JP2651012B2 - Television receiver - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color television receiver, and more particularly to a display having an aspect ratio (aspect ratio) of a display screen different from an aspect ratio (4: 3) of a standard video signal. The present invention relates to a television receiver having the following.

[Conventional technology]

With the recent spread of VTRs (video tape recorders) and VDPs (video disc players), many video software programs (hereinafter referred to as movie software programs) that record movies have been marketed. In many of these movie softwares, the proportion of the video is set to be landscape in order to convey all the video information, and non-image portions (portions without video information) are inserted above and below the display screen. Such a movie software can be displayed on a display screen with a different aspect ratio (for example, 16:
When the image is displayed on a horizontally long display having 9), a method of obtaining a powerful image by displaying the image period on the entire display screen is known.

For example, in a television receiver described in JP-A-63-198487, whether or not movie software is detected is detected based on the length of a non-image portion of an input video signal. The horizontal and vertical amplitudes (horizontal and vertical lengths on the display screen) are enlarged according to the length of the non-image area,
It was displayed on a landscape display. Further, when the widths of the upper and lower non-image portions on the display screen are different, the vertical phase of the image is changed in accordance with the difference, so that the display is balanced in the vertical direction.

[Problems to be solved by the invention]

However, in the above conventional example, no consideration is given to the subtitles of the movie software, and there are the following problems.

Many commercially available movie software have recorded Western movies, with Japanese subtitles added. The display position of the subtitle differs depending on the software, and there are a display position in the video period and a display position in the non-picture portion at the lower portion of the display screen as shown in FIG.

When such movie software with subtitles in non-picture areas is displayed on a display with an aspect ratio of 16: 9 in the above-described conventional example, if the horizontal amplitude is taken to fill the entire display screen, the vertical amplitude becomes 4 / It is enlarged three times. At this time, since the subtitles are located in the non-picture portion, the subtitles come out of the display screen due to the increase in the amplitude in the vertical direction, resulting in a screen lacking the subtitles as shown in FIG. 11 (b).

An object of the present invention is to solve the above-mentioned problems of the conventional example and to provide a television receiver capable of performing a powerful display without missing subtitles even for movie software having subtitles in a non-picture portion. In order to achieve the above object, in the present invention, the aspect ratio of the display screen in a television receiver having a display different from the aspect ratio of the standard video signal,
A video signal input, a video period detecting means for detecting a period in which the video in the video signal exists, a caption period detecting means for detecting a period in which the subtitle exists in the video signal, and a display for controlling a display method A method control unit, a subtitle processing unit capable of performing processing on a subtitle portion in the video signal to change a relative positional relationship or a subtitle size of the subtitle portion with respect to the video portion, and a method of vertically converting the video signal on a display screen. Vertical enlarging means for enlarging in the direction, and vertical position adjusting means for adjusting a vertical position of an image based on the image signal on a display screen are provided. Further, a time axis compressing means for compressing a video signal to be displayed on the display in a horizontal direction as necessary is provided.

[Action]

The video period detecting means detects a period in the input video signal where a video exists. Further, the subtitle period detecting means detects a period in which the subtitle exists in the video signal.

The display method control unit determines that the input image is a normal image if the length of the video period of the input video is longer than a predetermined length from the detection result of the video period detection unit. If it is determined that the image is a normal image, the video signal displayed by controlling the time axis compression means is compressed in the horizontal direction, and the input video signal is displayed on the display without distortion.

If the length of the video period of the input video is shorter than a predetermined length, the video is determined to be movie software. If it is determined to be movie software, by controlling the subtitle processing unit, the vertical enlarging unit, and the vertical position adjusting unit according to the detection result of the video period detecting unit and the subtitle period detecting unit, Process the subtitles,
The displayed video signal is enlarged in the vertical direction, and the vertical position is adjusted so that the subtitle included in the input video signal is displayed on the display without missing.

