Apparatus for improving sharpness when recording continuous-tone

Details Apparatus for improving sharpness when recording continuous-tone Apparatus for improving sharpness when recording continuous-tone

1974-10-24

1977-10-18

Martin, John C.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 75, H04N 140, H04N 146

Patent

active

040549160

ABSTRACT:
Improved sharpness is obtained in an arrangement for recording continuous-tone pictures in which electro-optic picture scanning apparatus produces picture signals which are applied to an electro-optic recorder to reproduce the picture on a recording medium. Circuits for generating a sharpness signal and for modulating the sharpness signal in dependence upon the picture content of at least a portion of the picture pattern are provided. The modulated sharpness signal is then superimposed on the picture signals to influence the sharpness of pictures recorded by the recorder.

REFERENCES:
patent: 2606245 (1952-08-01), Hall
patent: 2691696 (1954-10-01), Yule
patent: 2865984 (1958-12-01), Moe
patent: 2892887 (1959-06-01), Hell
patent: 2962548 (1960-11-01), Taudt
patent: 3017515 (1962-01-01), Welch
patent: 3275741 (1966-09-01), Hughes et al.
patent: 3381612 (1968-05-01), Lecha
patent: 3450830 (1969-06-01), Kyte
patent: 3588322 (1971-06-01), Bartel et al.
patent: 3801736 (1974-04-01), Kesaka et al.
patent: 4005475 (1977-01-01), Knop

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