Photoelectronic switch
US4741000A · kind A · utility
21Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1986 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | Jun 24, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/941
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A photoelectronic switch circuit of a pulse-modulated light system adapted to emit pulse light and conduct detecting operation by detecting only the photo-reception signal synchronized with the pulse light, and it comprises a counter control circuit for resetting or presetting the output signal from a counter if the number of pulse light successively received is less than a predetermined number to eliminate the effect, if any, of external disturbance light and facilitates to attain the integrated circuit by reducing the number of parts for the circuit constituting portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.