Here, as the processing performed in the subtitle processing means, for example, the following processing can be considered.

That is, the subtitle included in the video signal is moved into the display screen by deleting part or all of the period between the video period and the subtitle period in the video signal. Alternatively, the subtitle included in the video signal is once extracted, and the extracted subtitle is added to the video period again to move the subtitle into the display screen. Alternatively, subtitles included in the video signal are thinned out and reduced to fit in the display screen.

Thus, even when movie software having subtitles in the non-picture portion is input, a powerful display can be performed without missing video or subtitles.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

 FIG. 1 is a block diagram showing one embodiment of the present invention.

In the figure, 101 is a video signal input terminal, and 102 is an analog /
A digital (hereinafter abbreviated as A / D) converter, 103 is a synchronization separation circuit, 104 is a video signal processing circuit, 105 is a video period detection circuit, 106 is a subtitle period detection circuit, 107 is a clock generation circuit , 108 is a time axis compression circuit, 109 is a display method control circuit, 110 is a caption moving circuit, 111 is a vertical position adjustment circuit, and 112 is a digital / analog (hereinafter abbreviated as D / A) converter. , 113 indicate a display having a display screen aspect ratio of 16: 9, and 114 indicates a vertical amplitude expansion circuit.

The video signal input from the input terminal 101 is input to the A / D converter 102
Is converted to a digital signal, and a synchronization signal is separated in a synchronization separation circuit 103. The video signal converted into a digital signal is supplied to a video signal processing circuit 104, a video period detection circuit 105, and a subtitle period detection circuit. The separated synchronization signal is supplied to the clock generation circuit 107,
It is supplied to a display method control circuit 109, a caption moving circuit 110, a vertical position adjusting circuit 111, and a display 113.

The video signal processing circuit 104 performs basic processing on the video signal, for example, processing such as luminance signal / color signal separation, noise reduction, and edge enhancement, and outputs the processed signal to the time axis compression circuit 108.

In the video period detection circuit 105, for example, in each horizontal line of the video signal, an average level in one horizontal line is obtained, and a horizontal line larger than a set level as compared with a preset level is a video period. The length of the period is detected, and the detection result is output to subtitle period detection circuit 106 and display method control circuit 109.

The subtitle period detection circuit 106 detects the length of the subtitle period by determining that a horizontal line having a level equal to or higher than a preset level other than the detected video period is the subtitle period, and displays the detection result. Output to the control circuit 109.

The display method control circuit 109 first determines whether it is a normal image (video aspect ratio 4: 3) or movie software based on the length of the input video period and the length of the subtitle period. When it is determined that the video and the subtitle are combined and the amplitude in the vertical direction is enlarged, it is further determined whether or not the video fits into the display screen when the amplitude is increased.

Here, the judgment as to whether it is a normal image or movie software is made by comparing the length of the input video period with a preset value. It is done by doing. In addition, when the amplitude in the vertical direction is enlarged, it is determined whether or not it fits within the display screen. It is done by saying that it fits in, and does not fit if it is large.

After that, the display method control circuit 109, based on the information determined in this way, the clock generation circuit 107, the subtitle moving circuit 11
0, a signal for controlling the vertical position adjustment circuit 111 and the vertical amplitude expansion circuit 114 is generated and output.

Hereinafter, the case where it is determined that the image is a normal image, the case where it is movie software and it is determined that it fits in the display screen when the vertical amplitude is enlarged, and the case where it is movie software and it does not fit in the display screen when the vertical amplitude is enlarged. The respective circuit operations in the case where it is determined that there is no difference will be described.

First, when it is determined that the image is a normal image, the time axis compression circuit 108 compresses the time axis of the video signal to 3/4 times. The time axis compression circuit 108 is configured using, for example, a line memory, and the read clock is used as the write clock.
By setting the frequency to 4/3 times, the video signal is compressed and output to the caption moving circuit 110. At this time, the video signal is read out by controlling the readout timing to the line memory so that the video data is at the center of the screen and the blanking level data is at a predetermined position in the horizontal blanking period.

