SU824187A1

SU824187A1 - Information input device

Info

Publication number: SU824187A1
Application number: SU792797243A
Authority: SU
Inventors: Юрий Николаевич Федоров; Владимир Ильич Фомин; Геннадий Николаевич Хватов; Марианна Янкельевна Скузо
Priority date: 1979-06-25
Filing date: 1979-06-25
Publication date: 1981-04-23

Description

(54) УСТРОЙСТВО ДЛЯ ВВОДА ИНФОРМАЦИИ(54) DEVICE FOR INPUT OF INFORMATION

1one

Изобретение относитс к вычислительной технике и предназначено дл ввода информации с перфокарт и перфожетонов.The invention relates to computing and is intended to enter information from punched cards and perfozeton.

Известно устройство дл считывани информации с перфоносител , содержащее привод с барабаном и осветител ми, считывающие головки, дополнительный привод и кодовую маску 1.A device for reading information from a perfume carrier is known, which contains a drive with a drum and illuminators, read heads, an additional drive, and a code mask 1.

Недостатком известного устройства вл етс низка надежность.A disadvantage of the known device is low reliability.

Наиболее близким к предлагаемому вл етс устройство дл ввода информации, содержащее последовательно соединенные блок считывани , блок инверторов и первый блок совпадени , второй блок совпадени и регистр, входы которых соединены с выходами блока считывани , первый три1 гер, первый вход которого подключен к выходу второго блока совпадени , выход - к первому входу третьего блока совпадени 2.The closest to the present invention is an information input device comprising serially connected reading block, inverter block and first matching block, second matching block and register, whose inputs are connected to the outputs of the read block, the first three characters, the first input of which is connected to the output of the second block match, output to the first input of the third block of match 2.

Однако устройство имеет низкую надежность .However, the device has low reliability.

Цель изобретени - повышение надежности устройства.The purpose of the invention is to increase the reliability of the device.

Поставленна цель достигаетс тем, что устройство содержит последовательно соединенные первый счетчик, второй триггер и формирователь импульсов, генератор импульсов , инвертор, четвертый блок совпадени и второй счетчик, первый вход которого соединен с выходом первого блока совпадени , первым входом первого счетчика и входом инвертора, второй вход - с выходом четвертого блока совпадени и вторым входом первого счетчика, выход - с другим входом второго триггера,,выход которого соединен со, входом третьего блока совпадени , выход генератора импульсов соединен с другим входом первого блока совпадени и первым входом четвертого блока совпадени , второй вход которого соединен с выходом инвертора, выход формировател импульсов подключен ко второму входу первого триггера и вхбдом регистра .The goal is achieved in that the device comprises a first counter, a second trigger and a pulse shaper, a pulse generator, an inverter, a fourth match block and a second counter, the first input of which is connected to the output of the first match block, the first input of the first counter and the input of the inverter, and the second the input is with the output of the fourth match block and the second input of the first counter, the output is with another input of the second trigger, the output of which is connected to the input of the third match block, the output of the generator The pulse torus is connected to another input of the first matching block and the first input of the fourth matching block, the second input of which is connected to the output of the inverter, the output of the pulse shaper is connected to the second input of the first trigger and the register register.

На чертеже изображена блок-схема устройства .The drawing shows a block diagram of the device.

Устройство содержит блок 1 считывани ,The device comprises a reading unit 1,

Claims

block 2 inverters, register 3, first block 4 matches, fourth block 5 matches, second block 6 matches, third block 7 matches inverter 8, second counter 9, first counter 9, first counter 10, second flip-flop 11, driver 12 pulses, first trigger 13, the generator 14 pulses. The device works as follows. In the absence of a perforating circuit in the path, the photodiodes of the readout unit 1 are illuminated and the second match unit 6 turns off the first trigger 13, the third match block 7 is blocked by the absence of an enable signal from the output of the first trigger 13 and the transmission of clock pulses in the computer is impossible. The clock pulses from the output of the pulse generator 14 through the fourth block 5 of the coincidence block zero the first counter 10 and arrive at the counting input of the second counter 9, the output of which turns off the second trigger 11 of the clock pulses. When the front edge of the perforantor passes under the photohead, all photodiodes of the readout unit 1 are darkened and through the inverter unit 2 the first coincidence unit 4 is activated, the fourth coincidence unit 5 is blocked, the second counter 9 is zeroed, and the pulse generator 14 is connected to the counting input of the first counter 10. The operation of the first coincidence unit 4 occurs synchronously with the change in the input signals of the photodiodes of the readout unit 1. Switching off the first matching block 4 triggers the fourth block 5 to match via the inverter 8 and clears the first counter 10. Therefore, the output signal is first. Counter 10 is generated when a series consisting of N pulses is received at its counting input, where N is the division ratio of the counter, which is possible only when the photo-head enters the zone of stable darkening of all photodiodes. The output of the first counter 10 includes a second trigger AND, at the output of which a sync pulse is generated, which prompts the input of the third block 7 to coincide but not enter the computer due to the lack of an enable signal from the first trigger 13. When the photo hole appears under the photo head of the readout block 1 to the operation of the fourth coincidence unit 5, the first counter 10 is zeroed, and the output of the second counter 9 turns off the second trigger 11, forming the trailing edge of the sync pulse. On the falling edge of the clock pulse generator 12 pulses the register 3 and turns on the first trigger 13. Information from the output of read block 1 is written to register 3. At the end of the perforations, all photo diodes of read block 1 are darkened and the second trigger 11 generates a clock pulse, which through the third block 7 the coincidence enters the computer due to the presence of the enable signal from the first trigger 13. The information accumulated in register 3 for the time of reading the percussion speaker enters the computer. Upon further movement of the perforant, the reading process is repeated until the reading of information from the last percolumn ends. When the perfonitel comes out from under the photo head, the second coincidence unit 6 is broken again, the first trigger 13 is turned off, and the transfer of information from register 3 to the computer is prohibited. Claims An information input device comprising serially connected reading block, inverter block and first matching block, second matching block and register, the inputs of which are connected to the outputs of the read block, the first trigger, the first input of which is connected to the output of the second matching block, the output to The first input of the third coincidence unit, characterized in that, in order to increase the reliability of the device, it contains the first counter, the second trigger and the generator of the impulses of the gene pulse generator, inverter, fourth coincidence unit and second counter, the first input of which is connected to the output of the first coincidence unit, the first input of the first counter and the inverter input, the second input to the output of the fourth coincidence unit and the second input of the first counter, output with a different input of the second trigger , the output of which is connected to the input of the third coincidence unit, the output of the pulse generator is connected to another input of the first coincidence unit and the first input of the fourth block is the same, and the second input of which is connected to the water invert pa, the pulse shaper output is connected to the second input of the first latch and register inputs. Sources of information taken into account in the examination 1.AR USSR Certificate of Mountain No. 45800., cl. G 06 F 3/02, 1972.

2. USSR author's certificate number 423117, cl. G 06 F 3/02, 1971 (prototype).

In the computer

SI S ZVM