Universal hardware/software feedback control for high-frequency signals
US6504321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2001 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Feb 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/3921
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing closed loop feedback control is presented. The method consists of a hybrid software and hardware solution to take advantage of the useful attributes of both. Analog signals output by the device are sampled at a rate sufficient to preserve all necessary high frequency information, and preprocessed at high speed in hardware. The outputs of the preprocessing stage are then operated on in software at much lower speeds. The method and apparatus allow for the complex real time processing of feedback signals in the digital domain, yet allow the cost efficiencies and programming flexibility of a standard micro-controller to be utilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.