Image signal encoding and communicating apparatus using means for extracting particular portions of an object image
US5710590A · kind A · utility
45Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1995 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Apr 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A picture communication apparatus includes an extracting circuit for extracting video data of at least one portion from video data inputted thereto, an encoder for respectively encoding the extracted video data and the remaining video data, and a multiplexer for multiplexing the encoded video data. When encoding the video data, predetermined amount of codes are allocated to the respective video data. This suppresses deterioration in the picture quality when conducting an image communication via a transmission path having a low transmission rate. The transmitted video is displayed on a contoured display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.