RU2130638C1 - Optical digital page unit for float-point calculation of square roots - Google Patents

Abstract

FIELD: radio electronic engineering, in particular, information processing in computer engineering. SUBSTANCE: device has input optical register, matrix of light-guides, light source, optical splitter, optical mask of paraphase zeros, matrix of light guides, optical filter of paraphase ones, matrix of light guides, shift register, matrix of light guides, optical unit for calculation of mantissa square roots, matrix of light guides, output optical register. EFFECT: increased precision, increased reliability. 1 dwg

Description

 The invention relates to electronics and can be used in various computing devices when processing information in a variety of radar, radio navigation and computer systems, both ground and airborne.

 Closest to the proposed is a square-page optical page calculator [1], containing an input optical register, the input of which is an input of a digital computer, an optical shift register and an output optical register, the output of which is the output of a digital computer. The main disadvantage of this device is the relatively low accuracy and reliability of calculations.

 The technical result is to increase the accuracy and reliability of the device.

 This is achieved by the fact that the optical matrices of the first to fifth are introduced into the optical digital page calculator of square roots with a floating point, containing the input optical register, the output of which is the input of the digital computer, the optical shift register and the output optical register, the output of which is the output of the digital computer , a radiation source, an optical expander, an optical paraphase mask "0", an optical paraphase filter "1", an optical calculator of the square roots of the mantissa, and the outputs n (where e n = 2, 3, 4 ... N, and N is the number of order register cells) of the orders of the order of the input optical register through the first and second matrices of optical fibers are optically connected to the (n-1) -th highest bits of the orders of the output optical register, two the lowest discharge of which through the second matrix of optical fibers, the paraphase optical mask is “0”, the optical expander is connected to the optical output of the radiation source, the optical outputs of the mantissa optical register through the third matrix of optical fibers are optically connected to the information input of the optical shear a histra, the controlled input of which is optically connected with the least significant order of the input optical register, the optical outputs of the optical shift register through the fourth fiber matrix, the optical mantissa square root calculator, and the fifth fiber matrix are optically coupled to the optical inputs of the mantissa output optical register.

 This set of essential features and the relationships between them allows you to get a device with more than 10 - 100 times greater accuracy and reliability of the calculations.

 The essence of the invention lies in the fact that on the basis of the original optical algorithm for calculating the square roots of floating-point numbers and the use in the computer of the original fiber-optic methods and schemes for communicating and transferring pages of operands, the original method of forming the lowest order of orders of radical operands, the optical paraphase mask "0" , an optical paraphase filter "1" was able to build an optical digital page calculator of square roots with a floating point, having the above advantages s.

 Thus, the proposed computer has properties that are not inherent in known devices. This is due to a combination of essential features and the new relationships outlined above.

 Comparison of the proposed device with the known indicates that it meets the criterion of "novelty", and the absence of analogues of the distinctive features of the proposed device is about the criterion of "inventive step".

 The drawing shows a diagram of an optical digital page calculator of square roots with a floating point.

 An optical digital page calculator of square roots with a floating point contains an input optical register 1 having bits of orders 1-1 (register of orders) and bits of mantissa 1-2 (register of mantissas), and optical inputs and outputs of orders and mantissas; fiber guide matrix 2; a radiation source 3 having an optical output; optical expander 4; optical paraphase mask "0" 5; matrix of optical fibers 6; optical paraphase filter "1" 7; fiber guide array 8; optical shift register 9 having information and controlled inputs and optical outputs; the matrix of optical fibers 10; mantiss 11 optical square root calculator having optical inputs and outputs; the matrix of optical fibers 12; output optical register 13 having discharges of orders 13-1 and mantissa 13-2 and their corresponding optical inputs of orders and mantissa and output.

 The input optical register 1 is intended for input to the page calculator of radical expressions in the form of optical paraphase signals, including converting them from electrical ones. With the electrical input of the pages of the operands, the register can consist of interconnected electronic memory, for example, on the registers and a matrix of laser diodes, and with optical input at the input of the registers, an additional array of photodetectors is located.

 The matrix of optical fibers 2 is designed to transmit optical signals from a register of the order of 1-1 and can be made, for example, in the form of a fiber optic bundle or based on integrated optical fibers.

 The radiation source 3 is intended for illumination of the optical mask, paraphase "0". As the radiation source 3 can be used, for example, a laser diode.

 The optical expander 4 serves to enable the beam of the radiation source 3 to illuminate the entire optical mask paraphase "0" and can be performed, for example, in the form of a focon.

 The optical paraphase mask "0" 5 is intended for input into the lower two digits of the orders of the register 13 of paraphase zeros and can be performed, for example, in the form of a photographic template of two-digit paraphase zeros.

