JP4493426B2 - Electronic endoscope system - Google Patents

Description

  The present invention relates to an electronic endoscope system, and more particularly, to an electronic endoscope system using a portable electronic endoscope that is integrally provided with a signal processing unit that performs signal processing on an imaging signal from an imaging unit.

  In recent years, electronic endoscope systems have been widely used in the medical field and industrial field. In these electronic endoscope systems, means for imaging with high resolution and high image quality is required even in a minute and complicated observation site.

  In general, an electronic endoscope system mainly includes an electronic endoscope, a camera control unit (hereinafter referred to as CCU) which is a signal processing means, and a monitor. In an electronic endoscope, an optical image of an observation site captured from an objective optical system provided at the distal end of an elongated insertion portion is electronically imaged by an imaging means having a solid-state imaging device typified by a CCD or CMOS. The The imaging signal output from the imaging means is input to a CCU provided outside the electronic endoscope, the image quality is adjusted by a video processing circuit inside the CCU, and output as a video signal. The video processing circuit is provided with parameter setting means so that the brightness and color tone of the video that the user can easily observe can be arbitrarily set. The video signal whose image quality has been adjusted by the CCU is output to the monitor, and an electronic image of the imaging region is displayed on the monitor.

  The electronic endoscope system as described above has a problem that the entire system becomes large because a CCU which is a signal processing device is required in addition to the electronic endoscope having the solid-state imaging device. . As a solution to this problem, electronic circuits that are normally built in a CCU, such as a driving circuit for a solid-state image sensor, a peripheral analog circuit, and a video digital circuit, are housed in a small package IC. A portable electronic endoscope system has been proposed in which the CCU is not required by being built in the portable electronic endoscope and the entire system is downsized (for example, Patent Document 1).

In the proposal, although the system is reduced in size, there is a problem that the function and performance are inferior to those of a conventional electronic endoscope system in which a CCU is provided outside the electronic endoscope. As a solution to this problem, the portable electronic endoscope system can be connected to an external CCU and used to improve video processing functions such as more detailed image quality adjustment, still image display, and image enlargement display. A stationary electronic endoscope system has been proposed (for example, Patent Document 2).
Japanese Patent Laying-Open No. 2002-291691 (FIG. 3) JP 2003-250758 A (FIG. 1)

  The electronic endoscope system needs to adjust and set various parameters such as brightness and hue in order to obtain an image that can be easily observed. In the above proposal, when the portable electronic endoscope system is used alone, and when the portable electronic endoscope system is connected to an external CCU and used as a stationary electronic endoscope system, It was necessary to adjust and set the parameters independently. Therefore, when setting the same image quality for the portable electronic endoscope system and the stationary electronic endoscope system, after setting the image quality of one system, the image quality of the other system must be set. In other words, there is a problem that it takes time and effort for the setting operation.

  Therefore, in the present invention, a portable electronic endoscope system that is integrally provided with a signal processing means that performs signal processing of an image pickup signal from the image pickup means is combined with an external signal processing means as a stationary electronic endoscope system. In addition, an object of the present invention is to provide an easy-to-operate electronic endoscope system in which parameters necessary for image quality adjustment can be easily set.

  An electronic endoscope system according to the present invention includes an imaging unit that images an observation site, and a first signal processing unit that generates a first video signal by performing signal processing on an imaging signal output from the imaging unit. A portable electronic endoscope comprising a first parameter setting means for setting first parameter data related to signal processing in the first signal processing means, and the portable electronic endoscope can be connected. And second signal processing means for generating a second video signal by performing signal processing on the input signal, and second parameter data for setting second parameter data related to signal processing in the second signal processing means. And a first parameter data of the first parameter setting means to the captured image processing apparatus or the second parameter of the second parameter setting means. The Tadeta and a transmitting means for transmitting to said portable electronic endoscope.

  It is possible to realize an electronic endoscope system with good operability in which parameters necessary for image quality adjustment can be easily set.

