Electronic volume circuit
US8649532B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 5, 2010 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Jun 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45616
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic volume circuit includes a first signal processing circuit and a second signal processing circuit that are cascaded together. The first signal processing circuit includes a first operational amplifier including an input terminal and an output terminal, one or more input resistors inputting one or more signals to the input terminal of the first operational amplifier, and a feedback resistor connected between the input terminal and the output terminal of the first operational amplifier. The second signal processing circuit includes a second operational amplifier including an input terminal and an output terminal, an input capacitor inputting a signal output from the first operational amplifier to the input terminal of the second operational amplifier, and a resistor and a capacitor connected in parallel between the input terminal and the output terminal of the second operational amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.