Electronic circuit
US7671680B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2007 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Jun 16, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3084
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic circuit includes an input terminal, a transimpedance amplifier connected to the input terminal and including an amplifier and a feedback resistor, a first time constant circuit smoothing an output from the transimpedance amplifier, a gain control circuit arranged between the input terminal and ground potential and controlling current flowing between the input terminal and the ground potential on the basis of the output from the first time constant circuit, and a safeguard circuit controlling the gain control circuit and blocking the current flowing between the input terminal and the ground potential, when a signal to be input into the input terminal is stopped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.