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Optical feedback strategy based on MSD adder

An adder and strategy technology, which is applied in the calculation using the number system and the non-contact manufacturing equipment for calculation, etc., can solve the problems affecting the running speed of the optical computer, and achieve the effect of improving the calculation efficiency.

Inactive Publication Date: 2014-09-10
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The time it takes to perform an addition operation is three times that of a reconfigurable operator, which affects the speed of the optical computer

Method used

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  • Optical feedback strategy based on MSD adder
  • Optical feedback strategy based on MSD adder
  • Optical feedback strategy based on MSD adder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] refer to Figure 1~Figure 4 , this optical feedback strategy based on MSD adder is characterized by separating the three-step MSD addition steps and implementing it in a pipelined manner; when the first set of data completes T and W operations and is about to enter T' and W' operations, The second group of data enters into T and W operations, the first group of data enters into T2 operations, the second group of data enters into T' and W' operations, the third group of data enters into T and W operations, and so on until all data operations are completed; Combined with the system structure of the MSD adder, data feedback is performed during the addition process, that is, the operation results of T, W are fed back to the code storage space of the T', W' calculator, and the operation results of T', W' are fed back to the T2 operation In the encoding storage space of the device, it is used as the encoding information for the next operation, so that the adder can run contin...

Embodiment 2

[0044] This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0045] The operation steps of the data feedback strategy are as follows:

[0046] 1) According to the mapping relationship between the three light states of each operator and the encoding information, the decoding result is converted into the corresponding encoding information, and the encoding information string is combined into bits;

[0047] 2) Store the respective encoded information strings in the memory according to the base address and offset address of T, W, T', W', and T2 calculators respectively;

[0048] 3) The data in the storage space of the T, W, T', W' calculators is filled with 0 in the intermediate results;

[0049] 4) Carry out data communication; and transmit the encoded information string in the storage space of the T2 calculator to the host computer client through network communication, and clear the data information in the storage space after the tran...

Embodiment 3

[0059] figure 1 It is the structure of the MSD adder of the ternary optical computer, which is located between the encoder and the decoder of the ternary optical computer. It includes the first logic operation unit, the second logic operation unit, the third logic operation unit, ARM development board, the first logic operation part is composed of the first liquid crystal, the first front and rear polarizers, and the first photosensitive array, and is used to simultaneously complete the T operation and W operation involved in the input optical path; the second logic operation part is composed of the second Composed of liquid crystal, the second front and rear polarizers, and the second photosensitive array, it is used to simultaneously complete the T' operation and W' operation involved in the input optical path; the third logical operation part is composed of the third liquid crystal, the third front and rear polarizers , The third photosensitive array is used to complete th...

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Abstract

The invention discloses an optical feedback strategy based on an MSD adder in a kilobit ternary optical computer experimental system. The strategy includes a strategy for converting the encoder result into encoder control information during next input, an address corresponding strategy of feedback data and a middle result zero padding strategy. By means of middle result feedback, the MSD adder is capable of performing the subsequent optional computation continuously and accurately, the problem of the flow line operating manner of the adder is solved to the certain extent, the operating efficiency of the optical computer adder is improved, and the computation result of a group of data can be acquired in almost each clock cycle. The strategy is capable of optimizing the numerical computation capability of a ternary optical processor, playing the advantages of 'giant data bit' and 'high parallelism' of the ternary optical computer in the field of numerical computation and promoting the application of the ternary optical computer in the field of numerical computation.

Description

Technical field [0001] The present invention involves an optical data feedback strategy based on MSD addter. Background technique [0002] In the article "The theory and Structure of MSD Increases in the Three Value Optical Computers" published in the "Chinese Science E: Information Science" published in 2011, the theory of three -value computer MSD plus method and improvement of the three -value computers of the three -value optical computerThe optical feedback technology of additional efficiency, but does not have the realization of technology in the strict sense.When the existing MSD additional additional operation is performed, five logical transformations need to be performed according to the three steps of the MSD plus algorithm, and the result is finally obtained.However, the existing additives do not have the corresponding data feedback area and cannot achieve the feedback technology on LCD or other specific physical devices. [0003] The MSD plus method described in the ...

Claims

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Application Information

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IPC IPC(8): G06F7/50
Inventor 彭俊杰沈戎
Owner SHANGHAI UNIV
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