As the clock for compression, the clock generation circuit 107 generates a write clock synchronized with the video signal and a stable read clock having a frequency 4/3 times that of the video signal and generated by a crystal oscillator or the like. Is done. A signal for controlling the write timing and the read timing is generated by counting the write clock and the read clock in the display method control circuit 109.

After that, the subtitle moving circuit 110 and the vertical position adjusting circuit 111 pass the compressed video signal without doing anything, and
The signal is converted into an analog signal by the A converter 112 and displayed on the display 113. The vertical amplitude expansion circuit 114 controls the display 113 so as to perform normal vertical deflection. Further, the horizontal driving pulse of the display 113 is supplied to the display method control circuit 109.
In this case, the frequency is generated by dividing the read clock.

Next, when it is determined that the movie software is within the display screen when the amplitude in the vertical direction is increased, the read clock generated by the clock generation circuit 107 is switched to a stable clock having the same frequency as the write clock, The time axis compression circuit 108 does not compress the time axis of the video signal.

Thereafter, the subtitle moving circuit 110 passes the image without performing any operation, and the vertical position adjusting circuit 111 changes the vertical position of the image and the subtitle on the display screen. The vertical position adjustment circuit 111 is configured using, for example, a field memory, and changes the read timing with respect to the write timing in units of horizontal lines so that the video and subtitles are vertically balanced in the display screen when the amplitude in the vertical direction is increased. Reading is performed so that the image can be displayed well.

The video signal whose vertical position has been adjusted is sent to the D / A converter 1
It is converted to an analog signal by 12 and the display 113
Will be displayed. At this time, by controlling the display 113, the vertical amplitude expansion circuit 114 changes the amplitude of the vertical deflection current to increase the vertical amplitude of the video and subtitles on the display screen by 4/3.

Finally, when it is determined that the movie software does not fit within the display screen when the amplitude is enlarged in the vertical direction, the time axis compression circuit 108 does not compress the time axis of the video signal as described above.

Then, the caption moving circuit 110 moves the caption on the display screen upward.

FIG. 2 is a block diagram showing a specific configuration of the caption moving circuit in FIG.

In the figure, reference numeral 901 denotes a video signal input terminal, 902 denotes a field memory, 903 denotes a write control signal input terminal, 904 denotes a synchronization signal input terminal, and 905 denotes a video signal output terminal.

First, the input video signal is stored in the field memory 902. At this time, writing is prohibited for a deletion period (a period between the video of the input image and the caption) shown in FIG. 3A by a writing control signal from the display method control circuit 109. After that, the stored video signal is divided into the synchronization separation circuit 103
The subtitles are moved upward by sequentially reading the subtitles based on the synchronization signal from.

The vertical position adjustment circuit 111 adjusts the vertical position of the video signal to which the subtitle has been moved so that the video and the subtitle can be displayed in a well-balanced manner when the amplitude is increased in the vertical direction in the same manner as above. After that, the signal is converted into an analog signal by the D / A converter 112, and the vertical amplitude expansion circuit 114
, The vertical amplitude is displayed 4/3 times. The display image at this time is shown in FIG.

In this embodiment, the time axis compression circuit 108 and the subtitle moving circuit 110
The vertical position adjustment circuit 111 is separately configured using a line memory and a field memory. However, a single field memory may have the functions of the above three circuits.

As described above, according to the present embodiment, even for movie software having subtitles during the blanking period, a powerful display can be performed without missing subtitles when the amplitude in the vertical direction is increased. Further, since the reading of the video signal from the time axis compression circuit 108 is performed by a stable clock, there is also a time axis correction effect of absorbing the jitter of the input video signal. Further, at the time of the time axis compression, the video signal is read out from the time axis compression circuit 108 separately for the video data and the blanking level data.
The level reproduction can be performed correctly even when displayed at the center of the.

