RU1795439C - Equipment for commutation of optical binary images - Google Patents

Abstract

The invention relates to the field of automation and computer engineering and can be used in various optoelectronic computer systems for processing optical information for reconnecting two-dimensional arrays recorded in optical information pictures. The introduction of light fluxes from a single input to M outputs, additional optoelectronic shutters and picture-type D-latches into the device made it possible to expand the functionality (increase the speed) of the proposed device. 4 ill.

Description

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The invention relates to the field of automation and computer technology and can be used in various optoelectronic computer systems for processing optical information for switching over two-dimensional arrays recorded in optical information pictures.

. The aim of the invention is to expand the functionality (increase speed) due to the ability to perform a commutation of input variables due to the logic processing.

In FIG. 1 is a structural diagram of a device; in FIG. 2 and 3 are examples of the implementation of time delay blocks; in FIG. 4 is an example of the operation of the device using 2 picture operands with a working aperture size of 4x4.

The device comprises (Fig. 1) from the first 1i through the Nth 1n optical inputs of the supply of switched directions connected respectively to the first optical inputs of the time delay blocks, and the parallel optical output of the same block of time delays, where, ..., .. .. H-1 is connected to the second parallel optical input of the (a + 1) -th block of time delays, the second parallel optical input of the first 2i block of time delays is connected to the optical output of the light emitter 3 by means of a collimator 4, the parallel optical output of the H-th block 2H time delays connected to the parallel optical input of the first beam splitter 5i, the first parallel optical output of the b-th beam splitter, where, ..., M-1, M is the number of output switched directions, connected to the parallel optical input of the (b + 1) -th beam splitter ,

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the second parallel optical output of its beam splitter, where, ...,. M, connected to the parallel optical input 7C of the device, the parallel optical output of this optoelectronic shutter 6c is connected to the parallel optical input of the 7th D-latch 8C of the carton type, the parallel optical output of which is connected to the optical output 9c, and the reset input D - latch - connected to the output of the element HE 10, the input of which is connected to the anode of the light emitter 3, the cathode of which is connected to the bus of the zero potential of the device.

The BVZ contains (Fig. 2) an optically controlled transparency 11, the controlling parallel optical input of which is connected to the corresponding parallel optical input of the information operand 1a, which is the first parallel optical input of this BVZ, the second parallel optical input of which is connected to the optical signal input of the transparency 11, the signal parallel optical output of which is connected to the parallel optical input of the beam splitter 12 (LED), the first parallel optical output of which is connected to optical input of the first analyzer 12, the second parallel optical output of LED 12 is connected to the optical input of the second analyzer 14, the plane of polarization of which is perpendicular to the plane of polarization of the first analyzer 13, the optical output of the second analyzer 14 is connected to the optical input of the rotator of the plane of polarization of the light flux, optical the output of which, through the first reflector, is connected to the optical input of the fiber optic bundle 15 (VOZh), the length of which is selected in accordance with the serial number of this VVZ, the optical output of VOZh 15 is connected via a second reflector to the first optical input of the light combiner 16 (CO), the second optical input of which is connected to the optical output of the first analyzer 13, and the optical output of CO 16 is connected to a parallel optical output of this BVZ,

The circuit of another BVZ option (Fig. 3) contains a set of discrete cells, each of which contains the first 17 and second 18 BISPIN photodetectors, the first 19 and second 20 photodiodes, the first 21 and second 22 LEDs, the ohmic terminals of the BISPIN photodetectors connected to the power bus cells; moreover, the set of power leads of all cells form the power supply bus of the BVZ, the electrodes of the substrates of the BISPIN photodetectors are connected respectively to the anodes of the first 19 and second 20

photodiodes, the cathodes of which are connected to the zero potential bus, the locking electrodes of the BISPIN photodetectors 17 and 18 are connected respectively to the anodes

