SU1603334A1 - Optical device for logical processing of images - Google Patents

Abstract

This invention relates to optoelectronic logic devices for parallel image processing. The aim of the invention is to enhance the functionality of the logic device by performing AND, OR, OR-NOT operations and operating in modes similar to the operation of JK and T-flip-flops. The device contains a page-type memory unit with parallel optical inputs and outputs, a sucker-like input, two optically controlled transparencies with direct first optical inputs and induced or direct second optical inputs, the optical input of the memory unit being the output of the device and associated with the second optical input of the first transparency and the first optical input of the second transparency, and the optical inputs of the device are the first optical input of the first transtapant and the second optical input of the second ransparanta. 5 il.

Description

The invention relates to optoelectronic logic devices and can be used in optoelectronic parallel image processing circuits.

The purpose of the invention is to expand the functionality of the device.

FIG. Figure 1 shows the functional optical design of the device; in fig. 2 - an example of a specific implementation of the device; in fig. 3 - examples of the operation of the device in the RS-type flip-flop mode and performing logical operations AND, OR, OR-NOT; in fig. 4 - operation of the device in the mode corresponding to the 1K-trigger; in fig. 5 - operation of the device in the mode of counting T-trigger.

The device (Fig. 1) contains the first 1 and second 2 optically controlled transparencies (OUT), where OUT 1 has, respectively

The first 3 and 4 second optical inputs, OUT 2 has the second 5 and the first 6 optical inputs. The optical output 7 is coupled to the optical output 8 by means of a light-coupling element 9, the output of which is connected to the optical input of a page-type memory unit 10 having a clock input 11. The optical output of the memory unit is connected to the input of the beam-splitting element 12, the output 13 of which is connected to the second optical input 4 of the OAT 1. The output 14 is the output of the device, and the output 15 is connected to the first optical input 6 of the OUT 2. The optical elements 16 and 17 are used for the optical communication.

The device (Fig. 2) contains, for example, a lumen 9 and a beam-splitting 12 elements consisting of two prisms

ABOUT

about

with so with so

4b

18 with translucent mirrors 19 located on the diagonal x of prisms. The paging-type memory unit 10 has a clock input 11. The optical output of the memory unit is connected to the input of the beam-splitting element 12, the output 13 of which is connected to the second optical input 4 of the CCTV 1. Output 14 is the device output and output 15 is connected to the first Optical input 6 OUT 2. For the implementation of optical communications are used reflective elements 16 and 17.

The page-type memory unit 10 is made, for example, in the form of an MxN matrix of optoelectronic D-flip-flops with optical indication of the logical state of each of them, a 2Mx2N matrix of photodetectors connected to the corresponding electrically controlled gates. In this case, the input of each D-flip-flop is optically coupled through the apertures of the electrically controlled gates with the outputs of the corresponding neighboring D-flip-flops. The optical inputs of the D-flip-flops form the parallel optical input of the memory unit 10. The optical indication outputs of the logic state of the O-flip-flops form a parallel optical output of the memory unit 10. The synchronization inputs of the D-flip-flops connected to each other form a clock input, and the inputs of the photodetectors form the control optical input of the memory unit 10.

The device works as follows.

The first case is related to the presence of inverse second inputs 4 and 5, respectively, at OUT 1 and 2. When the power is supplied to OUT 1 and 2, memory unit 10 is prepared for the beginning of work. When a clock signal is applied to clock input 11 of memory block 10 and input sets of optical signals A and B, respectively, H9 optical input 3 OUT 1 and optical input 5 OUT 2, the device operates as a picture type trigger that implements the following function over input operands A and B

Q (t + C (| Q-4KQVC + CQ

where I A, K B, Q is the picture operand located in memory block 10 and describing the state at time t;

 - output set of optical signals formed at the moment of time (t + 1) ;.

C - clock signal.

Moreover, the operations of disjunction, conjunction are performed on each elementary, corresponding to each other, optical signals (picture-type input operands) A and B and picture

operand O located in memory block 10.

The optical RS-flip-flop of the picture type is obtained by connecting to the parallel 5 optical input 3 devices (1 input) an S input, and k parallel optical input 5 devices (To the input) R input. This imposes a restriction on the combinations of input signals of picture

0 operands supplied to the parallel optical inputs 3 and 5 of the device, namely 1K 0.

