Television – Camera – system and detail – With plural image scanning devices
Patent
1995-12-14
1997-08-26
Hsia, Sherrie
Television
Camera, system and detail
With plural image scanning devices
348234, 348235, 348264, 348265, H04N 909
Patent
active
056615221
ABSTRACT:
Each solid image pick-up element of G, R and B channels has a light-receiving portion composed of light-receiving pixels arranged two-dimensionally, that is, in the horizontal and the vertical scanning directions. The light-receiving pixels of the second and the third solid image pick-up elements are shifted to a horizontal direction by a half of a horizontal interval between the adjacent pixels with respect to the light-receiving pixels of the first solid image pick-up element in the horizontal scanning direction. The output of the first solid image pick-up element is sampled at every predetermined period so that the video signal of the G channel is obtained. The output of the second and the third solid image pick-up elements are sampled at every predetermined period to obtain the video signals of the R and the B channels so that the video signals are out of phase by 180 degrees with respect to the video signal of the G channel. The matrix operation is executed for the read video signals of the G, R and B channels to produce a first luminance signal. The video signals of the G and R channels are alternately switched with a period of half of that of the sampling frequency in a switching section. The output of the switching section is added to the first luminance signal to produce a second luminance signal. The resulting signal is output as the luminance signal of the TV camera.
REFERENCES:
patent: 4069501 (1978-01-01), Yamanaka
patent: 4725881 (1988-02-01), Buchwald
patent: 5442394 (1995-08-01), Lee
Hitachi Denshi Kabushiki Kaisha
Hsia Sherrie
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