Filter, filtering method, and filter system
US11277117B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2020 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Aug 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45591
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A filter includes multiple filter circuits. The filter circuits are coupled in series between an input terminal and an output terminal, to generate an output signal according to an input signal. One of the filter circuits operates as an active filter circuit or a passive filter circuit according to amplitude of the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.