FIG. 4 is a block diagram showing another embodiment of the present invention.

In the figure, reference numeral 401 denotes a caption adding circuit. In addition, components having the same reference numerals as those in FIG. 1 have the same configuration and function.

Also in the present embodiment, the display method control circuit 109 determines whether the image is a normal image or movie software, and in the case of movie software, whether or not the image fits in the display screen when the amplitude is enlarged in the vertical direction. Judgment is made in the same manner as in the embodiment of FIG. 1, and each circuit is controlled to switch the display method. Hereinafter, the circuit operation in each case will be described.

First, when it is determined that the image is a normal image, the time axis compression circuit 108 compresses the time axis of the video signal to 3/4 times by the same method as the embodiment of FIG. After that, the signal is passed through the vertical position adjustment circuit 111 and the caption addition circuit 401 without performing any operation, converted into an analog signal by the D / A converter 112, and displayed on the display 113. Vertical amplitude expansion circuit 114
Controls the display 113 to perform normal vertical deflection. The horizontal driving pulse of the display 113 is generated by the display method control circuit 109 by dividing the frequency of the read clock input from the clock generation circuit 107.

Next, in the case of movie software, if it is determined that the movie software fits within the display screen when the amplitude is enlarged in the vertical direction, the time axis compression circuit 108 performs the same method as in the embodiment of FIG.
Stops compression of the time axis of the video signal. Then, the vertical position adjustment circuit 111 adjusts and outputs the vertical position so that the video and the subtitle can be displayed in a vertical balance on the display screen when the amplitude in the vertical direction is enlarged. After that, the subtitle adding circuit 401 passes the signal without doing anything, converts the signal into an analog signal by the D / A converter 112, and displays the analog signal on the display 113. At this time, the vertical amplitude enlargement circuit 114 controls the display 113 to change the amplitude of the vertical deflection current to increase the vertical amplitude of video and subtitles by 4/3.

Finally, when it is determined that the video software does not fit within the display screen when the amplitude is enlarged in the vertical direction, the time axis compression circuit 108 does not compress the time axis of the video signal as described above. Then, the vertical position adjusting circuit 111 adjusts the vertical position so that the image can be displayed near the vertical center of the display screen when the amplitude is enlarged in the vertical direction, and outputs the adjusted image.

Then, the caption adding circuit 401 deletes the caption on the display screen once, and then newly adds the caption.

FIG. 5 is a block diagram showing a specific configuration of the caption adding circuit in FIG.

In the figure, 1001 is a video signal input terminal, 1002 is a gate circuit, 1003 is a selection circuit, 1004 is a memory, 1005 is a timing generation circuit, 1006 is a control signal input terminal, and 1007 is a synchronization signal input terminal. Reference numeral 1008 denotes a video signal output terminal.

The gate circuit 1002 replaces the subtitle period of the input video signal with black information according to the control signal indicating the subtitle period from the display method control circuit 109, erases the original subtitle, and outputs the same to the selection circuit 1003 . The memory 1004 stores subtitle information in the video signal (for example, the most significant bit [MSB] of the video data during the subtitle period) according to the control signal indicating the subtitle period.
Remember only

After that, in the timing generation circuit 1005, the subtitle information is read so as to be at a predetermined position in the display screen by the read timing signal generated based on the synchronization signal from the synchronization separation circuit 103, and the selection circuit 1003 is controlled. . In the selection circuit 1003, according to the read subtitle information,
Normally, the video signal is selected, and a subtitle is added by selecting a fixed value corresponding to white in the subtitle portion.

The video signal to which subtitles are added in this manner is converted into an analog signal by the D / A converter
Will be displayed. At this time, the vertical amplitude expansion circuit 114 controls the display 113 so that the vertical amplitude of the video and subtitles is displayed by multiplying by 4/3. The display image at this time is shown in FIG.

