Television – Camera – system and detail – Combined image signal generator and general image signal...
Patent
1994-05-18
1995-08-08
Groody, James J.
Television
Camera, system and detail
Combined image signal generator and general image signal...
348 70, 348 71, H04N 964
Patent
active
054403413
ABSTRACT:
A simultaneous electronic endoscope apparatus which is capable of preventing the deterioration of the picture quality due to the difference of the saturation property in mixture signals. The apparatus comprises a charge coupled device provided with a plurality of color filters. Upper and lower pixel signals are mixed in a charge coupled device so as to form mixture signals. When the saturated state of a mixture signal is detected, the gain of the mixture signal is multiplied by a preset coefficient so as to apparently cancel the saturated state. Alternatively two types of luminance signals may be formed by combining the plurality of mixture signals formed on each horizontal scanning line. When the saturated state of a luminance signal is detected, the gain of the luminance signal is amplified so that the level thereof is the same as that of the other luminance signal, thereby apparently cancelling the saturated state.
REFERENCES:
patent: 4754323 (1988-06-01), Kaji et al.
patent: 5032913 (1991-07-01), Hattori et al.
patent: 5144399 (1992-09-01), Nakayama et al.
Okada Fujio
Suzuki Shigeo
Burgess Glenton B.
Fuji Photo Optical Co., Ltd.
Groody James J.
Snider Ronald R.
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