JPS63100892A - Still picture transmission equipment - Google Patents

Abstract

PURPOSE:To display plural picture data of a sent television signal timewise simultaneously or sequentially by selecting a picture data to be displayed among a received data memory based on a signal from an output indicator having a timer in its inside and displaying the selected picture. CONSTITUTION:A picture data by a television signal from, e.g., a television camera 2 is sent to a reception data memory 16 and stored based on a transmis sion command signal S2. An output control section 17 uses an output signal from an output signal device 18 based on the timing of a timer 19 to select the first picture data, that is, the picture data sent by an input command signal S1, this picture data, that is, the picture data sent by an input command signal S2 and a 2-split picture data while reducing the data as one pattern and extracts a selected picture data from the reception data memory 16. The extracted picture data is converted into an analog signal via a D/A converter 20 and fed to a television monitor 21 and displayed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for displaying a plurality of image data t1 of a television signal transmitted simultaneously or sequentially in time, including a plurality of simultaneously displayed images. The present invention relates to a still image transmission device.

[Conventional technology]

FIG. 3 is a block diagram showing a conventional still image transmission apparatus disclosed in, for example, Japanese Patent Laid-Open No. 118127/1983.

In the figure, 1 to 4 are television cameras, 5 is a signal switch connected to each of these television cameras 1 to 4, and 6 to
9 is an input terminal for inputting a transmission instruction signal; 101 is a transmission instruction device connected to the signal switching device 5 and outputting a transmission instruction Z according to the transmission instruction signal from each of the input terminals 6 to 9; 11 is a signal switching device; An analog/digital converter (hereinafter referred to as A/D converter) connected to the converter 5, 12 is this A/L)
A transmission data memory 13 connected to the converter 11 and storing image data for transmission;
2 and data to the transmission line? Transmitting section for sending out, 14
The transmission line 15 is connected to the transmitter 16 via the transmission line 14, and together with these, a transmission means! 16 is a reception data memory connected to this reception unit 15 and stores received data Z; 20 is a digital e-analog converter (hereinafter referred to as L)/A converter connected to this reception data memory 16; 21 is a television monitor connected to this D/A converter 20.

FIG. 4 shows the television monitor 2 of the still image transmission device shown in FIG.
This is an explanatory diagram showing the screen displayed at 1. This is an explanatory diagram showing the image transmitted as instructed by the transmission instruction signal inputted to the transmission instruction device 10, and the image transmitted according to the instruction from the input terminals 6 to 9. % and displayed all at once on the same screen.

Next, the operation will be explained.0 First, when a transmission instruction signal S is input from the input terminal 6, and a transmission instruction is given to the signal switch 5 from the transmission instruction device 10, this transmission instruction causes, for example, a television camera 1 The imaged television signal is taken in by the signal switching device 5 and converted from analog signal to digital signal image data by the A/D converter 11. This digitally converted image data is sent to the transmission data memory 1.
2 is stored. Further, the image data thus stored is sent to the transmission path 14 via the transmitter 13Y.

The image data from the transmission path 14 is received by the receiving unit 15 n1
The received data is stored in the memory 16. Further, the image data stored in the reception data memory 16 is converted into an analog signal by a D/A converter 20 and is supplied to the n1 television monitor 21 at the input terminal 7 almost at the same time.
~? If transmission instruction signals St, . . . Supplied. As a result, as shown in FIG. 4, for example, the television monitor 2
1, images taken by television cameras 1 to 4 are displayed after being reduced to %.

[Problem that the invention seeks to solve]

Since the conventional still image transmission device is configured as described above, when a transmission instruction signal is received within a short time and an image is transmitted, the reduced image 2 must be displayed.
Images that are difficult to see will be displayed, and if displayed without being reduced, only the most recently transmitted image will be displayed.
There were problems such as the need to display the image and other images not being displayed.

This invention was made to solve the above-mentioned problems, and it is possible to simultaneously display multiple image data of television signals that are transmitted temporally or sequentially! It is an object of the present invention to provide a still image transmission device capable of sequentially displaying images including images.

