SU1386982A1 - Data input device - Google Patents

Abstract

The invention relates to computing and can be used to manually enter information into computer systems. The purpose of the invention is to increase the speed, simplify and reduce the power consumption of the device. The device contains block 1 of switching elements, block 2 of permanent memory, threshold element 3, register 4, element AND-OR 5. The outputs of the keyboard row and columns are connected to the address inputs of block 2 of permanent memory and the inputs of element AND-OR 5. When the keyboard key is pressed on the block 2 of the permanent memory, power is supplied through the AND-OR element 5 and the code corresponding to the key pressed is removed from the block 2 of the permanent memory and entered into the output register 4. 1 sludge.

Description

with

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: The invention relates to computational t (hnicke and can be used for manual Hi) to enter information into a computer system.

The purpose of the invention is to increase the speed, simplify and reduce the energy consumption of the device.

The drawing shows the functional diagram of the device.

The device contains a block of 1 switch m | TI (ROM), threshold element 3, register

four

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keys. In this case, the codes corresponding to the keys pressed are placed in the "correct addresses of the corresponding ROM cells, and in the remaining addresses the register bit associated with the output 7 will signal an error. In this case, the user must place in the ROM the relevant information.

ROM capacity for organizing the proposed device without the control function

ionic elements, block 2 constant pa-Q (by pressing two or more keys)

equal to Q N, where N is the number of keys.

ROM volume with control organization by pressing two or more keys or using a matrix of switching elements in group dialing mode

the element AND-OR 5, the outputs 6 and 7, the device operates as follows. In the initial position at the output of X and Y

block 1 of switching elements through - keys in order to expand the class of solutions; the corresponding resistor enters signaling tasks equal to

with | no potential. Q 2.

I When you press the corresponding key, Extending the class of tasks to be solved, e. when the first and second pairs are closed, not only in the use of switching contacts, a signal with a group dial squeeze is generated at the corresponding Q-block of switching elements in the rushing outputs X, Y, but also at a possible voltage level (impedance).

At the same time, the AND-OR 5 element also forms at its output a signal with a high and demand, which writes ROM 2, and K) formed by the corresponding signal-25 on the X and Y buses, form the address code of the ROM

,

where is the sign of the gluing operation.

; At this address, the contents of a read-30 ROM ROM cell corresponding to this code are input to the register where it is recorded with | drove from threshold element 3, performed) as it is for the intended purpose, i.e. which distinguishes the full level of the installed operating voltage of the logical C1 <RTI ID = 0.0> </ RTI>: oh unit, and playing the role of the delay element 4.

35

to assign the corresponding code to the corresponding key or group of keys pressed and flexibly change it by reprogramming the contents of the ROM. Thus, the proposed device allows operative entry of information in various modes and is characterized by simplicity and low power consumption.

Claims (1)

Invention Formula A device for inputting information containing a block of switching elements, the outputs of which are connected to the address inputs of a fixed memory block, characterized in that, in order to improve speed, simplify and reduce the power consumption of the device, a register, a threshold element and an AND-OR element are entered into it the output of which is connected to the power input A device for inputting information containing a block of switching elements, the outputs of which are connected to the address inputs of a fixed memory block, characterized in that, in order to improve speed, simplify and reduce the power consumption of the device, a register, a threshold element and an AND-OR element are entered into it the output of which is connected to the power input The delay value is determined by the capacitance in the input stage of the threshold element: 3 and must be at least 40 times in the permanent memory unit and the input of the threshold selection of information from ROM 2, taking into account the new element, the output of which is connected to the power on time. The code registered in this way on register 4 enters output 6, indicating the number of the key pressed. The user himself can assign and promptly change the code (coloring) of each. the control input of the register, the outputs of which are the outputs of the device, the inputs of the AND-OR element are combined with the corresponding address inputs of the block of permanent memory, the outputs of which are connected to the information inputs of the register. keys. In this case, the codes corresponding to the keys pressed are placed in the "correct addresses of the corresponding ROM cells, and in the remaining addresses the register bit associated with the output 7 will signal an error. In this case, the user must place in the ROM the relevant information. ROM capacity for organizing the proposed device without the control function (by pressing two or more keys) An extension of the class of tasks to be solved consists not only in the use of a block of switching elements in the group dialing mode, but also in the possibility 0 five to assign the corresponding code to the corresponding key or group of keys pressed and flexibly change it by reprogramming the contents of the ROM. Thus, the proposed device allows operative entry of information in various modes and is characterized by simplicity and low power consumption. Invention Formula A device for inputting information containing a block of switching elements, the outputs of which are connected to the address inputs of a fixed memory block, characterized in that, in order to improve speed, simplify and reduce the power consumption of the device, a register, a threshold element and an AND-OR element are entered into it the output of which is connected to the power input 0 of the block of permanent memory and the input of the threshold element, the output of which is connected to of the memory block and the input of the threshold element, the output of which is connected to the control input of the register, the outputs of which are the outputs of the device, the inputs of the AND-OR element are combined with the corresponding address inputs of the block of permanent memory, the outputs of which are connected to the information inputs of the register.