SU1515157A1 - Arrangement for displaying information on tv display screen - Google Patents

Abstract

The invention relates to automation and computing and can be used to display information from a computer. The purpose of the invention is to increase the information content of the device by displaying the selected symbols by tilting. This is achieved by introducing register 16, shift register 17, multiplexer 18, block of elements OR NOT 19, seventh trigger 20, element EXCLUSIVE OR 21, and corresponding functional connections. 1 il.

Description

(L

31515

The invention relates to automation and computing and can be used to display information from a computer.

The purpose of the invention is to increase the information content of the device by displaying all the symbols by tilting.

The drawing shows a block diagram of the device.

The device contains a television indicator 1, a one-shot 2, a block 3 of conjugation, a character generator 4, the first shift register 5, the first — fifth triggers 6–10, the AND-HE element 11, the first OR-HE element 12, the sixth trigger 13, 14 pulse generator, second shift register 15, register 16, third shift register 17, multiplexer 18, block 19 of elements OR NOT, seventh trigger 20, element of TYPE, OR 21, element of AND 22.

As an interfacing unit 3, a CRT controller K580VG75 can be used.

The device works as follows.

After power is turned on, renepviori 14 begins to produce clock signals. Register 15 is set to an arbitrary state. On the falling edge of the clock pulses, arriving 1; they are at the clock input of the register 15, this arbitrary combination is shifted. After the first 1 shifted combination is wits on the third output of register 15 (the highest bit of the group of outputs of register 15), on the leading edge of the next generator output 14 of the sixth, trigger 13 is set to state 1. After that 1 is set to control the input of the register 15, transfer it to the parallel recording of information. At the same time, on the falling edge of the clock pulse information (for example, 00000001 from the group of parallel inputs of register 15 is written to this register. At the same time, this combination is set at the outputs of the group. On the leading edge of the next clock pulse, the sixth trigger 13 changes to O leads to the switching of the register 15 to the information shift mode. The subsequent clock pulses from the generator output 14

0

five

J

0

s

j her

0

35

40

50

the sync serial 00000001 is shifted until the third output of the register 15 is set to 1 again, which again sets the sixth trigger 13 to the state 1, writes the sync serial 00000001 to the second register 15, shifts it, etc.

The process is repeated cyclically. At the same time, in each cycle, the synchroser is rewritten to register 15 each time. The tilt command of the symbols is issued by the conjugation unit 3 as 1 at the eighth output, which sets the seventh trigger 20 on the leading edge of the pulses generated at the output of the sixth trigger 13 to state 1 At the inverse output of the seventh trigger 20, and therefore, at the first inputs of the elements OR of NOT group 19, level O is set. As long as the first inputs of the elements of the OR-NOT group are set to level 1, the address inputs of the multiplexer 18 will also contain zeros and information from the output of the register 5 will be passed to the output. A logical O arriving at the first inputs of the elements of the OR-NOT group from the inverse exit of the seventh trigger 20, allows passage of the code of the current line number from the codes of the register 16, intended for its storage. In this case, the code of the current line number is inverted. Depending on the code of the current line number set at the address inputs of the multiplexer 18, the output of the multiplexer 18 passes information either from the output of the register 5 or from one of the outputs of the shift register 17, which performs the function of the adjustable delay link in the device. The more the code of the current line number, the shorter the time delay will be. Thus, the lines with a smaller number of the reproduced character will be shifted in time more strongly than the lines with a larger number. This achieves the tilt effect of the characters.

Claims (1)

Invention Formula A device for displaying information on a television indicator screen, comprising an interface unit, a pulse generator, first to sixth triggers, first and second re-. shift histories, AND element, AND-NOT element, OR-NOT element, character generator, one-shot, the output of which is connected to the lower-case synchronous input of the television indicator, whose video input is connected to the output of the OR-NOT element, the first input of which is connected to the output of the AND-NOT element, the first input of which is connected to the output of the second trigger; the address inputs of the character generator are connected to the outputs of the first and second groups and to the first output of the interface unit whose information input is the information input of the device; second, third, fourth , fifth, sixth and seventh gatecards of the interface block are connected to the information inputs of the first to fifth triggers and to the frame synchronous input of the television indicator, the brightness control input of which is connected to the output of the fourth trigger, the output of the third trigger is connected to the second input of the element OR NOT HE the output of the pulse generator is connected to the clock inputs of the first and second shift registers and the sixth flip-flop, the output of which is connected to the control input of the first shift register and to the clock inputs of the first to fifth flip-flops, the outputs of the character generator are connected to the information inputs of the first shift register group; n; the second output of the second shift register is connected to the synchronous input of the interface unit and the first input of the And element, the second input of which is connected to the second output of the second shift register, the third output of which is connected to the second input information - th shift register, the output element And connected to the information input the sixth trigger, characterized in that, in order to increase the information content of the device by displaying the distorted symbols by tilting, it contains an EXCLUSIVE-1TsEE OR element, a register, a third shift register, a block of OR-NOT elements, a multiplexer, the seventh trigger, the output of which is connected to the input of the block of elements OR NOT, the inputs of the group of which are connected to the outputs of the register, the information inputs of the group of which are connected to the outputs of the second group of the interface block, the eighth output of which connected to the information input of the seventh trigger; the control input of the register is connected to the output of the sixth trigger; the outputs of the block of elements OR are NOT connected to the address inputs of the multiplexer, the information inputs of the group are connected to the outputs of the third shift register, the touch input of which is connected to the output of the pulse generator, the output of the first shift register is connected to the information input of the third shift register and to the information input of the multiplexer, the output of which is connected to the first input of the Element ISCL (OR, the output of which is connected to the second input of the NAND element, the second input of the EXCLUSIVE element OR is connected to the output of the first trigger.