Solar powered laser receiver circuit
US6046445A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Apr 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C15/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light detection system is provided including a switching circuit connected to an inductor shunted across a photoelectric cell and operative to switch between a light detection state and a charge storage state, wherein the light detection state causes a majority of current flowing through the inductor to bypass the charge storage circuit, and wherein the charge storage state causes a majority of current flowing through the inductor to pass through the charge storage circuit. In one embodiment of the present invention, the switching circuit is changed to the light detection state during a first period of time during which the laser beam is in the vicinity of the photoelectric cell and to the charge storage state during a second period of time during which the laser beam is remote from the photoelectric cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.