Pulse delay measurement apparatus
US4615617A · kind A · utility
11Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1983 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | Apr 26, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4865
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring the delay time interval between electrical pulse signals, particularly in conjunction with electrooptical range finders. A coarse measuring counter counts clock pulses from a quartz oscillator during the interval and a fine measuring interpolator determines the residual time from the end of the interval to the next clock pulse. Residual time at the start of the measuring interval is avoided by exactly synchronizating the start of measurement with a timing pulse front (n+2) of the quartz oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.