Embodiments of the present invention will be described below with reference to the drawings.
First, the overall configuration of the electronic endoscope system according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram schematically showing an overall configuration of an electronic endoscope system according to an embodiment of the present invention. As shown in FIG. 1, the electronic endoscope system according to the present embodiment is connected to the portable electronic endoscope 1 when the portable electronic endoscope 1 is used as a stationary electronic endoscope system. The portable electronic endoscope 1 that can be used as a CCU 2 that is an image processing apparatus that receives an imaging signal from the portable electronic endoscope 1 and performs image processing, and also as a stationary electronic endoscope system. Through the light source device 3 for supplying illumination light to the observation site and a monitor 4 for receiving a video signal from the portable electronic endoscope 1 or CCU 2 and displaying an image of the observation site.

  The portable electronic endoscope 1 is provided on an operation portion 11 that also serves as a gripping portion, an elongated and flexible insertion portion 12 that extends from the distal end side of the operation portion 11, and a side peripheral portion of the operation portion 11. And a lamp unit 14 that incorporates an illumination lamp for illuminating the observation site and is detachably attached to the operation unit 11 via the connection unit 13, and image quality adjustment parameter data (hereinafter referred to as “image data adjustment parameter data”). Remote controller 15 as a first parameter setting means for setting (also simply referred to as a parameter), and receiving section 16 provided on the side periphery of the operation section for receiving the image quality adjustment parameters set by the remote controller 15. And have.

  The CCU 2 has a switch 17 on the front panel as second parameter setting means for setting image quality adjustment and other internal functions. Similarly to the switch 17, the CCU 2 is also connected with a keyboard 18 as second parameter setting means for setting image quality adjustment and other internal functions. The CCU 2 is connected to the light source device 3 and the monitor 4 with a cable. A detachable ride guide cable 19 for guiding irradiation light from a lamp (not shown) installed in the apparatus to the distal end of the insertion portion 12 is attached to the side surface of the light source device 3.

  When used as a stationary electronic endoscope system, as shown in FIG. 2, the distal end side of the light guide cable 19 is attached to the connection portion 13 of the portable electronic endoscope 1, and the CCU 2 and the light source device 3 are connected to each other. The portable electronic endoscope 1 is connected via a light guide cable 19. FIG. 2 is a diagram illustrating a configuration when the electronic endoscope system according to the present embodiment is used as a stationary electronic endoscope system. When the electronic endoscope system according to the present embodiment is used as a portable electronic endoscope system, a cable extending from the side periphery of the operation unit 11 is connected to the monitor 4 as shown in FIG. The CCU 2 and the light source device 3 are not used.

  Here, the internal structures of the portable electronic endoscope 1 and the CCU 2 will be described with reference to FIG. FIG. 3 is a block diagram illustrating an electric circuit structure inside the electronic endoscope system. First, the internal structure of the portable electronic endoscope 1 will be described. As shown in FIG. 3, an objective lens (not shown) that transmits reflected light from the observation region and forms an optical image at the distal end of the insertion portion 12 and an optical image of the observation region are imaged and photoelectrically converted to obtain an image. A solid-state imaging device 21 as an imaging means such as a CCD or CMOS that generates a signal is disposed.

  The operation unit 11 includes a drive circuit 22 that drives the solid-state image pickup device 21, a CDS + A / D circuit 23 that removes noise from the analog image pickup signal output from the solid-state image pickup device 21 to generate a baseband, and digitizes the CDS + A / D circuit 23. A video processing circuit 24 as signal processing means for generating a digital video signal by performing image quality adjustment on the digitized imaging signal output from the / D circuit 23, and a digital output from the video processing circuit 24 And a D / A circuit 25 that converts the video signal into an analog video signal that can be displayed on the monitor 4.

