SU517177A1 - Device for coupling data transmission equipment with information source - Google Patents

Description

one

The invention relates to the transmission of data over communication channels.

A device for interfacing data transmission equipment with an information source is known, comprising an information receiving unit. control unit connected to the shaper of the request signal of the next combination, the output of which is connected to the setup input of the input drive,

The purpose of the invention is to simplify the device.

In the proposed device, the output of the information receiving unit through the OR element is connected to the information input of the input accumulator, the YESEUT of which is connected to the zero input of the trigger, the unit and zero outputs of which are connected to the control unit, and the output of the signal generator of the next combination is connected to the single trigger input and - to the first input of the control unit and to another input of the OR element a single trigger output is connected through the AND element, to the other input of which a signal is given a pulse followed by .

The drawing shows a block diagram of the device.

Claims (1)

A control unit 2 is connected to the information receiving unit; it is connected to the signal generator of the next combination request (OCR) 3. The output of the control unit 2 is connected to the setup input of the input drive 4, and the output of the information reception unit 1 is connected through the OR input 5 to the information input of the drive 4 The output of which is connected to the zero input of the trigger 6. The single and zero outputs of the trigger are connected to the control unit 2, and the output of the signal generator OCR 3 is connected to the single input ION 2 and to the other input of the OR gate unit 5 is connected output of flip-flop 6 via the AND gate 7, 8 to the other input of which is supplied a signal pulse support (IP) from an information source (not shown in the drawing). Inputs 9 and outputs 10, 11 are also associated with said source of information. The device works as follows. When the subscriber is addressed in the control unit 2, a signal is generated, at which the output of the generator 3 shows an OCR signal. On the signal of the OCK, the input drive 4 is prepared (cleared) to receive signals from the OR 5 element, the trigger 6 is set in a single state. In this case, the signal from the single output of the trigger 6 as the resolution signal is fed to the element 7 and the control unit 2, after which the latter is prepared to receive the IC signal coming at its input 8 from the element 7, At the output of the control unit 2, connected to the setup input of the input accumulator 4, the strokes necessary for recording signals to the accumulator begin to form. In response to the signal of the OOK from the output 11 of the device from the source of information on the tracking strokes coming to it from the output 10 of the device, come the signal of the IC, leading by one clock cycle, a sequence of pulses of information arriving at the input 9 of the device, which through element 7 reaches the control unit 2 and through element OR 5 is recorded into the first digit of the input accumulator 4. In response to the signal of the IC in the control unit 2 a signal is generated by which block 1 prepares to receive information. After that, after one period of tracking cycles through block 1 and the element OR 5, information begins to flow to the information input of the input drive 4. As it arrives, the IC signal recorded in drive 4 moves to its output and appears after receipt of the last but one last bit of information, which is detected by trigger 6. At the same time, from the zero output of trigger 6, the control unit 2 receives a resolution signal, which means that one more clock cycle should be sent to the installation input of the accumulator 4 to receive the last bit of information. After that, a signal is received from the control unit 2 to the information receiving unit 1, which in the latter blocks the subscriber information arrival chain. The described state of the elements of the device is preserved until information is output from the input storage device 4 to the output 12 of the device associated with the data transmission equipment, after which the exchange resumes at the signal of the OCR. Apparatus for interfacing data transmission equipment with an information source, comprising an information receiving unit, to which a control unit is connected, connected to a request generator of a regular combination, the output of which is connected to the input input of the storage unit, in order to simplify it , the output of the information receiving unit through the element OR is connected to the information input of the input storage device, the output of which is connected to the zero input of the trigger, the unit and output outputs of which The control unit is connected to the control unit, and the output of the signal generator for the next combination is connected to the single trigger input, and the corresponding trigger output is connected to the corresponding input of the control unit and the other input of the OR element, to the other input of which a signal is sent. CN f  f /P