SU824291A1 - Indication device - Google Patents

Description

(54) DEVICE FOR INDICATION

The invention relates to automation and computing and can be used to visually present information. Devices for digital indications, operating on the principle of dynamic indications, containing information sources, digital indicator lamps, anode drivers, a switch, a control unit, a counting decade and a decoder are known. The disadvantage of these devices is the dependence of the pulse duty cycle of the illumination and indicators on the state of the information sources. The closest to the proposed technical entity is a device for digital indication, containing digital indicator lamps, the anodes of which are connected to the outputs of the anode formers, the same cathodes are combined and connected to the outputs of the decoder, the information inputs of which are connected to the corresponding outputs of the buffer memory. blockade recalculated trigger decade, the outputs of which are connected to the corresponding inputs of the buffer storage unit, the counting input - to the controlled output of the control unit, which the second output of clock pulses is connected to the inputs of information sources; bit switches, the inputs of which are connected to the outputs of the corresponding information sources, and the outputs are combined and connected to the input of the recalculation stop of the control unit; the switch, whose input is combined with the information recording input of the buffer recording device, each output is connected to the inputs of the corresponding anode drivers and the control inputs of the subsequent bit switches, and the last switch output with the control input of the first bit switch. In this device, the first push-pull pulse shaper converts one pulse of the reference sequence into a pulse controlled by the buffer storage unit and a switch (changing information and address), the next pulse — into a reset trigger pulse of the decade and recalculation of information for illumination of the next indicator lamp). One cycle of illumination occurs within two cycles of the pulses of the reference sequence, i.e., over 20 pulses of the generator in the control unit G22. The aim of the invention is to improve the image quality by increasing the brightness of the indicator lamps. The goal is achieved by eliminating the push-pull driver in the device and introducing a delay element, the input of which is connected to the output of the frequency divider, and the output to the reset input of the recalculating trigger decade. The element And is connected not direct, but inverse generator output. The circuit of the inputs of the switch and the recording of information of the buffer memory unit is connected to the output of the frequency divider. At the same time, the information in the buffer memory block and the address in the switch, as well as the reset of the three-decade counts, is reset during the reference sequence pulse, from the frequency divider, and the information for the next indicator to be highlighted during the pause between specified impulses with amy. FIG. 1 shows a block diagram of the device; in fig. 2 - time diagrams of his work. The proposed device contains displayed sources of 1 - 1 rj information, made on phase-pulse multi-stable elements, k you. the KoToptJx run, 2–2 bit switches connected by switch 3 are connected. Each output of switch 3 is connected to the control input of the subsequent bit switch, and the last output is connected to the control input of the first key 2, the outputs of the discharge keys are combined and connected to D914 trigger input 4 to stop recalculation. The delay element 5 is connected to the reset input of the counting decade 6, the outputs of which are connected to the information inputs of the buffer memory block 7. The outputs of the latter through the decoder 8 are connected to the combined digital cathodes of the indicator lamps 9 to 9, the anodes of which are connected to the corresponding outputs of the switch 3 via the anode keys U - lOj to the input of the clock sources of the 1 c - to the input of the divider I2 frequencies, and the inverse output to the first input of element 13 I, the second input of which is connected to the output, trigger 4, and the output to the counting input of the counting decade 6. The frequency divider 12 generates a control reference pulse train od schihs in phase with the pulse numbers from about C sources - Ifj information. The output of the frequency divider 12 is connected to the counting input of the switch 3j to the 5th input, trigger 4 for enabling the recalculation to the input of the delay element 5 to reset the counting decade 6, to the recording input of the buffer storage unit 7 for changing information in it by the displacement method. Plots a - e (Fig. 2) show time diagrams at the most characteristic points. The plot a shows the direct output generator pulses 11, the plot b shows the reference sequence pulses formed by the frequency divider 12, and the plot & - pulses at the output of the element 5 delay. The diagram g shows the pulses at K, the input of the trigger 4, the diagram e shows the pulses at the output of the trigger 4, and the diagram e shows the series of pulses at the input of the recalculated decade 6. The device works as follows. At