Self-calibrating precision timing circuit and method for a laser range finder
US6445444B1 · kind B1 · utility
33Cited by
23References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2001 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Jan 26, 2021 |
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 instruments 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.