Circuitry for the generation and synchronous detection of optical pulsed signals
US4442349A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1980 |
| Grant date | Apr 10, 1984 |
| Priority date | — |
| Expiry date | Sep 15, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Circuitry for the generation and synchronous detection of optical pulsed signals contaminated by additive background noise characterized by a high signal-to-noise ratio. The circuitry comprises a source for generating optical pulsed signals, a detector for generating detector signals in response to the optical pulsed signals, and a signal processor for processing the detector signals in synchronism with the optical pulsed signals. The signal processor for processing the detector signals includes a high pass filter, an integrator and at least one switch synchronized with the optical pulsed signals for driving the integrator. The circuitry is preferably under computer control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.