the moment t, a pulse of the reference sequence appears at the output of the divider 12, on the leading edge of which the switch 3 switches to the third (last) position, the buffer memory block 7 receives information from the counting decade 6, and to the dynamic S - trigger input 4 the reference pulse acts positively. At time t, determined by the delay on element 5, the counting decade 6 is reset to zero. This opens the first bit key and the potential I input of the trigger 4 begins waiting for a pulse with the phase of the digit 7 recorded in the source of information. Element 13 I is open during the time t - t, during which seven counts generated at the clock input of the counting decade 6 will pass through seven pulses generated in the clock of the generator 11. Next to the arrival time of the next reference pulse, the device does not change its state: on the third indicator lamp 9- for the time t. information is illuminated, recorded on the leading edge of the reference pulse, and the information intended to illuminate the first indicator lamp 9 is prepared in terms of decade 6. At time t, switch 3 switches to the first position, thereby initiating the first anode key 10 (simultaneously the inputs of block 7 and the impact on the 5-input of the trigger 4 of the last scientific research institute switches to the unit state.In addition, the bit 2o opens, which sends a pulse with the phase of the digit O recorded in the source 12 and the trigger 4 to the trigger 4 Information The impact of this pulse on trigger 4 occurs throughout its duration, so the trigger returns to zero again, due to which decade 6 remains in the reset state. At the third reference pulse on the indicator lamp 92, the figure O is highlighted, and in the counting decade 6 from source l is rewritten digit 1, and so on. Thus, one stroke of illumination of the indicator lamp occurs in. one clock cycle of reference pulses, i.e., for 10 generator clock pulses. Consequently, the frequency of illumination of indicator lamps is doubled at 2, maintaining the duty ratio of the illumination pulses. As a result, the brightness of the luminescence increases, i.e., the image quality is higher. Claims of the invention A display device comprising digital indicator lamps, the anodes of which are connected to the outputs of the anode switches, the inputs of which are connected to the outputs of the switch, the outputs of which are connected to the same inputs -. bit switches whose other inputs are connected to information sources whose inputs are connected to the direct output of a clock generator connected to a frequency divider, the outputs of the bit switches of connection i to the 8 input of an RS flip-flop, the output of which is connected to the first input of the AND element, the output of which is connected to the counting input of the counting decade, the outputs of which are connected to the information inputs of the buffer memory block, the outputs of which are connected to the inputs of the decoder, the outputs of which are connected to the digital cathodes of the same name indicator lamps, characterized in that, in order to improve image quality by increasing the luminance of digital indicator lamps, a delay element is inserted in the device, the input of which is connected to the output of the frequency divider, and the output is connected to the reset input of the decade counting, the inverse output of the clock generator is connected with the second input of the AND element, and the output of the frequency divider is connected to the recording input of the buffer memory block and the input of the switch. Sources of information taken into account during the examination 1. USSR author's certificate No. 399858, cl. G 06 F 3/14, 1971. 2. USSR author's certificate No. 549820, cl. G 06 K 15/18, 1975 (prototype).

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Claims (1)

Claim Indication device containing digital indicator lamps _{f the} anodes of which are connected to the outputs of the anode keys, the inputs of which are connected to the outputs of the switch, the outputs of which are connected to the same inputs! ·. 15 bit keys, the other inputs of which are connected to information sources, the inputs of which are connected to the direct output of the clock generator connected to the frequency divider, the outputs of the bit keys are connected to the R-input of the RS-trigger, the output of which is connected to the first input of the And element, the output of which connected to the counting input of the recalculation decade, the outputs of which are connected to the information inputs of the buffer memory unit, the outputs of which are connected to the inputs of the decoder, output: which is connected to the cathodes of the same digital speaker lamps, characterized in that, in order to increase the image quality by increasing the brightness of the digital indicator lamps, a delay element is inserted into the device, the input of which is connected to the output of the frequency divider, and the output to the reset input of the conversion decade, the inverse output of the clock generator is connected with the second input of the element And, and the output of the frequency divider is connected to the recording input of the buffer memory unit and the input of the switch.