Mixed signal processing unit with improved distortion and noise characteristics
US6515604B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Apr 16, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/454
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A mixed signal processing unit with non-linear feedforward paths to improve total harmonic distortion (THD) and noise characteristics of the processor. Specifically the signal processing unit includes a first integrator stage configured to receive an input signal and configured to generate a first integrated signal in response thereto, a second integrator stage coupled to the first integrator stage and configured to generate a second integrated signal from the first integrated signal, a sampling stage coupled to the second integrator stage and configured to sample the second integrated signal received from the second integrator stage at a sample frequency and to generated a logic signal, and a non-linear feed-forward signal path coupled between the first integrator stage and the sampling stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.