Still image control in an electronic endoscope

Details Still image control in an electronic endoscope Still image control in an electronic endoscope

1992-02-12

1993-12-14

Powell, Mark R.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358167, H04N 521

Patent

active

052708101

ABSTRACT:
An electronic endoscope, having an electronic circuitry arranged to apply output signals of a solid-state image sensor to a processor, to store sequentially obtained picture data of a subject in an image memory means after predetermined signal processing, and to read out a plural number of picture data from the image memory means to produce simultaneous video signal, while providing a still image memory means parallel with the image memory means, along with a switch means for selectively supplying the signals from the image memory means or from the still image memory means as output signals. Further, the electronic circuitry includes a noise reducer incorporating a motion detector and located on the output side of the image memory means, and a still image control means adapted to detect deviations in color signal on the basis of output signals of the motion detector of the noise reducer and to renew the data in the still image memory means each time when no color deviation is detected in the picture signals from the solid-state image sensor.

REFERENCES:
patent: 4901143 (1990-02-01), Uehara et al.
patent: 4933757 (1990-06-01), Kanno et al.
patent: 4933758 (1990-06-01), Saito et al.
patent: 4933760 (1990-06-01), Yamashita et al.
patent: 5032913 (1991-07-01), Hattori et al.
patent: 5034888 (1991-07-01), Uehara et al.
patent: 5164824 (1992-11-01), Ieoka et al.

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