Color scanner with built-in color compression hardware to reduce scan time
US5153747A · kind A · utility
1Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1990 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Feb 28, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/593
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The color image scanner includes built-in color compression capabilities to reduce scan time. The improved color scanner scans a color image on a document to provide color image data having a bandwidth of approximately 4-5 megabytes per second. The color image scanner stores the digital color image data on a line by line basis and shifts the stored data into a transmit line circuit. The scanner further includes compression means for compressing the image data at a ratio of approximately 10:1 which is suitable for input to a personal computer for further processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.