SU955187A2 - Marker forming device - Google Patents

Description

(54) DEVICE FOR THE FORMATION OF MARKER

The invention relates to computing and can be used in devices for generating a marker.

According to the main auth. 714441, a device for forming a marker is known, comprising a plate with a matrix of mutually isolated conductive sections connected to an input unit, the inputs of which are connected to the first outputs of the decoder, the output to the inputs of the first register and the comparison unit, the first inputs of which are connected to the outputs of the first register, output - with the second register, the counter, the input of which is connected to the pulse generator, the outputs are connected to the descrambler, the second input of the comparison unit and the input of the first register i.

The device has a low speed, because the marker on the indicator screen from an arbitrary position to a predetermined position is moved only by increments of the code from the output of the second register,

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

 The goal is achieved by the fact that a second tablet and a second

an input unit, the second inputs of which are connected to the second outputs of the decoder, and the output is connected to the control input of the second register, the information inputs of which are connected to the outputs of the counter.

The drawing shows a block diagram of a device for forming a marc.

The device contains a tablet 1,: an input block 2, a decoder 3, a register 4, a comparison block 5, a register 6, a counter 7, a pulse generator 8, a plan 15, a loop 9, an input block 10.

Tablet 1 is intended to introduce the movement of the marker and can be made into. in the form of matrices with mutually isolated conductive parts.

The first input unit 2 is designed to determine the contact of the operator of any conductive area on the tablet 1. It can be performed using the schemes for generating information signals of the operator’s touch (for example, using oscillatory circuits of autogenerator type or shock excitation) and

30 polls.

The decoder 3 is designed to convert the binary code of the conductive portion of plates 1 and 9 into decimal codes. The first register 4 is for storing the binary code of the conductive portion of the tablet 1, which the operator has touched. Comparison unit 5 is designed to compare the codes of the previous and subsequent conductive parts of Tablet 1 that the operator has touched.

The second register 6 is designed to store the marker position code, made in the form of a reverse register.

Counter 7 is used to generate the binary codes of the conductive areas of plates 1 and 9,

The generator 8 pulses is designed to generate pulses applied to the input of the counter 7 and synchronizing the operation of the entire device.

Tablet 9 of setting the marker position setting is intended for preliminary (inaccurate) marker installation. On the indicator screen by operator touch and can be made in the form of a matrix with mutually isolated current carrying areas, transparent and aligned with the screen indicator (for example, the matrix can be directly printed on the indicator screen) . The latter is provided by spraying a thin metallized coating on the glass in the form of a matrix with taps to remove the operator's touch signal. Transparency is provided by the thickness of the coating. The high-temperature sputtering regime will increase the service life of the coating (for example, and the operator's intensive work).

The second input unit 10 is designed to determine the contact of the operator of any conductive area on the plate 9 and can be performed similarly to the first input unit 2.

The device for forming the marker operates as follows.

The operator, by touching jK to the required area of the tablet, performs coarse targeting of the 1 position marker on the indicator screen. During tangent i, the second input unit 10 records in the reverse register b a code reflecting the coarse position of the marker on the screen. The code of the conductor of the next section of the tablet 9 generates from the output of the counter 7, which counts the pulses from the output of the generator 8 (producing a sequence of pulses). At the same time, this two-dimensional code enters decoder 3, which converts it into decimal, and selects conductive areas according to counter code 7. Each passing generator pulse 8 changes counter code 7 by one. The decoder sequentially selects the conductive areas of both tablet 9 and tablet 1. Touching any conductive section of tablet 1 by the operator allows the marker to move on the screen with respect to coarse targeting. In this case, the selection of the corresponding conductive portion of the tablet 1 is provided by the decoder 3 and the first input unit 2. As soon as the input unit 2 selects the conductive part of the plate 1, which the operator touched, at its output, a signal is received that goes to the control inputs of the first register 4 and the comparison unit 5, which is allowed to compare the code of the counter 7 with the code of the first register 4. In this moment in time in counter 7 is stored the binary code of the conductive portion of plate 1, which the operator is currently concerned with. The first register 4 stores the binary code of the conductive portion of the tablet 1, which the operator previously concerned. If there was no contact, then in the first register 4 a randomly recorded code is stored, for example, as a result of turning on the power of the device. Bit comparison unit 5 compares the codes of counter 7 and first register 4. If the difference between these codes is greater than or less than the low-order unit, or is equal to zero, then comparison unit 5 does not produce a signal at the output. If the difference of these codes is 1, then the comparison unit 5 generates a pulse, which goes to the second register 6 (reversible). As a result, the code of the second register b is changed by ± 1. This causes the marker on the screen to move relative to the coarse position. At the end of the code comparison, the signal of the first input unit 2 of the code of the counter 7 is recorded in the first register 4. Thus, the first register 4 stores the code of the conductive part of the tablet 1 that the operator touched. Next, the decoder 3 polls the next conductive section of the tablet 1 and the cycle described above repeats. When the operator's finger moves across the tablet 1, it sequentially touches each conductive part 2 whose codes differ by no more than i 1, which causes the marker to move the screen. In this case, the direction of the marker movement on the screen fully corresponds to the direction of movement of the operator's finger on the tablet 1. Tablet 1 dimensions and the number of conductive areas can be the most. and vary depending on the specific requirements. In particular, tablet 1

Claims (1)

Claim A device for forming a marker on autosw. 714441, characterized in that, in order to improve the performance of the device, it contains a second tablet and a second input unit connected in series, the other inputs of which are connected to other outputs of the decoder, and the output is connected to the control input of the second register, the information inputs of which are connected to the outputs of the counter.