[Means for solving problem χ]

The still image transmission device according to the present invention captures a plurality of television signals while switching them using a signal switch, stores the captured television signals in a transmission data memory, reads out the stored television signals, and transmits the signals to the transmission means! This TV signal is transmitted to the receiving end through! A screen that is one of the current and previous received data stored in the received data memory and reduced to one screen in response to a transmission start instruction from the indicator, which is stored in the received data memory, and a timer function. The output control device is configured so that the output controller is selected and displayed according to the instruction from the output indicator.

[Effect]

The output controller in this invention has an internal timer! The image data to be displayed is selected from the received data memory based on the regular or irregular output instruction signal from the output indicator with the selected image data. It acts to display an image.

〔Example〕

Hereinafter, a second embodiment of the present invention will be described. 1st
In the figure, 1 to 4 are television cameras, 5 is a signal switch,
6 to 9 are input terminals; 10 is a transmission indicator as an indicator for instructing Z to start transmission of image data; 11 is an A/D converter;
12 is a transmission data memory, 13 to 15 are a transmission section, a transmission path, and a reception section forming a transmission means, 16 is a reception data memory, 20 is a D/A converter, and 21 is a television monitor. These are equivalent to the conventional ones, which are denoted by the same reference numerals in the figures. Further, 17 is the received data memory 1
Image data connected to 6 and output! an output controller for selecting and outputting image data to the D/A converter 20 for display; 18; an output indicator for instructing the output of image data by providing an output signal to the output controller 17; 19 an output; Indicator 1
8 is a timer that gives the timing of the output instruction. FIG. 2 shows the screen displayed on the television monitor 21 of the still image transmission device shown in FIG. 1 above! In the explanatory diagram shown, input terminals 6 to 9
After the image is sent by inputting the transmission instruction signal to
It should be displayed sequentially from left to right on the top row, then from left to right on the bottom row, then back again to the left on the top row, and displayed sequentially from left to right! This is what is shown.

Next, the operation will be explained. When a transmission instruction signal S is input from the I-1 signal input terminal 6 and a transmission instruction is given to the signal switch 5 from the transmission instruction device 10, this instruction causes
For example, a television signal imaged by a television camera 1 is taken in by a signal switching device 5, and a ZA/DiA/D converter 11 converts the log signal into image data of a digital signal and stores it in a transmission data memory 12. The image data thus stored is sent to the transmission path 14 via the transmitter 13v. The image data from the transmission path 14 is received by the receiving section 15 and stored in the received data memory 16.

Instruct the output indicator 18 to output based on the timing from the timer 19! It is given to the output controller 17. The output controller 17 selects the image data to be output based on this output instruction, but since this image data is the only image data at present, this image data is always selected and read out from the received data memory 16. and sent to the D/A converter 20. The image data thus sent to the D/A converter 20 is converted into an analog signal here and supplied to the television monitor 21.

Next, thereafter, the transmission instruction signal S! is sent from the input terminal 7! is input, based on this transmission instruction signal St, image data based on a television signal from, for example, the television camera 2 is transmitted to the signal switcher 5, the A/D converter 11, and the transmission data memory 1.
2. The data is sent to the received data memory 16 via the transmitting section 13, transmission path 14, and receiving section 15, and is stored therein. Output controller 1
7 is the timing of timer 19! The first image data according to the output signal from the original output signal device 18, that is, the image data transmitted according to the input instruction signal S1, and the current image data, namely the image data transmitted according to the input instruction signal S, Select one of these two-split image data that has been reduced to one screen, and select the selected image data χ
The received data is taken out from the memory 16. The extracted image data is converted into an analog signal via a D/A converter 20, and is supplied to a television monitor 21 for display. At this time, assume that the image data transmitted by the input instruction signal S is selected, for example. Next, when a timing is given from the timer 19 and the output indicator 18 gives an output signal to the output controller 17, the output controller 17 selects image data 1 to be displayed next. At this time, for example, two-split image data is selected. Thereafter, in the same way, the image data transmitted by the input instruction signal S1 is sequentially selected at the next timing, and then the two-part image data is selected, and when this is repeated, the image data transmitted by the input instruction signal S, Input instruction signal S! While the images based on the image data transmitted by are displayed alternately, a plurality of simultaneously displayed images based on the two-part image data are displayed, and each image can be checked individually or simultaneously on the television monitor 21.

