SU594498A1 - Arrangement for displaying information on tv screen - Google Patents

Description

(54) DEVICE FOR OUTPUT INFORMATION ON A TELEVISION SCREEN

The invention relates to computing and can be used to output information to display devices using a raster method of generating display information.

A device for outputting information to a television screen is known, comprising a character generator, a graphic element generator, registers, a clock generator, a television scanner unit and a logic element unit 1.

The tail of the ball is a large amount of equipment.

The device that is closest to the proposed device is a device containing a control signal distributor, whose input is connected to the first input of the device, and the output through the backlight generator is connected to the first input of the backlight selector switch, the output of which is connected to the first input of the graphic element video signal generator, the second the input of which is connected with the output of the graphic elements decoder, the input of which is connected to the second input of the device, the line decoder whose input is connected n to the third input device, graphical elements shaper output video is connected to the first output device 2.

The known device has a narrow scope due to the impossibility of the simultaneous formation of symbolic and graphic information.

The purpose of the invention is to expand the field of application of the device due to the simultaneous formation of symbolic and graphic information in the area of a given dot matrix.

To do this, a character decoder, a character video character shaper and a backlight synthesis unit are entered into the proposed device, the input of which is connected to the output of the selector of the light signals, and the output is connected to the first input of the character video signal generator, the second input of which is connected to the fourth input of the device, the output the symbol maker is connected to the second output of the device, and the line decoder output is connected to the second input of the backlight selector.

The drawing is a block diagram of the device.

It contains a control signal distributor 1, a generator of 2 illumination sigals, a selector of 3 illumination signals, a power converter

4 lines, block 5 of the synthesis of signals illumination.

a decoder of 6 graphic elements, a decoder of 7 characters, a driver of 8 video signals of graphic elements, a driver of 9 video signals of symbols, the first 10, second 11, third 12 and fourth 13 inputs and first 14 and second 15 outputs of the device.

The selector 3 consists of elements 16-18 selection, performed, for example, on the logical elements of AND-OR, the number of which corresponds to the number of generated graphic elements.

The device works as follows.

The input of the distributor 1 of the control signals simultaneously with the code of the line arriving at the input 12, and the codes of the characters or graphic elements supplied to the inputs 13 and I receive a trigger signal. The output signals from the output of the distributor 1, shifted in time, are fed to the input of the generator 2, which forms the code combination of the signals for the illumination of individual graphic elements. The number of variations of the illumination signals is determined by graphic drawing on a rectangular grid of graphic elements, the synthesis of which provides for the formation of signs and graphic images, such as contour maps, histograms, table blanks, network and functional graphs.

From the output of the generator 2, the generated code combinations arrive at the input of the selector 3, in which, under the influence of the output signals of the decoder 4 lines, the backlight signals received at the input of the selector 3 are selected.

As a result, the outputs of the selection elements of the selector 3 synchronously form the illumination signals of the corresponding graphic element, which arrive at the input of block 5, in which, by synthesizing the signals for the light of the individual graphic elements, the signals of the character illumination are formed. From the output of the block

5shaped signals of symbol illumination are fed to the input of the imaging unit 9 of video signals of symbols, and the input of the imaging unit 8 of video signals of graphic elements receives a signal of illuminating graphic elements. Each of the drivers 8 and 9 is controlled autonomously by signals from the outputs of the decoders

6 and 7 graphic elements and symbols. Under the influence of the control signals of the decoders 6 and 7, the video signals of the graphic information are formed at the output 14 of the driver 8, and on. output 15 shaper 9 - video signals of characters.

Thus, this device provides simultaneous and independent generation of graphic and symbolic information at the output of the device, with the formation of the illumination signals of individual graphic elements being an integral part of the process of generating the signals of the symbol illumination.

This provides a decrease in instrumental

g costs due to repeated use

in the synthesis of symbols of graphic elements,

simultaneously participating in the formation

graphic information.

Claims (2)

1. Television methods and information display devices, Coll. articles ed. M. Krivosheeva, M., “Owls. radio, 1975, p. 72. 2. US patent number 3493938, iOi. 340-173, 1973. B4. “Well