Optical receiver preamplifier dynamic range enhancing circuit and method
US5734300A · kind A · utility
23Cited by
10References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 17, 1996 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | May 17, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/082
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A preamplifier overload control circuit which enhances the dynamic range of the preamplifier. Separate paths shunt corresponding DC and AC components of the signal from an electro-optical device away from the preamplifier input. The amount of shunting in both paths are controlled by a common control signal, here the average DC value of the signal, such that substantially all of the DC signal is shunted away from the preamplifier input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.