JPH066711A - High-vision device - Google Patents

Abstract

PURPOSE:To compress and display a high-vision signal on a high-vision display and to display video signals having different systems on margin parts as a multipicture. CONSTITUTION:In a high-vision device for processing a high-vision signal and displaying the processed signal on the display surface of a display having 16:9 aspect ratio, a high-vision signal is compressed and displayed on a screen 12 and plural video signals having different systems such as the number of scanning lines and an aspect ratio are converted by scanning conversion, compression or the like and displayed on margin parts 13, 14 as a multipicture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-definition television device, and more particularly to a multi-screen display in which a high-definition television signal is compressed and displayed.

[0002]

2. Description of the Related Art A high-definition television is a new television system which displays fine high-definition images on a large screen with a wide viewing angle and pursues a powerful and realistic feeling. This method
Aspect ratio 16: 9, 1125 scanning lines, current NT
SC system video signal (aspect ratio 4: 3, scanning line 525
Book) different. On the other hand, the start of full-scale multi-channel era due to the start of CS broadcasting following BS broadcasting by satellite, the increase in package media such as VTR and VD, and the image information surrounding viewers such as images created by personal computers. It is rich and diverse. Therefore, in the high-definition television device, not only the high-definition image is displayed by the high-definition television signal but also the current NTSC.
There is a system capable of displaying a system video signal and a multi-screen display of an NTSC system video signal.

[0003]

As described above, since a high-definition television is a high-definition image, for example, an image with an area ratio of ¼ compressed in the horizontal / vertical direction by ½ respectively. Even in this case, it is possible to read information equal to or more than the image of the current NTSC system. The present invention has been made in view of the above point, and has an aspect ratio of 16: 9.
The high-definition television signal is compressed and displayed on the display, and the image information is used by displaying the multi-screen video signals of different NTSC system or the system created by the personal computer which are abundant in the margin. A high-definition television device is provided.

[0004]

In order to solve the above-mentioned problems, the present invention provides a high-definition television apparatus for processing a high-definition television signal and displaying it on a screen of a display having an aspect ratio of 16: 9. A high-definition video signal processing unit for compressing a television signal, a video signal processing unit for performing signal conversion such as scanning conversion and compression on a plurality of video signals having different methods such as scanning frequency and aspect ratio, and the high-definition video signal processing. Unit and a composite screen generation unit that combines the output signals of the video signal processing unit are provided, and the compressed high-definition television signal is displayed as the main image on the display, and a plurality of video signals of different systems are displayed in the blank area. And a high-definition television device.

[0005]

With the above-described structure, the high-definition television apparatus according to the present invention provides a compressed high-definition television signal and a plurality of video signals of different signal conversion methods such as scanning conversion and compression processing. They are combined so that they do not overlap each other, and displayed on a high-quality display with an aspect ratio of 16: 9.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a high definition television device according to the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an image display state of a high definition television device according to an embodiment of the present invention. In FIG. 1, 11 is a display surface of a high-definition display (aspect ratio 16: 9), 12 is a screen with an aspect ratio of 16: 9, which is a high-definition television signal compressed and displayed in a horizontal direction and a vertical direction in a three-quarter direction. 13 has an aspect ratio of 4: 3, for example, an NTSC video signal with an area ratio of 9
It is a screen that is compressed and displayed in one-half, and a maximum of three screens can be displayed. 14 is NTSC with an aspect ratio of 4: 3
With a system video signal, a screen compressed to an area ratio of 1/16 can be displayed in a maximum of 4 screens as shown in the figure. Now, for example, when the above-mentioned image is displayed on a 36-inch display, a high-definition television screen 12 is 27 inches, an aspect ratio 4: 3 screen 13 is about 10 inches, and an aspect ratio 4: 3 screen 14 is about. It will be 7.5 inches and you can get a sufficiently practical image. Further, a menu screen or the like created by a personal computer can be displayed in an arbitrary aspect ratio on a marginal portion where a high-definition television image is displayed, for example, the display surface 14.

FIG. 2 is a principal block diagram showing a schematic structure of a high-definition television device according to the present invention. In FIG. 2, reference numeral 21 is a high-definition television signal input terminal, 22 is an A / D converter for converting the input signal into a digital signal, and 23 is an image compression process such as required thinning in the horizontal and vertical directions. An image processing unit, 24 is a frame memory for storing the compressed frames, and 25 is the above-mentioned symbols 22, 23 and 24.
It is a high-definition video signal processing unit including. 26 is an input terminal for inputting a plurality of video signals having different scanning frequencies, aspect ratios, etc., 27 is a changeover switch for selecting the input video signals, and 28 is an A / D for converting each of the input signals into a digital signal. A converter, 29 is an image processing unit that performs scanning conversion, compression processing, etc. of each digitized video signal, 30 is a frame memory that stores the frame of each video signal that has been processed, and 31 includes the reference numerals 27 to 30. And a video signal processing unit for processing a plurality of video signals of different systems. Reference numeral 32 is a composite screen generation unit that combines the output signals of the high-quality video signal processing unit 25 and video signal processing unit 31, and 33 is a D / A conversion that converts the digital signal output from the composite screen generation unit 32 into an analog signal. Reference numeral 34 is a control unit for controlling the above-mentioned respective units such as selection of an input signal and writing / reading of data.

