SU423117A1 - DEVICE FOR MANUAL INPUT OF INFORMATION WITH PUNCH CARD1 T 5IPTOi - Google Patents

Description

one

The proposed device relates to the field of computing and can be used to manually enter information into digital computers for various purposes.

The known devices for manual entry of information from punched cards usually carry out data acquisition from a fixed card, fixed manually by the operator in the readout unit, or readout information "in the aisle, i.e. when the card moves under the readout unit. In this case, the card under the readout unit is usually advanced mechanically.

The known devices comprise a photo-reading unit, a reading amplifier, and a series of logic circuits for sequential transmission of information printed on a punched card to a digital computer.

However, such devices contain a complex synchronization scheme and a large amount of mechanical equipment. In addition, they lack control of the operating device prior to entering information.

The purpose of the invention is to create a device for manual entry of information from punched cards, which, with the simplicity of synchronization schemes and performance monitoring and high reliability, would not have mechanical components and elements. This goal is achieved

By the fact that in the proposed device one of the trigger start enable inputs is connected to one of the resolution trigger inputs and to the output of the second match circuit, whose inputs are connected to the outputs of the photoreading unit, the inputs of the third match circuit are connected to the outputs of the inversion circuit, and its output is connected to one from the inputs of the fourth coincidence circuit, the other input of which is connected to the light-emitting element and to the output of the trigger start enable, and the output to the other input of the enable trigger, the output of which is connected to one of inputs of the first matching circuit.

Pa figs. 1 shows a punch card; in fig. 2 is a diagram of the proposed device.

Pa of positions 1 and 2 of punched cards are synchronized punching, pa of positions 3-12 are informative punching, which

placed through one column.

The proposed device consists of a photodiode readout unit 13 of the inverting circuit 14, a register 15, a trigger of the clock pulses 16, a matching circuit of 17-20, a resolution trigger 21, a trigger for switching on the perfumer 22, a light emitting element 23 and a switching tumbler 24.

The device works as follows. At the initial moment, when the toggle switch 24 goes off, the signal

through its contacts, trigger 22 is set to prevent the light-emitting element 23 from entering. When inserting punch cards, turn on the toggle switch 24, through which contacts the power supply voltage is supplied to the photodiode backlight unit in the readout unit 13. In case of proper operation of the photodiode backlight lamps and reading amplifiers A matching circuit 17 shows the signal "Illumination, which sets the trigger 22 to a single position, which leads to the inclusion of the light emitting element of its element 23, i.e. confirmation of the correct slave otsy read block, after which the operator enters the card. Such a control ensures high reliability of the device operation and makes it possible to avoid non-correct information input operations. The Backlight signal sets trigger 2 to prohibit the passage of sync pulses through the coincidence circuit 20.

When a punched card is inserted into the readout unit, a moment comes when all photodiodes are in a darkened state. Then, at the outputs of the inverting circuit 14, single signals appear {that are collected on the coincidence circuit 18. The signal "Swing the card from the output of this circuit passes through the coincidence circuit 19, opened by the signal from the output of trigger 22, and switches trigger 21 to another position, preparing thereby a coincidence circuit 20.

Upon further movement of the card, under the block of reading, the first column of the punch card appears. The signal from position 11 of the punched card confirms the position of the trigger 16, corresponding to the absence of a clock pulse. The signals of the position of the 8-12 punch card during the movement of the first column under the read block are recorded in register 15, where information is stored. Further, under the reading unit, the second column, at position 10 of which there is a piercing, is positioned. The signal from the output of the inversion circuit of this position moves the trigger 16 to another position. The signal from the output of this trigger through the coincident 20 nostunet circuit to the device is like a clock pulse. According to it, the information from the register 15 is not rendered into the device. After the recording of the information IIIII from the register 15, a signal arrives in the device, resetting the register 15 to "zero."

Upon admission under the reading unit

the third column, trigger 16 is again tilted, and information is entered into register 15,

posted on this column, etc.

Subject invention

A device for manual input of information from punch cards, containing its photo-reading unit, the outputs of which are connected to an inversion circuit, connected to the register and trigger of the sync pulses, the output of which is connected to one of the inputs of the first scheme, controlled by a light-emitting element, triggers

Permission to enable and enable perforator, which is different from the fact that, in order to increase reliability, one of the inputs of the perforator enable trigger is connected to one of the enable trigger inputs and to the output of the second coincidence circuit whose inputs are connected to the outputs The photo-reading unit, the inputs of the third matching circuit are connected to the outputs of the inversion circuit, and the output to one of the inputs of the fourth assembly scheme, the other input of which is connected to the light-emitting element and the trigger output, including the other input terminal. the input of the trigger trigger, the output of which is connected to one of the inputs of the first circuit

match.