In the present embodiment, the subtitle adding circuit 401 is constituted by a digital circuit. However, the subtitle adding process may be performed by a generally known technique such as a saver imposition and an on-screen display.

As described above, according to this embodiment, the same effect as that of the embodiment shown in FIG. 1 can be obtained.

FIG. 7 is a block diagram showing another embodiment of the present invention.

In the figure, reference numeral 501 denotes a caption reduction circuit. In addition, components having the same reference numerals as those in FIG. 1 have the same configuration and function.

Also in this embodiment, the display method control circuit 109 determines whether the image is a normal image or movie software, and in the case of movie software, whether or not the image fits on the display screen when the vertical amplitude is enlarged, as shown in FIG. Judgment is made in the same manner as in the embodiment, and each circuit is controlled to switch the display method. Hereinafter, the circuit operation in each case will be described.

First, when it is determined that the image is a normal image, the time axis compression circuit 108 compresses the time axis of the video signal to 3/4 times by the same method as the embodiment of FIG. Thereafter, the signal is passed through the subtitle reduction circuit 501 and the vertical position adjustment circuit 111 without performing any operation, converted into an analog signal by the D / A converter 112, and displayed on the display 113. The vertical amplitude expansion circuit 114
The display 113 is controlled so as to perform normal vertical deflection.
The horizontal driving pulse of the display 113 is generated in the display method control circuit 109 by dividing the frequency of the read clock input from the clock generation circuit 107.

Next, in the case of movie software, if it is determined that the movie software fits within the display screen when the amplitude is enlarged in the vertical direction, the time axis compression circuit 108 performs the same method as in the embodiment of FIG.
Stops compression of the time axis of the video signal. Then, the caption reduction circuit 501 passes without doing anything, and the vertical position adjustment circuit 111 adjusts the vertical position so that the video and the subtitle can be displayed in a well-balanced manner on the display screen when the amplitude is increased in the vertical direction. Output. After that, the signal is converted into an analog signal by the D / A converter 112 and displayed on the display 113. At this time, the vertical amplitude enlargement circuit 114 controls the display 113 to change the amplitude of the vertical deflection current to increase the vertical amplitude of the video and subtitles by 4/3.

Finally, when it is determined that the movie software does not fit within the display screen when the amplitude is enlarged in the vertical direction, the time axis compression circuit 108 does not compress the time axis of the video signal as described above.

Then, the caption reduction circuit 501 reduces only the caption.

FIG. 8 is a block diagram showing a specific configuration of the caption reduction circuit in FIG.

In the figure, 1101 is a video signal input terminal, 1102 is a gate circuit, 1103 is a selection circuit, 1104 is a memory, 1105 is a thinning signal generation circuit, 1106 is a timing generation circuit, and 1107 is a control signal input. 1108 is the sync signal input terminal, 1109
Indicates video signal output terminals.

The gate circuit 1102 replaces the subtitle period of the input video signal with black information according to the control signal indicating the subtitle period from the display method control circuit 109, erases the original subtitle, and outputs the same to the selection circuit 1103. . The memory 1104 thins out only the subtitle portion in the video signal in the horizontal and vertical directions according to the thinning signal generated by the thinning signal generating circuit 1105 and stores it. Then, in the timing generation circuit 1106, the synchronization separation circuit 10
The subtitle section is read out by the readout timing signal generated based on the synchronization signal from 3 and the selection circuit
Output to 1103. The selection circuit 1103 normally selects the video signal in accordance with the read timing, and selects only the output of the memory 1104 during the subtitle period to reduce only the subtitle.

In the vertical position adjustment circuit 111, the vertical position is adjusted so that the image and the reduced subtitle can be displayed on the display screen in a well-balanced manner in the vertical position adjustment circuit 111. After being adjusted, the signal is converted into an analog signal by the D / A converter 112 and displayed on the display 113. At this time, the vertical amplitude expansion circuit 114 controls the display 113 so that the vertical amplitude of the video and subtitles is displayed by multiplying by 4/3. The display image at this time is shown in FIG.