  In addition, the operation unit 11 is an input unit as a communication unit for transmitting and receiving the image quality adjustment parameters managed by the CPU 26 and the CPU 26 that manages the image quality adjustment parameters used in the video processing circuit 24 to and from the CCU 2. An output I / F 27 is also included. The CPU 26 is electrically connected to the receiving unit 16 and receives and manages image quality adjustment parameters set by the remote controller 15. Furthermore, the operation unit 11 supplies light emitted from the power supply unit (not shown) or the illumination lamp for supplying power to the illumination lamp of the lamp unit 14, the solid-state imaging device 12, the video processing circuit 24, and the like. A light guide fiber (not shown) for transmitting to the tip is also provided.

  Next, the internal structure of the CCU 2 will be described. As shown in FIG. 3, the CCU 2 performs processing such as image quality adjustment and image enlargement on the digitized imaging signal output from the CDS + A / D circuit 23 of the portable electronic endoscope 1 to generate digital video. A video processing circuit 31 as an external signal processing means for generating a signal, and a D / A circuit 32 for converting the digital video signal output from the video processing circuit 31 into an analog video signal that can be displayed on the monitor 4 Have. In addition, the CCU 2 communicates with the CPU 33 that manages image quality adjustment parameters used in the video processing circuit 31 and the image quality adjustment parameters managed by the CPU 33 with the portable electronic endoscope 1. It also has an input / output I / F 34 as means.

  The CPU 33 is electrically connected to the switch 17 and the keyboard 18 for setting image quality adjustment and other internal functions, and manages the image quality adjustment parameters set by these. Furthermore, the CCU 2 converts the data output from the OSD circuit 35 for displaying the setting state of various parameters such as image quality adjustment parameters on the monitor 4 and the data output from the OSD circuit 35 into the digital video signal output from the video processing circuit 31. An addition circuit 36 for superimposing is also included.

  In addition, in the light guide cable 19 extended from the light source device 3, in addition to the fiber for guiding the irradiation light from the light source device 3 to the light guide fiber (not shown) of the portable electronic endoscope 1, CDS + A / D A signal line for transmitting the digitized imaging signal output from the circuit 23 to the video processing circuit 31 of the CCU 2 and a signal for transmitting the image quality adjustment parameters between the input / output I / Fs 27 and 34. The line also passes, and these signal lines are conducted, whereby the portable electronic endoscope 1 and the CCU 2 are electrically connected.

  The operation of the electronic endoscope system configured as described above will be described. First, the case where the electronic endoscope system of this embodiment is used as a portable electronic endoscope system will be described. When used as a portable electronic endoscope system, as shown in FIG. 1, a lamp unit 14 is attached to a connection portion 13 of the portable electronic endoscope 1, and an illumination lamp or a solid built in the lamp unit 14 is installed. It sets so that electric power may be supplied to each electric circuit in the operation unit 11 such as the imaging device 21 and the video processing circuit 24 from a power supply unit (not shown) of the operation unit 11.

  When the power switch (not shown) of the portable electronic endoscope 1 is switched to the ON state, the illumination lamp built in the lamp unit 14 is turned on, and the illumination light emitted from the illumination lamp passes through a light guide fiber (not shown), The observation site is irradiated from the distal end of the insertion portion 12. Reflected light from the observation site passes through an objective lens (not shown) and reaches the solid-state imaging device 21. The solid-state imaging device 21 is driven by a drive circuit 22 that is operable by being supplied with power from a power supply unit (not shown), and forms an optical image of an observation site projected from the objective lens to generate an analog imaging signal. To the CDS + A / D circuit 23. In the CDS + A / D circuit 23, noise is removed from the received analog imaging signal to form a baseband, and further digitized. The digitized imaging signal is output from the CDS + A / D circuit 23 to the video processing circuit 24.

