发明名称 |
Distance ranging apparatus and method |
摘要 |
The disclosure is directed to a microprocessor-based apparatus and method for determining the distance between an object and a reference position. An embodiment of a graphical digitizer is set forth in which a microprocessor system is adapted to generate and store a count that depends upon the number of instruction cycles that the microprocessor system performs during a time interval that is a function of the travel time of acoustic wave energy traveling between the object and the reference position. In a disclosed embodiment, acoustic receivers are mounted with their axes parallel, and each receiver has a generally circular receptivity pattern.
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申请公布号 |
US4357672(A) |
申请公布日期 |
1982.11.02 |
申请号 |
US19800173723 |
申请日期 |
1980.07.30 |
申请人 |
SCIENCE ACCESSORIES CORPORATION |
发明人 |
HOWELLS, JOSEPH A.;SINDEBAND, SEYMOUR J. |
分类号 |
G01S15/46;G01S15/88;(IPC1-7):G06F15/20 |
主分类号 |
G01S15/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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