JP3241783B2 - Ultrasound diagnostic equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic diagnostic apparatus to which an image recording / reproducing apparatus such as a VTR (video tape recorder) can be connected.

[0002]

2. Description of the Related Art In general, an ultrasonic diagnostic apparatus can make a diagnosis by irradiating an ultrasonic wave to a human body and displaying the reflected ultrasonic wave. When a diagnosis is performed using this ultrasonic diagnostic apparatus, the diagnosis can be performed by displaying the image while taking the image during the diagnosis, but the diagnosis image is temporarily recorded on an image recording / reproducing apparatus such as a VTR. It is also possible to make a diagnosis after switching to a displayed image by reproducing the image later.

Such an image recording / reproducing apparatus includes a video signal output terminal 31 and a video signal output via a video signal output terminal 31, as in a commercial VTR shown in FIG. The synchronization signal output terminal 32 and the commercial V
A control terminal 33 for inputting a control signal such as a reproduction mode to the TR, and a composite video output terminal 34 having a video signal and a synchronization signal as in a home VTR shown in FIG. Are known.

When reproducing and displaying a recorded image in an ultrasonic diagnostic apparatus to which a recording and reproducing apparatus such as a commercial VTR shown in FIG. 10A can be connected, the diagnostic apparatus is set to a reproducing mode. Then, the recording / reproducing device is set to the reproducing mode from the diagnostic device via the control terminal 33 of the recording / reproducing device. In an ultrasonic diagnostic apparatus to which a recording / reproducing apparatus such as a home VTR shown in FIG. 10B can be connected, an operation of setting the recording / reproducing apparatus and the diagnostic apparatus to the reproducing mode separately is performed.

[0005]

However, FIG.
In an ultrasonic diagnostic apparatus to which an image recording / reproducing device such as a commercial VTR shown in FIG. 1A can be connected, the recording / reproducing device requires a dedicated control terminal 33. For example, a dedicated control terminal such as a home VTR is used. A recording / reproducing device without a terminal cannot be connected, and thus there is a problem that the connectable recording / reproducing devices are limited. The method of separately setting the diagnostic device and the recording / reproducing device in the reproducing mode can solve the above problem, but has a problem that the operation is troublesome.

In view of the above-mentioned conventional problems, the present invention connects a recording / reproducing apparatus which is not provided with a dedicated control terminal, such as a home VTR, and can easily convert an image recorded on the recording / reproducing apparatus. It is an object to provide an ultrasonic diagnostic apparatus that can be reproduced by operation.

[0007]

As shown in FIG. 1A, the principle of the present invention is to provide an ultrasonic diagnostic apparatus to which a recording / reproducing apparatus 2 capable of recording and reproducing a video signal 1 can be connected. Display means 3 for displaying an image captured by ultrasonic imaging
Selecting means 4 for selecting an ultrasonic imaged video signal 1 or an output signal of the recording / reproducing apparatus 2 and outputting the selected signal to the display means 3; The output signals are compared, and if they match, the selection means 4 selects the ultrasonically imaged video signal 1, and if they do not match, the selection means 4 selects the output signal of the recording / reproducing device 2. And an image signal comparing means 5 for performing the operation.

FIG. 1 is a diagram illustrating the principle of the present invention.
As shown in (b), in an ultrasonic diagnostic apparatus to which a recording / reproducing apparatus 2 capable of recording / reproducing a video signal 1 can be connected, a display means 3 for displaying an ultrasonic image is provided; Selecting means 4 for selecting the output video signal 1 or the output signal of the recording / reproducing apparatus 2 and outputting the selected signal to the display means 3; and synchronizing signal separation for separating the synchronizing signal of the video signal reproduced by the recording / reproducing apparatus 2. Means 6, a synchronizing signal 1 of a video signal obtained by ultrasonic imaging, and the synchronizing signal separating means 6
The synchronizing signals separated by are compared with each other, and when they match, the selecting means 4 selects the video signal 1 captured by ultrasonic imaging,
If they do not match, the selecting means 4
And a synchronizing signal comparing means 7 for controlling the selection of the output signal.

