Rolling shutter bar code imaging
US9454689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2014 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Dec 19, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10732
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, devices, and systems for rolling shutter bar code imaging are described herein. One method includes initiating the imaging of a bar code by initiating a sequence of procedures to accumulate a charge in a first row of pixels as they are exposed to light thereby capturing data to create a first row of the image of the bar code at a first time, initiating the sequence of procedures to accumulate a charge in a subsequent row of pixels as they are exposed to light thereby capturing data to create a subsequent row of the image of the bar code at a second time, actuating a light source to illuminate the bar code at multiple specific times during a pre-determined timing sequence, and de-blurring the image data for each row based on the specific times during the pre-determined timing sequence that the light source was actuated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.