[특허]Electronic endoscope apparatus with signal validity monitor

Electronic endoscope apparatus with signal validity monitor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-001/04 A61B-001/06
출원번호	US-0082508 (1993-06-25)
우선권정보	JP-0012199 (1991-02-01); JP-0247770 (1991-09-26)
발명자 / 주소	Sasaki Masahiko (Hachioji JPX) Uehara Masao (Hachioji JPX) Saito Katsuyuki (Kokubunji JPX) Uchikubo Akinobu (Ome JPX) Yamashita Shinji (Hachioji JPX) Nakagawa Takehiro (Hachioji JPX) Miyashita Akihir
출원인 / 주소	Olympus Optical Co., Ltd. (Tokyo JPX 03)
인용정보	피인용 횟수 : 85 인용 특허 : 0

초록 ▼

In an electronic endoscope apparatus each of the signals of a plurality of systems output from at least one solid state imaging device is judged by a signal monitoring device as to whether it is normal or not. On the basis of the judged result, the processing mode corresponding to each of the signals of the plurality of systems is changed and each signal is processed. If an abnormality occurs, an observed image with which the endoscope inspection can continue will be secured to be safe. Further, in the electronic endoscope apparatus, when the output signal from the solid state imaging device is judged to be abnormal, the amount of illuminating light will be attenuated, the danger by the excessive amount of illuminating light will be avoided and the safety of the person being monitored will be secured.

대표청구항 ▼

An electronic endoscope apparatus comprising: an imaging means for outputting a plurality of systems of signals from at least one solid state imaging device, said systems of signals including a first signal and a second signal; a plurality of signal transmitting means for transmitting said plurality of systems of signals output from said at least one solid state imaging device of said imaging means; a signal processing means for processing in corresponding processing modes the respective signals transmitted by said plurality of signal transmitting means, wherein said signal processing means comprises at least one pair of first and second correlated double sampling circuits corresponding to the respective first and second signals of said plurality of systems of signals; a signal monitoring means for judging whether the respective first and second signals transmitted by said plurality of signal transmitting means are normal or not and outputting a signal for changing the processing mode of said signal processing means on the basis of the judged result; wherein said signal processing means further comprises: a signal selecting circuit selecting one of said plurality of systems of signals in response to the output from said signal monitoring means; a carrier extracting circuit extracting a carrier component from the output signal of said signal selecting circuit; a sampling clock producing circuit producing a sampling clock of said plurality of correlated double sampling circuits by the output signal of said carrier extracting circuit; and a synthesizing circuit synthesizing the output signals of said plurality of correlated double sampling circuits on the basis of the output of said signal monitoring means.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Electronic endoscope apparatus with signal validity monitor 원문보기

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연구과제 타임라인

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Electronic endoscope apparatus with signal validity monitor 원문보기

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이 특허를 인용한 특허 (85)

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