SU1216651A1 - Arrangement for recording bipolar signals - Google Patents

Abstract

The invention relates to instrumentation, can be used to record information in graphical form and allows you to increase the density of information recording by eliminating the zone for recording the sign of information and improve the identification of information about the value with the corresponding information about the sign during an abrupt change of the sign of information from one implementation to other. For this, the device contains an information output unit 1, a code time converter 2, a control device 3, a tape drive mechanism 4 and an input terminal 5. A new one is that the device contains a luminance modulator 7, a signal generation unit 6. in the form of a pulse former and cxei4 r И, connected with each other and with other nodes of the device in a certain way. 1 з.п, ф-л, 3 Il. . "Ft /

Description

I

The invention relates to instrumentation n can be used to record information in a graphical form,

The purpose of the invention is to increase the information recording density by eliminating the zone for recording the sign of information and improving the identification of information about the value with corresponding information about the sign during an abrupt change of the sign of information from one implementation to another.

FIG. a functional diagram of a device for recording bipolar signals is presented; in fig. 2 - examples of recording information; in fig. 3 is a functional diagram of a sign signal generation unit.

The device for registration of bi-polysignal signals contains a unit for issuing information (IVI), a code 2 converter in a time interval (PKI2), a control unit 3 (HSS), a tape drive mechanism 4 (LSM 4), an input terminal 5, a sign signal generation unit 6 , the modulator 7 of brightness, the pulse shaper 8 and the circuit AND 9, the block 6 forming the sign signal (VFS 6) at the first input is connected to the sign output of the information block 1, the second input is connected to the output of the converter 2 of the code in the time interval and first modulator input 7 p bones, and on the output - with the second input of the luminance modulator 7, which is connected to the tape-driving mechanism 4 at the output. In addition, the sign signal generation unit 6 is made in the form of sequentially connected impulse generator 8 and the I-9 circuit.

The device works as follows.

In LSM 4, the scan on the Gos Y axis is, for example, using a writing element moving linearly across the information carrier, and the scan on the abscissa axis (x axis) by discrete or continuous movement of the information carrier, for example electrothermal paper. The CU 3 generates commands necessary for the device to operate to register bipolar signals with a Pulse received from CU 3 and the digital code of the next ordinate value is recorded.

I6f-5l2

DIMA information from terminal 5 to NRI1 1 and the launch of the recorder.

Upon receipt of the CU 3 clock pulse 4 begins the next

5 p, ICL sweep along the y axis. PKI 2 from UU 3 receives a reference frequency and a start-up pulse No. 1, with the arrival of which PKI 2 generates a time interval proportional to

10 absolute value of a digital code arriving at PKI 2 from BVI 1,

The time interval from the CRP 2 output goes through the first input of the luminance modulator 7 to L11M 4, where pels also appears on the recording media as a stroke, the length of which is proportional to the digital code at the output of BVI 1, and the brightness of the stroke can take on two gradations of brightness

20 f depending on which logical level goes to the second input of the brightness modulator 7. If the second input of the modulator 7 luminance log. Oh, the stroke is recorded on the nose.

25 tele records, for example, in the form of a stroke of medium brightness, and if at the second input of the modulator 7 brightness Log. 1, then the stroke on the recording medium has a higher brightness. If, for example

30 measures, the positive sign of the registered code from the output of the character bit BVI 1 is fed to the first input of the BFS 6 as a Log. 1, and at the second entrance of the BFS 6 there is a temporary

, the interval from the output of PKI 2, then from the output of the BFS 6 to the second input of the modulator 7 of brightness, the time interval is received by the level Log. 1 and it will be fixed on the recording medium with an increased gradation of luminance (Fig. 2.1). In the case of a negative sign of the registered digital code from the output of the sign bit BVI 1, the Log goes to the input of the BFS 6. A. In this case, at the output of the BFS 6 and the second input of the brightness modulator 7 there is also a Log. O and 1trich registers-: s on the recording medium with an average gradient of luminance.

45

In other embodiments of the recording of the code information mark (Fig. 2.2 and 2.3), the strokes themselves are drawn for both the positive and negative signs of the information.

Teyu, and information about the sign, for example, for a positive sign, is marked with a high-brightness mark at the beginning (Fig. 2.3) or the end of the stroke (Fig. 21

DF of this BFS 6 performs (Fig. JJ in the form of series-connected pulse shaper 8 and circuit 9) Shaper 8 pulse generates a short Impulse from the leading or trailing edge of the time interval that it enters at the input from PKI 2 on the diagram AND 9 Log. 1 (positive polarity of the digital code), coming from the sign bit of the BVI I, through the second input of the luminance modulator 7 is transmitted to the LMD 4 and fixed on the recording medium in the form of marks of the lighted brightness at the beginning (Fig. 2.3 ) or at the end of the stroke a (FIG. 2.2). Record for the case if, instead of a code converter in timeslot 2 is used to mark code converter, and the block mark signal generating is performed in the form of the AND circuit shown in FIG. 2

For n sweep cycles, a bipolar signal is recorded (Fig. 2.1-2.4), with negative information values being recorded, for example, as a dash or a medium luminance point, and positive values of information are either a dash or a high luminance point (Fig. 2.1 or 2.4), either in the form of a mid-brightness stroke with marks of increased brightness, or at the beginning (Fig. 2.3), or at the end of the stroke (Fig. 2.2).

Thus, the proposed device allows in the same AND the same recording area to register as ab-

2I665I

The salt value of the registratable code and its sign.

Claims (2)

1. A device for recording bipolar signals, containing a block of information output, a control device, a tape drive mechanism and a code converter in a time interval connected to the output of the information output block and the output of a control device connected to the tape drive mechanism, characterized in that, in order to increase the information recording density, a luminance modulator and a sign signal generation unit are introduced into it, the first input connected to the sign output of the information output unit, the second input with the output of the code converter into the time interval and the first input of the luminance modulator, and the output with the second input of the luminance modulator, which is connected to the tape drive mechanism with the output, the information output unit is in the form of a register with a sign bit. 2. A device according to claim I, characterized in that the signal signal generation unit is made in the form of a serially connected pulse generator and an AND circuit, with its first input connected to the output of the information issuing unit.