SU1515155A1 - Information input device - Google Patents

Abstract

The invention relates to automation and computing and can be used to enter information into a computer. The purpose of the invention is to increase the resolution of the device. The device contains two groups of radiation sources, two groups of radiation receivers, two groups of amplifiers, three decoders, six flip-flops, a register, a counter, two selector-multiplexers, a pulse generator, a one-shot and a bus driver. The invention makes it possible to double the resolution of the device by providing the possibility of special processing of information about the coordinate of the pointer. 2 Il.

Description

The invention relates to automation and computing and can be used to enter information into a computer.

The purpose of the invention is to increase the resolution of the device.

FIG. 1 shows a functional diagram of the device; in fig. 2 - diagram of the operation of the device.

The device contains the first 1 and second 2 groups of radiation sources, the first 3 and second 4 groups of radiation receivers, the first 5 and second 6 groups of amplifiers, the first 7 and second 8 decoders, the first 9 and second 10 selectors-multiplexers, 11 pulse generator, counter 12 , one-shot 13, register 14, first-fourth triggers 15-18, first 19 and second 20 elements AND-NOT, third decoder 21, fifth 22 and sixth 23 triggers, bus driver 24

The device works as follows.

The information inputs of the register 14 from an external control device (not shown) receive the address of the horizontal or vertical coordinate (Fig. 2.1). The address write signal from the external device (Fig. 2.2) records the address in the register 14, the trigger 15 is set to state 1 (Fig. 2.3), the one-shot 13 operates (Figure 2.4), the pulse from the output of the one-shot 13 sets the trigger 16 state 1 (Fig. 2.5) and through the IS-NE 19 element are fed to the reset input of the counter 12 (Fig. 2.5), continuing for the duration of the pulse of the one-shot 13 to keep the counter 1 12 in the initial state. From the direct output of trigger 15, level 1, the operation of the pulse generator 11 is resolved. From the output of the generator 11 sequence

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ate

SP

3151515

The pulses are fed to the counter input of the counter 12 (Fig. 2.7). From the outputs of the counter 12, the code is fed to the inputs of the diaptator 21 (Fig. 2.8 and 2.9). The signal from the first output of the decoder 21 (Fig. 2.10) triggers 22 and 23 are set to state 1 (Fig. 11.11). From the second output of the decoder 21, the pulse goes to the enable inputs of the decoder 7 and 8, to the enable inputs of the selectors 9 and 10 and the trigger inputs of the flip-flops 17 and 18 (Fig. 2-12). The resolution signal triggers one emitter from the first or second 15 groups of sources of radiation 1, 2. Amplifiers 5, 6 amplify the signal and feed it to the inputs of the corresponding multiplexer selectors 9 and 10. From the output of the corresponding selector-multiplexer O signal, the signal goes to the reset input of the corresponding trigger 22 and 23 (Fig. 2.13) and sets it to the state O (Fig. 2.11), which keeps the corresponding trigger 25 17 or 18 in the state 1 (Fig. 2.14). After receiving the information from the output of the higher bit yes counter 12 (fig. 2.15) triggers 1 5 and 16, according to the clock input, are set at 30 O (FIG. 2.3), with the O level

the output of the trigger 15 prohibits the operation of the pulse generator 11, and through the IS 19 element (Fig. 2.6) the counter 12 is set to the initial state 35 (Fig. 2c8, 2.9). Level 1 of the inverse output of the trigger 16 (Fig. 2.5) permits the passage of the signal Read through the element IS-NOT 20, the Signal Read (Fig. 2.16) passes through

element AND-NOT 20 (Fig. 2.17) and is fed to the input of the resolution of the bus driver 24. The signal from the outputs of the bus driver 24 is sig-,

45

Feeds are fed to the external device data bus (Fig. 2.18). This signal is information that indicates whether or not there is a pointer on a given coordinate. In the case of the intersection of the beam of a given coordinate by the indicator at the output of the corresponding. the selector multiplexer 9 or 10 pulse will be absent (Fig. 2.13), the corresponding trigger 17 or 18

55

will remain in the previous state 1 (Fig. 2.11), at the synchronization input the corresponding trigger 17 or 18 changes the level of the output signal,

and feeds it to the input of the bus driver 24 (Fig. 2.14).

During real work with this device for entering information, the pointer is most often the operator's finger, which may be wider than the device’s coordinate grid, as a result of which the device will fix only the first intersected grid point, besides, the sign on which the editing operation is performed may be not in the grid node, but between the rays and to be unreachable for the operator. The invention makes it possible to implement such algorithms of interaction with an external device, with. which is used to calculate the width of the pointer and the middle point is selected, and when overlapping a clear number of rays, the point between the rays is calculated, thus the resolution is doubled (for example, with a matrix, the resolution is obtained with accuracy).

Claims (1)

Invention Formula A device for entering information containing two groups of radiation sources, two groups of radiation receivers, two groups of amplifiers, two decoders, two selector-multiplexers, a pulse generator, a counter and a single vibrator, the outputs of the first and second decoders are connected to the inputs of radiation sources of the first and second groups, respectively , the radiation sources of the first and second groups are optically coupled to the radiation receivers of the first and second groups, respectively; the outputs of the radiation receivers of the first and second groups are connected to the inputs and amplifiers, respectively, of the first and second groups, the outputs of the amplifiers of the first and second groups are connected to the information inputs of the first and second multiplexer selectors, respectively, characterized in that, in order to increase the resolution, a register, six triggers, two AND-NOT, the third decoder and bus driver, the information inputs of the register are applied to the address inputs of the device, the synchronization input 15 register is connected to the installation input of the first trigger, the input of the single-vibrator and is the device's recording input, the register's outputs are connected to the inputs of the first and second decoders and the address inputs of the first and second multiplexer selectors, the information inputs of the first to fourth triggers are connected to the zero potential bus the device, the direct output of the first trigger is connected to the trigger input of the pulse generator and the first input of the first element AND –NOT of the one-shot is connected to the second input of the first element AND –NEY and the installation of the second trigger, the output of the pulse generator is connected to the clock input of the counter, the code of the first AND-NOT element to the reset input of the counter, the outputs of the low bits of the counter to the inputs of the third decoder, the output of the senior discharge of the counter to the synchronization inputs of the first and the second trigger, the inverse output of the second trigger is connected to the first input of the second NAND element, the second input of the second NAND element in 0 one 0 five five 556 The device reads the input, the output of the second element IS-NOT is connected to the enable input of the bus driver, the second output of the third decoder is connected to the enable inputs of the first and second decoders, the first and second multiplexer selectors, and: the synchronization inputs of the third and fourth triggers, the second output of the third the decoder is connected to the installation inputs of the fifth and sixth triggers, the output of the first selector-multiplexer is connected to the reset input of the fifth trigger, the direct output of the fifth trigger is connected to the installation input of the third trigger, direct output of the third trigger - with the first information input of the bus driver, output of the second selector-multiplexer - with the reset input of the sixth trigger, direct output of the sixth trigger - with the installation input of the fourth trigger, the direct output of which is connected to the second information input of the bus driver The outputs of which are the outputs of the device. Н7Н- | -.Т .one TTinJlJ-LRJirU-1PLLSHSHLLLLYAG / gpp ppp ppppp