SU886299A1

SU886299A1 - Device for converting input binary signals

Info

Publication number: SU886299A1
Application number: SU792826399A
Authority: SU
Inventors: Виктор Израилевич Заславский; Владимир Львович Ройзин; Арон Исаакович Трест
Original assignee: Предприятие П/Я В-8791
Priority date: 1979-09-20
Filing date: 1979-09-20
Publication date: 1981-11-30

Description

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Изобретение относитс к устройствам передачи данных и может использоватьс в устройствах вы влени ошибок при передаче двоичной информации.The invention relates to data transmission devices and can be used in devices detecting errors when transmitting binary information.

Известно устройство дл преобразовани входных двоичных сигналов аппаратуры передачи данных, содержащее первый амплитудный селектор, первый вход которого соединен с первым входом второго амплитудного селектора и вл етс одним из входов устройства, другим входом которого вл етс второй вход второго амплитудного селектора, соединенный со вторым входом первого амплитудного селектора, выход которого через инвертор подключен к первому входу выходного триггера 1.A device for converting input binary signals of data transmission equipment is known, comprising a first amplitude selector, the first input of which is connected to the first input of the second amplitude selector and is one of the inputs of the device, the other input of which is a second input of the second amplitude selector, connected to the second input of the first amplitude selector, the output of which through the inverter is connected to the first input of the output trigger 1.

Однако известное устройство имеет низкую достоверность преобразовани .However, the known device has a low reliability of conversion.

Цель изобретени - повышение достоверности преобразовани путем определени обрыва линии на входах устройства после установлени соединени ..The purpose of the invention is to increase the reliability of the conversion by determining the line breakage at the inputs of the device after the connection is established.

Дл достижени поставленной цели в устройство дл преобразовани входных двоичных сигналов аппаратуры передачи данных, содержащее первУй амплитудный селектор, первый вход которого соединен с первым входом второго амплитудного селектора и вл етс одним из входов устройства, другим входом которого вл етс второй вход амплитудного селектора, соединенный со вторым входом первого амплитудного селектора, выход которого через инвертор подключен к первому To achieve this goal, a device for converting input binary signals of data transmission equipment contains a first amplitude selector, the first input of which is connected to the first input of the second amplitude selector and is one of the inputs of the device, the other input of which is the second input of the amplitude selector connected to the second input of the first amplitude selector, the output of which through the inverter is connected to the first

10 входу выходного триггера, введены дополнительный инвертор, включенный между выходом второго амплитудного селектора и вторым входом выходного триггера, и последовательно соеди15 ненные эле 1енты И и элемент задержки, выход которого подключен к третьему входу выходного триггера, при этом выходы первого и второго амплитудных селекторов подключены ко входам 10 to the output trigger input, an additional inverter is inserted between the output of the second amplitude selector and the second input of the output trigger, and connected in series to the element 1ent And and a delay element whose output is connected to the third input of the output trigger, while the outputs of the first and second amplitude selectors are connected to the entrances

20 элемента И.20 elements I.

На чертеже представлена структурна электрическа схема предлагаемого устройства.The drawing shows a structural electrical circuit of the proposed device.

Устройство дл преобразовани Device to convert

Claims

The 25 input binary signals of the data transmission equipment contain the first 1 and second 2 amplitude selectors, the inverter 3 and the additional inverter 4, the AND element 5, the delay element 6 and the output trigger 7. The device works as follows. When there are signals at the input of the device, corresponding to certain positions, for example, A and Z /, at the outputs of different amplitude villages of Rector 1 and 2, respectively, appear (after inverting in Inverters 3 and 4), single control signals of the output trigger 7. At the same time, at the output of the element 5, short control signals appear, the duration of which is equal to the duration of the edges and cuts of the input signals at the threshold level of the amplitude selectors 1 and

2. Since the delay time of element 6 is chosen to be a knownly longer possible duration of the fronts and a slice of the input signals, no signal appears on the output of element 6 of the impact on the output transducer .7. When signals at the device inputs disappear, the corresponding positions A and Z are simultaneously at the output am. Loud selectors 1 and 2, unit potentials appear, and at the outputs of inverters 3 and 4, zero-level signals that do not affect the output trigger 7. The presence of unit potentials at the inputs of the element And 5 leads to appearance at the output of element b delays through a time equal to the selected time of the control signal. With this signal, the output trigger is set to the position corresponding to the presence at the device input of the position A. Thus, in the proposed device, when the line is broken after the connection is established, the output trigger 7 is set to the position corresponding to receiving the starting position at the input of the device, i.e. in which a break is fixed in the device after a certain time has elapsed and, therefore, a false error count is excluded. Information about the disappearance of the input signals of both polarities simultaneously (line break) in the form of a control signal by the output trigger 7 can be displayed directly on the indicator. The proposed device allows to increase the reliability of the information conversion j transmitted in the form of binary signals. Claims An apparatus for converting input binary signals of a data transmission apparatus comprising a first amplitude selector, the first input of which is connected to the first input of the second amplitude selector and is one of the inputs of the device, the other input of which is a second input of the second amplitude selector connected to the second input cervbo amplitude selector, the output of which through the inverter is connected to the first input of the output trigger, characterized in that, in order to increase the reliability of By detecting a broken line, at the inputs of the device after the connection is established, an additional inverter is inserted in it, connected between the output of the second amplitude selector and the second input of the output trigger, and the series-connected And elements and the delay element whose output is connected to the third input of the output trigger , while the outputs of the first and second amplitude selectors are connected to the inputs of the element I. Sources of information taken into account during the examination 1. The input device to the kit app ture Accord transmission data.-RYU2. 770. 033.T07, 1978.