Flexible Lissajous scanning pattern by phase modulation
US11356059B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2020 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Dec 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/30
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An oscillator system includes a first oscillator structure configured to oscillate about a first rotation axis at a first oscillation frequency; a second oscillator structure configured to oscillate about a second rotation axis at a second oscillation frequency; a driver circuit configured to generate a first driving signal to drive an oscillation of the first oscillator structure with a first oscillation phase and the first oscillation frequency and generate a second driving signal to drive an oscillation of the second oscillator structure with a second oscillation phase and the second oscillation frequency. The first oscillation frequency and the second oscillation frequency have a variable frequency ratio with respect to each other that varies over time. The driver circuit is configured to modulate at least one of the first oscillation phase or the second oscillation phase to modulate the variable frequency ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.