Electronic still camera providing multi-format storage of full and reduced resolution images
US5164831A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1990 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Mar 15, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3277
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic still camera employs digital processing of image signals corresponding to a still image and storage of the processed image signals in a removable static random access memory card. An image sensor is exposed to image light and the resultant analog image information is converted to digital image signals. A control processor controls the exposure section and the A/D converter, delivering digital signals to a multi-image buffer at a rate commensurate with normal operation of the camera. A digital processor operates on the stored digital signals, transforming blocks of the digital signals and encoding the signals into a compressed stream of processed image signals, which are downloaded to the memory card. The digital processor operates at a throughput rate different than the input rate for better image capture and optimum utilization of the camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.