JPS63226187A - Television image/satellite image display system - Google Patents

Abstract

PURPOSE:To obtain a video signal from a television signal, as a varicolored display image by a satellite image display technique, and also, to save a television image by sharing an image data storage means, an image data contents display means, and a control means for controlling them provided on the respective systems. CONSTITUTION:A sound signal of a fetched television signal is reproduced by a voice converter 41 and becomes audible sound by a loudspeaker 42, and a video signal is converted from an analog signal to a digital signal by a television signal A/D converter 43. These digitized image signal data from a meteorological satellite and digitized video signal data from the television signal are selected alternatively through a CPU 21 and a data bus part 22 by a selecting operation of a control part 20 having both a function of an operation control part of a satellite image display system and a function of a data control part of a televise image display system, and stored temporarily in an IC memory part 5 equal to that which is used the satellite image display system. As for the data which has been stored temporarily, its contents are recorded or displayed through the CPU 21 and the data bus part 22 by various commands from the control part 20. In such a way, the component can be decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a satellite image receiving system and a television image display system.

[Conventional technology]

Conventionally, image data storage means for displaying satellite images
The image data content display means, the control section for controlling them, and each of these means for displaying television images existed separately.

As a system for displaying satellite images, especially meteorological satellite images, the Institute of Electrical Engineers of Japan's Information Processing Study Group materials (material number:
■P-83-24) ``About GMs (Geostationary Meteorological Satellite: Himawashi) Receiving System''. The structure of the contents disclosed therein is shown as a block diagram in FIG. An outline of the meteorological satellite image display system will be explained below with reference to FIG.

Image signals sent from the geostationary meteorological satellite Himawashi (hereinafter abbreviated as 0MS meteorological satellite) are received by the satellite parabolic antenna 1, input to the RF unit 2, demodulated, and sent to the image processor 3. fax processor 4
are output to each of them. These image processors 3
and fax processor 4 have an A/
It is configured to include a D conversion section and a CPU section, and converts the input image signal from an analog signal to a digital signal, and converts the input image signal into H, I (or J),
The A, BG image signals are stored in the IC memo 9 section 5, and the H image signal from the fax processor 4 is stored in the floppy disk 8. The image signal data stored in the IC memo 9 section 5 is read out by the image processor 3 and displayed on the CRT display 7. or,
Since the storage capacity of this IC memo 9 part 5 is small and only has the capacity for one image, the image processor 3
The image signal data read from the memory section 5 is also transferred to and stored in a data recording section 6 having a large storage capacity. On the other hand, the image signal data stored in the Lua 0TB disk 8 by the fax processor 4 is transferred to the CRT
A fax processor 4 for playback display on a display 7 or for playback recording on a fax photographic device 9.
The image is read out and recorded or displayed as an image.

Further, the operation control section 10 is provided for automatically operating the system and controlling each of the above-mentioned devices.

The display functions of this weather image display system include continuous display that sequentially updates each input image, static display of any one input image, image enlargement/reduction/cutout display/change of display position, image data There is pseudo-color display based on the correspondence with the gradation of the color.

Next, a conventional television image display system will be described. Signal sources of television signals are broadly classified into those from terrestrial television broadcasting stations and those from BS satellites. TV signals from terrestrial TV broadcasting stations are transmitted via a TV antenna to B.
The signal from the S satellite is received by a television parabolic antenna, demodulated by a television signal receiver, and becomes the original television signal transmitted. The extracted television signal is converted into a digital signal and stored in a frame memory having a temporary storage function by the action of the data control section. The stored video signal is read out by the data control section and displayed as an image on the CRT display.

At this time, by using various digital control techniques of the data control section for the frame memory that temporarily stores the video signal, it is possible to display a television image having an anti-flicker function and various other special effects. Digital control technologies include frame synchronizers (FS) and digital video effects (DV), which are the basis of these technologies.
E), noise reducer (NR), digital strobe action (DSA), etc.

[Problem that the invention seeks to solve]

As explained above, in the prior art, the satellite image display system and the television image display system each have separate and overlapping configuration means having the same or similar functions. The present invention eliminates such waste, and
The purpose is to further improve the functionality of image display systems.

[Means for solving problems]

The television image-satellite image display system according to the present invention includes a means for extracting an image signal from a satellite as a digital signal, a means for extracting a television signal as a digital signal of a video signal, and a means for extracting the image signal from a satellite as a digital signal, and a means for extracting the image signal from a satellite as a digital signal. It is composed of means for storing data, means for displaying the contents of digital signal data, and means for controlling and connecting these means.

[Effect]

The number of components is reduced compared to when the satellite image display system and the television image display system each existed independently.

〔Example〕

FIG. 1 shows a block configuration diagram of an embodiment of a television image/satellite image display system according to the present invention. Its configuration and operation will be described below.

Image signal sources in this embodiment include image signals from the GM8 meteorological satellite and the Noah meteorological satellite;
There are television signals from terrestrial television broadcast stations and BS satellites. Image signals from the 0MS meteorological satellite are received by the satellite parabolic antenna 1, and those from the Noah meteorological satellite are received by the satellite antenna 15, and are subjected to low-noise amplification and frequency conversion in image signal receivers 16 and 17, respectively.・0 converter 18 for FM and AM demodulated image signals
and 19, and each image signal is converted from an analog signal to a digital signal. On the other hand, the TV signal from the terrestrial TV broadcasting station is the TV antenna 3.
5, the information from the BS satellite is received by the television parabolic antenna 36. Since the television signal received by the television parabolic antenna 36 is in the SHF band, it is converted to the UHF band by the converter 37 and output to the tuner 38 . The television signal received by the television antenna 35 is output to the tuner 38 as is.

