SU1043731A1 - Device for displaying information on television receiver screen - Google Patents

Abstract

A DEVICE FOR DISPLAYING INFORMATION ON A TELEVISION RECEIVER SCREEN, containing a serially connected data input unit, a memory unit, a symbol generator, a shift register, a video signal generator connected to a television receiver, successively connected to a synchronization unit, the second output of which is connected to the second input of the television receiver, sequentially connected to the synchronization unit, the second output of which is connected to the second input of the television receiver, sequentially connected to the synchronization unit, the second output of which is connected to the second input of the television receiver, sequentially connected to the synchronization unit, the second output of which is connected to the second input of the television receiver, synchronized to the synchronization unit. video signal, television line counter and text line counter and successively connected counter of the familiarity decomposition elements, the input of which is connected to tert the output of the synchronization unit, and the second output - to the second input of the shift register, and the familiarity counter in the line, characterized in that, in order to expand the field of application of the device due to the possibility of displaying data arrays that exceed the information capacity of the screen, it contains series-connected counter, records by line, trigger by line, ks mutator by line, the second output of which is connected to the first input of record counter by line, and the register of constants by line, the first output of which is connected n to the second input of the record count by line and trigger by line, sequentially connected frame record by frame, trigger: by frame, switch by frame, the second input and the second output of which are connected respectively to the first output of the register of constants on the line and the first input of the record counter by frame, and the register of constants on the frame, the first output of which is connected to the second input of the record counter on the frame, the scanning unit of the memory, the outputs of which are connected respectively to the second input of the registers of constants on the line and on the frame and a third (L to it of trigger input per line and frame, connected in series to the address switch on the line, the first input of which is connected to the output of the counter familiarity in the line, the second input to the second output of the counter, recording on the line, and adder the second input is connected to the second output of the register of constants, line by line, and the output is to the memory block, 4 and the address switch in series, the first of which is connected to the output of the text line counter, the second input to the second output of the record counter by adru and adder. the frame, the second input, which is connected to the second output of the register of constants per frame, and the output to the memory unit, the third input of the address and line switches across the frame is connected to the second output of the data input unit, and the second output of the TV row counter is connected to the second input character generator.

Description

The invention relates to computing and is intended for use in information display systems when displaying it on a viewing screen. A device for displaying information on a television screen, comprising, as main units, a data input unit, a memory unit, a symbol generator, a video signal generator and an indication unit l. The closest in technical essence to the present invention is a device for displaying information on the ECU of a television receiver, which contains serially connected video driver and display unit, sequentially, connected counter of elements of familiarity and counter familiarity in the line, sequentially connected counter of television lines and a text line counter, a serially connected memory block and a character generator, a data input block 2j. However, the known device has a limited scope, since it does not allow working with data arrays whose dimensions exceed the information capacity of the screen. This is due to the absolute addressing of the memory block, in which familiarity on the television screen corresponds to strictly defined memory cells, the search of which always begins with a zero address. The aim of the invention is to expand the field of application of the device due to the ability to display data arrays whose dimensions exceed the information capacity of the screen. The goal is achieved by the fact that a device for displaying information on a television receiver screen contains serially connected data input unit, memory unit, symbol generator, shift register, video signal generator connected to television receiver, serially connected synchronization unit, the second output of which is connected to the second input. video signal maker, TV line counter and text line counter and serially connected counter of decomposition elements: The input, whose input is connected to the third output of the synchronization unit, and the second output to the second shift register register, and the familiarity counter in the row, contains a row-connected record counter, a string trigger, a switch on the row, the second output of which is connected to the first input a record count on a line, and a register of constants on a row, the first output of which is connected to the second input of a record count on a row and a trigger on a row, connected in series to a write counter on kg-frame, trigger on a frame, switch n about the frame, the second input and the second output of which are connected respectively to the first output of the register of constants on the line. and the first input of the record count on the frame, and the register of constants on the frame, the first output of which is connected to the second input of the frame recording record, the memory scanning unit, the outputs of which are connected respectively to the second input of the registers of constants on the line and on the frame and the third input of the triggers on the line and on the frame, sequentially connected address switch on the line, the first input of which is connected to the output of the counter familiarity in the row, the second input to the second output of the record counter for the row, and the adder for the row, the second input of which is connected to the second, the output of the register of constants for the row, and the output to the memory unit, and sequentially connected to the switchboard by frame, the first input of which is connected to the output of the row counter., the second input - to the second output of the frame write counter, and the adder on the frame, the second input of which is connected to the second output of the register of constants on the frame, and the output to the memory block, t-rety input switches addresses by row and a frame coupled to the second output of the data input unit, and the second output television line counter coupled to the second input of the character generator. The drawing shows a structural diagram of the proposed device. The device contains sequentially switched on synchronization block 1, a counter of the familiarization elements 2, a familiarity counter 3 in a line, a switch 4 addresses per line, an adder 5 in a line, a block 6 of memory, a generator of 7 characters, a shift register 8, the second input of which is connected to the second the output of the counter 2 elements of familiarity decomposition, the driver 9 of the video signal, the second input of which is connected to the synchronization unit 1, and the television receiver 10, are connected in series with the counter 11 television lines, the input of which is connected to the unit 1 synchronization, and the second output is connected to a generator of 7 characters, a counter of 12 lines of text, a switch 13 addresses per frame and an adder, 14 per frame, serially connected counter 15 records per line, the second output of which is connected to the second input of switch 4 addresses per line , trigger 16 on the line, switch 17 on the line, the second output of which is connected to the first input of the counter 15 records on the line and the register 18 of constants on the line, the second output of which is connected to the adder 5 on the line, connected in series by the counter 19 records on the frame, the second Exit which is associated with the address of kommutatorom.13 frame trigger20 on the frame, the switch frame 21, the second output. which is connected to the first input of the counter 19 records on the frame, and the second input is connected with the second output of the register 18 constants on the line, the third input of the trigger 16 on the line and the second input of the counter 15 records on the line and the register 22 constants on the frame, the first input of which is connected to the second input of the sukmator 14 on the frame, and the second output is connected to the second input of the trigger 20 on the frame and the second input of the frame 19 record frame, block;, 23 memory scanning, the outputs of which are connected respectively to the second input of the register 22 frame, to the second the trigger 16 on the line, the third input of the trigger 20 on the frame and the second input of the register 18 constants on the line, the data input unit 24, the first input of which is connected to the first input of the memory block 6, and the second output is connected to the third input of the switches 4 and 13 addresses by line and by frame and to the second input of Koi Lutuor 17 in line.

