Output correcting system for facsimile

Details Output correcting system for facsimile Output correcting system for facsimile

1978-08-22

1980-10-14

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

3401463H, 358213, 358282, H04N 140

Patent

active

042284686

ABSTRACT:
An optical image reading apparatus comprises a solid state image sensor having a plurality of blocks, means for generating video signals correponding to an object to be read out by the solid state image sensor, means for determining respective mean values of the video signals concerning the blocks, means for storing the mean values in digital information, means for reading out the stored mean value and converting the digital information to analog information, and means for determining a corrected slice level in each of the blocks.

REFERENCES:
patent: 3949162 (1976-04-01), Malueg
patent: 4128830 (1978-12-01), Weythman
patent: 4129853 (1978-12-01), Althauser

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