  In the video processing circuit 24, image quality adjustment such as white balance, image brightness and hue, and enhancement is performed on the received digitized imaging signal, and a digital video signal is generated and output to the D / A circuit 25. The The image quality adjustment is performed based on the image quality adjustment parameters managed by the CPU 26. A method for setting the image quality adjustment parameter will be described in detail later. In the D / A circuit 25, the received digital video signal is converted into an analog video signal that can be displayed on the monitor 4 and output to the monitor 4. On the monitor 4, the received analog video signal is displayed, so that an image of the observation site is displayed. That is, when used as a portable electronic endoscope system, the image of the observation site is displayed on the monitor 4 by performing signal processing in the video processing circuit 24 inside the portable electronic endoscope 1 without using the CCU 2. be able to.

  Next, the case where the electronic endoscope system of the present embodiment is used as a stationary electronic endoscope system will be described. When used as a stationary electronic endoscope system, as shown in FIG. 2, the distal end side of the light guide cable 19 extended from the light source device 3 is attached to the connecting portion 13 of the portable electronic endoscope 1. The CCU 2 and the portable electronic endoscope 1 are set to be electrically connected via the light source device 3.

  When a power switch (not shown) of the portable electronic endoscope 1, the CCU 2, and the light source device 3 is switched to an ON state, an illumination lamp built in the light source device 3 is turned on, and the illumination light emitted from the illumination lamp is a light The guide cable 19 passes through a light guide fiber (not shown) in the portable electronic endoscope 1 and is irradiated from the distal end of the insertion portion 12 to the observation site. Reflected light from the observation site passes through an objective lens (not shown) and reaches the solid-state imaging device 21. The solid-state imaging device 21 is driven by a drive circuit 22 that is operable by being supplied with power from a power supply unit (not shown), and forms an optical image of an observation site projected from the objective lens to generate an analog imaging signal. To the CDS + A / D circuit 23. In the CDS + A / D circuit 23, noise is removed from the received analog imaging signal to form a baseband, and further digitized. When a power switch (not shown) of the CCU 2 is in an ON state, the digitized imaging signal is output from the CDS + A / D circuit 23 to the video processing circuit 31.

  The video processing circuit 31 performs image processing such as white balance, image brightness and hue, enhancement, image processing such as still image and image enlargement on the received digitized imaging signal, and the digital video signal. Is generated and output to the D / A circuit 32. The image quality adjustment is performed based on image quality adjustment parameters managed by the CPU 33. A method for setting the image quality adjustment parameter will be described in detail later. In the D / A circuit 32, the received digital video signal is converted into an analog video signal that can be displayed on the monitor 4 and output to the monitor 4. On the monitor 4, the received analog video signal is displayed, so that an image of the observation site is displayed. That is, when used as a stationary electronic endoscope system, signal processing is performed by the video processing circuit 31 of the CCU 2 without using the video processing circuit 24 provided in the operation unit 11 of the portable electronic endoscope 1. Is called. Since the image processing circuit 31 of the CCU 2 can perform more detailed image quality adjustment and image processing than the image processing circuit 24 of the portable electronic endoscope 1, the image quality of the image displayed on the monitor 4 is improved.

  Next, a method for setting image quality adjustment parameters for adjusting the image of the observation region displayed on the monitor 4 to an image quality that is easy to observe will be described. When image quality adjustment is performed while using the electronic endoscope system of the present embodiment as a portable electronic endoscope system, the image quality adjustment parameters are set using the remote controller 15. That is, the image quality adjustment parameter is determined by the user operating a button or a switch on the remote controller 15 and transmitted wirelessly to the receiving unit 16 of the portable electronic endoscope 1. The receiving unit 16 outputs the image quality adjustment parameter to the CPU 26, and the CPU 26 controls the video adjustment circuit 24 according to the received image quality adjustment parameter. When image quality adjustment is performed while using the electronic endoscope system of the present embodiment as a stationary electronic endoscope system, the image quality adjustment parameters are set using the switch 17 or the keyboard 18 provided in the CCU 2. That is, when the user operates the switch 17 or the keyboard 18, the image quality adjustment parameter is determined and output to the CPU 33 of the CCU 2. The CPU 33 controls the video adjustment circuit 31 according to the received image quality adjustment parameter.

