Optical recording system for controlling recording light quantity based on pixel patterns in an image
US5270827A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1990 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Mar 20, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0082
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical recording system is disclosed in which input pixels are recorded by controlling the quantity of light as a medium based on the input pixels. The information on the pixels surrounding at least given one of the input pixels is compared with predetermined pattern information, and the particular pixel is accordingly subdivided into a plurality of regions for each of which the light quantity is controlled. Specifically, an optical recording system includes a recognition device for recognizing at least one feature of the desired image by comparing pixel information constituting a predetermined pattern with other pixel information making up a recording target and at least a given one of the pixels with surrounding pixels, and a device for determining the light quantity in a predetermined manner in accordance with the feature. The system further includes a light quantity control device including an exposure pattern signal storage having stored therein a set of rules for controlling the light quantity of a given one of the input pixels in accordance with the information on the surrounding pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.