Bi-directional scanning and imaging with scanning compensation
US7583417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2004 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Apr 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04789
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In bi-directional imaging, such as bi-directional printing, a driving mechanism scans a light beam through a scan path across an imaging window. A controller enables transmission of video data to a modulator when the light beam is positioned for imaging on the imaging window. Video data is transmitted to the modulator when the light beam is traveling in a forward direction or a reverse direction across the imaging window, whereby a modulated light beam is capable of producing an image when traveling in the forward or reverse directions. The controller adjusts scan durations or image rasterization rates to ensure that each scan is properly aligned with the prior and subsequent scan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.