  Both the image quality adjustment parameter set by the remote controller 15 adjusted by the portable electronic endoscope system and the image quality adjustment parameter set by the switch 17 or the keyboard 18 adjusted by the stationary electronic endoscope system. As common parameters included in the image, there are parameters relating to the color, tone, color density, and enhancement of the image. With respect to these common parameters, the CPU 26 and 33 perform image processing circuit so that the amount of change of the parameter and the image quality corresponding to the amount of change are equal between the portable electronic endoscope system and the stationary electronic endoscope system. 24 and 31 are controlled.

  For example, the same number of color matrices that change the color of the image, which is one of the common parameters, are prepared for each of the portable electronic endoscope system and the stationary electronic endoscope system. Each element of the color matrix is numbered, and if the same number is selected for the portable electronic endoscope system and the stationary electronic endoscope system, the color of the output image will be the same Is set to Also, for the parameter that changes the red color tone, which is one of the common parameters, a range in the same range such as -8 to +8 is prepared for the portable electronic endoscope system and the stationary electronic endoscope system. Has been. In the portable electronic endoscope system and the stationary electronic endoscope system, for example, when the same range such as +3 is selected, the red component of the output image is set to be emphasized to the same extent.

  The above-described image quality adjustment parameters are managed by the CPU 26 inside the portable electronic endoscope 1 or the CPU 33 inside the CCU 2. Here, the CPU 26 and the CPU 33 are electrically connected via the input / output I / Fs 27 and 34, and output the image quality adjustment parameters managed by one CPU to the other CPU. It can be replaced with the image quality adjustment parameters managed in. That is, the image quality adjustment parameters adjusted by the portable electronic endoscope system and managed by the CPU 26 are output to the CPU 33 via the input / output I / Fs 27 and 34, and the image quality adjustment parameters managed by the CPU 26 are output. Thus, the image quality adjustment parameter managed by the CPU 33 can be replaced, that is, updated, and the image quality adjustment parameter managed by the CPU 26 can be used as the image quality adjustment parameter of the stationary electronic endoscope system.

  Here, with reference to FIGS. 4 and 5, a specific procedure for using the image quality adjustment parameter adjusted by the portable electronic endoscope system as the image quality adjustment parameter of the stationary electronic endoscope system will be described. To do. FIG. 4 is a flowchart relating to a procedure for observing with a stationary electronic endoscope system using image quality adjustment parameters adjusted with a portable electronic endoscope system.

  First, in step S1, an image of an observation site is projected on the monitor 4 as a portable electronic endoscope system, and the user sets image quality adjustment parameters using the remote controller 15 while viewing the projected video. The set image quality adjustment parameters are transmitted to the CPU 26 via the receiving unit 16. Next, in step S <b> 2, the distal end side of the light guide cable 19 extended from the light source device 3 is attached to the connection portion 13 of the portable electronic endoscope 1, and the CCU 2 and the portable electronic endoscope are connected via the light source device 3. Setting is made so that the endoscope 1 is electrically connected, and a stationary electronic endoscope system is configured.

  Subsequently, in step S3, a menu screen as shown in FIG. 5 is displayed on the monitor 4, and the parameter capture button 41 is pressed. FIG. 5 is a diagram for explaining a parameter setting menu screen. The characters on the menu screen displayed on the monitor 4 are output when the OSD circuit 35 is controlled by the CPU 33. The output character data is superimposed on the digital video signal output from the video processing circuit 31 by the addition circuit 36 and output to the D / A circuit 32. When the parameter take-in button 41 is pressed, an instruction is issued from the CPU 33 to the CPU 26 via the input / output I / Fs 34 and 27 to output the parameters managed by the CPU 26 to the CPU 33.

