MEASURING PHASE DISPERSION PRODUCED BY APPARATUS OR A SYSTEM |
| 摘要 |
First and second waves at distinct frequencies are mixed with a 3rd wave to produce fourth and fifth waves having a common frequency. The phase difference between the fourth and fifth waves is then detected to produce an output which is directly related to the phaseal relationship between the first and second waves.
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| 申请公布号 |
US3675136(A) |
申请公布日期 |
1972.07.04 |
| 申请号 |
USD3675136 |
申请日期 |
1971.04.01 |
| 申请人 |
BELL TELEPHONE LAB. INC. |
发明人 |
KEVIN CHRISTOPHER O'BRIEN |
| 分类号 |
G01R25/00;(IPC1-7):G01R25/00 |
主分类号 |
G01R25/00 |
| 代理机构 |
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代理人 |
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| 地址 |
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