The synchronization unit 1 can be made in the form of a high-frequency generator connected to the input of a counter, connected to the inputs of the decoder, forming at the output standard line and curvace quenching pulses.

Register 18 constants-on-line and register-22 constants on the frame are reversible counters (K155IE7).

The memory scanning unit 23 can be made in the form of a generator and four keys, which, depending on the key pressed, pass pulses from the generator to the direct or inverse inputs of register 18 on a line and on register 22 on a frame.

The data input unit 24 is a keyboard, at the output of which, when you press any key, a parallel symbol information code is formed, followed by a recording strobe and a switch commutator gate and addresses on the line and address switch 13 on the frame.

Video signal generator 9 is implemented as an analog mixer, which provides a complete television signal that is fed to the video signal of the television receiver 10, which can be any television receiver or video 5 control device.

The device works as follows.

When recording information in block 6

o memory and reading information from this block; the write mode takes precedence over the read mode. Suppose that some information 5 qi has already been written to memory block 6, consider the mode of reading this information from memory block 6. Clock pulses from the output of the synchronization block G are fed to the counting input of the counter 2 decomposition familiarity,

Q at the output of which there appear transfer pulses with a frequency corresponding to the horizontal size of the matrix of the symbol, which pass to the counting input of the counter 3 familiarity in the line forming the binary code at the output,

5 uniquely identifies the position of the symbol on the television screen rfo horizontal. The binary code from the output of the counter 3 familiarity in the line through the switch 4 addresses on the sub-line.

 It is fed to the first input of the adder 5 in a row and is summed with the binary code received at its second input from the first output of register 18 in a constant for a row. The output code of the adder 5 on the line determines the lower addresses of the cell memory selected from block 6.

At the other output of the synchronization unit 1, lowering damping pulses are formed, which are fed to the input of the counter of 11 television lines, at the output of which transfer pulses appear with a frequency corresponding to

With the vertical size of the character matrix, which is passed to the counting input of the counter, 12 lines of text forming on the output a binary code that uniquely identifies the position of the character on the television screen is ipodikali. Binary code from the output of the counter 12 lines of text through the address switch 13 is sent to the first input of the adder 14 through the frame and added to the binary code, nocty5 is fed to its second input from the first output of the constant register 22 by the frame. The output code of the adder 14 frame determines the high-order bits of the address selected from the block 6 memory

0 cells Memory unit 6 has a matrix structure, i.e. minor bits. the addresses define the column, the leading bits of the row, and at each time point a cell will be selected,

5 move in the place of their intersection.

Let memory block 6 have a capacity m p, where m is the number of characters in the memory line, n is the number of columns, and the information capacity of the television screen is k X X in, where k is the number of characters displayed on the television screen in the line, 6 - the number of lines of text, and m, I p, i.e. screen information capacity is less than memory capacity. If we denote the constants formed at the output of register 1b by constants in a row and register 22 in a frame by a and b, respectively, then the memory zone displayed on the television screen is expressed by the formula

((b + e) -b.

The constants can be changed by supplying control signals from the first and third outputs of the memory scanning unit 23 to the second inputs of the constant register 18 in a row and the constant register 22 in a frame, and it is possible to scan the memory in a row and frame separately. The constant a can vary from a-O to a t-k, the constant b from b 0 to b P-8.

When enumerating the addresses of the memory block, a selectable character code appears at its output, arriving at the first input of the generator of 7 characters, the second input of which receives the code of the number of the television line from the second output of the counter 11 television lines. The symbol generator 7 generates, at the output, a code corresponding to the outlines of the selected symbol, which is written in parallel to the shift register 8 and is shifted by clock pulses coming from the second output of the counter 2 decomposition elements to the second input of the shift register 8 to the video signal generator 9. At the second input of the imaging unit 9 of the video signal, clock pulses are received from the synchronization unit 1, and the output is a standard television signal, which is fed to the video input of the receiver 10.