  Then, in step S4, the image quality adjustment parameters set in step S1 managed by the CPU 26 are output, that is, transmitted to the CPU 33 via the input / output I / Fs 27 and 34. In the CPU 33, the image quality adjustment parameter received from the CPU 26 is displayed on the portable parameter display unit 42 of the parameter setting menu screen shown in FIG. The stationary parameter display unit 43 on the parameter setting menu screen displays the image quality adjustment parameters managed by the CPU 33 that are currently used in the stationary electronic endoscope system.

  Subsequently, when the parameter batch transfer button 44 on the parameter setting menu screen is pressed in step S5, the CPU 33 receives the image quality adjustment parameters used in the stationary electronic endoscope system from the CPU 26. The image quality adjustment parameters are replaced or updated by the image quality adjustment parameters set in step S1, and the replaced image quality adjustment parameters are displayed on the stationary parameter display section 43 of the parameter setting menu screen. Finally, in step S6, observation with a stationary electronic endoscope system is performed.

  As described above, the image quality adjustment parameters adjusted by the portable electronic endoscope system can be used not only as the image quality adjustment parameters of the stationary electronic endoscope system but also adjusted by the stationary electronic endoscope system. The image quality adjustment parameters managed by the CPU 33 are output to the CPU 26 via the input / output I / Fs 34 and 27, and the image quality adjustment parameters managed by the CPU 26 are replaced, so that the image quality of the portable electronic endoscope system is changed. It can also be used as an adjustment parameter. Therefore, in the CCU 2, the video processing circuit 31 can perform signal processing using the parameters received from the CPU 26.

  Here, a specific procedure for using the image quality adjustment parameter adjusted by the stationary electronic endoscope system as the image quality adjustment parameter of the portable electronic endoscope system will be described with reference to FIG. FIG. 6 is a flowchart regarding a procedure for observation with the portable electronic endoscope system using the image quality adjustment parameters adjusted with the stationary electronic endoscope system. First, in step S11, an image of an observation site is projected on the monitor 4 as a stationary electronic endoscope system, and the user sets image quality adjustment parameters using the switch 17 or the keyboard 18 while viewing the projected video. The set image quality adjustment parameters are transmitted to the CPU 33.

  Next, in step S12, a menu screen as shown in FIG. 5 is displayed on the monitor 4, and the image quality adjustment parameters set in step S11 are displayed on the stationary parameter display unit 43. Next, when the parameter batch transfer button 45 on the parameter setting menu screen is pressed in step S 13, the image quality adjustment parameters set in step S 11 and managed by the CPU 33 are input via the input / output I / Fs 34 and 27. The data is output or transmitted to the CPU 26 of the portable electronic endoscope 1. In the CPU 26, the image quality adjustment parameter managed until that time is replaced with the image quality adjustment parameter received from the CPU 33. Next, in step S14, the lamp unit 14 is attached to the connection portion 13 of the portable electronic endoscope 1 to constitute a portable electronic endoscope system. Therefore, in the portable electronic endoscope 1, the video processing circuit 24 can perform signal processing using the parameters received from the CPU 33. Finally, in step S15, observation with a portable electronic endoscope system is performed.

  As described above, in the electronic endoscope system of the present embodiment, by pressing the parameter batch transfer button 44 on the parameter setting menu screen displayed on the monitor 4, the image quality adjustment in the stationary electronic endoscope system is performed. The parameter can be set to the same value as the image quality adjustment parameter set in the portable electronic endoscope system, and by pressing the parameter batch transfer button 45 on the parameter setting menu screen displayed on the monitor 4 The image quality adjustment parameter of the portable electronic endoscope system can be set to the same value as the image quality adjustment parameter set in the stationary electronic endoscope system. In other words, the image quality adjustment parameter used in the portable electronic endoscope system and the image quality adjustment parameter used in the stationary electronic endoscope system can be collectively set to the same value. A highly efficient electronic endoscope system is realized. The user can perform the parameter setting operation easily and instantaneously, and the image quality of both is the same, so that the diagnosis and the like based on the endoscopic image can be performed smoothly.

