Endoscope apparatus in which image pickup means and signal control means are connected to each other by signal transmitting means
First Claim
1. An endoscope apparatus comprising:
- an endoscope provided with an inserting section inserted into a lacuna;
image pickup means for image-picking-up an observing part within said lacuna; and
signal processing means for driving said image pickup means and for processing an image pickup signal from said image pickup means;
wherein said signal processing means comprises;
timing-pulse generating means for generating a timing pulse signal for processing said image pickup signal output from said image pickup means;
drive-signal generating means for generating a drive signal for driving said image pickup means without receiving an external timing control signal from other parts, said drive-signal generating means being independent of said timing pulse signal;
signal superimposing means for superimposing a control signal upon said drive signal supplied to said image pickup means, said superimposing means being generated from said drive-signal generating means;
separating and extracting means for separating and extracting said control signal from said image pickup signal output from said image pickup means,wherein said control signal is superimposed upon said drive signal; and
reference reset generating means separate from said drive-signal generating means for generating a reference reset signal for resetting timing pulse generating means for generating a timing pulse signal for processing said image pickup signal in response to an output from said separating and extracting means and said drive-signal generating means.
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Abstract
A detection signal of an image pickup device is inputted to a gate circuit to open the gate circuit by a gate signal from a drive-signal generating circuit during a period of time of a phase regulating signal section of a drive signal, to thereby output the detection signal during the period of time, to a reference reset generating circuit. The reference reset generating circuit generates a reference reset signal on the basis of the detection signal during a period of time of the inputted phase regulation signal section. The reference reset signal and a basic clock signal are inputted to a timing-pulse generating circuit for generating various kinds of timing pulses which are used in an image-pickup-signal processing circuit for processing in signal the image pickup signal.
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Citations
12 Claims
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1. An endoscope apparatus comprising:
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an endoscope provided with an inserting section inserted into a lacuna; image pickup means for image-picking-up an observing part within said lacuna; and signal processing means for driving said image pickup means and for processing an image pickup signal from said image pickup means; wherein said signal processing means comprises; timing-pulse generating means for generating a timing pulse signal for processing said image pickup signal output from said image pickup means; drive-signal generating means for generating a drive signal for driving said image pickup means without receiving an external timing control signal from other parts, said drive-signal generating means being independent of said timing pulse signal; signal superimposing means for superimposing a control signal upon said drive signal supplied to said image pickup means, said superimposing means being generated from said drive-signal generating means; separating and extracting means for separating and extracting said control signal from said image pickup signal output from said image pickup means, wherein said control signal is superimposed upon said drive signal; and reference reset generating means separate from said drive-signal generating means for generating a reference reset signal for resetting timing pulse generating means for generating a timing pulse signal for processing said image pickup signal in response to an output from said separating and extracting means and said drive-signal generating means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification