Analog-to-digital conversion apparatus and method related thereto
US5777569A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Nov 27, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/188
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog-to-digital conversion apparatus includes a plurality of amplifiers for amplifying a common input analog signal with predetermined different gains respectively. A plurality of analog-to-digital converters are operative for converting output signals of the amplifiers into corresponding first digital signals respectively, and for outputting the first digital signals respectively. A decision is made as to whether or not each of the first digital signals outputted by the analog-to-digital converters is in at least one of a given clipped state and a given full-scale over state. The first digital signals outputted by the analog-to-digital converters are corrected into respective second digital signals representing substantially equal levels. When none of the first digital signals is in at least one of the given clipped state and the given full-scale over state, one is selected out of all the second digital signals as a final digital output signal. When at least one of the first digital signals is in at least one of the given clipped state and the given full-scale over state, one is selected out of the second digital signals unrelated to the at least one of the first digital sign…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.