发明授权
- 专利标题: Echo recognition system
- 专利标题(中): 回声识别系统
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申请号: US266901申请日: 1981-05-26
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公开(公告)号: US4380807A公开(公告)日: 1983-04-19
- 发明人: John M. Reynard
- 申请人: John M. Reynard
- 申请人地址: MA Cambridge
- 专利权人: Polaroid Corporation
- 当前专利权人: Polaroid Corporation
- 当前专利权人地址: MA Cambridge
- 主分类号: G01S7/527
- IPC分类号: G01S7/527 ; G01S7/66 ; G01S15/04
摘要:
An echo-type range finding system is rendered unresponsive to spurious signals and electronic noise, and has its object distance determining accuracy improved by rejecting signals that do not persist for a predetermined period of time.
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