 The matrix of optical fibers 6 is used to transmit optical signals in the category of orders of the register 13 and can be made on the basis of fiber optic or integrated optical fibers.

 The optical paraphase filter "1" 7 is designed to generate optical control signals for the optical shift register 9 and can be made in the form of a single-phase paraphase "1" photographic template.

 The matrix of optical fibers 8 serves to transmit optical signals of mantissa 1-2 discharges and can be made on the basis of fiber-optic or integrated-optical fibers.

 The optical shift register 9 is designed to shift the mantissa operands by one bit and can be made in the form of a controlled solution of polarization switches and a plate of a birefringent crystal or matrix of polarizing splitters.

 The matrix of optical fibers 10 is used to transmit optical signals from the register 9 to the computer 11 and can be made on the basis of fiber optic or integrated optical fibers.

 The optical square root calculator 11 is designed to extract square roots from the mantissa pages. As such a calculator can be used, for example, [1].

 The matrix of optical fibers 12 is used to transmit optical signals from the computer 11 to the mantissa bits of the register 13.

 The output optical register 13 is intended for the formation, storage and delivery of the result and can be performed, for example, from a series of photodetector arrays and electronic registers connected in series with an electrical output or an array of laser diodes with an optical output can be located.

 The algorithm for performing operations.

 In the proposed optical digital page computer with a floating point, the operation of extracting square roots from the pages of the operands is performed according to the following algorithm.

 When extracting the square root, the order of the radical expression is reduced to an even number. To ensure order parity for any operand in the special processor, zero is always stored in its lowest order, and the mantissa is shifted one bit to the left if the order of the input operand is odd. After this, the order is multiplied by two by shifting one bit to the left, and their square mantissa is extracted. In any case, the result is immediately normalized.

 The work of the calculator. An optical digital computer with a floating point works as follows. The input page of the operands is input to the input of the optical register 1. Optical signals of word orders from the outputs of bits of orders 1-1 through the matrices of optical fibers 2 and 6 are supplied to bits of orders 13-1 of the output optical register 13. In this case, the end face of the matrix of optical fibers 2 is shifted relative to the end of the matrix optical fibers 6 to the left for one paraphase discharge. Similarly, by one paraphase discharge, the end face of the matrix of optical fibers 6 is shifted to the left at the input of discharges of orders 13-1 of the output optical register 13. Using the radiation source 3, an optical expander 4 and a two-bit optical paraphase mask "0" 5, paraphase are introduced into the lower two discharges of the orders of register 13 zeros. In the input end face of the matrix of optical fibers 2, all bits of orders 1-1 of register 1 are entered, except for the minor. The least significant discharge of orders 1-1 through a single-bit optical paraphase filter "1" 7, which selects the single least significant bits of the operands, is fed to the controlled input of the optical shift register 9 as control signals.

 The optical signals of the mantissa page through the matrix of optical fibers 8 are fed to the optical shift register 9, in which only those operands are shifted by one bit to the left, on the corresponding control inputs of the register 9 of which there are unit signals. The optical signals from the register 9 through the matrix of optical fibers 10 are fed to a computer 11, which performs the operation of extracting square roots from the mantissa page and transmits the result through the matrix of optical fibers 12 to the mantissa bits 13-2 of the output optical register 13. The output optical register 13 generates and stores the calculation result and if necessary transfers it to external devices.

 Using the invention will allow to realize, using optical methods, the operation of square roots in various computing devices, increasing their accuracy and reliability by 10-100 times. Such devices can be widely used in a variety of radar, radio navigation and computer systems, both ground and airborne.

Claims (1)

 An optical digital page calculator of square roots with a floating point, containing an input optical register, the input of which is the input of a digital computer, an optical shift register and an output optical register, the output of which is the output of a digital computer, characterized in that the first to fifth fiber arrays are introduced, the source radiation, an optical expander, an optical paraphase mask "0", an optical paraphase filter "1", an optical calculator of the square roots of the mantissa, and the outputs n (where n = 2, 3, 4 ..., N, and N is the maximum number of order bits) of orders of the order of the input optical register through the first and second matrix of optical fibers are optically connected with the (n - 1) -th highest bits of the orders of the output optical register, the two least significant bits of which a second array of optical fibers, a paraphase optical mask “0”, an optical expander are connected to the optical output of the radiation source, the optical outputs of the mantissa of the input optical register are optically connected through the third array of optical fibers to the information input of the optical motor register, the controlled input of which is optically coupled to the least significant order of the input optical register through the paraphase optical filter "1", the optical outputs of the optical shift register through the fourth matrix of optical fibers, the optical mantissa square root computer, and the fifth matrix of optical fibers are optically connected to the optical inputs of the mantissa of the output optical register.