Each television signal input to the tuner 38 is
The TV signal is selectively received, high-frequency amplified, and frequency converted into an intermediate frequency signal, which is amplified by an intermediate frequency amplifier 39.
The signal becomes the original television signal transmitted by the detector 40 and is extracted. Among the extracted television signals, the audio signal is reproduced by the audio converter 41 and turned into audible sound by the speaker 42.
The video signal is converted from an analog signal to a digital signal by a television signal A/D converter 43. These digitized image signal data from meteorological satellites and digitized video signal data from television signals are processed by a control unit that has both the functions of an operation control unit of a satellite image display system and a data control unit of a television image display system. 1c by 20 selection operations
A selection is made via the PU 21 and the data bus unit 22 and temporarily stored in an IC memory unit 5 equivalent to that used in a satellite image display system. The contents of the temporarily stored data are recorded or displayed via the CPU 21 and the data bus section 22 according to various commands from the control section 20.

The recording means include a floppy disk 8 having a large storage capacity, a hard disk 24, and a VTR 2 for long-term storage of data recorded on the node disk 24.
5. There is a hard copy 26 for copy records. The display means includes a video converter 27 that converts a digital signal into a signal that can be displayed on a CRT display T, and a CRT display T that can visually recognize the signal as an image.

Incidentally, the automatic or manual control section 20 sets the storage method when storing digitized signal data in the IC memo 9 section 5, and stores the digitized signal data in the IC memo 9 section 5.
By setting the readout method when reading out from part 5, it is possible to obtain various images and functions that could not be obtained when the television image display system and the meteorological satellite image display system existed independently. becomes possible. For example, any one image from a moving image from a TV signal can be extracted as a still image, and this image can be enlarged, reduced, cropped, displayed, changed display position, interpolated between lines, edge emphasized, etc. Since image processing is possible and hard copies can be made, it is also possible to record copies of those television images.

Further, weather images are automatically selected by the control section 20 only when the images are sent, and are sent to the floppy disk 8, hard disk 24, V via the IC memo 9 section 5.
The stored data is stored in the TR25, and if necessary, the stored data is displayed on a television image using the high-definition NTSC or high-definition television scanning system, which has the above-mentioned anti-flicker function and special effects function using digital control technology, and is used as a weather forecast information source. It can also be used to diversify information sources for television broadcasting.

In addition, by sharing the image data storage means, the image data content display means, and the control means for controlling them, the storage capacity of the TV frame memory can be increased.
Furthermore, since the number of components is reduced, the system can be made smaller and its reliability can be improved.

FIG. 2 shows a satellite parabolic antenna 1 for receiving image signals from an 0MS meteorological satellite and a television parabolic antenna 36 for receiving television signals from a BS satellite in the same pole in the television image/satellite image display system according to the present invention. 30
An example is shown below.

The 0MS meteorological satellite is at 140° east longitude, and the BS satellite is at 110° east longitude.
Although it is not possible to use one parabolic antenna in common on the equator of 20°, it is possible to install each parabolic antenna on the same pole 30 facing different directions, as shown in Figure 2. It is possible.

The diameter of the outer periphery of the satellite parabolic antenna 1 for the 0MS meteorological satellite is about 1 m to 1.2 m, and the outer diameter of the TV parabolic antenna 36 for the BS satellite is about 75 cIrL to 1 m, and the poles that support them are naturally large. Become. Therefore, by sharing these poles, the installation space can be narrowed down, land can be used more effectively, and the labor and materials required for installing the poles can be halved.

〔Effect of the invention〕

As explained above, the television image/satellite image display system according to the present invention can display television images by sharing the image data storage means, the image data content display means, and the control means for controlling them. This system makes it possible to obtain video signals from television signals as a variety of display images using satellite image display technology, and to save television images, which would not be possible if both the satellite image display system and the satellite image display system existed independently. Furthermore, the information sources from which images are obtained are diversified, and the display system can be made smaller and more reliable.

Furthermore, by installing a satellite parabolic antenna and a television parabolic antenna on the same pole, it is possible to make effective use of land and reduce the labor and materials required for installing the pole by half.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the television image/satellite image display system according to the present invention, and FIG. 2 shows a satellite parabolic antenna and a television parabolic antenna installed on the same pole in the television image/satellite image display system. FIG. 3 is a block diagram showing a conventional meteorological satellite image display system.

Claims (2)

[Claims] (1) a satellite antenna that receives an image signal from a satellite; an image signal receiver that demodulates the received image signal;
An image signal A/D converter that converts the output image signal from the image signal receiver from an analog signal to a digital signal, a television antenna that receives the television signal, and a television signal receiver that demodulates the received television signal. and a television signal A/D converter that converts the output video signal from the television signal receiver from an analog signal to a digital signal;
a memory section that stores these obtained digital signals;
Consists of a display unit that displays the stored data contents as images, a control unit that controls each of these units, and a data bus unit that connects these A/D converters, memory units, display units, and control units. TV image/satellite image display system. (2) A satellite antenna that receives image signals from a satellite is a satellite parabolic antenna, and a television antenna that receives television signals is a television parabolic antenna,
A television image/satellite image display system according to claim 1, wherein these parabolic antennas are installed on the same pole.