As described above, according to this embodiment, the same effect as that of the embodiment shown in FIG. 1 can be obtained.

FIG. 10 is a block diagram showing still another embodiment of the present invention.

This embodiment has the same function as the embodiment of FIG. 1, and is used for adjusting the vertical position of the video and subtitles.
The phase of the vertical drive pulse of the display 113 is changed.

In the figure, reference numeral 801 denotes a vertical position adjusting circuit, and those having the same reference numerals as those in FIG. 1 have the same configuration and function.

In the embodiment shown in FIG. 1, the vertical position adjustment circuit 111 stores the video signal in the field memory and changes the readout timing to adjust the vertical position of the video and subtitles on the display screen.

In the present embodiment, when the display method control circuit 109 determines that it is movie software, the vertical position adjustment circuit 80
By controlling 1 and changing the phase of the vertical drive pulse supplied to the display 113, the video and the caption are displayed on the display screen in a well-balanced manner.
Other circuit operations are the same as in the embodiment of FIG.

As described above, according to this embodiment, the same effect as that of the embodiment shown in FIG. 1 can be obtained.

The method of adjusting the vertical position of the video and subtitles on the display screen by changing the phase of the vertical drive pulse of the display 113 as in the present embodiment is also applied to the embodiment of FIG. it can.

Further, in the above four embodiments, the vertical amplitude expansion circuit 114 changes the vertical deflection current of the display 113 to expand the amplitude of the video and subtitles in the vertical direction, but by digital processing using a memory or the like, The configuration may be such that the amplitude is increased in the vertical direction.

〔The invention's effect〕

As described above, according to the present invention, even for movie software having a caption in a non-picture portion, it is possible to process the caption so that the caption fits within the display screen, and thus the video or the caption is missing. Powerful display can be performed without the need.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing a specific configuration of a caption moving circuit in FIG. 1, and FIG. 3 (a) is a video signal in FIG. FIG. 3B is an explanatory view showing an input image to be input, and FIG.
4 is an explanatory diagram showing a display image displayed on a display screen of a display, FIG. 4 is a block diagram showing another embodiment of the present invention, and FIG. 5 is a diagram showing a specific configuration of a caption adding circuit in FIG. FIG. 6 is an explanatory view showing a display image displayed on the display screen of the display in FIG. 4, FIG. 7 is a block diagram showing another embodiment of the present invention, and FIG. 8 is FIG. 9 is a block diagram showing a specific configuration of a caption reduction circuit in FIG. 9, FIG. 9 is an explanatory diagram showing a display image displayed on a display screen of a display in FIG. 7, and FIG. 10 shows still another embodiment of the present invention. FIG. 11 (a) is an explanatory diagram showing an input image input as a video signal in a conventional example, and FIG. 11 (b) is an explanatory diagram showing a display image displayed on a display screen in a conventional example. FIG. EXPLANATION OF SYMBOLS 105: Video period detection circuit 106: Subtitle period detection circuit
107: Clock generation circuit, 108: Time axis compression circuit, 10
9 Display method control circuit 110 Subtitle moving circuit 111
... vertical position adjustment circuit, 113 ... display, 114 ... vertical amplitude expansion circuit, 401 ... subtitle addition circuit, 501 ... subtitle reduction circuit, 801 ... vertical position adjustment circuit.

