A video printer having color signal interpolation circuit

Details A video printer having color signal interpolation circuit A video printer having color signal interpolation circuit

1986-05-05

1988-03-29

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 78, 358 44, H04N 146

Patent

active

047347597

ABSTRACT:
A video printer having color signal interpolation circuit including a first memory which stores a color signal requiring the largest amount of information among signal of three primary colors in a video signal, a second memory which stores both of the other two color signals sampled alternately, and a data interpolation circuit with a signal edge detecting part and signal level detecting part and which reproduces the other two color signals on the basis of the signals stored in the second memory by interpolation. Color signals delivered from the first memory and the data interpolation circuit are successively sent to the printer so as to be printed.

REFERENCES:
patent: 4176373 (1979-11-01), Dillon et al.
patent: 4490738 (1984-12-01), Asaida
patent: 4605956 (1986-08-01), Cok
patent: 4642678 (1987-02-01), Cok

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