Capsule type endoscope and method for fabricating the same
First Claim
1. A capsule-type endoscope for use in a human body, wherein the capsule-type endoscope comprises:
- a light-emitting device configured to be;
turned on during capture of an effective image frame and a punctured image frame; and
turned off to create an aphotic state during capture of a dark image frame;
a plurality of pixels configured to capture light and to convert the light into an analog image signal;
an analog circuit configured to filter the analog image signal and configured to be;
turned on during capture of the dark image frame and the effective image frame; and
turned off during capture of the punctured image frame;
an analog-to-digital converting circuit configured to convert the analog image signal into a digital image signal; and
a digital circuit configured to receive the digital image signal and to switch the light-emitting device on and off;
wherein the analog image signal includes information corresponding to each of the plurality of pixels; and
wherein the digital image signal includes information corresponding to each of the plurality of pixels.
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0 Petitions
Accused Products
Abstract
An image sensing system includes: a light emitting device; a pixel configured to capture an optical signal and to convert the optical signal into an analog image signal; an analog circuit configured to selectively filter the analog image signal; an analog-to-digital converting circuit configured to convert the analog image signal to a digital image signal; a digital circuit configured to receive the digital image signal and to switch the light emitting device on and off; wherein the digital image signal includes a dark image frame if the optical signal is captured when the light emitting device is off; wherein the digital image signal includes an effective image frame if the optical signal is captured when the light emitting device is on and the analog circuit is configured to filter the analog image signal; and wherein the digital image signal includes a punctured image frame if the optical signal is captured when the light emitting device is on and the analog circuit is not configured to filter the analog image signal.
17 Citations
17 Claims
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1. A capsule-type endoscope for use in a human body, wherein the capsule-type endoscope comprises:
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a light-emitting device configured to be; turned on during capture of an effective image frame and a punctured image frame; and turned off to create an aphotic state during capture of a dark image frame; a plurality of pixels configured to capture light and to convert the light into an analog image signal; an analog circuit configured to filter the analog image signal and configured to be; turned on during capture of the dark image frame and the effective image frame; and turned off during capture of the punctured image frame; an analog-to-digital converting circuit configured to convert the analog image signal into a digital image signal; and a digital circuit configured to receive the digital image signal and to switch the light-emitting device on and off; wherein the analog image signal includes information corresponding to each of the plurality of pixels; and wherein the digital image signal includes information corresponding to each of the plurality of pixels. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for sensing an image, the method comprising:
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turning an analog circuit on and off to selectively filter image data by filtering electrical analog image signals received from a pixel; generating a dark image frame by capturing image data in an aphotic state; generating an effective image frame by capturing image data in a photic state and by filtering the image data when the analog circuit is turned on; and generating a punctured image frame by capturing image data in the photic state when the analog circuit is turned off. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An image sensing system comprising:
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a light-emitting device configured to be; turned on during capture of an effective image frame and a punctured image frame; and turned off during capture of a dark image frame; a plurality of pixels configured to capture light and to convert the light into an analog image signal; an analog circuit configured to filter the analog image signal and configured to be; turned on during capture of the dark image frame and the effective image frame; and turned off during capture of the punctured image frame; an analog-to-digital converting circuit configured to convert the analog image signal into a digital image signal; a digital circuit configured to receive the digital image signal and to switch the light-emitting device on and off; and an endoscopic capsule encapsulating the light-emitting device, the plurality of pixels, the analog circuit, the analog-to-digital converting circuit, and the digital circuit; wherein the analog image signal includes information corresponding to each of the plurality of pixels; and wherein the digital image signal includes information corresponding to each of the plurality of pixels. - View Dependent Claims (14, 15, 16, 17)
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Specification