SU922717A1 - Indication device - Google Patents

Description

(54) DEVICE FOR INDICATION

I

The invention relates to automation and computing, and is intended primarily for displaying information in multi-bit indicator devices such as a display board.

A device for indicating is known, which contains a control unit, anode, and cathode drivers, a switch, and a decoder.

A disadvantage of the known device is the low accuracy of the information output.

The closest in technical essence to the invention is an indication device containing a control unit whose first output (connected to the inputs of the anode drivers and to the control input of the first switch, the Kotoporo information inputs connected to the outputs of the registers, and the output connected to the decoder input , the information inputs of the registers are connected to the second output

control unit, and the first output of the decoder is connected to the inputs of the respective cathode drivers, the outputs of the anode and cathode drivers are connected to the inputs of digital indicators f2,

However, with an increase in the number of digital indicators of the device for indication, there is a need for a visual to: edit control.

to individual characters or groups of characters display information. This requires a familiarity pointer (marker) whose presence simplifies the management of information output and increases its

ts credibility.

The purpose of the invention is to expand the field of application of the device due to the possibility of editing the displayed characters.

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The goal is achieved by the fact that the device contains a counter, the input of which is connected to the third output of the control unit, and the output to the control inputs of registers, a second switch, the information inputs of which are connected to the outputs of the counter, and the control input to the first output of the control unit , two elements AND, element OR, and element NOT, let us take the first inputs of elements AND are connected to the second output of the decoder and the output of the second switch, respectively, the second output of the first element I is connected to the fourth output of the control unit And the output of AND gate is connected to a first input of OR gate directly and to the second row WMOs second AND element via NOR output of the second AND element is connected to the second input of OR gate whose output is connected to inputs of a corresponding cathode formers. Fig. 1 is a diagram of the device for display; 2, timing diagrams for his work. The display device contains digital indicators 1, cathode drivers 2, decoder 3 first switch 1, registers 5 anode drivers 6, control unit 7, counter 8 second switch 9 first element 10, second element 11 11, element OR 12 and element 13 The device works as follows. The cathodes of the same name (or semen of the same type) of the digital indicators 1 are connected in parallel and connected to the outputs of the cathode drivers 2, the anode drivers 6 commute the anode (or grid) voltage of the digital indicators 1. At the first output of the control unit 7, a sequence of pulses is formed cyclically. which controls the operation of the first switch C and the anode driver 6, thereby providing a dynamic indication mode. Information from the control unit 7, where it enters,. for example, the keyboard is converted and fed to the input of registers 5. The control unit 7 also generates counting pulses arriving at the input of counter 8. The number of outputs of counter 8 is proportional to the number of displayed decades (registers 5) i.e. the number of bits (familiarity) of digital indicators 1. 9 74 For example, the 1st output of counter 8 is in the excited state, which uniquely identifies the recording of information in the t-th displayed decade (1st register 5) and also enables the output) The pulse sequence through the second switch 9 is the elements of AND 10 and 11, OR 12 and HE 13 to the input of the cathode driver 2, the corresponding driver of which connects the combined cathodes (segments) of the comma. In this case, the cathode of the 1-st digit of the digital indicators 1 is illuminated, and since the second input of the element 11 is connected to the SOURCE of the modulating frequency in the control unit, an intermittent glow of the cathode is observed. If at this moment the symbol code is received from the control unit 7 for the displayed decades, this code is written into the {-th displayed decade, and the corresponding symbol is output in the iM digit of the digital indicators 1, and the next control unit is added to the control unit 8. impulse, and the familiarity pointer (flashing start) automatically moves to the next 1 + 1 th digit of the digital indicators 1. Thus, the counter 8 can operate as in a closed loop during the sequential output of information, i.e. alternately permitting information to be recorded in all registers 5 while the familiar pointer moves sequentially across all the digits of the digital indicators 1, and in editing mode, when the counter 8 depends on the control signals from the control block 7, and accordingly the familiarity pointer is set to allowing the output of information to any of the bits of the digital indicators 1. In the initial state, the counter 8 permits the output of information to the 1st digit of the digital indicators 1. The sign of the comma shows the analogs to any other symbol, only the signal of the comma symbol from the decoder 3 to the corresponding input of the cathode formers 2 is received — through the elements AND 11 and OR 12. The display of the symbol used, unlike the familiarity pointer, occurs as a constant luminescence of the cathode (segment) comma .

