SU1383329A1 - Data input device - Google Patents

Abstract

The invention relates to automation and computing and can be used in information and control computing systems and robotics. The purpose of the invention is the expansion of the field of application due to the possibility of voice transmission. The device contains the first and second groups of amplifiers 2, 17, a group of code converters 3, a group of signal conditioners 4, elements OR 5, code format converters 7, 13, a matching unit 8, a unit of emitters 9, a block of photodetectors II, a power amplifier 12, a group matching units 14, a group of information recovery units 15. The device allows additional voice information to be transmitted along the same lines and with the same characteristics as when transmitting pulse information to remote terminals or to carry out machine exchange for considerable distances. 3 il. (L

Description

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The invention relates to automation and computing and can be used in information and control computing systems and robotics.

The purpose of the invention is to expand the field of application of the device due to the possibility of inputting a speech signal.

 .h FIG. 1 is a block diagram of the device ri.Hiv i liu; in fig. 2 - principled. 11 converters of codes and form-: s.-left signals; in fig. 3 is a schematic diagram of a matching unit and a recovery and information unit. The device comprises a second group of inputs 1, a first group of amplifiers 2, a group of 3 code converters, a group of 4 signal conditioners, elements OR 5, a second group of inputs 6, the first converter of 7 code formats, block 8 matching, emitter unit 9, fiber optic cable 10, photodetector unit 11, amplifier shaper 12, second converter of 13 code formats, group of matching blocks 14, group of information recovery blocks 15, first group in 16 moves, the second group of amplifiers 17, a second group 18 outputs.

A microphone or other source, the information content of which is determined by a change in frequency, can be used as the source of the speech signal.

The device works as follows.

From the source of the speech signal included in this channel through the input 1 of speech, the signal goes to the amplifier 2, where it is amplified by voltage. In the same block, it is necessary to correct the amplitude-frequency characteristics of the spectral components to obtain the parameters corresponding to the natural characteristics of speech.

As amplifier 2, any linear circuit can be used with the possibility of correcting and matching its input with various types of speech sources.

In this case, the gain must be chosen so that the amplifier 2 provides the output voltage of the signal, each component of the spectrum of which must be at least 1.4 times the level that must be applied to the input of the logic elements used.

From the output of amplifier 2, the signal is fed to the input of the converter 3 (Fig. 2). In this block, the positive half-period is transformed into a logical "1, and a negative one into a logical" O. If it is necessary to convert the negative half of the period into a logical "1, and a positive into a logical" O, it is necessary to make elementary changes in the scheme, but the fundamental nature of the operation of the block does not change.

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In the above example (Fig. 2), the positive half period is converted into a logical "1, and into the logical" About denier; ny half period.

The output emitter follower provides a linear transfer of the generated signal to the driver 4, which performs the formation of pulses and intervals with parameters that meet the requirements of the channel elements of the converter 7 of the code formats.

The generated pulses are fed to one of the inputs of the element OR 5, the other input of which is connected to the corresponding terminal of the p-terminal block 6. With the power of the element OR, the input circuits are separated and coordinated with the converters of 7 code formats. The pulses from the output of the element OR 5 arrive at the corresponding input of the converter 7 code formats. Thus, the parallel inputs for each of the n channels to the converter 7 code formats are provided with either converted voice or digital signals.

In converter 7 of the code formats, the parallel data format is converted into a serial format in the incoming information code, the digital sequence is generated in the noise-proof code (for example, in the Manchester code). Digital generated

0, the sequence arrives at block 8 matching. By means of this block, coordination with the input of the radiator 9, the elimination of distortions, the formation of the necessary fronts and amplitudes of the pulses and the permission to transmit are carried out. From the output of block 8, a sequence of pulses arrives at the radiator 9, which is used to generate injection current pulses corresponding to the incoming pulse sequence for controlling the radiator 9. Electrical injection current, converted into an adequate stream of optical signals, is transmitted through the fiber optic cable 10 a photodetector 11, with which the optical sequence of signals is converted into an electrical pulse train. The resulting pulse train is fed to the driver driver 12, which is used to amplify and restore the necessary pulse shape.