[0009]

The recording / reproducing apparatus 2 outputs the input signal as it is in a state other than the reproducing state, and outputs the reproducing signal in the reproducing state. Therefore, when the recording / reproducing device 2 is set to the reproducing mode, in the invention shown in FIG. 1A, the video signal 1 obtained by ultrasonic imaging does not match the output signal of the recording / reproducing device 2, so that the recording / reproducing device 2 The output signal of device 2 is selected,
In the invention shown in FIG. 1 (b), the output signal of the recording / reproducing apparatus 2 is selected because the synchronization signal of the video signal 1 captured by the ultrasonic imaging does not match the synchronization signal separated by the synchronization signal separation means 6. You.

Therefore, when the recording / reproducing device 2 such as a home VTR is connected, the image recorded on the recording / reproducing device can be reproduced by a simple operation only by setting the recording / reproducing device 2 to the reproducing mode. it can.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing a main part of one embodiment of the ultrasonic diagnostic apparatus according to the present invention. FIG. 3 is a waveform diagram showing main signals when the recording / reproducing apparatus of FIG. 2 is in a state other than the reproducing state.
FIG. 4 is a waveform diagram showing main signals when the recording / reproducing apparatus of FIG. 2 is in a reproducing state.

In FIG. 2, signals imaged by an ultrasonic imaging device (not shown) are converted by an image processing circuit 11 into image signals suitable for a display monitor 13 of the diagnostic device and an external recording / reproducing device 14, respectively. You. Then, an image signal suitable for the display monitor 13 is output to the image selection circuit 12, while an image signal a suitable for the recording / reproduction device 14 is output to the recording / reproduction device 14 and the signal comparison circuit 15. Here, the recording / reproducing apparatus 14 is a general household VTR.
As described above, a composite video signal is input / output, an input signal is output as it is in a state other than the reproduction state, and a reproduction signal is output only in the reproduction state.

When the recording / reproducing device 14 is set to the reproducing mode, the reproduced signal b is converted by the decoder 16 into an image signal suitable for the diagnostic device. As shown in (5), the image signal a converted by the image processing circuit 11 is compared with the signal b reproduced from the recording / reproducing device 14, and the image selection circuit 12 is controlled by the control signal c.

In this case, when the recording / reproducing apparatus 14 is in a state other than the reproducing state such as a recording state, the input signal a is output as it is, so that the signals become the same as shown in FIG. , The image selection circuit 12 is controlled to select an image signal obtained by ultrasonic imaging. Therefore, this image signal is output to the display monitor 13 via the image selection circuit 12, so that the doctor can perform a diagnosis while viewing the image being captured.

On the other hand, when the recording / reproducing device 14 is set to the reproducing mode and the reproduced signal b is output, the image signal a converted by the image processing circuit 11 and the reproduced signal are reproduced from the recording / reproducing device 14 as shown in FIG. Signal b differs, the signal comparison circuit 15 determines that the image selection circuit 12
4 to select the reproduced signal b. Therefore, according to this embodiment, when the system of the image signal interface, that is, the output signal of the image processing circuit 11 and the input signal of the decoding circuit 16 match the input / output signal of the recording / reproducing device 14, it is like a home VTR. An image recording / reproducing apparatus 14 having only a composite video signal input / output terminal can be connected to the apparatus, and an image recorded on the recording / reproducing apparatus 14 can be displayed by setting only the recording / reproducing apparatus 14 to the reproducing mode. Since the image can be reproduced on the screen of the monitor 13, the image can be reproduced by a simple operation.

