Moving object detecting apparatus
US4403142A · kind A · utility
8Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | May 14, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R7/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A moving object detecting apparatus of which a plurality of light receiving means arranged to have a common light receiving zone and a plurality of independent light receiving zones are disposed within a single casing together with a light emitting means. Receiving order in the respective light receiving means of reflected light from a moving object within the zones is detected to discriminate moving direction of the object and desired indications are performed responsive to the discriminated direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.