Method of doubling vertical line speed for HDTV camera and devic

Details Method of doubling vertical line speed for HDTV camera and devic Method of doubling vertical line speed for HDTV camera and devic

1997-07-25

2000-04-11

Garber, Wendy

Television

Camera, system and detail

With plural image scanning devices

348265, 348236, 348453, 358514, 358483, H04N 314

Patent

active

060493569

ABSTRACT:
A device and method of doubling a vertical line speed for a camera for domestic use, the method including the steps of a) writing G1 channel data output from a G1 CCD of a 4CCD for a period of 0.5H, where H is a horizontal sync period, and then reading the written G1 channel data at a speed twice a first writing speed, b) writing G2 channel data output from a G2 CCD of the 4CCD for a period of 0.5H, and then reading the written G2 channel data at a speed twice a second writing speed, and c) alternately selecting data read out by the steps a) and b), thereby outputting G signals of a broad-band. As a result, the line memory of 4H used in a device of doubling a line speed of a G channel signal can be reduced to 1H.

REFERENCES:
patent: 5436661 (1995-07-01), Yamamoto et al.
patent: 5576760 (1996-11-01), Akiyama
patent: 5640206 (1997-06-01), Kinoshita et al.
patent: 5657082 (1997-08-01), Harada et al.
patent: 5719633 (1998-02-01), Nishio et al.

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