Area measuring apparatus using television
US4646354A · kind A · utility
3Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1984 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Oct 25, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/285
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An area measuring apparatus for measuring the surface area of an object by the use of a TV camera. The apparatus comprises a comparator which separates a component corresponding to the image of the object from the image signal obtained with the TV camera; a gate circuit which allows a clock signal to pass only while the image component is detected; and an arithmetic circuit which counts the pulses of the clock signal allowed to pass the gate circuit and corresponding to a single frame of the image signal and converts the pulse counts into an area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.