0 The generated sequence of pulses is fed to the input of the converter of 13 code formats, which converts a pulse sequence into an interference-free code, converts it into a series of source information, extracts clock pulses, converts serial format B parallel, stores and outputs the corresponding channel of the initial information pulse sequence, which is fed simultaneously to the input of the matching unit 14 (Fig. 3).

I The received information sequence is split in the input element and then goes to the two inputs of the output element of block 14. At this time, the other output of the input element of block 14 is broken. From the separate outputs of the output element of the matching unit 14, the information sequence comes from one output to the inverting one, and from the other to the non-inverting input element of the recovery unit 15, in addition to the matching function of the input and output elements of the blocks and dividing the received information sequence, pulses. The recovery unit 15 may be performed, for example, according to the scheme shown in FIG. 3

When operating in the Speech mode, the information sequence in the form of "single and" zero levels adequate in duration to the positive and negative half-periods of each component of the spectrum enters the inputs of the inverting and non-inverting elements of the recovery unit 15 and if from the outputs of these elements such a sequence is sent to the mating element (for example, a medium point transformer winding), an oscillation is obtained on the secondary winding of the transformer, the period of which is equal to the duration awn sum of durations "single and" zero levels. The shape of the oscillatory process is easily corrected by the inclusion of RC elements in this block, as well as by amplifiers 17, where the speech signal comes from the output of the recovery block 15.

As the amplification and correction unit 17, any ULF can be used that provides the necessary amplification of the spectral components to bring them to the specified parameters so that the energy components of the speech spectrum match the consumer's best perception.

However, the ULF must provide the necessary output power. The output of the amplifier is connected to the “Speech.

The device can operate in several modes. When a digital signal is applied to one of the input block terminals, the signal goes to one of the inputs of the OR 5 element, from the output of which the signal goes to the corresponding input of the converter of 7 code formats, then passes successively through blocks 7–9, cable 10, blocks 11–13, appears on the corresponding output of the converter 13 code formats, goes to the corresponding

the input of the matching unit 14 and arrives at the third output of this block, connected to one of the contacts 16 of the output block.

In the described mode, a plurality of digital signals are transmitted, for example, inter-mashine exchange.

If from block 14 the signal is fed to block 15, through amplifiers 17 to the terminal of speech output 18, then a speech output of information can be produced in this way if an encoded sequence of pulses corresponding to the voice signal is fed to input 6.

If the speech signal is fed to one of the inputs 1, passes through the device in the described manner, but is removed from the third output of block 14, then the speech information can be entered into the computer from the corresponding terminal 16.

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Claims (1)

Invention Formula A device for inputting information comprising code format converters, a matching unit, an emitter unit, a photodetector unit, a shaping amplifier, the output of the first code format converter connected to the input of a matching unit, the output of which is connected to the input of the emitter unit optically connected to the photodetector unit The output of which is connected to the input of the amplifier of the body-maker, the output of which is connected to the input of the second converter of code formats, characterized in that, in order to expand the area, Neny device by allowing the input speech signal, it first entered five and the second group of amplifiers, a group of code converters, a group of signal conditioners, matching units, information recovery units, OR elements, one inputs of which are information inputs of the first group of the device, information inputs of the second group of which are inputs of amplifiers of the first group whose outputs are connected to the inputs of a group of code converters, the outputs of which are connected to the inputs of the forwarder group of signals, the outputs of which are connected to other inputs of the OR elements, the outputs of which connected to the inputs of the first code format converter, the outputs of the second code format converter are connected to the inputs of a group of blocks 0 matching, some outputs of which are information outputs of the first group of the device, other outputs of the group matching blocks are connected to the inputs of the group of information recovery blocks, The g outputs of which are connected to the inputs of amplifiers of the second group, the outputs of which are the information outputs of the second group of the device. kg 3/25 "3 e c D 155LN1 155 LA7 FIG. 2