An example of the operation of the device in the RS-flip-flop mode is shown in FIG. 3. At first

5, the row (Fig. 3) shows an example of performing the function of setting the device into a single state, which is accomplished when the corresponding picture-type operand A is presented, represented as a set

0 single optical signals, to the input 3 of the device in the first cycle of operation after the initial zeroed state of the device. The second line (Fig. 3) shows the reset of the device state on the corresponding

5 cycles of operation by applying to the input 3 devices of the picture operand A, represented by a set of zero optical signals, and to the input 5, a picture operand B, represented by a set of single optical signals.

The third and fourth lines (Fig. 3) present examples of performing the logical AND operation on the operands of the picture type A supplied to the input 3 of the device

5 (5 input) and B applied to the inverted input 5 (P input) of the device during the first cycle of the device operation (after the initial zeroed state of the device).

The fifth line (Fig. 3) shows the execution of the logical addition operation OR on the picture operands A and B. Moreover, the operation is performed in two cycles of operation of the device. In the first cycle, the source operand A is fed to the input 3 of the STATUS. At the same time, a set of zero optical signals is stored at the input 5 and in the memory block 10, as a result of which the image operand of the picture type A is recorded at the output of the device and in the memory block 10. When the next clock pulse arrives, the second operand B of the picture type is input 3 devices and a set of zero optical signals to the device input 5, the output is the result corresponding to the execution of the disjunction of the input images.

The sixth and seventh lines (fig; 3) show an example of performing an INR-NOT operation on image type A and B operands carried out in two cycles of operation

devices, Moreover, when the first clock pulse is applied, after preliminary recording in memory block 10, a set of single optical signals (Q) to the device 5 is supplied with operand A, and to input 3 - a set of zero optical signals; at the second clock pulse, applying the second operand B to input 5, the output is the result corresponding to the execution of the logical operation A + B.

When the device operates in a mode similar to the picture type K-trigger I mode (when the combination of the input IK-1 input signals is enabled), its functionality expands by highlighting the blinking zone of coincidence of the useful input signals of the picture type. An example of this function is shown in FIG. 4, where, by supplying the input operands of picture type A and B, respectively, to the inputs 3 and 5 of the device at the first clock cycle after resetting to zero, a result is obtained containing the blinking coincidence zone of the useful signals of the input picture operands having the single value at the first clock cycle the intensity of the light flux, and with the arrival of each new clock signal and the feeding of the same picture operands of A and B to the inputs 3 and 5 of the device, changes the value of the intensity of the light flux to the opposite.

The proposed device operates in the counting T-flip-flop mode, —If with the arrival of each new clock pulse sent to the clock input 11 of the memory block 10, the optical parallel inputs 3 and 5 of the device (I-, K-inputs) are fed to T- the input represented as a picture-type operand. Then (FIG. 5) the output image formed at the time compared to the image formed at the previous time Q changes the value of the light

current to the opposite in those areas where a set of single optical signals of a picture-type operand supplied to the T input has arrived.

For the case of direct secondary inputs 4 and 5., respectively, for OUT 1 and 2, the device operates as a picture type D-flip-flop if the same picture operand is applied to the optical inputs 3 and 5.

The device has advanced functionality because it is a universal picture-type trigger. The device works as RS, -D-, T-flip-flops, as well as in a mode similar to the mode of operation of the CC-flip-flop. Private cases of device operating modes are performing AND, OR, YLI-NOT logical operations on picture type operands.

Claims (1)

The invention is an optical device for logical image processing, made in the form of a paging-type memory block with parallel optical input, output and clock input, the optical output of the memory block being the output of the device, characterized in that it is additionally introduced with two optically controlled transparencies, having direct first optical inputs and inverse or direct second optical inputs, optical outputs of both transparency optics associated with the optical input of the memory unit, the optical output of which is connected with the second optical input of the first transparency and with the first optical input of the second transparency, while the optical inputs of the device are the first optical input of the first transparency and the second optical input of the second transparency. 1603334 (6 3 TO at 1 Yu HQ 9g / but 7G " . 17 .v  76 /  77   Qt   / i   R- B Q  R five S q   t-1 FIG. J J m qi) -one i t-1 vz Q i + 2 HPpUQHJ coincidence zone T eleven (W t + f FIG. five