Predictive analog to digital converters and methods of using
US7405689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2005 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Dec 21, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/38
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods and devices perform analog to digital signal conversion in shorter time and/or with less power consumption than that of a comparable analog to digital conversion that uses a conventional sequential approximation method based on a binary search. A predictive guess is supplied as a digital first signal. The digital first signal is converted (D/A) to a counterpart, analog guess signal. Fewer cycles and less power is consumed if the initial guess is within a certain range of the actual magnitude of the analog input sample signal. In one embodiment, a digital modeler is used to model a process underlying the analog input sample signal to thereby provide fairly good guesses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.