Image communication apparatus, method and storage medium for transmitting or receiving a color image
US7564578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2005 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Jun 2, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/33357
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an image communication apparatus for communicating a color image with a distant apparatus according to the ITU-T recommendations upon line connection, an original image is read by a scanner unit, and the size of the read original image is identified. If the identified size of the original image is smaller than the page size defined by the ITU-U recommendation, image data is generated by reading the original image upon adding invalid data to the original image to make it have a main scanning length equal to the main scanning length of the minimum page size defined by the ITU-T recommendation in reading the original image through the scanner unit, and the image data is compressed by a JPEG compressing unit and transmitted. In this case, the valid image area of the compressed data is set in accordance with the size of the original image. This allows the receiving side to read only the valid image area, decode the valid image area, and reproduce the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.