Let's look at the mode of recording information in the memory block.

From the first output of data input unit 24, information and a recording strobe arrive at the first input of memory unit 6. The control signal from the second output of the data input unit 24 is fed to the third input of the switch 4 addresses per line and to the third input of the switch 13 addresses per frame, nepe-i key switches so that the second input of the adder across line 5 is connected to the second output of the counter 15 of the record on fcTpoKe, and to the first input of the adder 14 frame is connected

the second output of the counter 19 records frame. Before recording, trigger 16 on the line and trigger 20 on the frame are set to zero by applying a pulse from the second output of the memory scanning unit 23, from the third and first outputs of which signals that set the constant register 18 on the line and the constant register 22 on the frame to zero, and also set to zero the counter 15 entries for row and count

19 frame records.

The data in memory block 6 will be entered at the address that is determined by the output code of adder 5 per line and the output code of adder 14 per frame, before starting to record these codes are equal to zero.

Trigger 16 nd line and trigger

20 in the frame is walked off in a reset state, with the second input of the switch 17 in the row connected to its second output, and the second input of the switch 21 in the frame connected to its second output. After writing to the block

6 of the first character memory, the line record counter 15 is transferred to the next state by a pulse from the second output of the data input unit 24. When the entire line (first) is filled with characters on the first output of the line record 15, a transfer pulse is generated which cocks the trigger 16 on the line, the switch 17 on the line switches so that the second input is connected to its first output. Now the register 18 of the constant in the string is filled with pulses, from the second code of the data input block 24. With this, the next recordable character is always displayed on the last familiarity in the TV line. After filling the entire line of Memory 6, the register 18 of the constant by line generates a transfer pulse at the second output, which resets the record counter 15 and the trigger 16 at the second output, and also passes to the first input of the record counter 19 across the frame and translates its next state, corresponding to the entry in the next line of text. After filling all the packet lines on the television screen, a transfer pulse arises on the first output of counter 19 of the frame recording, which triggers trigger 20 on the frame, switching to yt atop 21 frame by frame so that the second input is shedin VTS with its first output, i.e. the register 22 of the constant over the frame will begin to be filled with transfer pulses from the second output of the register 18 of the constant per line. After the entire memory block 6 is completed, a pulse appears at the second output of the constant register 22.

transfer, setting the counter 19 records for the frame and the trigger 20 for the frame to zero. The counter 15 records on the line and the trigger 16 on the line at the same time will be reset to zero by the transfer pulse from the second output of the register 18 constants on the line, i.e. At the output of the adder 5, zeroes appear in the line and at the output of the adder 14 in the frame, the codes of zeros appear and the recording process is repeated.

The use of the proposed device, compared with the known,

allows you to significantly expand the field of application of the device by increasing the size of the block pginti by an arbitrary number of times compared to the information capacity of the television screen, while the format of PGM (number of characters per line and number of lines) can be any, as well as due to the possibility of displaying any zone memory, the value of which is equal to the information capacity of the screen, with the possible smooth sequential viewing of the entire array of memory.

Claims (1)

DEVICE FOR DISPLAYING INFORMATION ON THE SCREEN OF A TELEVISION RECEIVER, comprising a series-connected data input unit, a memory unit, a character generator, a shift register, a video signal conditioner connected to a television receiver, a synchronization unit connected in series, the second output of which is connected to a second input of the video signal conditioner, a television line counter and counter of lines of text and sequentially connected count. the number of decomposition elements is the familiarity, the input of which is connected to the third output of the synchronization unit, and the second output is connected to the second input of the shift register, and the familiarity counter in the line, characterized in that, in order to expand the scope of the device due to the ability to display data arrays whose sizes exceed the information capacity of the screen, it contains a counter connected in series, records on a line, a trigger on a line, a switch on a line, the second output of which is connected to the first input of the recording counter on a line, and a register of constants per line, the first output of which is connected to the second input of the recording counter per line and trigger per line, sequentially connected recording counter per frame, trigger: per frame, switch per frame, the second input and second output of which are connected respectively to the first output of the register constants for the line and the first input of the recording counter per frame, and a register of constants for the frame, the first output of which is connected to the second input of the recording counter per frame, a memory scan unit, the outputs of which are connected respectively to W the first input of constant registers by line and by frame and the third input of triggers by line and by frame, the address switch is connected in series by line, the first input of which is connected to the output of the counter is familiar in the line, the second input is to the second output of the write counter by line, and the adder on cGro'ke, the second input of which is connected to the second output of the constant register, by line, and the output is to the memory block, and the address switch is connected in series by frame, the first input of which is connected to the output of the text line counter, the second input - to the second output of the recording counter by frame, and the adder by. frame, the second input, which is connected to the second output of the register of constants per frame, and the output to the memory unit, the third input of the address switches per line and frame is connected to the second output of the data input unit, and the second output of the television line counter is connected to the second input of the generator characters.