Electronic endoscope system
First Claim
1. An electronic endoscope system, comprising:
- an elongated scope having a solid state image sensor provided at a distal end thereof, to generate image-pixel signals;
a video-signal processing unit, to which said elongated scope is detachably connected at a proximal end thereof, to produce a video signal on the basis of the image-pixel signals;
a monitor that reproduces an image in accordance with the video signal;
a displaying-size changer that changes a size of a displaying-area of the reproduced image on a screen of said monitor to another size;
a pointer-image generator that generates a pointer image on the screen of said monitor; and
a pointer-image controller that controls a shifting of said pointer image on the screen of said monitor, wherein said pointer image controller includes a pointer-image-position converter that converts a position of said pointer image on the screen of said monitor in accordance with the size change of the displaying-area of the reproduced image on the screen of said monitor, such that two positions, indicated by said pointer image on two-sized display-areas, correspond to each other.
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Accused Products
Abstract
In an electronic endoscope system, a flexible scope has a solid image sensor provided at a distal end thereof, to generate image-pixel signals. A proximal end of the scope is detachably connected to a video-signal processing unit, which produces a video signal based on the image-pixel signals. A monitor reproduces an image in accordance with the video signal. A displaying-size changer changes a size of a displaying-area of the image on a screen of the monitor to another size and vice versa. A pointer-image generator generates a pointer image on the monitor screen. A pointer-image controller controls a shifting of the pointer image on the monitor screen, and includes a pointer-image-position converter that converts a position of the pointer image on the monitor screen in accordance with the size-change of the displaying-area of the image on the monitor screen, such that two positions, indicated by the pointer image on the two-sized displaying-areas, correspond to each other.
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Citations
12 Claims
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1. An electronic endoscope system, comprising:
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an elongated scope having a solid state image sensor provided at a distal end thereof, to generate image-pixel signals;
a video-signal processing unit, to which said elongated scope is detachably connected at a proximal end thereof, to produce a video signal on the basis of the image-pixel signals;
a monitor that reproduces an image in accordance with the video signal;
a displaying-size changer that changes a size of a displaying-area of the reproduced image on a screen of said monitor to another size;
a pointer-image generator that generates a pointer image on the screen of said monitor; and
a pointer-image controller that controls a shifting of said pointer image on the screen of said monitor, wherein said pointer image controller includes a pointer-image-position converter that converts a position of said pointer image on the screen of said monitor in accordance with the size change of the displaying-area of the reproduced image on the screen of said monitor, such that two positions, indicated by said pointer image on two-sized display-areas, correspond to each other. - View Dependent Claims (2, 3, 4, 5, 6)
a two-dimensional coordinate system defined with respect to the screen of said monitor;
a two-dimensional coordinate generator that generates two-dimensional coordinates representing the position of said pointer image; and
a proportional position-converter that proportionally converts a set of two-dimensional coordinates, representing a position of said pointer image on one of the two-sized display-areas, into another set of two-dimensional coordinates, representing a corresponding position of said pointer image on another-sized display-area.
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5. An electronic endoscope system as set forth in claim 4, further comprising a shift limiter that limits a shifting of said pointer image within each of the two-sized display-areas.
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6. An electronic endoscope system as set forth in claim 5, wherein said shift limiter comprises a boundary converter that converts a two-dimensional limit range, corresponding to one of the two-sized display-areas, within which the shifting of said pointer image is limited, into another two-dimensional limit range, corresponding to another-sized display-area, within which the shifting of said pointer image is limited, in accordance with the size-change of the displaying-area of the reproduced image on the screen of said monitor.
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7. An electronic endoscope system, comprising:
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an elongated scope having a solid state image sensor provided at a distal end thereof, to generate image-pixel signals;
a video-signal processing unit, to which said elongated scope is detachably connected at a proximal end thereof, to produce a video signal on the basis of the image-pixel signals;
a monitor that reproduces an image in accordance with the video signal;
a displaying-size changer that changes a displaying-area of the reproduced image on a screen of said monitor between a first-sized displaying-area and a second-sized displaying-area;
a pointer-image generator that generates a pointer image on the screen of said monitor; and
a pointer-image controller that controls a shifting of said pointer image on the screen of said monitor, wherein said pointer image controller includes a pointer-image-position converter that converts a position of said pointer image on the screen of said monitor in accordance with the displaying-area change of the reproduced image on the screen of said monitor between said first-sized displaying-area and said second-sized displaying-area, such that a position, indicated by said pointer image on said first-sized displaying-area, corresponds to a position, indicated by said pointer image on said second-sized displaying area. - View Dependent Claims (8, 9, 10, 11, 12)
a two-dimensional coordinate system defined with respect to the screen of said monitor;
a two-dimensional coordinate generator that generates two-dimensional coordinates representing the position of said pointer image; and
a proportional position-convertor that proportionally converts a set of two-dimensional coordinates, representing a position of said pointer image on said first-sized displaying-area, into another set of two-dimensional coordinates, representing a corresponding position of said pointer image on said second-sized displaying-area.
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11. An electronic endoscope system as set forth in claim 10, further comprising a shift limiter that limits a shifting of said pointer image within each of said first-sized and second-sized displaying-areas.
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12. An electronic endoscope system as set forth in claim 11, wherein said shift limiter comprises a boundary converter that converts a two-dimensional limit range, corresponding to said first-sized displaying-area, within which the shifting of said pointer image is limited, into another two-dimensional limit range, corresponding to said second-sized displaying-areas, within which the shifting of said pointer image is limited, in accordance with the displaying-area change of the reproduced image on the screen of said monitor between said first-sized displaying-area and said second-sized displaying-area.
Specification