Circuit and method for vertically expanding a display image

Details Circuit and method for vertically expanding a display image Circuit and method for vertically expanding a display image

1995-12-28

1998-07-28

Saras, Steven J.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

348443, G09G 500

Patent

active

057868026

ABSTRACT:
A circuit and method for vertically expanding a display image in an image processing apparatus. The circuit includes a section for generating a signal for classifying a field of a color signal as an even field or an odd field; a multiplexer for multiplying lines of data output from a first memory and a second line memory by coefficients according to the signal for classifying the field as being an even field or an odd field; and a line of data output section for outputting a new line of data by adding the two lines of data corresponding to the lines of data output from a first memory and a second line memory.

REFERENCES:
patent: 5119082 (1992-06-01), Lumelsky et al.
patent: 5218436 (1993-06-01), Sugiyama et al.
patent: 5223928 (1993-06-01), Hamada
patent: 5450129 (1995-09-01), Matoba et al.
patent: 5488389 (1996-01-01), Nakanishi et al.

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