JPH048080A - Picture display device - Google Patents

Abstract

PURPOSE:To send other information without occurrence of missing in a video image to be up-converted by providing a movable picture mobile means moving a video image subjected to up-convert to a desired position in a display section and an information display means displaying the information other than video image to a space other than the video image. CONSTITUTION:A data such as an information display position and a picture display position of a display section 1 by an external switch, that is, an external input device 13 such as a joy stick as a picture mobile means A is converted into a data for address controller by an I/F 11 and the result is inputted to an address controller 10. Then a readout of a memory data from a line memory 7 is sequentially read from a head address of a line memory, fed to a D/A converter 12, in which the digital signal is converted into an analog signal and the result is outputted to the display section 1, and other information (such as clock) is displayed on a space 2 of the display section 1 of a High Vision picture display device.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention
vjsionSystem Comm1ttee co
The present invention relates to an image display device that up-converts a lor system signal to a high-definition system.

(Conventional Technique #) FIGS. 4 and 5 show a display example (Part 1) and a display example (Part 2) of a display unit of a conventional image display device. 1 is a display section of an image display device, 2 is a margin area, and 3 is an image obtained by up-converting an NTSC signal.

Conventionally, in an image display device that converts an NTSC signal into a high-definition signal scanning format using an up-converter and displays it, the up-converted video is displayed on the display section 1 of the image display device with blank spaces on both sides, as shown in FIG. Up-converted video 3 is displayed, leaving video 2. Alternatively, as shown in FIG. 5, the image is enlarged, displayed on the display unit 1 of the image display device, and scrolled on the device side.

[Problem to be solved by the invention]

However, in the above conventional example, when up-converting an NTSC signal and displaying it at a specific position on the display section of an image display device, due to the difference in aspect ratio between the NTSC system and the high-definition system, the display on the high-definition image display device If there is a margin (a part where the video signal is not projected) in the area, and if the horizontal video signal of the NTSC signal is expanded and displayed to match the horizontal direction of the display unit of a high-definition image display device, the high-definition There was a drawback that the vertical video signal of the display section of the image display device was missing.

The present invention has been made in order to solve the problems of the conventional example as described above, and is an image display device that can display information other than up-converted video in the margin area of the display section of the image display device. intended to provide.

[Means to solve the problem]

Therefore, in the present invention, in an image display device that converts a color television signal into a high-definition signal scanning format using an up-converter and displays the image on a display section, the up-converted image is placed at a desired position within the display section. The above object is achieved by providing an image display device comprising a movable image moving means and an information display means for displaying information other than the image in a blank area other than the image. .

(Function) Since the configuration is as follows, the color television signal is up-converted to a high-definition signal,
The obtained image is moved to a desired position on the display section using an image moving means, and other information other than the image is displayed using an information display means in the margin of the display section caused by the difference in aspect ratio due to the difference in the method. I can do something.

〔Example〕

(Example 1) FIG. 1 is a block diagram of an image display device according to Example 1 of the present invention, and FIG. 2 is a diagram showing a display example of the display section of the image display device according to Example 1. Note that the same (equivalent) components as in the conventional example shown in FIGS. 4 and 5 are represented by the same reference numerals, and repeated explanation will be omitted.

In the figure, 4 is a tuner that selects an NTSC signal, 5 is an A/D converter that converts an analog signal to a digital signal, and 6 is a converter that converts the scanning method of the video signal from the NTSC system to the high-definition system. 7 is a line memory for storing video information etc. from the up converter 6; 8 is an information generator for generating time data; 9 is for displaying information other than video from the time data from the information generator 8 10 is an address controller that controls the data writing position of the up converter 6 and the data writing position of the character generator 9;
11 is an I that converts data from external switches, knobs, and joysticks into data for the address controller.
/F (interface), 12 is a D/'A converter that converts the digital signal from the line memory 7 into an analog signal.

Note that the image moving means A is an I/Fit and address controller! The information display means B is composed of an information generator 8 and a character generator 9.

In the Kamikita configuration, the NTSC signal is selected by tuner 4 and sent to A/D converter 5.

The NTSC signal is converted from an analog signal to a digital signal by the A/D converter 5. Then, this NTSC signal is converted by an up converter 6 into a high-speed signal scanning system.

Next, time data (9:09:01 on the first day of the month) from the information generator 8, which is the information display means B, is input to the character generator 9. And character generator 9
By horizontal synchronization from the up-converter 6, a character signal corresponding to the time data is generated after the video signal of the IH (horizontal scanning period) of the up-converter 6 is received.

