SU994918A1 - Digital data recorder - Google Patents

Description

(5) DIGITAL INFORMATION RECORDER The invention relates to instrument engineering and can be used in multi-channel systems for graphically recording information presented in digital form. A recording device is known that provides multi-channel graphic registration with the identification of graphs. Tl The disadvantage of this device is its complexity. The closest to the invented1 ") is a registering device containing a register, a control unit, the inputs of which are connected to the outlets of the tape mechanism, and the outputs on the inputs of the counter and the register, and the comparison circuit connected to the outputs of the counter and register 21 the recording density is low, since on one scan line on the ordinate axis only one value of the recorded value can be recorded. The aim of the invention is to increase the information recording density. The goal is achieved by introducing a modulator of brightness and an information converter into the device, the input of which is connected to the register output, and output 1- to the input of the brightness modulator, which is connected to the input of a tape mechanism at the output, and the output of the comparison circuit luminance information converter is made either in the form of a code converter in a time interval, the inputs of which are connected to the output of the control unit and the output of the tape-testing mechanism, or in the form of n comparison circuits, where n 1,2,. ,,, inputs to which are connected to the output of the counter, or in the form of n comparison circuits (n 1,2, ...,) and a code-to-time converter, the inputs of which are connected to the output of the control unit and the output of the tape mechanism, the inputs of the comparison circuits are connected to the output of the counter . Fig. 1 shows a registrar circuit with an information converter, made in the form of a code converter in a time interval; in fig. 2 - location of the recorded information on the recording medium; I in FIG. 3 shows a registrar circuit with an information transformer, made in the form of n comparison circuits. The recorder (Fig. 1) contains a register 1, a code converter 2 in a time interval, a comparison circuit 3, a brightness modulator, a counter 5, a control device 6, a tape drive, and a 7 recorder mechanism working as follows. In the tape mechanism 7 (LPM, the scan on the abscissa axis (axis X) is carried out by continuous or discrete movement of the information carrier (for example, electrothermal paper), and the scan on the axis of ordinates (axis y) is carried out, for example, using a linearly moving writing element The control unit (CU) 6 generates the commands necessary to control the recorder's electronic circuit. The command from COO 6 arriving at an external device (not shown) serves as a request for issuing two code layers to the input of register 1 from the external device We register information corresponding to the next values.On a command from LSM 7 about the end of the sweep along the ordinate axis (y axis), the information carrier is shifted by one sampling along the X axis, and the CU 6 generates a pulse that sets the counter 5 to zero state and rewriting the input code layers in register 1. A pulse from LSM 7, corresponding to the beginning of the sweep along the ordinate axis Y arrives at the control unit 6, which from this moment begins to generate counting pulses, ensuring the operation of the counter 5 and the code converter I broke 2. The pulse of the beginning of the sweep along the ordinate axis Y c-LPM 7 is also fed to the converter 2 of the code in the time interval, which from this moment produces a pulse, the duration of which is proportional to the code of digital information at its input. At the time of the creation of the code at the output of the counter 5 and the code at the input of the comparison circuit 3, a pulse is generated at the output of the latter, arriving at one of the inputs of the brightness modulator k, to the other input of which a pulse is output from the converter 2 of the code at a time interval. The modulator TS luminance records on the information carrier a signal arriving at it from the converter 2 codes in a time interval, in the form of a line (dash) of one luminance, and a signal arriving at it from the comparison circuit 3, in the form of a label (point) Other luminance different from the brightness of the strokes. Thus, during one scan cycle along the Y axis, two digital information is recorded on the information carrier, one of which is a dash, the length of which is proportional to the code value of this information, and the other in the form of a dot, the distance from the beginning of the second information and the magnitude of The code of the bone is different from the brightness of the stroke. Line recording is preferred for digital information, the magnitude of which varies dramatically between two adjacent sweep cycles along the y axis, and point recording is preferred for digital information that changes slowly, for example, to record averaged parameters. An example of recording digital information on a storage medium is shown in Fig. 2. In the case of the information converter being executed in the form of n comparison circuits (p 1,2, ...,) (Fig. 3) each code word coming from the register to the comparison circuit 3, characterizes certain logged information. The impulse with LPM 7, corresponding to the beginning of the sweep along the Y axis, goes to the CU 6, which from this moment begins to generate counting pulses that ensure the operation of the counter 5. The impulse to the start of the sweep along the Y axis (zero count pulse) also goes to the modulator k of the brightness . At the moments of equality of the code, the output circuits of the counter 5 and the code words stored in register 1 trigger comparison circuits whose output pulses go to the luminance modulator k. Modulator output pulse amplitude

The luminance depends on which of its inputs receives a signal. Depending on the amplitude of the output pulses of the luminance modulator j, fed to the tape drive mechanism 7, tags (points) of different luminance are recorded on the information carrier. During one scan cycle along the Y axis, a zero reference point and the ordinates of codeword values are recorded in the form of distances of points of different brightness from the zero reference point. During a series of scan cycles along the Y axis, the digital and information on the carrier is represented as lines, formed by dots and differing from each other by different brightness.

Thus, the recorder of FIG. 3 allows the registration of the values of the code words as lines of different brightness, the ordinates of which points with respect to the point of the zero reference line quantify the values of the code words.

The operation of the registrar in the case of executing the information converter in the form of a code converter in the time interval and n comparison circuits (n 1,2, ...) of particular explanations

does not require, t.: to how the work of individual parts, i.e. the code-to-time converter and the comparison circuits are described in the | | above. In this case, one digital information in the form of strokes and n digital information in the form of lines with different intensities, differing from the strokes of strokes, are recorded on the record carrier in a series of cycles of expansion 1 on the Y axis.

The proposed device, in addition to increasing the recording density a, therefore., And saving the carrier, also provides, in comparison with the known device, an increase in the speed of recording and registering 1 of the values of several parameters in the same time scale.

Claims (2)

1. A digital information recorder containing a register, a control unit whose inputs are connected with the outputs of the tape mechanism and the outputs with the inputs of the counter and the re-V hystera, and a comparison circuit connected to the outputs of the counter and the register, characterized in that, in order to increase the information recording density, a luminance modulator and an information converter are inserted into it, the input of which is connected to the register output, and the output to the input of the luminance modulator, the output of which is connected to the input of the tape drive mechanism, the output of the comparison circuit is connected to the input of the luminance modulator, 2. The recorder of claim 1, wherein the information converter is designed as a code-to-time converter, the inputs of which are connected to the output of the control unit and the output of the tape drive mechanism. 3 The registrar according to claim 1, that is, in that the information converter is made in the form of a reference circuit, where P t, 2.3, .o., And the inputs of the comparison circuit are connected to the output of the counter. k. The registrar according to claim 1, that is, that the information converter is made in the form of a code-to-time converter and n comparison circuits, where n 1,2,3, ..., and the inputs of the code-to-time converter are connected to the output of the control unit and the output of the tape drive mechanism, the inputs of the comparison circuits are connected to the output of the counter, SOURCE1 of information taken into account in the examination 1 USSR Author's Certificate No. 599162, cl. G 01 O 9 / pO, 1975. 2. USSR author's certificate № УУУ + З, cl. G 01 D 9/02, 1978 {prototype). ABOUT- X- zv./ fug. 2 H. . fg / g