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 i

Abstract: An image sensor for a capsule type endoscope in which an image data is processed in frame units, the image sensor having analog and digital circuits, the image sensor includes a frame-puncturing unit for interrupting a power supply to the analog circuit at a predetermined frame among a plurality of frames. The image sensor may include a start delay unit for delaying a power supply to the analog circuit for a desired time.

Abstract: An apparatus for generating a focus data in an image sensor, the apparatus includes a green interpolation unit for generating a M×N green plane from the RGB bayer pattern of a predetermined selected image window through a green interpolation; and a focus data generation unit for extracting the focus data from the M×N green plane, wherein M and N are positive integers.

Abstract: An image sensor for a capsule type endoscope in which images are processed by a frame unit includes a control unit configured to generate a control signal to turn off a light emitting device installed out of the image sensor in every periodical frame among a plurality of frames.

Abstract: An image sensor for a capsule type endoscope in which an image data is processed in frame units, the image sensor having analog and digital circuits, the image sensor includes a frame-puncturing unit for interrupting a power supply to the analog circuit at a predetermined frame among a plurality of frames. The image sensor may include a start delay unit for delaying a power supply to the analog circuit for a desired time.

Abstract: A CMOS image sensor capable of auto focus control includes a sensing unit having a plurality of unit pixels for receiving an optical image of an external subject and outputting an electrical color signal of a corresponding pixel for each unit pixel, a control unit converting the electrical color signal from the sensing unit into a digital signal, processing the digital signal to output an image signal, and controlling the sensing unit, an auto focus (AF) algorithm unit receiving the image signal and calculating a focus value using an AF tracking algorithm, and an actuator control unit controlling an actuator using the focus value.

Abstract: An apparatus for generating a focus data in an image sensor, the apparatus includes a green interpolation unit for generating a M×N green plane from the RGB bayer pattern of a predetermined selected image window through a green interpolation; and a focus data generation unit for extracting the focus data from the M×N green plane, wherein M and N are positive integers.