Next, a second embodiment will be described with reference to FIGS. 5 is a block diagram showing a second embodiment, FIG. 6 is a waveform diagram showing main signals when the recording / reproducing apparatus of FIG. 5 is in a state other than the reproducing state, and FIG. 7 is a recording / reproducing apparatus of FIG. FIG. 4 is a waveform diagram showing main signals when is in a reproduction state. First, the signal imaged by the ultrasonic imaging device is converted by the image processing circuit 11 into image signals suitable for the display monitor 13 of the diagnostic device and the external image recording / reproducing device 14, respectively. The image signal is output to the image selection circuit 12, while the recording / reproducing device 14
Is output from the recording / reproducing device 14.

Then, as shown in FIGS. 6 and 7, the signal comparison circuit 15a outputs the synchronization signal d from the synchronization generation circuit 17.
And the synchronization signal e from the synchronization separation circuit 18, and controls the image selection circuit 12 by the control signal f. Note that the recording / reproducing apparatus 14 inputs and outputs a composite video signal, outputs the input signal as it is in a state other than the reproducing state, and outputs the reproducing signal only in the reproducing state, as in the first embodiment. It is configured.

The reproduction signal b of the recording / reproduction device 14 is
The decoder 16 converts the image signal into an image signal suitable for the diagnostic device and outputs the image signal to the image selection circuit 12, and the synchronization separation circuit 18 separates the synchronization signal b of the composite video signal. In this case, when the recording / reproducing device 14 is in a state other than the reproducing state, the input signal a is output as it is, so that the synchronizing signals d and e become the same as shown in FIG. Is controlled to select an image signal obtained by ultrasonic imaging. Therefore, this image signal is output to the display monitor 13 via the image selection circuit 12, so that the doctor can perform a diagnosis while viewing the image being captured.

On the other hand, when the image recording / reproducing apparatus 14 is set to the reproducing mode and the reproduced signal b is output, the synchronizing signals d and e are different as shown in FIG.
Controls the image selection circuit 12 to select the signal b reproduced from the image recording / reproduction device 14. Therefore,
Similarly, in this embodiment, an image recording / reproducing apparatus 1 having only a composite video signal input / output terminal like a home VTR is used.
4 and the image recording / reproducing device 14
By setting only the playback mode to the playback mode, the image recorded in the recording / playback device 14 can be played back on the screen of the display monitor 13, so that playback can be performed by a simple operation.

In this embodiment, the signal comparison circuit 15
a, the input / output terminal of the synchronizing signal is provided and connected to the signal comparing circuit 15a, so that the recording / reproducing apparatus 14 has the business-use VT shown in FIG.
As in R, a recording / reproducing apparatus having a synchronization signal output terminal 32 for a video signal output via the video signal output terminal 32 in addition to the video signal output terminal 31 can be connected. The input terminal of the synchronization signal and the synchronization separation circuit 18
By switching the respective outputs, both types of devices can be selectively connected.

FIG. 8 is a block diagram showing a third embodiment. First, the signal imaged by the ultrasonic imaging device is converted by the image processing circuit 11 into image signals suitable for the display monitor 13 of the diagnostic device and the external image recording / reproducing device 14, respectively. The image signal is output to the image selection circuit 12, while the recording / reproducing device 14
Are output to the code adding circuit 20.

The code generation circuit 19 generates code data that changes with time, such as, for example, the date and time. The code addition circuit 20 adds this code data to, for example, a vertical blanking period of the image signal, and records it. Playback device 14
Output to The signal reproduced by the image recording / reproducing device 14 is converted by the decoder 16 into an image signal suitable for the diagnostic device and output to the image selecting circuit 12, and the code in the reproduced signal is converted by the code detecting circuit 2.
1 is detected.

In such a configuration, when the image recording / reproducing apparatus 14 is in a state other than the reproducing state, the input signal is output as it is, so that the code generated by the code generating circuit 19 and the code detected by the code detecting circuit 21 are the same. , And the signal comparison circuit 15b controls the image selection circuit 12 to select an image signal obtained by ultrasonic imaging. Also,
When the recording / reproducing device 14 is set to the reproducing mode and a reproduced signal is output, the two codes are different, so that the signal comparing circuit 1
5a controls the image selection circuit 12 to select a signal reproduced from the image recording / reproduction device 14.