  From the above embodiment, there is a feature in the points described in the following additional items.

(Additional Item 1) Imaging means for electronic imaging of an observation site;
Signal processing means for performing signal processing on the electrical signal output from the imaging means;
A portable electronic endoscope integrally including signal output means for outputting a standard TV signal generated by the signal processing means;
By connecting the portable electronic endoscope to an external device, a stationary electronic endoscope system provided with a signal processing means having a function added to the signal processing means,
Parameter setting means for setting parameters related to signal processing of the signal processing means are provided in the portable electronic endoscope and the stationary electronic endoscope system, respectively.
Input / output means for transmitting and receiving each parameter set in the signal processing means according to an input from the parameter setting means between the portable electronic endoscope and the stationary electronic endoscope system is provided. An electronic endoscope system characterized by this.

(Additional Item 2) An imaging step of electronically imaging an observation site;
A signal processing step for performing signal processing on the electrical signal output from the imaging step;
A portable electronic endoscope characterized by having a signal output step for outputting a standard TV signal generated by the signal processing step;
In the stationary electronic endoscope system, the signal processing step further includes a signal processing step by connecting the portable electronic endoscope to an external device.
Each of the portable electronic endoscope and the stationary electronic endoscope system has a parameter setting step for setting parameters related to signal processing in the signal processing step,
An input / output step for transmitting and receiving each parameter set in the signal processing step according to an input from the parameter setting step between the portable electronic endoscope and the stationary electronic endoscope system. An electronic endoscope system comprising:

1 is a diagram schematically showing an overall configuration of an electronic endoscope system according to an embodiment of the present invention. It is a figure explaining the structure in the case of using the electronic endoscope system of this Embodiment as a stationary type electronic endoscope system. It is a block diagram explaining the electric circuit structure inside an electronic endoscope system. It is a flowchart regarding the procedure of observing with a stationary electronic endoscope system using the image quality adjustment parameters adjusted with the portable electronic endoscope system. It is a figure explaining the menu screen for parameter setting. It is a flowchart regarding the procedure observed with a portable electronic endoscope system using the image quality adjustment parameter adjusted with the stationary electronic endoscope system.

Explanation of symbols

1 Portable electronic endoscope 2 CCU
16 Receiver 17 Switch 18 Keyboard 21 Solid-State Image Sensor 22 Drive Circuit 23 CDS + A / D Circuit 24, 31 Video Processing Circuit 25, 32 D / A Circuit 26, 33 CPU
27, 34 I / O I / F
Agent Patent Attorney Susumu Ito

Claims (3)

Imaging means for imaging an observation site, first signal processing means for generating a first video signal by performing signal processing on an imaging signal output from the imaging means, and a signal in the first signal processing means A portable electronic endoscope comprising: first parameter setting means for setting first parameter data related to processing;
The portable electronic endoscope can be connected, and a second signal processing unit that generates a second video signal by performing signal processing on an input signal, and signal processing in the second signal processing unit A video processing apparatus comprising: second parameter setting means for setting second parameter data concerned;
Transmission for transmitting the first parameter data of the first parameter setting means to the video processing apparatus or the second parameter data of the second parameter setting means to the portable electronic endoscope And an electronic endoscope system.   When the portable electronic endoscope is connected to the video processing device, the second signal processing means is replaced with the second parameter data replaced by the first parameter data received from the portable electronic endoscope. The electronic endoscope system according to claim 1, wherein the second video signal is generated by performing signal processing on the imaging signal output from the imaging unit using the parameter data. The first signal processing means uses the first parameter data replaced with the second parameter data received from the video processing device, and outputs a signal to the imaging signal output from the imaging means. 2. The electronic endoscope system according to claim 1, wherein the first video signal is generated by processing.

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