Processor for electronic endoscope and electronic endoscope apparatus

摘要

A processor for an electronic endoscope includes first and second image storing units and a controller, which in a first mode, image data is converted sequentially into a video signal and is outputted while being stored sequentially in the first and second image storing units. In a second mode, image data stored in the first image storing unit is outputted while generated image data is sequentially stored in the second image storing unit. In a third mode, image data stored in the second image storing unit is outputted while generated image data is sequentially stored in the first image storing unit. In the second and third modes, it is possible to switch between a first playback mode that continuously outputs the multiple stored image data and a second playback mode that repeatedly outputs one of the multiple stored image data.

主权项

1. A processor for an electronic endoscope for processing an image signal from the electronic endoscope and displaying an image on a monitor, comprising:
an image data generator that generates a plurality of frames of image data from the image signal; first and second image storages, each of which stores the plurality of frames of image data; a signal processor that converts the plurality of frames of image data into a video signal which is displayed on the monitor; and a controller that controls the signal processor and the first and second image storages, wherein the controller performs control according to one of: a first mode, in which the plurality of frames of image data generated by the image data generator are sequentially converted into the video signal and are outputted, and are sequentially stored in the first and second image data storages; a second mode, in which the plurality of frames of image data stored in the first image storage are converted into the video signal and are outputted, and the plurality of frames of image data generated by the image data generator are sequentially stored in the second image storage; and a third mode, in which the plurality of frames of image data stored in the second image storage are converted into the video signal and are outputted, and the plurality of frames of image data generated by the image data generator are sequentially stored in the first image storage, wherein: in the second mode, a first reproduction mode and a second reproduction mode are switched from one to another, wherein, in the first reproduction mode, the plurality of frames of image data stored in the first image storage are successively converted into the video signal and are outputted, and, in the second reproduction mode, one of the plurality of frames of image data stored in the first image storage is repeatedly converted into the video signal and is outputted; and in the third mode, the first reproduction mode and the second reproduction mode are switched from one to another, wherein, in the first reproduction mode, plurality of frames of image data stored in the second mage storage are successively converted into the video signal and are outputted, and, in the second reproduction mode, one of the plurality of frames of image data stored in the second image storage is repeatedly converted into the video signal and is outputted; the processor for an electronic endoscope further comprising: a judger that receives an input of a control signal for switching from the first mode to the second or the third mode and for switching from the third mode or second mode to the first mode, and makes a judgment on which of the second mode and the third mode the controller switches to, when the control signal is inputted in the first mode, wherein the controller switches from the second mode to the first mode, when the control signal is inputted in the second mode, wherein, in response to the controller switching from the second mode to the first mode, the judger makes a judgment to switch from the first mode to the third mode only when the control signal is inputted within a predetermined time from a time when the controller switches from the second mode to the first mode, and makes a judgment to return from the first mode to the second mode when the control signal is inputted after the predetermined time has passed from the time when the controller switches from the second mode to the first mode, wherein the predetermined time is determined based on a maximum number of frames of image data which can be stored in the first image storage.