OPTICAL DIGITAL-TO-ANALOGUE CONVERTER Russian patent published in 2023 - IPC G02F7/00 H03M1/66 

FIELD: computer technology.

SUBSTANCE: creation of high-speed information processing and computing devices. The optical digital-to-analog converter contains N-1 optical Y-combiners and N-1 optical transparencies with a constant transmission function, the output of the i-th optical Y-combiner is 1_i, i=1,2,…, N-2, via (i+1)-th optical transparency is connected to the first input of the (i+1)-th optical Y-combiner, the second input of which is the input of the (i+2)-th digit of the device, while the input of the first digit is connected through the first optical transparency to the first input of the first optical Y-combiner, the second input of which is the input of the second digit of the device, and the output of the (N-1)-th optical Y-combiner is the output of the device.

EFFECT: possibility of digital-to-analogue conversion of M-th codes.

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