Video signal processing apparatus for performing magnification p

Details Video signal processing apparatus for performing magnification p Video signal processing apparatus for performing magnification p

1993-09-21

1995-03-07

Groody, James J.

Television

Image signal processing circuitry specific to television

Special effects

348452, 348383, 348561, H04N 5262

Patent

active

053962982

ABSTRACT:
A video signal processing apparatus includes an A/D converter for converting an analog video signal to a digital video signal. Also included is a 3-dimensional scanning line interpolating unit for outputting an original video signal and an interpolating signal which is synchronized with the original video signal and which includes interpolated scanning lines. A magnification processing unit and a switching signal generating unit are also provided. The switching signal generating unit is for generating a switching signal corresponding to a vertical magnifying power. Further, a switching unit is included for switching between the original video signal and the interpolated video signal according to the switching signal and for outputting the switched signal. The magnification processing unit includes a first field memory for storing the original video signal, a second field memory for storing the interpolating video signal, and a controller for programming the first and second field memories and for providing the programmed vertical magnifying power to a switching signal generating unit.

REFERENCES:
patent: 4400719 (1983-08-01), Powers
patent: 4679084 (1987-07-01), Topper et al.
patent: 4853765 (1989-08-01), Katsumata et al.
patent: 4868656 (1989-09-01), Geiger et al.
patent: 5029006 (1991-07-01), Katsumata et al.

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