Also, as the image moving means A, an external switch, that is,
Display unit 1 using external input device 13
17F11 converts data such as image display position and information display position into a table for the address controller, and inputs the data to the address controller 10 manually. The address controller 10 uses the data from the l/F 11 to
- Controls the writing address of the video signal from the 6th line to the line memory 7. The start write address of this video signal is set by an external switch from the start address of the line memory 7.
The offset is made in correspondence with data from an external human power device 13 such as a knob or joystick. The character data from the character generator 9 is written from the address next to the final address of the up-converted video information data to the final address of the line memory 7. Then, when writing the video signal or character data on the line 7, the address controller 10 outputs the offset write address to the line memory 7, and the line memory 7 starts from the address indicated by the manually entered control data. I will write down the words ``te~'' and ``h'' one by one.

Then, reading memory data from the line memory 7 is performed by sequentially reading from the first address of the line memory 7,
/A converter 12, converts the digital signal into an analog signal, and outputs it to the display unit 1, thereby displaying other information on the margin 2 of the display unit 1 of the high-definition image display device as shown in FIG. (For example, a clock) can be displayed.

In the present invention, the time is displayed as information other than the video,
It is also possible to provide other information such as doorbells and video calls.

(Embodiment 2) FIG. 3 is a block diagram of an image display device according to Embodiment 2 of the present invention. Components that are the same (equivalent) as those in the prior art example shown in FIGS. 4 and 5 and the first embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals, and redundant explanation will be omitted.

In the figure, reference numeral 15 denotes the first frame where video information etc. from the up converter 6 is stored;
is the data write position of up converter 6 and the second
This is an address controller that controls reading of the first frame memory 16 and writing of read video data to the first frame memory 15.

In addition, as information display means B, 17 separates video No. 13 from signals from video telephones and doorbells! 1'' is a video signal separator, 18 is a sync separator that separates the sync signal from the signal from the TV phone, 1 to Aphone, and 16 is a sync separator that separates the sync signal from the signal from the video telephone and telephone. This is the second frame memory for storing data.

In the above configuration, the NTSC signal is selected by the tuner 4 and sent to the A/D converter 5.

The NTSC signal is converted from an analog signal to a digital signal by the A/D converter 5. This NTSC signal is then converted into a high-definition signal scanning system by an up-converter 6.

Next, signals from TV telephones, door phones, etc. are extracted by a video signal separator 17, and a sync separator!
8 separates the synchronization signal.

Then, the video signal from the video signal separator 17 is written into the second frame memory 16 using the synchronization signal from the synchronization separator 18.

In addition, data such as the image display position and information display position of the display section 1 from an external input device 13 such as an external switch, which is the image moving means A, is converted into data for the address controller 10 by I/Fil, and the data is sent to the address controller 10. input. The address controller 10 controls the first address of the video signal from the up converter 6 based on the data from I/Fit.
The write address to the frame memory 5 is controlled.

The start write address of this video signal is offset from the start address of the first frame memory 15 in correspondence with the data from the external input device 13. The video data from the second frame memory 16 is read out at the timing of the address controller 1o, and is written into the blank space 2 of the video data from the up converter 6 which is stored in the first frame memory 15. The memory data is read out from the first frame memory 15 of the address controller "O" sequentially from the first address of the first frame memory 15, sent to the D/A converter 12, and converted from a digital signal to an analog signal. However, by outputting the information to the display unit 1, it is possible to display other information in the margin area 2 of the display unit 1 of the high-definition image display device.

(Effects of the Invention) As explained below, according to the present invention, the up-converted image of the color television signal is moved within the display unit, and the image generated by the difference in aspect ratio between the color television system and the high-definition system is doorbell in the blank space,
By displaying information other than the video of the videophone etc., the blank space of the display section of the image display device can be effectively used, and information other than the upcompressed video of the color telephony can be displayed in the margin. This has the effect of being able to transmit other information without causing any loss in the up-converted video.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an image display device according to a first embodiment of the present invention, FIG. 2 is a display example of a display section of the image display device according to a first embodiment, and FIG. 3 is an image of a second embodiment according to the present invention. FIG. 4 is a block diagram of a display device, and FIG. 4 is a display example (part 1) of a display unit of a conventional image display device, and FIG. 5 is a display example (part 2) of the same as above. Note that in each figure, the same reference numerals indicate the same (equivalent) components. 1...Display area 2...Margin area 3...Video obtained by up-converting the NTSC signal 6...Up converter A...Image movement Means B - Information display means

Claims (1)

[Claims] In an image display device that converts a color television signal into a high-definition signal scanning format using an up-converter and displays the image on a display unit, an image moving means that can move the up-converted image to a desired position within the display unit; An image display device comprising: information display means for displaying information other than the video in a blank area other than the video.