Signal processing device and adjusting method
US11955935B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2020 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Oct 25, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/007
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The signal processing device includes: an offset adjuster; an amplitude adjuster; and a delay adjuster, wherein the offset adjuster adjusts the DC offset using a first parameter regarding the DC offset determined based on an output of the offset adjuster which is output when no signal is input to the signal processing circuit by the subtractor, the amplitude adjuster adjusts the amplitude using a second parameter regarding the amplitude determined based on (i) an output of the amplitude adjuster which is output when a first test signal is input to the signal processing circuit and (ii) the first test signal, and the delay adjuster adjusts the delay using a third parameter regarding the delay determined based on the difference signal that is an output of the subtractor when a second test signal is input to the signal processing circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.