Analog FIR filter
US8369817B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2010 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Jul 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2210/021
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog finite impulse response (AFIR) filter including at least one variable transconductance block having an input for receiving an input voltage and being adapted to sequentially apply each of a plurality of transconductance levels to the input voltage during at least one of a plurality of successive time periods to generate an output current at an output of the variable transconductance block, the at least one variable transconductance block including a plurality of fixed transconductance blocks each receiving the input voltage and capable of being independently activated to supply the output current; and a capacitor coupled to the output of the variable transconductance block to receive the output current and provide an output voltage of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.