AD converter apparatus, AD converter circuit, and AD conversion method
US8884803B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 1, 2013 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | May 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/165
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog-digital converter apparatus includes a plurality of AD converters connected in series, each AD converter to convert an analog signal received by a first AD converter, at least one of the AD converters including: a residual signal generator that generates a first residual signal, the first residual signal being a difference between the analog signal or one of two residual signals amplified and output by a preceding AD converter and a first reference signal, and a second residual signal, the second residual signal being a difference between the analog signal or one of the two residual signals and a second reference signal; and an amplifier that amplifies and outputs the first residual signal to a subsequent AD converter at a first timing and amplifies and outputs the second residual signal to the subsequent AD converter at a second timing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.