In the case when -i bit of digital indicators 1 is selected, in the corresponding 1st indicated decade of which the code of the sign of the symbol of the cathode of the given bit is recorded, the familiarity pointer also lights up with intermittent light for the duration of the signal. A simplified time diagram of the operation of the device for indication is shown (Fig. 2) for the case when the familiarity indicator is in the 1st digit of the digital indicators 1, in the indicated decade of which the code of the comma is recorded. In the event that the sign code of the comma is in the (1-2) th bit, and the familiarity pointer is at the 1st bit of the digital indicators 1, the output of the element OR 12 contains separated in time signals of the comma mark (in FIG. 2 these signals are shown by dashes) and familiarity pointer signals. In the time diagram (Fig. 2), the numbers of the outputs correspond to the numbers of the elements of the device circuit for indication (Fig. 1).

The device for indications resolved the problem of reliably displaying information for estimating the introduction of new elements into the known device, which allow, without additional indicator lamps and circuits for their control, to organize a pointer to the familiar cathode (segment) of a comma, edit the displayed information without changing the entire text, selecting any familiarity and recording in the Negro information.,

Formula of invention

A display device comprising a control unit, the first output of which is connected to the anode inputs

drivers to the control input of the first switch, the information inputs of which are connected to the outputs of the registers, and the output is connected to the input of the decoder, the information inputs of the registers are connected to the second output of the control unit, and the first output of the decoder is connected to the inputs of the corresponding cathode drivers, the anode and cathode outputs drivers are connected to the inputs of digital indicators, characterized in that, in order to expand the field of application of the device due to the possibility of editing the displayed characters, stroystvo comprises a counter whose input is connected to the third output of the control unit, and an output - to the control

inputs of registers, the second switch, the information inputs of which are connected to the outputs of the counter, and the control input with the first output of the control unit, two AND elements, the element

OR and the element is NOT, the first inputs of the elements AND are connected to the second output of the decoder and the output of the second switch, respectively, the second output of the first element AND is connected to

the fourth output of the control unit, and the output of the first element AND is connected to the first input of the element OR directly, and to the second input of the second element AND through the element NOT, the output of the second element AND is connected to the second input of the element OR, the output of which is connected to the inputs of the corresponding cathode drivers.

Sources of information taken into account in the examination

1. USSR author's certificate No. 370603, cl. G 06 F 3/1, 1972.

2. USSR author's certificate I 390522, cl. G JD6 F S / T, 1973 (prototype)

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Claims (1)

Formula of the invention A display device comprising a control unit, the first output of which is connected to the inputs of the anode formers and to the control input of the first switch, the information inputs of which are connected to the outputs of the registers, and the output is connected 5 to the input of the decoder, the information inputs of the registers are connected to the second output of the control unit, and the first output of the decoder is connected to the inputs of the respective cathode shapers, the outputs of the anode and cathode shapers are connected to the inputs of digital indicators, characterized in that, with In order to expand the scope of the device due to the ability to edit the displayed characters, the device contains a counter, the input of which is connected to the third output of the control unit, and the output to the control About the inputs of the registers, the second switch, the information inputs of which are connected to the outputs of the counter, and the control input with the first output of the control unit, two AND elements, 5 OR element and NOT element, the first inputs of AND elements connected to the second output of the decoder and the output of the second switch, respectively, the second output q of the first AND element is connected to the fourth output of the control unit, and the output of the first AND element is connected directly to the first input of the OR element, and to the second input of the second AND element via the NOT element, the output of the second AND element is connected to the second input of the OR element, the output of which is connected to the inputs of the respective cathode shapers. Sources of information taken into account during the examination ⁰ 1. USSR copyright certificate