Apparatus for controlling a scanning speed of an image scanner
US6147776A · kind A · utility
8Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1998 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Jun 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/393
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image scanner, including an optical image reading unit which reads an image from a document and a carriage which carries the optical image reading unit. Also included is a motor which drives the carriage, and a driver which outputs a sequence of drive signals to drive the motor. Further, a timing of each drive signal of the sequence of drive signals output by the driver is selected in accordance with a desired incremental magnification of the document. In addition, the incremental magnification of the document may be selected in steps of 0.1%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.