Application of a continuously tuned phase shift to a periodic signal
US6870414B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2003 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | May 12, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/20
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to a system and a method for applying a continuously tuned phase shift to a periodic signal. In order to avoid distortions in the output phase shifted periodic signal, it is proposed that a phase shifting according to a first control signal and a phase shifting according to a second control signal are applied to the periodic signal in parallel. Both control signals are identical to each other, but shifted in time against each other. Both control signals are varying within a specific range and are jumping between their maximum and minimum value whenever a boarder of this range is reached. The first phase shifted periodic signal and the second phase shifted periodic signal are selected alternately in a way that phase shifts which are based on a portion of a control signal close to its jumping between its maximum and minimum values are excluded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.