Pixel clock generating device, laser scanning device, and image forming device
US6927789B2 · kind B2 · utility
26Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04794
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel clock generating device includes a measurement unit that measures a scanning time required for scanning a length and outputs a measured value, a pixel clock generating unit that generates a pixel clock, and a reference clock generating unit that generates a reference clock having a frequency higher than the pixel clock. A phase of the pixel clock is controlled based on (i) the reference clock and (ii) a comparison result between the measured scanning time and a preset scanning time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.