Self-calibrating precision timing circuit and method for a laser range finder
US6226077A · kind A · utility
51Cited by
19References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 25, 2000 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Feb 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A highly precise range measurement instrument is made possible through the use of a novel and efficient precision timing circuit which makes use of the instrument's internal central processing unit crystal oscillator. A multi-point calibration function includes the determination of a "zero" value and a "cal" value through the addition of a known calibrated pulse width thereby providing the origin and scale for determining distance with the constant linear discharge of capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.