CCD imaging system with two extended horizontal registers

Details CCD imaging system with two extended horizontal registers CCD imaging system with two extended horizontal registers

1994-05-05

1995-01-24

Mancuso, Joseph

Television

Camera, system and detail

Combined image signal generator and general image signal...

348311, H04N 5335

Patent

active

053845960

ABSTRACT:
In order to prevent a horizontal stripe and a flicker from taking place due to a gain difference between two circuit systems (channels), the solid state imager of the present invention includes a pilot signal generating means provided within a solid state image pickup element for allowing two output units to generate pilot signals of the same level and a gain correcting circuit provided outside of said solid state image pickup element for comparing levels of the pilot signals passed through the two circuit systems and correcting a gain of one circuit system if the two pilot signals have a level difference therebetween. Further, in a solid state imager of the present invention, a pilot signal for detecting gains of two circuit systems which process signals from two output units of a solid state image pickup element is inserted into a video signal without modifying the rule with respect to the signal timing so that signal charges are supplied from a pilot signal generating means to respective horizontal registers so as to output the pilot signal during the dummy bit output period.

REFERENCES:
patent: 4660090 (1987-04-01), Hynecek
patent: 4675887 (1987-06-01), Akiyama et al.
patent: 4750042 (1988-06-01), Murayama et al.
patent: 5025318 (1991-06-01), Nagura
patent: 5038215 (1991-08-01), Hadfield
patent: 5040071 (1991-08-01), Stevens

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