Next, the operation of the high definition television device configured as described above will be described. The high-definition television signal input to the input terminal 21 is converted by the high-definition video signal processing unit 25 into a digital signal that has been thinned out in the horizontal / vertical three-fourth direction, and is input to the composite screen generation unit 32. It on the other hand,
A plurality of video signals of different systems input to the input terminal 26 are converted by the changeover switch 27 via the control unit 34 into a signal corresponding to FIGS. 1 and 13 and a signal corresponding to 14 according to a user's instruction. Each is selected. Then, the selected signal is A / D
In the converter 28 and the image processing unit 29, scan conversion, compression, etc. are processed by clock pulses phase-synchronized with the horizontal synchronizing signals of the respective video signals, written into the frame memory 30, and input to the input terminal 21. It is read from the frame memory 30 at the timing synchronized with the horizontal / vertical synchronizing signals of the high-definition television signal, is input to the synthesis screen generation unit 32, and is synthesized with the above-described compressed high-definition television signal. The combined signal is converted into an analog signal by the D / A converter 33, and is subjected to predetermined processing such as RGB matrix output to a high quality display.

FIG. 3 is a diagram showing an image display state of a high quality television device according to another embodiment of the present invention. Figure 3
, 11 is a display surface of a high-definition display, 41 is a screen with an aspect ratio of 16: 9, which is obtained by compressing two types of high-definition television signals by half in the horizontal and vertical directions, and 42 is an area ratio. Aspect ratio 4: 3 compressed to 1/16
6 screens, 43 is a screen created by a personal computer, etc., and the aspect ratio is a high-definition television signal or the current NTSC.
An image different from the signal of the system is displayed. In this case, the high-definition video signal processing unit compresses the two types of high-definition television signals into halves in the horizontal and vertical directions, respectively, and the combined image generation unit combines them with video signals of different systems. can do. The margins shown in Fig. 3
The video signals of different formats in 42 and 43 can be displayed in various combinations such as the compression ratio.

[0010]

As described above, in the high definition television device according to the present invention, the aspect ratio is 16: 9.
A high-definition television signal is compressed and displayed on the high-definition display of, and a video signal of the current NTSC system or a video signal of a different system created by a personal computer is displayed on the multi-screen in the margin. Therefore, the main screen is a high-definition television signal with excellent resolution, and a wide variety of NTSC
Multi-screen display of signals such as methods does not overlap each other,
There is an effect that video information can be effectively used. Furthermore, if it is connected to a personal computer to configure the system, it can be used as a commercial image processing system.

[Brief description of drawings]

FIG. 1 is a diagram showing an image display state of a high quality television device according to an embodiment of the present invention.

FIG. 2 is a principal block diagram showing a schematic configuration of a high-definition television device according to the present invention.

FIG. 3 is a diagram showing an image display state of a high quality television device according to another embodiment of the present invention.

[Explanation of symbols]

 11 High-definition display screen 12 High-definition television signal screen with compressed display 13 Compressed display screen with 4: 3 aspect ratio 14 Compressed display screen with 4: 3 aspect ratio 21 Input terminal 22 A / D converter 23 Image processing section 24 Frame memory 25 High-definition image signal processing unit 26 Input terminal 27 Changeover switch 28 A / D converter 29 Image processing unit 30 Frame memory 31 Video signal processing unit 32 Composite screen generation unit 33 D / A converter 34 Control unit

Claims (3)

[Claims] 1. A high-definition television device for processing a high-definition television signal and displaying it on a screen of a display having an aspect ratio of 16: 9, and a high-definition video signal processing section for compressing the high-definition television signal. A video signal processing unit that performs video conversion such as scanning conversion and compression on a plurality of video signals having different methods such as scanning frequency and aspect ratio, and a composite screen generation that combines the output signals of the high-quality video signal processing unit and the video signal processing unit And a compressed high-definition television signal is displayed as a main image on a display, and a plurality of image signals of different systems are displayed in a margin portion. 2. The compression of the high definition television signal comprises:
The high-definition television device according to claim 1, wherein compressed display is performed in each of the horizontal direction and the vertical direction by three-quarters. 3. A high-definition television signal of two types is compressed and displayed in half in the horizontal and vertical directions, respectively, and is displayed, and a plurality of video signals of different systems are displayed in a margin portion. The described high-definition television device.