Weak beam detection
US5696362A · kind A · utility
12Cited by
13References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1997 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Jan 27, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/104
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for detecting weak beams in an beam detection system includes a plurality of emitters for radiating beams of energy, a plurality of detectors for providing detector signals in response to the beams of energy radiated by said plurality of emitters and means for detecting if the beams radiated by said plurality of emitters are weak. If weak beam is detected, the beam is determined inoperative by the obstruction detection system and is not considered in subsequent obstruction detection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.