filter circuit and semiconductor device
US7619465B2 · kind B2 · utility
3Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2008 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | May 22, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2011/0494
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A filter circuit includes a low-pass filter and a calibration circuit calibrating a frequency characteristic of the low-pass filter. The calibration circuit includes a negative feedback circuit and a control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.