SU1367035A1 - Device for displaying information on television set screen - Google Patents

Abstract

The invention relates to the field of computer technology, in particular, to devices for displaying information on television indicator screens. The purpose of the invention is to expand the field of application of the device by allocating the components of the displayed symbolic information by oscillating movement in the vertical direction, which is achieved by introducing a reversible counter 9, a trigger 11, a decoder 10, an element 1-ШИ 12, a second counter 14 lines, a multiplexer 16, a register 15 and corresponding functional connections. In the proposed device, the most informative fragment of lines of text or graphic figures synthesized from separate fragments of their components is selected by smooth oscillating vertical movement of the screen at a speed that does not interfere with the operator to easily perceive these fragments and simultaneously select them from everything array of displayed information, which significantly reduces operator fatigue and increases the information capacity of the screen. 1 il. with (L

Description

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The invention relates to computing, in particular, to devices for displaying information on television indicator screens.

The purpose of the invention is to expand the field of application of the device by selecting the components of the displayed symbolic information by oscillating movement in the vertical direction.

The drawing shows the functional diagram of the device.

The device contains a block of 1 RAM, character generator 2, shift register 3, generator 4 clock pulses, 5 point counter, horizontal scanner 6, frequency divider 7, switch 8., reversible counter 9, decoder 1-0, trigger 11, element PDI 12, the first 13 and second 14. row counters, register 15, multiplexer 16 and shaper 17 frame scan.

Positions 18, 19, 20, and 21 denote, respectively, the information input, the input of frame extinguishing pulses (IGI), the input of the horizontal subagre nating pulses (OIG) and the input of frame sync pulses (XI), and the position 22 denotes the output of the device.

The device works as follows.

From a computer (not shown), at input 18, character codes and signs of their release (by smooth oscillatory movement in the vertical direction) arrive at memory unit 1 and are read from field 1 at the field frequency and are received into character generator 2 (character codes) and register, respectively 15 (bits of signs of discharge).

The information is read and written to the RAM block 1 in accordance with the algorithm of the memory block storing a page of information frame displayed on a television (TV) receiver.

The block 1 is controlled by the pulse sequences formed by the shaper 17 and 6 of the frame and line scan.

In character generator 2, character codes are converted into parallel points of the pulses of vertical character sampling displayed on the TV screen, and then in shift register 3, they are converted into successive series, which are combined with a clock

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frequency coming from shaper 6.

The clock frequency at the counting input of the 5-point counter enters from the output of the 4-clock pulse generator and determines the sampling of the displayed information horizontally on the TV receiver screen.

Counter 5 is set to O with the arrival of each SGI at its reset input from input 20 of the device.

A multiplexer 16, controlled by address input by register 15, connects the output of the counter 13 lines to the input of the imaging device 17 when there is no latch code in register 15 or 14 lines when the register 15 stores the code for the selection flag.

Counter 14 differs from counter 13 in the presence of a setup input and an installation enable input.

The counting input of the counter 13 is received by the SGI, and in the zero state it is set at the reset input by pulses whose front coincides with the front of the OIG, and the duration is less than the duration of the OIG.

The counter 14 operates in a forced monotonically varying setting of the initial state in the time of the OIG (as opposed to a constant installation during the OIG in O of the counter 13).

The CID enters the counting input of the counter 14, and is set to the zero state by the front of the OIG, and then during the duration, the OIG is established by the installation input to the state determined by the state of the reversing counter 9, the outputs of which are connected to the installation inputs of the counter 14.

If the initial state of the counter 14 is changed to the side increased; then the selected characters are shifted with a discreteness of one TV-line upwards on the screen, and if it changes downwards, the selected characters are shifted down the screen with a speed determined by the rate of change of the initial installation determined by the frequency input to the counter 9 forming this setting.

The state of the counter changes in accordance with the arrival of each successive pulse to its counting input (either summing or subtracting)

from the output of the frequency divider 7, which lowers the minimum frequency (the frequency of the OIG) to the frequency at which the speed of oscillatory movement of the selected characters best meets the ergonomic requirements (the minimum division factor is four).

The oscillatory movement of the selected symbols is due to the fact that the state of the counter 9, which determines the setpoint, changes upwards or downwards in accordance with the connection of the clock frequency by the switch 8 to the summing or subtracting inputs of the counter 9.

The switch 8 is controlled by a pulse from the output of the trigger 11, the state of which changes with the arrival of a pulse from the output of the element OR 12 to the counting input and connects the output of the frequency divider 7 depending on the state of the trigger 11 to the summing or subtracting inputs of the counter 9.

If at the initial time the counter 9 works on summation, then at the moment of the occurrence of the higher bit connected to the second input of the OR 12 element, the trigger 11 changes its state and connects the output of the divider 7 to the subtracted input of the counter 9, which now works

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At the time of the occurrence of the zero state of the counter 9, allocated by the decoder 10, the output of which is connected to the first input of the element OR 12, the thread

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A memory unit containing a memory block, whose information input is the information input of the device, the outputs of which, besides the output of the discharge of the feature code (you, p, Information Trends), are connected to the address input of the character generator, the output of which is connected to the information input of the shift register, the output of which is the output of the device, the clock pulse generator, the output of which is connected to the counting input of the point counter, the reset input of which is the input of the lower case damping pulses of the device, the output of the point counter There is a dinen with the line scanner input, the first output of which is connected to the address input of the RAM, the control input of which is connected to the first output of the frame scanner, the second input of which is connected to the control input of the character generator, the first row counter, the reset input of which is an input of coding damping pulses connected to the input of a frequency divider and a switch, characterized in that, in order to expand the field of application of the device by separating the components of the displayed imvolnoy information vibrational displacement in the vertical direction, it comprises a reversible counter, the summing and the subtracting inputs of which are connected soot- I respectively to first and second outputs

switch, the information input of which is connected to the output of the splitter

The ger 11 changes its state and again; Q; the trigger, the output of which connects the output of the divider 7 to the summing input of the counter 9.

In this way, a smooth oscillatory movement in the vertical direction of characters having a selection feature is performed.

The used method of selecting the informative part of the displayed information is consistent with the psycho-physiological features of the human eye, ensures that the operator quickly finds the information being extracted while maintaining the clarity of its display and doubles

not with the control input of the switch, the OR element whose output is connected to the counting trigger input, the decoder whose output is connected to the first input element of the OR element, the second row counter, the multiplexer, and the register whose input is connected to the output of the code code discharge memory unit, and the output - with the address input

gg multiplexer, information inputs. which are connected to the outputs of the first and second row counters, the output of the multiplexer is connected to the input of the frame scanner, the input

informative capacity of the TV screen when. reset the second line counter of the connection.

Claims (1)

Claims. A device for displaying information on a television screen is injected with an input of personnel extinguishing pulses of devices, and its installation resolution input is an input of frame sync pulses, counting inputs not with the control input of the switch, the OR element whose output is connected to the counting trigger input, the decoder whose output is connected to the first input element of the OR element, the second row counter, the multiplexer, and the register whose input is connected to the output of the code code discharge memory unit, and the output - with the address input gg multiplexer, information inputs. which are connected to the outputs of the first and second row counters, the output of the multiplexer is connected to the input of the frame scanner, the input is not connected with the input of frame damping pulses of the device, and whose installation resolution input is the input of frame sync pulses, the counting inputs .5136703j6 the first and second row counters of the decoder and the setup inputs are connected to the lower row input of the second row counter, the output of over-device pulses, the outputs of the reverse discharge of the reversible counter of the subscriber counter are connected to the inputs of the key to the second input of the OR element.