Stochastic encoding in analog to digital conversion
US9077363B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 2013 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Feb 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1028
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and system for encoding an analog signal on a stochastic signal, the encoded signal then converted to a digital signal by an analog to digital converter, the analog to digital converter thereafter decoding from the encoded signal a digital signal, which corresponds to the analog signal. The stochastic signal may be a noise signal shaped to a Gaussian normal curve. An encoding process is performed by a multiplication circuit, which multiplies the stochastic signal by the analog signal, producing a product signal for an analog to digital conversion. During analog to digital conversion, the product signal is decoded. The decoding is performed using an arithmetic operation, which may be a Root Sum Square function or a Root Means Square function. The decoded signal is then mapped to account for offset error, gain error, and endpoint adjustment. The result is a decoded digital signal corresponding to the analog signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.