SU409072A1 - DEVICE FOR PROCESSING OF INFORMATION - Google Patents

Description

one

The invention is intended for automated processing of information accumulated on a magnetic tape.

Information processing devices are known that contain a playback unit connected to an analog-to-digital converter and to time stamp amplifiers and information selection block mode, the control trigger of which is connected to the OR circuit, a digital converter with a decoder and the AND circuit, a generator of the reference frequency. The inputs of the digital converter circuit are connected respectively to the outputs of the amplifiers of time stamps and the mode of the information selection block.

However, in known devices, it is difficult to select calibration signals recorded on a tape recorder at the beginning of each mode, which leads to an increase in time and a decrease in the accuracy of information processing.

The purpose of the invention is to increase the speed and accuracy of information processing.

This is achieved by the fact that the proposed device contains a block for selecting the attributes of calibration signals, one of the inputs of which is connected to the output of the AND circuit, other inputs to the decoder and the AND circuit of the digital converter, and its outputs are connected to other inputs of the OR circuit, the output of which connected to one of the circuit inputs

"AND. The other input of the circuit is connected to the reference frequency generator, and its output is connected to the analog-to-digital converter.

FIG. 1 shows a block diagram of the device;

in fig. 2, ab - timing diagrams, as described, principle of operation of the device.

The device consists of a playback unit 1, an information selection unit 2 with amplifiers 3, 4 time stamps and modes and a control trigger 5, a digital converter 6 with an AND 7 circuit and a decoder 8, a reference frequency generator 9 connected to one of the circuit inputs "AND 10. The second input of the circuit" AND 10 is connected to the output of the circuit "OR 11. Through the analog-digital converter 12, information from the playback unit 1 enters the processing line 13. The block 14 for selecting the signs of calibration signals contains delay elements 15 and

16, the outputs of which are connected respectively to the installation inputs “1 flip-flops 17 and 18; installation inputs "About these triggers are connected to the outputs of the decoder 19 connected to the counter 20.

The device works in the following way.

With magnetic tape playback unit

Signals simultaneously arrive (Fig. 2, a)

minimum (O-ti), maximum (i- / 2)

calibration levels and measurement information () to the input of the analog-to-digital converter and through amplifiers of time stamps and mode of the information selector unit and the pulses of mode marks (Fig. 2, b) and time (Fig. 2, c) on the input of the And 7 digital circuit converter FIG. 2, b, the dotted line shows the position of the second-bit pulse (2i) of the mode number code. To simplify the drawing, only two bits of the mode number code are depicted (2o and the number of bits may be more. In the time interval from / i to / 2. When the maximum calibration signal is recorded (Fig. 2a), before the first bit The house of the mode number code (c |) ig. 2, b) records the calibration indication pulses at times t, t, / synchronously with the time stamp pulses (Fig. 2, c), which are recorded by groups of pulses following with the determined frequency ( in Fig. 2, in shown four pulses in a group). With an increase in the number of bits of the mode number code (Fig. 2, b) and the same number, it is necessary to increase the number of pulses in coarse (Fig. 2, c), since they are synchronizing when the mode number code is decrypted. In case of coincidence of the first pulse of the mode mark (Fig. 2, b) (this pulse is recorded at the beginning of each mode) with the first synchronizing pulse of the time stamp (Fig. 2, c), the output of the And 7 digital converter circuit produces a pulse (Fig. 2 , d), which is fed to the input of the delay element of the attribute selection unit of the calibration signals. From the output of element 15, a pulse delayed by time Tzad1 (Fig. 2, e), greater than the transition time of the on-L1 minimum calibration signal / y, (Fig. 2, a), enters the input of the “1 flip-flop 17, output voltage which (Fig. 2, e) through the circuit "OR AND is fed to one of the inputs of the circuit" AND 10. At the same time, the pulses (Fig. 2, n) from the output of the generator 9 of the reference frequency pass through the circuit "AND 10, interrogate the analog the digital converter 12 and the minimum calibration signal (FIG. 2, p) are fed to the processing line 13. At the same time, the pulses from the output of the circuit "And 10 are fed to the input of the counter 20 of the block for selecting the features of the calibration signals. The counter counts "i pulses (Fig. 2, n), the number of which is proportional to the required and sufficient input time in the processing line of the minimum calibration signal, and on the output bar of the decoder 19 a pulse is produced (Fig. 2, g), which arrives at the installation "On the trigger 17, it flips it (Fig. 2, e), the And 10 scheme closes and the input to the processing line of the minimum calibration signal (Fig. 2, p) stops. When the maximum calibration sigpal is reproduced in time from / i to / 2 (Fig. 2, a), the decoder 8 of the digital converter from time point 3 (Fig. 2, b) to / 5 produces a voltage emulsion (Fig. 2, h), the leading edge of which is delayed by the time Tzad, necessary for overlapping the transition process of turning on the maximum calibration signal / y (Fig. 2, a). From the output of the element 16, a pulse (Fig. 2, I) is fed to the installation input of the "1 flip-flop 18, the output voltage of which (Fig. 2, k) through the OR 11 circuit is fed to one of the inputs of the AND 10 circuit. In this case, the pulses (Fig. 2, n) from the output of the reference frequency generator passes through the AND circuit and is fed to the input of the analog-digital converter and to the counter input 20. A maximum calibration signal (Fig. 2, p) is entered into the processing line. When the counter 20 counts cs pulses (Fig. 2, n), the number of which is proportional to the necessary and sufficient time to enter the processing line of the maximum calibration signal, a pulse is generated at the other output pin of the decoder 19 (Fig. 2, l), which, as an input setting "On the trigger 18, flips it (Fig. 2, k), the And 10 scheme closes and stops entering the maximum calibration signal processing line (Fig. 2, p). The input to the processing line of the measuring information section is made by a signal (Fig. 2, m) from the output of the control trigger 5 of the information selection block, which is fed through the "OR 11" circuit to one of the inputs of the "AND 10 circuit. At the same time, the pulses (Fig. 2, n) from the output of the generator 9 of the reference frequency through the circuit "AND 10 interrogate the analog-digital converter 12 and the section (Fig. 2, p) of the measurement information is entered into the Processing line. The beginning and end of this section are selected by the time stamps (Fig. 2, c) in the information selection block. Object of the Invention An information processing apparatus comprising a playback unit connected to an analog-to-digital converter and amplifiers of time stamps and mode of an information selection block, the control trigger of which is connected to one of the inputs of the OR circuit, the digital converter, the decoder inputs and the circuit of which connected to amplifiers of time stamps and information block selection mode, a reference frequency generator and an AND circuit, characterized in that, in order to increase speed and accuracy of information processing, it contains a block for selecting the characteristics of calibration signals, one of the inputs of which is connected to the output of the AND circuit, the other inputs to the decoder and the AND circuit of the digital converter, and its outputs are connected to other inputs of the OR circuit, the output of which is connected to one of the circuit inputs “And, the other input of which is connected to the generator of the reference frequency, and its output is connected to the analog-digital converter.