 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-63-185173 (JP, A) JP-A-64-29178 (JP, A) JP-A-63-263882 (JP, A)

Claims (12)

(57) [Claims] 1. A television receiver having a display having an aspect ratio of a display screen different from an aspect ratio of a standard video signal, wherein a video signal is inputted and a video period detection for detecting a period in which the video exists in the video signal. Means, a caption period detecting means for detecting a period in which the caption is present in the video signal, a display method control means for controlling a display method, and processing the caption portion in the video signal, Subtitle processing means capable of changing the relative positional relationship or subtitle size with respect to an image portion; vertical enlarging means for enlarging the image signal in a vertical direction on a display screen; adjusting a vertical position of an image based on the image signal on a display screen. Vertical position adjusting means for controlling the display method, wherein the display method control means controls presence of an image detected by the image period detecting means. When it is determined that the time period to be performed is shorter than a predetermined length, the display screen for the video portion of the subtitle portion is controlled by controlling the subtitle processing unit in accordance with the detection result of the video period detection unit and the subtitle period detection unit. After changing the above relative positional relationship or subtitle dimensions to a suitable positional relationship or dimensions, the vertical enlargement means enlarges the video signal in the vertical direction on the display screen,
A television receiver, wherein a vertical position of a displayed image is adjusted by the vertical position adjusting means. 2. A television receiver having a display having an aspect ratio of a display screen different from an aspect ratio of a standard video signal, wherein a video signal is input and a video period detection for detecting a period in which the video exists in the video signal. Means, a caption period detecting means for detecting a period in which the caption is present in the video signal, a display method control means for controlling a display method, and processing the caption portion in the video signal, Subtitle processing means capable of changing the relative positional relationship or subtitle size with respect to an image portion; vertical enlarging means for enlarging the image signal in a vertical direction on a display screen; adjusting a vertical position of an image based on the image signal on a display screen. Vertical position adjusting means, and a time axis compressing means for horizontally compressing a video signal to be displayed on the display. When the display method control unit determines that the period in which the image detected by the image period detection unit is present is longer than a predetermined length, the image signal displayed by controlling the time axis compression unit is horizontally shifted. And automatically display the image on the display in a direction, and when the display method control unit determines that the period in which the image detected by the image period detection unit exists is shorter than a predetermined length, the image period detection is performed. Means for controlling the subtitle processing means, the vertical enlarging means, and the vertical position adjusting means in accordance with the detection result of the subtitle period detecting means, respectively, to process the subtitles, and to display the displayed video signal in the vertical direction. And further adjust the vertical position so that the subtitles included in the input video signal fit within the display screen of the display. Television receiver, characterized in that it is automatically displayed. 3. The television receiver according to claim 1, wherein said video period detecting means detects an average level of said video signal during a horizontal scanning period, and said detected average level. And a comparing means for comparing the level with a preset level. 4. The television receiver according to claim 1, wherein said subtitle period detecting means includes a comparing means for comparing a level of a period other than a video period in said video signal with a preset level. A television receiver, comprising: 5. The television receiver according to claim 1, wherein said subtitle processing means is configured using a memory. 6. A television receiver according to claim 1, wherein said vertical enlargement means enlarges an amplitude of a vertical deflection current applied to said display to vertically shift a video signal to be displayed on said display. A television receiver characterized by being enlarged. 7. The television receiver according to claim 1, wherein said vertical enlargement means comprises a memory, and vertically interpolates a video signal displayed on said display by interpolating a scanning line. A television receiver. 8. The television receiver according to claim 1, wherein said vertical position adjusting means changes a vertical position of a video signal displayed on said display according to a phase of a vertical drive pulse applied to said display. A television receiver characterized by the above-mentioned. 9. The television receiver according to claim 1, wherein said vertical position adjusting means comprises a memory, and a vertical position of a video signal to be displayed on said display by a phase difference between writing and reading. A television receiver characterized by changing the following. 10. A television receiver according to claim 1, wherein said vertical position adjusting means has been processed by said subtitle processing means with a signal of a period during which a video in said video signal exists. A television receiver for adjusting a vertical position of a signal including subtitles. 11. The television receiver according to claim 1, wherein said subtitle processing means, said vertical enlargement means, and said vertical position adjustment means share the same memory. John receiver. 12. The television receiver according to claim 2, wherein said time axis compression means, said subtitle processing means,
The television receiver, wherein the vertical enlargement unit and the vertical position adjustment unit share the same memory.