SU999033A1 - Data input device - Google Patents

Description

(54) DEVICE FOR INPUT OF INFORMATION

The device relates to automation and computing and can be used in input devices in the computer, as well as in. other electronic devices that have a keyboard for manual typing and data entry.

A device for inputting information, which is a time setting circuit in an electronic clock, is known. The circuit contains a Schmitt trigger, which functions as a master pulse generator connected to a pulse counter, the outputs of which are connected via an decoder to an indicator, a dialing button (key) associated with an AND element connected to the input of a pulse counter. Information input, for example, the set of the specified hours, is made as follows. When the dial button is pressed, the pulse counter at a fixed frequency of 5/3 Hz is applied to the pulse counter input. On the unit of the clock, the symbols from O to 9 are successively alternated. When one cycle is calculated, the symbol 1 appears on the clock display. The button is pressed until the specified combination (information message) is deformed. . .

The disadvantage of this device is the low input speed, which is associated with the expenditure of time for recalculation into the higher bits of the information message.

The closest technical solution to the device is an information input device containing a master pulse generator connected to a pulse counter via an AND element, the second input of which is connected to the dial key and the output

The 15 pulse counter is connected to the indicator via descramblers, and the rabble key: associated with the setup input of the pulse counter 2j.

The disadvantage of this device

20 links low input speed.

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

To achieve this goal, the device for inputting information contains the first pulse generator, the output of which is connected to the first input of the element I, the output of the Tojxjro is connected to the first input of the counter, the outputs of which are connected through the first decoder to one of the indicator inputs, the second input of the element And connected to the first output of the keyboard, the first input is connected to the output of the second pulse generator and to the second input of the keyboard, the second output of which is connected to the second input of the counter, a shift register is entered, the second d the encoder, the first pulse shaper and the second pulse shaper, the first input of which is connected to the second keyboard output, the first output of which is connected to the second input of the second pulse shaper, the output of which is connected to the input of the shift register and the input of the first pulse shaper, the output of which is connected to the second the input of the counter, the outputs of which are connected to the inputs of the group of the shift register, the first and second outputs of which are connected through the second decoder to other inputs of the indicators.

The drawing shows a diagram of the device.

The device contains the first generator 1 of pulses, the control element 2, the element I 3, the counter 4, the first 5 and second 6 decoders, the first 7 and second 8 indicators, the shift register 9, the touch keys of dialing 10 and reset 11 with pads 12 and 13 (keypad), a driver of 14 pulse shears, including a trigger 15 and an additional element AND 16, a driver of 17 pulses of the installation 17 and a second generator 18 of pulses.

Device works as follows.

The first pulse generator 1 generates rectangular pulses that arrive at the first input of element 3. At the touch pad 12 of the touch key 10 of the dial, a logic 1 signal appears at its output. Simultaneously, with the touch of pad 12, the mechanically coupled with the platform 12, the control element 2. In this case, the contact platform 12. is performed on that part of the control element 2 to which the operator’s pressing force is directly applied.

The magnitude of the effect on the control element 2 determines the pulse frequency of the first pulse generator 1. The signal of logical 1 from the output of the touch key 10 of the set is fed to the second input of the element 3. At the same time, the output of the element is AND 3 pass. The pulses from the first generator 1 of pulses, which are fed further to the input of counter 4, Counter 4 forms the output signal corresponding to the number of arrivals at its input pulses. The coding signal from the output of counter 4 is fed to the inputs of the shift register 9 and the first decoder 5. The first decoder 5 converts the counter code 4 and the code of the first indicator 7. The first indicator 7 forms the symbol corresponding to the code. Thus, when contacting pad 12 on the first indicator 7 occurs, a sequence of characters of a given alphabet, for example, a sequence of digits, the frequency of which changes depends on the time of exposure of control element 2. Discontinuing contact of pad 12 leads to the disappearance of the signal of Law sensory output tagic

Vichy 10 and, respectively, at the second input of element 3. At the same time, the pulses from the first generator 1 cease to pass to the output of element 3. Thus, fixation is made in the counter 4 and on the first indicator 7 of the desired symbol, for example, a digit.

When the information message is entered first, the character corresponding to the most significant bit of the message is formed. After the character of the most significant character is typed, the remaining characters are sequentially typed in descending order of the bits. The character of the least significant bits is set similarly. In this case, the signal that is formed 1st at the output of the touch-sensitive dialing key 10 when the contact pad 12 is touched also enters the first input of the imaging unit 14 of the shift pulses. In the initial position of the trigger 15c of its output to the first input of an additional element AND 16, a logical signal 1 is received. The signal from the output of the touch keyboard. And 10 is fed to the second input of an additional element AND 16, with this signal a logical signal appears at its output O. Simultaneously, the signal; From the key 10, it enters the setup input of the trigger 15, thus forming, at the output of the trigger, the signal Lo: Gicheskogo O. This delay signal, determined by the capacity of the capacitor 15 installed at the output of the trigger, locks the additional element Both 16 and at its output a logical 1 signal is generated. Thus, a negative polarity shift pulse is generated. The trigger 15 is reset to its initial position by the reverse edge of the signal of the key 10 by stopping the contact pad 12. The shift pulse arrives at the control input of the shift register 9, the character code generated by the previous set of the counter 4 is written into the shift G register 9 On subsequent sets, this code advances along the shear

register 9. Codes recorded in the shift register 9 through the second decoder 6 are fed to the second indicators 8 to control the contents of the shift register 9. In addition, the shift pulse also goes to the input of the driver 17 of the setting t which provides the necessary shift in time between writing the code in the shift register -9 and setting the counter 4 to the zero position. Simultaneously, the signal from the output of the touch key. 10 enters element 3, which allows the shlpuls of the first generator -1 to pass to the input of counter 4. Thus, the set of the next character begins. Further, the operation of the device is similar to the first character set. If an erroneous symbol is formed in counter 4, it can be removed by touching the pad 13 of the reset touch key 11, the output of which is connected to the installation input of counter 4. At this, counter 4 is set to the zero position.

To prevent this from writing to zero in the shift. The resistor 9, when the pad 12 is subsequently touched to the key 10 of the set. The OUTPUT signal of the touch button 11 of the reset switch, is also fed to the second input of the shifter 14, i.e. to the second setup input of the trigger 15. In this case, the trigger from the initial position is set to the zero state and the arrival of the next pulse caused by the operation of the dial key 10 does not cause the appearance of a new shift pulse. The second generator 1 is designed to operate the touch keys 10 and 11.

The device, in comparison with the known, allows to significantly increase the speed of information input by changing the nature of the input. Random input messages, i.e. the formation of symbols of each bit with the maximum rate of change of symbols, determined by the capabilities of a human operator, saves time. Adjusting the frequency of the master oscillator allows you to speed up a set of characters far from the beginning of the alphabet, by skipping previous symbols at a speed at which the operator cannot

confidently identify them. At the same time, the orientation about the approach to the area of the sought symbol is carried out by the operator according to the combination of the magnitude and duration of the effect on the regulating element of the master oscillator. Such an increase in the input speed will allow reaching and exceeding the speed of a single-button device with a single dial key.

The device can be used, for example, in subminiature computers.

Claims (2)

1. Journal of Radio, 1978, 10, p. 44-45. 2. USSR author's certificate number 357558, cl. C 06 F 3/02, .1969 (prototype). 5 7 . b 8 6 8 I e 4 y