Variable gain type amplifier
US6518843B1 · kind B1 · utility
5Cited by
2References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Jan 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3042
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A variable gain type amplifier includes a first amplifying circuit, an attenuating circuit connected to an output of the first amplifying circuit, and a second amplifying circuit connected to an output of the first amplifying circuit. An amplification of the first amplifying circuit is adjusted based on a control voltage, and an attenuation of the attenuating circuit is adjusted based on the control voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.