SU1300514A1 - Device for reading information from punched tape - Google Patents

Abstract

The invention relates to automation and computing technology and can be used in computer input devices with punched tapes. The aim of the invention is to increase the accuracy of the device. The device contains a photoelectric converter 1, a block 2 of information signal amplifiers, a sync signal amplifier 3, registers 4.7, a generator of 5 clock pulses, a block 6 of static information processing including a decoder, a trigger and an element. I. The introduction of register 7 and block 6 of static processing has improved the accuracy of the readings. 1 hp f-ly, 2 ill. IA :) o: l 4

Description

 one

The invention relates to automation and computer technology and can be used in computer input devices with punched tapes.

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

FIG. 1 shows a block diagram of a device for reading information from a punched tape; in fig. 2 - block diagram of the block of statistical processing of information.

The device contains a photoelectric converter 1, a block of 2 amplifiers of information signals, an amplifier 3 of a clock signal, a register 4, a generator of 5 clock pulses. fxiioK 6 statistical processing of information, register 7, decoder 8, trigger 9, element 10, information output 11 of the device, output 12 of the alarm signal when reading the information.

The device works as follows.

Photoelectric converter 1 reads information from punched tape. Information signals amplified by block 2 of information signal amplifiers are fed to register 4 input. The sync track signal is fed through amplifying 3 sync signal to input of statistical processing unit 6, which is register input 7. Signals from the generator output 5 clock pulses record and shift the information received into register 7. Information from the output of register 7 is fed to the input of the decoder 8. When register 7 is filled with logical 1 at the lower-order bits that are used, decoder 8 sets trigger 9 to logical state 1. If during the process of filling NIN register 7 logical 1, . If logical 7 signals have been received by register register 7, then trigger 9 will remain in logical state and at the moment of filling the most significant bits of m available in register 7 with logical 1 () decoder 8 will set output element 10 to output device 12 signal logical 1.

When the flip-flop 9 is set to one, the signal from its output writes 4 information signals to the register.

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at its input from the output of block 2 information signal amplifiers. In this way, information is read out from the punched tape at the output 11.

The operation of the decoder 8 is equivalent to the operation of the K155IDZ microcircuit.

The introduction of the register and the statistical processing unit increases the accuracy of the device.

Claims (2)

1. A device for reading information from a punched tape, comprising a clock pulse generator, a photoelectric converter, an information signal amplifier unit, a clock signal amplifier, the input of which is connected to a first output of a photoelectric converter, the second output of which is connected to an input of an information signal amplifier unit, characterized in that in order to increase the accuracy of the device, a register and a block of statistical processing of information are entered in it, the input of which is connected to the output of the generator and clock pulses, the information input is connected to the clock amplifier amplifier, the first output is the first output of the device, and the second output is connected to the register recording input of a fault that occurred when reading information from punched tape, the information input of which is connected to the output of the information signal amplifier block, and the output is the second device code. 2. The device according to claim 1, which is different in that the statistical information processing block contains the element AND, the trigger, the decoder and the register, the information input and the entry entry of which is respectively the information input and entry entry of the block, and the register output is connected to the input of the decoder, the first and second outputs of which are connected respectively to the R and S inputs of the trigger, and the third output is connected to the first input of the AND element, the output of which is the first output of the block, and the second input is connected to the inverse trigger output, the direct output of which is the second output of the statistical processing block. Editor M. Kelemesh Compiled by N. Davydov Tehred I.Popovich Proofreader A. Obruchar Order 1152/50 Circulation 673 Subscription VNIIGSh of the USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 f (; 8.2