Electromagnetic noise preventive means for an endscope with soli

Details Electromagnetic noise preventive means for an endscope with soli Electromagnetic noise preventive means for an endscope with soli

1984-09-05

1986-10-21

Britton, Howard

Facsimile and static presentation processing

Static presentation processing

Attribute control

128 4, 12830315, 358167, A61B 104, A61B 1739

Patent

active

046188851

ABSTRACT:
In this invention, the spectral structure of the high-frequency current generated by the cauterizing power circuit for high-frequency incision and excision tools is set in the frequency interleave relationship with the comb-shaped spectral structure inherent in the picture signal formed by the solid pickup element, when an affected part of a subject is collected using the high-frequency incision and excision tools together with an endoscope with the solid pickup element. The picture signal, output form the solid pickup element, is supplied to the display unit via a comb line with the characteristics to meet its spectral structure to become the signal without the spectrum component (noise) caused by the high-frequency current from the said cauterizing power circuit.

REFERENCES:
patent: 3984629 (1976-10-01), Gorog
patent: 4051516 (1977-09-01), Weston
patent: 4487489 (1984-12-01), Takamatsu
patent: 4517976 (1985-05-01), Murakoshi
patent: 4519391 (1985-05-01), Murakoshi

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