FIG. 9 is a block diagram showing a fourth embodiment. In the first to third embodiments, the output signal of the recording / reproducing device 14 is selected when the input / output signal of the recording / reproducing device 14 is different, so that the case where the recording / reproducing device 14 is not connected is used. When no signal is output to the display monitor 13, the output signal of the image recording / reproducing apparatus 14 is selected, and therefore, no image is displayed on the display monitor 13.

Therefore, in the fourth embodiment, when the recording / reproducing device 14 does not output an image signal, the screen of the display monitor 13 is not switched. That is, in FIG. 9, a signal imaged by the ultrasonic imaging device is converted by the image processing circuit 11 into respective image signals suitable for the display monitor 13 of the diagnostic device and the external image recording / reproducing device 14, respectively. The image signal suitable for 13 is output to the image selection circuit 12, while the image signal suitable for the recording / reproducing device 14 is output to the recording / reproducing device 14 and the signal comparing circuit 15.

The signal reproduced by the recording / reproducing device 14 is converted by the decoder 16 into an image signal suitable for the diagnostic device, and the image selecting circuit 12 and the signal comparing circuit 1
5 and the signal comparison circuit 15
If the input / output signals of the signal 4 match, the image signal picked up by the ultrasonic imaging is selected, and if not, the control signal for selecting the signal b reproduced from the recording / reproducing device 14 is changed to the mask circuit 2.
Output to 3.

The signal detection circuit 22 determines the presence or absence of the output signal of the recording / reproducing device 14, and the mask circuit 23 outputs the control signal of the signal comparison circuit 15 when the signal detection circuit 22 does not detect this output signal. Mask and image selection circuit 1
2 controls so as to fix and select the image signal obtained by ultrasonic imaging. Further, the mask circuit 23 is
Detects this output signal, the signal comparison circuit 15
Is not masked.

[0028]

As described above, according to the present invention,
The recording / reproducing apparatus 2 outputs the input signal as it is in a state other than the reproducing state, and outputs the reproducing signal in the reproducing state. Therefore, when the recording / reproducing apparatus 2 is set to the reproducing mode, in the invention shown in FIG. 1A, since the video signal 1 obtained by ultrasonic imaging does not match the output signal of the recording / reproducing apparatus 2, the recording / reproducing The output signal of device 2 is selected, and
In the invention shown in FIG. 1 (b), the output signal of the recording / reproducing apparatus 2 is selected because the synchronization signal of the video signal 1 obtained by ultrasonic imaging does not match the synchronization signal separated by the synchronization signal separation means 6.

Therefore, when the recording / reproducing device 2 such as a home VTR is connected, the image recorded on the recording / reproducing device can be reproduced by a simple operation only by setting the recording / reproducing device 2 to the reproducing mode. it can.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a block diagram showing a main part of one embodiment of an ultrasonic diagnostic apparatus according to the present invention.

FIG. 3 is a waveform chart showing main signals when the recording / reproducing apparatus of FIG. 2 is in a state other than a reproducing state.

FIG. 4 is a waveform chart showing main signals when the recording / reproducing apparatus of FIG. 2 is in a reproducing state.

FIG. 5 is a block diagram showing a second embodiment.

FIG. 6 is a waveform chart showing main signals when the recording / reproducing apparatus of FIG. 5 is in a state other than the reproducing state.

FIG. 7 is a waveform diagram showing main signals when the recording / reproducing apparatus of FIG. 5 is in a reproducing state.

FIG. 8 is a block diagram showing a third embodiment.

FIG. 9 is a block diagram showing a fourth embodiment.

FIG. 10 is an explanatory diagram showing terminals of a recording / reproducing apparatus.