the first 21 and second 22 LEDs, the cathodes of which are connected through the first and second resistors to the zero potential bus, the substrate electrode and the locking electrode of the second BISPIN photodetector 18 are connected by a capacitor; the set of optical inputs of the second 18 BISPIN photodetectors form the first parallel optical input 1V of the BVZ; the second parallel optical input of which forms the totality of the optical inputs of the first 19 photodiodes, and the parallel optical output of this VVZ forms the totality of the optical outputs of the second LEDs 22, in each

the optical output of the first LED 21 is connected to the optical input of the second photodiode 20 and the first BISPIN photodetector 17, the optical output of the second LED is connected to the optical input of the first BISPIN device 17, the capacitance of all cells is equal and correspond to the serial number of this BVZ.

The device operates as follows.

When the values of the information operands 1a () are set, after the signal is supplied, the start of the reset of all D-latches 8c () is performed, on the second

a parallel optical input of the first BVZ is projected a parallel light flux, which starts the first BVZ, at the output of which images Xi and Xb are projected alternately with a time delay n

those. the inverse image is delayed by a time equal to TI. These images serve to start the second BVZ, because correspondingly formed to its second parallel optical input

images. Therefore, images Xi X2, Xi X2 are projected sequentially at the output of the second BVZ 22. Xi Xa, Xi X2. at the output of the last BVZ 2 „, the values of all 2 minterm images Xi Xi ... XH, Xi X2 ... Xn (Ti), X.1 X2 ... XN (T2), ..., XiX2 ... XH (gn), ..., Xi Xa .-. Xn (t + T2 + ... + gn). These images are projected by a beam splitter 6c at the optical inputs of the EIA 6i-6M.

Selection of a sequence of control signals at each of the control inputs 7i-7M of the OZE at the corresponding time instants m, m2. ..., t, ri + r2, ...,

71+ T2 + ... + Tn - 1 + TN POSSIBLE Reach the commutation of any of the input operands of Xa by disjunctions of a certain set of minterms. For example, with (Fig. 4), to commute the image of Xi, you must pass through the corresponding SEZ minterms Xi X2 + Xi Xg, etc. BVZ (Fig. 2, Fig. 3) works as follows.

When the value of the current operand Xa is set at the first parallel optical input of the BVZ, by feeding the image formed by the previous BVZt - BVZa-1, the start of the nth BVZ is achieved. The image f (Xi, ..., Xa-i) is multiplied with the operand Xd by a logical AND, on the optical output of this BVZ, images are projected sequentially in time with a time delay:

f (Xl, .... Xa-l) Xa And f (Xl ..... Xa-l) Xa. Where

f (Xi, ..., Xa-i) is a part of an arbitrary minterm obtained by logically multiplying the values of direct and inverse images Xi, ..., Xa-i. Performing this operation according to the circuit of FIG. 2 is achieved by separating the luminous flux from the banner 11 and selecting mutually perpendicular planes of polarization. The first 13 and second 14 analyzers, at the output of which the required images are formed. In one of the channels, for example, in the case where the image X is inverted, a VOZ 15 is set, the length of which is selected taking into account the required delay, i.e. in each BVZ, a time delay is generated in order to avoid the possibility of crossing (merging) the generated minterm values. It should be noted that for the operation of the BVZ according to the circuit of FIG. 2, the start of the first BVZ-should be carried out by accordingly polarized light (the direction of polarization is the same as at the output), which is achieved by selecting a lens with a correspondingly polarized output light flux. Similarly, the BVZ works: on discrete cells using BISPIN photodetectors. .When the current operand value is set at the first optical input of the BUVZ, the second LED 22 generates an optical signal that reduces the resistance of the first BISPIN photodetector 17 to a value at which the first LED 21 begins to emit, simultaneously irradiating the second photodiode 20 and the optical aperture of the first BISPIN photodetector 17. The first BISPIN photodetector 17, photo diode 19 and LED 21 are the optical RS-trigger at the cell level, the optical aperture of the BISPIN photodetector is S-input e, and the optical aperture of the photodiode is an R input. When an optical signal is applied to the optical input of the first photodiode 19, the LED 5 21 is reset, therefore, the second photodiode 20 becomes unlit, and a short pulse arises at the optical output of the second LED 22, the magnitude of which is proportional to the charge time

