SU805408A1 - Device for recording and reproducing digital information - Google Patents

Description

(54) DEVICE FOR RECORDING AND REPRODUCTION OF DIGITAL INFORMATION

To this end, a device for recording and reproducing digital information containing a measuring unit connected by one output to a recording control unit, a sync generator, a tape drive whose inputs are connected to the outputs of recording amplifiers / and outputs to the inputs of playback amplifiers, a control unit playback and a switch connected to the output of the device, are introduced in series n-bit ternary and n-1-bit binary counters, the inputs of which are connected. with both outputs of the meter of the block, n-1-bit and p-bit registers and parallel-serial code converters, the first inputs of each of which are connected to the outputs of the n-bit ternary and n-1-bit binary counters, respectively, the second the output of the recording control unit, and the outputs to the inputs of the recording amplifiers, and the third input.second parallel-to-serial code converter is connected to the output of the generator-pulses, the information input of the n-1-bit register and the input of the playback control unit are connected to the output one of the playback amplifiers, and the corresponding inputs of the n-bit registers to the output of another playback amplifier, the shift inputs of all three registers are connected to one output of the playback control unit, and its other output and the outputs of all registers are connected to the switch inputs.

The drawing shows the functional scheme of the device.

It contains a measuring unit (measuring instrument) 1, a combined counter 2, formed by a n-bit ternary 2 connected in series and an n-1-bit binary switch 2, a generator 3, synchronous pulses, a write control block, parallel-to-serial 5 b code converters, amplifiers 7 and 3 recordings, one-shot 9, storage device 10 on a magritic tape, reproduction amplifiers 11 and 12, dizdy 13-16, inverter 17, p-bit (shift) registers 18 and 19, n-1-bit (with wigacilli) register 20, one-shot 21, control block 22 is reproduced and the switch (computer input) 23.

The device works as follows.

From the first output of the measuring device 1, a series of pulses is fed to a combined counter 2, which consists of three-digit bits and n-1 binary bits, connected in series. At the end of the measurement

from the measuring device 1 signal. The end of the measurement is fed to parallel-to-serial converters 5 and b of the code. With the parallel-serial converter 5 of the code, the signals in the ternary code are supplied for recording on the first track of the magnetic medium. With a parallel-to-serial converter 6 of the code, the signals of the binary code are supplied for recording onto the second track of the magnetic medium after recording a clock pulse on it. The combination O, 1, 2 is recorded with the following pulses: 1 - with a negative pulse; 2 - positive impulse; Oh - the absence of these two pulses. On the second track of the magnetic carrier, the synchronizing pulse is recorded with a positive pulse, 1 with a negative pulse, O with the absence of these pulses.

During reproduction, the signal from the first output of the magnetic storage ring 10 is supplied to the amplifier 11 in the reproduction. From the first track of the magnetic carrier, signals are transmitted in a ternary code. those. in two sexes x. These signals after the reproduction amplifier 11 are separated by diodes 13 and 14. Only negative pulses pass through diode 13, which correspond to 1 in the ternary code, and positive pulses corresponding to the same code through diode 14. Passing through diode 13 1 is recorded during the period of the discharge of the n-bit shift register 18, and the positive signal (2) from the diode 14 through the inverter 17 is recorded for the first time, p and i-bit shift register 19. Thus, recorded in the ternary code information from the first track of the magnetic carrier enters the Tia shift registers 18 and 19.

From the second output of the magnetic storage device 10, the reproduction amplifier 12 signals are fed to diodes 16 and 15. A clock pulse passes through the diode 15, which is fed to the input of the one-shot 21, the output of which goes to the playback control unit 22. Through diode 16, signals are applied to the first bit of an n-1-bit shift register 20 (1 in the form of negative pulses).

When information is recorded in the first bits of shift registers 18 and 19, the magician from the second track is recorded. Through the playback amplifier 12, the diode 15 and the one-shot 21 on the playback control block 22, a sync pulse is applied, which starts this block.

Claims (2)

The first pulse from the first output of the playback control unit 22 transfers information from the first bit of the shift registers 18 and 19 to the second, and 4) the new information of the magnetic storage device 10 is recorded in the released bit. In this tact of the device, the playback from the second track of the magnetic media is recorded the first bit of the shift register 20 .. The next pulse from the first output of the playback control unit 22 transfers information from the second bit of the shift registers 18 and 19 to the third, and sdviggyoschem re giste 20 - from the first to the second. The incoming information from both outputs of the magnetic storage device 10 is recorded in the first bits of the shift registers that have been released 18. The 20th nth pulse from the first output of control unit 22 playback completes the transfer of information to the last bit of all shift registers, and at the end of this All bits 1X of these registers 18–20 are recorded information, including the results of a single measurement. All bits of the registers 18-20 are filled, at which time a pulse arrives at the second output of the playback control unit 22 at the input switch 23, which turns it on, and information from the shift registers 18-20 is sequentially entered into the computer. Using the proposed device for recording digital information on a magnetic storage device, without changing the quantization frequency of the measured signal, improves the recording accuracy, and when recording fast processes with an increased Quantization frequency, without sacrificing accuracy, it allows you to record more digital information. The invention is a device for recording and reproducing digital information containing a measuring unit connected by a single output to a recording control unit, a clock generator, a tape drive whose inputs are connected to the outputs of recording amplifiers, and outputs to the inputs of playback amplifiers, A control unit, a playback unit, and a switch connected to the output of the device, characterized in that, in order to increase the recording density and the accuracy of the device, it contains connected in series The three-way and p-1-bit binary counters, whose inputs are connected to both outputs of the measuring unit, n-1-bit and, n-bit registers and parallel-to-serial code converters, the first inputs of each of which are connected to the outputs. n-bit ternary and n-1-bit binary counters, the second to the output of the write control unit, and the outputs to the input of recording amplifiers, and the third input of the second parallel-to-serial code converter is connected to the output of the pulse generator, The information input of the n-1-bit register and the input of the playback control unit are connected to the output of one playback amplifier, and the corresponding inputs of the n-bit registers are connected to the output of the other playback amplifier, the shift inputs of all three registers are connected to one output of the control unit, lazy playback, and its other output and outputs of all registers are connected to the inputs of the switch. Sources of information taken into account in the examination 1. US patent 3274611, cl. 34674, published. 1966. I 2.Varlamov V.A. and others. A multichannel device for recording biological information on a magnetic tape of a household tape recorder. Sat ttetodical issues and technical support of the physiological experiment, m., Nauka, 1976. h / 7 / eight on bff