Analog/digital converter and method for controlling the same
US6812875B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Feb 20, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/022
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for controlling an analog/digital converter circuitry includes generating a digital signal by accumulating a predetermined increment at a predetermined time interval in accordance with a value of a first analog signal input to the analog/digital converter. The digital signal is converted to a second analog signal, the second analog signal is subtracted from the first analog signal, and a detection signal is generated in accordance with a subtraction result. An accumulation mode is selected from accumulation modes in accordance with the detection signal and accumulation is performed at the time interval and in the increment in accordance with the selected accumulation mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.