Furthermore, a transmission instruction signal S is input from the input terminal 8,
Next, when the transmission instruction signal S4 is input from the input terminal 9, these transmission instruction signals S5. Based on S, for example, a television signal from the television camera 6 and a television signal from the television camera 4 are stored as image data in the received data memory 16 in the same manner as described above. Taroma 19 to output controller 17
The image data to be displayed is selected based on the output instruction signal t from the output instruction device 1B according to the timing from A/L).
Converter 20 converts it into an analog signal and sends it to the TV monitor 2
Supply to 1. Thereafter, based on the output instruction signal from the output instruction device 18 according to the timing of the timer 19, the output controller 17 outputs the image data according to the transmission instruction signal S, the image data divided into four parts, the image data according to the transmission instruction signal S, and the image divided into four parts. data, image data based on transmission instruction signal S, 4-divided image data, image data based on transmission instruction signal S4, 4
Image data based on divided image data, transmission instruction signal S,
As shown in the WJz diagram, while the images corresponding to the image data based on the input instruction signals 81 to S4 are sequentially displayed, a plurality of simultaneously displayed images based on the 4-split image data are displayed on the TV monitor 21. will be displayed.

In the above embodiment, the transmission indicator 10y is used as an indicator for instructing the start of transmission, and the image data (television signal) is transmitted according to the input of the transmission instruction signal. Something to get started!
Although shown, a reception instruction device may be provided on the receiving side and transmission of image data may be started in accordance with input of a reception instruction signal. Further, in the above embodiment, there are 1 to 4 television cameras and 6 to 974 input terminals, but the number of television cameras may be one or more, and the number of input terminals may also be one or more. Further, in the display order, the divided screen is arranged between the individual image displays, but it may be displayed after the individual image display, and the same effect as in the above embodiment can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, images of television signals from a plurality of television cameras are stored in the booter reception data memory, and among the stored image data, current and previous image data or reduced multiple divided images data! The configuration is such that the output controller selects the images one by one and displays them on the TV and monitor, so even when a large number of images are being transmitted, there is no need for manual intervention! This has the effect of providing a still image transmission device in which an unreduced screen and a plurality of simultaneously displayed screens can be confirmed without intervention.

[Brief explanation of the drawing]

FIG. 1 is a block connection diagram showing a still image transmission device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing an example of displaying still images, and FIG. 3 is a conventional still image transmission device! The block connection diagram shown in FIG. 4 is an explanatory diagram showing an example of displaying a still image. 1.2.5.4 is a TV camera, 5 is a signal switch, 6,
7.8.9 is an input terminal, 10 is a transmission indicator (indicator),
11 is A/L) i exchanger, 12 is sending data memo +7.1
3H transmitter, 14 is a transmission path, 15 is a receiver, 16 is a received data memory, 17 is an output controller, 1B is an output indicator,
19 is a timer, 20 is a D/A converter, and 21 is a TV monitor. In addition, in the figure, the same reference numerals indicate the parts corresponding to field-1. Patent applicant Mitsubishi Electric Corporation Figure 1 Figure 2

Claims (2)

[Claims] (1) A signal switching device that switches and outputs multiple television signals, a transmission data memory that stores image data based on the television signal output from this signal switching device, and transmits the image data read from this transmission data memory. a receiving data memory for storing the image data inputted through the transmitting means, an indicator for instructing the start of transmission of the image data, and an output of the image data stored in the receiving data memory. an output controller for controlling the output controller; and a selection for the output controller of either image data corresponding to the television signal stored in the reception data memory, or divided image data for displaying them simultaneously. A still image transmission device comprising: an output indicator for instructing the selection, a timer for giving the output indicator a timing for instructing the selection, and a television monitor for displaying an image according to the selected image data. (2) The still image transmission device according to claim 1, wherein the indicator is a transmission indicator that instructs the start of transmission by a transmission instruction signal.