Compressed image producing system
US4288816A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1978 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | Apr 17, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/36
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A compressed image producing system is disclosed which comprises a buffer memory unit including a plurality of cascade-connected shift register stages to which image signals time-sequentially produced by the conversion of the respective picture elements of an image into the corresponding binary signals through the scanning of the image are successively applied, a partial image extracting unit including a plurality of registers which take in the image signals from the shift register stages respectively and parallely delivers the image signals bit by bit, and a sampling pulse generating circuit which generates sampling pulses at predetermined intervals. The respective shift registers of the buffer memory perform their data shift operations in response to the sampling pulses to intermittently take in the image signals so that sampling point data corresponding to the scanning lines in number are stored in each register and a plurality of compressed images constructed by different groups of the sampling points are continuously produced through the shifting of the image extracting position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.