0 of the capacitor 23. The capacitances of the capacitors in the cells for each BVZ are selected as follows. in order to ensure its delay time (analogs with the choice of the VOZ length 15 in Fig. 2) in this way, signals corresponding to the values of the first direct signal Xa are sequentially generated at the output of the second LED 5 of the diode 22. then with a time delay of the inverse signal He.

An example of time formation of possible minterm images is disclosed in FIG. 4 () for a 4x4 aperture. The control signals are selected for switching the images from the first optical input to the second optical output. and vice versa, from the second optical input to the first optical output. The connection of the start input to the inputs reset the D-latch 8C with inversion provides a dynamic mode of operation of the device. AT

0 in this case, the frequency of the signals at the start input with a period T b

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Let us prove that the set goal has been achieved. The claimed device has advanced functionality, because along with the most common switching of optical patterns from H optical inputs to M optical outputs

Q on each of these outputs, along with the values Xi, ... XM, can be obtained any other images that are the values of the logical functions of these operands. For example, it is easy to obtain the values of inverse images at optical outputs, which is achieved by choosing the appropriate sequence of control signals at the controlled inputs of the SEZ. This achieves

Q significant ease of management, because the choice of the direction of switching is determined only by a code combination on the control inputs of the SEZ, and it is easy to change the combinations of control signals. Expansion

Functionality can be achieved due to the fact that instead of the SEZ it is possible to use an optical unit that performs a logical AND function, for example, an optically controlled transparency, a unit of discrete elements made on photographic materials using BISPIN photodetectors. In this case, the control signal matrices from 0 and 1 should be specified as control signals 7C. Combinations of such signals in separate parts of the optical

Claims (1)

SUMMARY OF THE INVENTION A device for switching optical binary images, comprising the first through Hth time delay blocks, where H is the number of input switched directions, the first through Kth beam splitters, where (H, M), M is the number of output switched directions, a first optoelectronic shutter, a light emitter and a collimator, wherein the optical outputs of the light emitter are connected to the optical inputs of the collimator, characterized in that, in order to increase the speed, it contains the second through Mth optoelectronic shutters, from (K + 1) -th to R- beamsplitters, where {H, M), from the first to the Mth D-latch of the picture type and the element is NOT, and the start input of the device is connected to the input of the anode of the light emitter and to the input of the element NOT, the output of which is connected to the reset inputs D - lye of the picture type from the first to the Mth, the parallel optical outputs of which are connected respectively to the first to the Mth parallel optical outputs of the device, the output of the cathode of the light emitter is connected to the zero potential bus of the device, from the first to the Nth parallel the apertures will provide switching between different parts of the resulting optical apertures, compiled using the corresponding parts of the optical apertures of the input images. optical information inputs of the device are connected respectively with the first through the H-th first parallel optical inputs of time delay blocks, the optical output of the collimator is connected to the second parallel optical input of the first block of time delays, the parallel optical output of a-ro block of time delays, where, ..., H-1, is connected to the second parallel optical input of the (a + 1) th block of time delays, the parallel optical output of the Hth block of time delays is connected to the parallel optical input of the first beam splitter, the first parallel optical output of the second beam splitter, where, ..., P-1, is connected to the parallel optical input (B + 1) -th beam splitter, the second parallel optical output of the th beam splitter, ..., P, connected to the parallel optical the input of the nth optoelectronic shutter, the control input of which is connected to the cth control input of the device, the parallel optical output of the ith optoelectronic shutter is connected to the parallel optical input of the c-th D-latch picture type. Fi g. 4 Y %  9 ™ Ym // H-tf- M $ I  i / .A ±  s && - / ii bk T xx. ; xg / t 7th FIG. 3