Electronic endoscope apparatus with CCD output circuit of positi

Details Electronic endoscope apparatus with CCD output circuit of positi Electronic endoscope apparatus with CCD output circuit of positi

1989-11-21

1990-12-18

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

35821315, A61B 104

Patent

active

049790358

ABSTRACT:
A charge detection circuit is capable of converting electrostatic charge quantities on a solid-state imaging chip into voltage signals of negative polarity. The voltage signals of the negative polarity are suppled to a DC-coupled polarity inversion circuit which inverts the polarity of the signals and amplifies the signals. In consequence, the generation of heat in the transistor of the outpout stage is reduced so as to suppress undesirable temperature rise of the solid-state imaging chip.

REFERENCES:
patent: 4814648 (1989-03-01), Hynecek
patent: 4867137 (1989-09-01), Takahashi

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