[Explanation of symbols]

 1: Ultrasonic imaging signal 2, 14: Recording / reproducing device 3: Display means 4: Selection means 5: Image signal comparison means 6: Synchronization signal separation means 7: Synchronization signal comparison means 11: Image processing circuit 12: Image selection circuit 13 : Display monitor 15, 15a, 15b: signal comparison circuit 16: decode circuit 17: synchronization generation circuit 18: synchronization separation circuit 19: code generation circuit 20: code addition circuit 21: code detection circuit 22: signal detection circuit 23: mask circuit

Claims (6)

(57) [Claims] 1. An ultrasonic diagnostic apparatus to which a recording / reproducing apparatus 2 capable of recording / reproducing a video signal 1 can be connected, a display means 3 for displaying an ultrasonic image, and an ultrasonic image. Signal 1 or the recording / reproducing device 2
A selection means 4 for selecting an output signal of the recording means 3 and outputting the selected signal to the display means 3, a video signal 1 obtained by ultrasonic imaging and an output signal of the recording / reproducing apparatus 2. An image signal comparison means for controlling the selection means to select an output signal of the recording / reproducing apparatus when the video signal is picked up by a sound wave, and when the signal does not match, Ultrasound diagnostic device. 2. An ultrasonic diagnostic apparatus to which a recording / reproducing apparatus 2 capable of recording / reproducing a video signal 1 can be connected, a display means 3 for displaying an ultrasonic image, and an ultrasonic image. Signal 1 or the recording / reproducing device 2
Selecting means 4 for selecting an output signal of the video signal and outputting the selected signal to the display means 3; synchronizing signal separating means 6 for separating a synchronizing signal of a video signal reproduced by the recording / reproducing device 2; The synchronization signal 1 is compared with the synchronization signal separated by the synchronization signal separation means 6, and when they match, the selection means 4 outputs the video signal 1
And a synchronizing signal comparing means 7 for controlling the selecting means 4 to select an output signal of the recording / reproducing apparatus 2 when they do not coincide with each other. 3. An ultrasonic diagnostic apparatus capable of recording and reproducing a video signal and connecting to a recording / reproducing apparatus 14 having an external terminal for outputting a synchronizing signal of the reproduced signal. Display means 13 for displaying
A video signal obtained by ultrasonic imaging or the recording / reproducing device 14
And a synchronizing signal of a video signal obtained by ultrasonic imaging and a synchronizing signal from an external terminal of the recording / reproducing apparatus 14. A comparing unit for controlling the selection unit to select an output signal of the recording / reproducing device when the selection unit selects an image signal obtained by ultrasonic imaging, and does not match; Ultrasound diagnostic device. 4. Separating means 18 for separating a synchronizing signal of a video signal reproduced by the recording / reproducing apparatus 14, and synchronizing signals separated by the separating means 18 or synchronization from an external terminal of the recording / reproducing apparatus 14. 4. The ultrasonic diagnostic apparatus according to claim 3, wherein a signal is selected and output to said comparing means 15a. 5. An ultrasonic diagnostic apparatus to which a recording / reproducing apparatus 14 capable of recording / reproducing a video signal can be connected, wherein a display means 13 for displaying an image captured by ultrasonic imaging.
A video signal obtained by ultrasonic imaging or the recording / reproducing device 14
A selecting means 12 for selecting an output signal of the above and outputting the same to the display means 13; a code adding means 19 for adding a time-varying code to a video signal obtained by ultrasonic imaging and outputting to the recording / reproducing apparatus 14; 20, a detecting means 21 for detecting a code from the video signal reproduced by the recording / reproducing device 14, and a current code and a code detected by the detecting means 21 are compared. Ultrasound diagnosis, comprising: comparison means 15b for selecting a video signal obtained by ultrasonic imaging and controlling the selection means 12 to select an output signal of the recording / reproducing apparatus 14 when the video signals do not match. apparatus. 6. A detecting means 22 for detecting the presence / absence of an output signal of said recording / reproducing apparatus 14, and a detecting means 22 for detecting said output signal of said recording / reproducing apparatus 14. Masking means 23 for masking a control signal and controlling the selecting means 12 to select an ultrasonically imaged video signal
The ultrasonic diagnostic apparatus according to any one of claims 1 to 5, further comprising: